JP7444112B2 - display device - Google Patents

Description

The disclosure in this specification relates to a display device.

Patent Document 1 discloses a display device that displays images. This display device has a display and a back cover. The display has a display surface that displays an image. The back cover is provided on the back side of the display. This display device is mounted on a vehicle and is installed embedded in an instrument panel.

Japanese Patent Application Publication No. 2015-217815

If an external force is applied to the back cover, such as when a viewer viewing the image grabs the back cover, the back cover may be deformed. If stress is concentrated on the display due to such deformation of the back cover, there is a concern that an abnormality may occur in the display.

One objective of the present disclosure is to provide a display device that can suppress occurrence of abnormality in an image display section.

The multiple embodiments disclosed in this specification employ different technical means to achieve their respective objectives. Furthermore, the claims and the reference numerals in parentheses described in this section are examples of correspondences with specific means described in the embodiments described later as one aspect, and are intended to limit the technical scope. isn't it.

In order to achieve the above object, one aspect disclosed is:
A display device (10) attached to an attachment target (102),
an image display section (20) having a display surface (22) for displaying the image (V) and a display back surface (24) on the opposite side to the display surface;
A display case (50) that covers the back of the display and is connected to the attachment target,
The display case is
The back of the case (52) facing away from the display surface,
a case proximal end (58) extending in the longitudinal direction (X) of the back of the case and connected to the attachment target;
a case tip (57) provided on the opposite side of the case base end in the transverse direction (Y) of the case back and extending in the longitudinal direction;
It has
A plurality of image display units are arranged along the tip of the case.
A reinforcing part (90 ) for reinforcing the display case is provided in the display case only on the case front end side of the case front end side and the case base end side so as to extend along the case front end ,
In the display device, the reinforcing section extends over two adjacent image display sections in the longitudinal direction .

On the other hand, according to the above aspect, in the display case, the reinforcing portion extends along the leading end of the case. With this configuration, for example, even if an external force is applied near the tip of the case, this external force is likely to be dispersed throughout the reinforcing portion. Therefore, local deformation of the leading end of the case can be suppressed by the reinforcing portion. Therefore, it is possible to suppress the display cover from being locally deformed, stress concentrated on the image display section, and abnormalities occurring in the image display section.

FIG. 1 is a diagram showing a virtual image display device mounted on a vehicle according to a first embodiment. FIG. 2 is a vertical cross-sectional view of the image display device. FIG. 3 is a diagram showing the configuration of a display unit. FIG. 3 is a diagram showing a configuration around a virtual image display device in a vehicle interior. FIG. 1 is a perspective view showing the configuration of an image display device. FIG. 3 is a plan view of the image display device viewed from the back side of the hood. FIG. 6 is a diagram for explaining a case where an external force is applied to the visor hood. FIG. 7 is a diagram for explaining a case where an external force is applied to a visor hood of a comparative example. FIG. 7 is a plan view of the image display device in Modification 1 of the first embodiment, viewed from the back side of the hood. FIG. 7 is a vertical cross-sectional view of an image display device according to a second modification of the first embodiment. FIG. 7 is a vertical cross-sectional view of an image display device according to modification 3 of the first embodiment. FIG. 7 is a diagram illustrating the configuration around the virtual image display device in the vehicle interior in Modification 4 of the first embodiment. FIG. 7 is a diagram showing an image display device mounted on a vehicle according to a second embodiment. FIG. 2 is a vertical cross-sectional view of the image display device. FIG. 3 is a diagram showing a configuration around an image display device in a vehicle interior. FIG. 2 is a perspective view of an image display device. FIG. 6 is a diagram for explaining a case where an external force is applied to the visor hood. FIG. 7 is a diagram for explaining a case where an external force is applied to a visor hood of a comparative example. FIG. 7 is a perspective view of an image display device according to modification 5 of the second embodiment. FIG. 7 is a vertical cross-sectional view of an image display device according to modification 6 of the second embodiment. FIG. 7 is a perspective view of an image display device according to modification 7 of the second embodiment. FIG. 7 is a diagram showing a configuration around an image display device in a vehicle in Modification 8 of the second embodiment. FIG. 7 is a perspective view showing the configuration around a virtual image display device in a vehicle interior in a third embodiment. FIG. 3 is a diagram showing the arrangement of display units in an image display device. FIG. 3 is a diagram showing the arrangement of displays in an image display device. FIG. 2 is a block diagram showing the electrical configuration of an image display device. FIG. 3 is a diagram for explaining an image displayed on a display surface. FIG. 3 is a diagram for explaining a virtual image displayed by a reflective surface. FIG. 7 is a diagram for explaining an image displayed on a display surface in a comparative example. FIG. 7 is a diagram for explaining a virtual image displayed by a reflective surface in a comparative example. FIG. 9 is a perspective view showing a reflective mirror in modification example 9 of the third embodiment. FIG. 7 is a diagram showing a configuration around a virtual image display device in a vehicle interior in a fourth embodiment. FIG. 3 is a front view of the image display device viewed from the display surface side. FIG. 34 is a sectional view taken along the line XXXIV-XXXIV in FIG. 33. FIG. 3 is a cross-sectional view of the area around the display overlapping portion. The figure which shows the virtual image displayed by the reflective surface. FIG. 7 is a cross-sectional view of the vicinity of the display overlapping portion in Modification 10 of the fourth embodiment.

Hereinafter, a plurality of embodiments for carrying out the present disclosure will be described with reference to the drawings. In each form, parts corresponding to matters explained in the preceding form may be given the same reference numerals and redundant explanation may be omitted. When only a part of the configuration is described in each form, the other forms previously described can be applied to other parts of the structure. Not only combinations of parts that specifically indicate that combinations are possible in each embodiment, but also partial combinations of embodiments even if it is not explicitly stated, as long as there is no particular problem with the combination. It is also possible.

<First embodiment>
The image display device 10 shown in FIG. 1 is mounted on a vehicle 100. The image display device 10 is provided on the instrument panel 102 in a state where it is exposed to the cabin 101 of the vehicle 100. The instrument panel 102 is an instrument panel, and is provided in front of a seat such as a driver's seat. The instrument panel 102 is an interior panel that forms the interior of the vehicle interior 101 . The interior panel forms a finished surface in the vehicle interior 101 that has been subjected to finishing processing. A steering wheel 105 is located between the driver's seat and the instrument panel 102. In addition to the steering wheel 105, there is a front windshield 106 in front of the driver's seat. The front windshield 106 is located above the instrument panel 102. The front of the seat is the front of the vehicle 100. In addition to the front windshield 106, the windshield of the vehicle 100 includes a side windshield and the like.

The image display device 10 displays various information as an image V. The image display device 10 corresponds to a display device. The various information includes, for example, vehicle information and driving information. The vehicle information is information indicating the amount of electricity stored in the on-board battery, and the traveling information is information indicating the traveling speed, traveling mode, traveling distance, etc. of the vehicle 100. Further, the various information includes navigation information, entertainment information, air conditioning information, camera information, etc. For example, the navigation information is information indicating the current value of the vehicle 100, information guiding the route from the current location to the destination, and the like. Camera information is information captured by an imaging device such as a camera. The camera information includes information captured around the vehicle, such as behind the vehicle 100.

The image display device 10 has a display surface 22, and can display an image V on this display surface 22. The display surface 22 displays the image V by outputting image light. The image display device 10 has a hood back 52 in addition to the display surface 22. The image display device 10 is formed into a plate shape as a whole. The hood back surface 52 faces the opposite side from the display surface 22 in the thickness direction of the device. The device thickness direction is the thickness direction of the image display device 10, and in this embodiment is a direction extending vertically. The device thickness direction is a direction perpendicular to the display surface 22.

The image display device 10 is included in the virtual image display device 11 together with the reflective mirror 15 . The virtual image display device 11 is mounted on the vehicle 100 and displays the image V as a virtual image Vi. The reflecting mirror 15 is a reflecting member that reflects image light, and is sometimes referred to as a reflecting mirror. The reflective mirror 15 has a reflective surface 16, and reflects the image light on the reflective surface 16 to display a virtual image Vi. The reflective surface 16 is included in one of the pair of plate surfaces that the reflective mirror 15 has. The reflective mirror 15 is a member that transmits and reflects image light incident on the reflective surface 16. The reflecting mirror 15 corresponds to a virtual image display unit that displays a virtual image using image light.

The reflective mirror 15 is provided on the instrument panel 102 with a reflective surface 16 exposed to the vehicle interior 101. The reflective mirror 15 is embedded in the instrument panel 102 and fixed to the instrument panel 102. The reflective surface 16 faces obliquely upward so as to face the seat side. The reflective surface 16 is easily visible to the passenger sitting in the seat.

The image display device 10 is provided so that the image light from the display surface 22 is reflected by the reflective surface 16 toward the seat side. The image display device 10 is provided above the reflective mirror 15 with the display surface 22 facing downward and the hood back surface 52 facing upward. The display surface 22 and the reflective surface 16 are in a state facing each other. For the occupant sitting in the seat, the virtual image Vi displayed by the image light appears as if it were located further back than the reflective surface 16.

In the virtual image display device 11, the occupant as a viewer does not directly view the display surface 22, but indirectly views the display surface 22 by viewing the reflective surface 16. In this embodiment, the reflective surface 16 is a visible surface Sv that is visually recognized by the occupant. The occupant can visually recognize the virtual image Vi by viewing the reflective surface 16 that is the viewing surface Sv.

As shown in FIGS. 1 and 4, the instrument panel 102 has a front portion 102a, a back portion 102b, and side portions 102c. The front portion 102a and the rear portion 102b are arranged in the longitudinal direction of the vehicle. The vehicle longitudinal direction is the longitudinal direction of the vehicle 100. When the seat side of the instrument panel 102 is referred to as the front side, the front portion 102a forms the front end of the instrument panel 102. The back portion 102b forms the back end of the instrument panel 102. The back portion 102b is located at a higher position than the front portion 102a. The reflective mirror 15 is arranged between the front part 102a and the back part 102b. The reflective mirror 15 is in a state in which it spans between a front portion 102a and a rear portion 102b such that a reflective surface 16 faces obliquely upward.

The side portions 102c form each of a pair of side end portions of the instrument panel 102, and are included in the instrument panel 102. The pair of side portions 102c are arranged in the vehicle width direction. The vehicle width direction is the width direction of the vehicle 100, and is a direction perpendicular to the vehicle longitudinal direction. The side portion 102c extends in the longitudinal direction of the vehicle, and spans the image display device 10 and the reflective mirror 15 between the front portion 102a and the rear portion 102b.

The image display device 10 protrudes toward the front from the back portion 102b. The image display device 10 is fixed to the inner part 102b. The back end of the image display device 10 is a base end fixed to the back portion 102b. The front end of the image display device 10 is a tip located above the front portion 102a. The display surface 22 is inclined with respect to the reflective surface 16. The distance between the display surface 22 and the reflective surface 16 increases as the position nearer to the front end of the image display device 10 increases. The display surface 22 extends in the horizontal direction or in a direction slightly inclined with respect to the horizontal direction.

The image display device 10 is provided between the reflective surface 16 and the front windshield 106, and covers the reflective surface 16 from above. The hood back 52 faces the front windshield 106. When sunlight passes through the front windshield 106 and enters the vehicle interior 101, this sunlight tends to hit the hood back 52, but it hardly hits the reflective surface 16. The occupant can easily view the virtual image Vi on the viewing surface Sv because sunlight does not hit the reflective surface 16, which is the viewing surface Sv.

As shown in FIG. 2, the image display device 10 includes a display 20, a heat insulator 30, a heat radiator 40, a visor hood 50, and a hood cover 60. In the image display device 10, a display 20, a heat insulator 30, and a heat radiator 40 are included in a display unit 70, which will be described later.

Display 20 has a display surface 22 and a display back surface 24. The display 20 is formed into a plate shape and has a pair of plate surfaces. In the display 20, one board surface is a display front surface 21, and the other board surface is a display back surface 24. The display front surface 21 has a display surface 22 and a frame surface 23 (see FIG. 3). The display surface 22 has a horizontally long rectangular shape. The frame surface 23 has a rectangular frame shape and extends along the outer periphery of the display surface 22 . The display 20 is capable of emitting image light from the display surface 22. No image light is emitted from the frame surface 23. The display surface 22 is a display area where the image V is displayed, and the frame surface 23 is a non-display area where the image V is not displayed. The display 20 corresponds to an image display section, and the display back surface 24 corresponds to a display back surface. Display 20 is sometimes referred to as an indicator.

The reflective mirror 15 displays the image V on the display surface 22 as a virtual image Vi, and displays the frame surface 23 as a virtual image V23 (not shown). The virtual image Vi of the image V is displayed by image light, whereas the virtual image V23 of the frame surface 23 is displayed simply by the reflection of the frame surface 23 on the reflection mirror 15. Therefore, for the occupant, the virtual image Vi displaying the image V is more noticeable than the virtual image V23 showing the frame surface 23. For example, the virtual image V23 is displayed so slightly that the occupant can barely see it.

The color of the frame surface 23 is such that the virtual image V23 is hard to stand out. For example, the color of the frame surface 23 is black. Further, the color of the frame surface 23 may be the same color or similar color to the color of the display surface 22 in the off state in which the display surface 22 is not displaying the image V. Further, the color of the frame surface 23 may have at least one of saturation and brightness lower than the color of the display surface 22 in the off state. In addition, the color of the frame surface 23 may be the same color or similar color to the background among various information and the background included in the image V.

The display 20 is a self-luminous display section. The display 20 includes, for example, an organic EL display. Organic EL displays include organic light emitting diodes. Organic light-emitting diodes are sometimes referred to as OLEDs, which is an abbreviation for Organic Light-Emitting Diode. The display 20 has a plurality of display elements such as organic EL elements. The plurality of display elements are arranged in a matrix along the display surface 22, and each emits light that becomes image light.

Since the display 20 is self-luminous, it does not require a backlight as a light source. In the display 20 configured without a backlight in this manner, it is possible to display the black portion of the image V by stopping light emission from the light emitting elements. On the other hand, unlike this embodiment, in a backlit display configured to include a backlight, light from the backlight may slightly leak from the black portion of the image V. If even a small amount of light from the backlight leaks from the black portion of the image V, the black portion or its surroundings will appear whitish.

The visor hood 50 accommodates the display 20, the heat insulating section 30, and the heat dissipating section 40 in a state where the image light from the display surface 22 can be directed toward the reflecting mirror 15. The visor hood 50 is made of a resin material or the like and has light blocking properties. The visor hood 50 is formed into a plate shape as a whole. The thickness direction of the visor hood 50 is the device thickness direction. The visor hood 50 covers the display back surface 24 of the display 20. The visor hood 50 corresponds to a display case, and is sometimes referred to as a housing case or a meter hood. The visor hood 50 has a hood front surface 51 in addition to a hood back surface 52. The visor hood 50 is formed into a plate shape as a whole and has a pair of plate surfaces. In the visor hood 50, one plate surface is a hood back surface 52, and the other plate surface is a hood front surface 51. The hood back 52 corresponds to the back of the display case and the back of the case.

The visor hood 50 has a hood recess 53 provided on the front surface 51 of the hood. The hood recess 53 is a recess that is recessed toward the hood rear surface 52 in the hood front surface 51 . The hood recess 53 is open toward the side opposite to the hood back surface 52. The hood recess 53 is provided at a position spaced inward from the outer peripheral edge of the hood front surface 51. The hood front surface 51 extends along the outer peripheral edge of the hood recess 53 and has a frame shape. The hood recess 53 forms a recessed opening 56 in the hood front 51. The recessed opening 56 is an opening formed by the open end of the hood recess 53.

The inner surface of the hood recess 53 includes a recessed bottom surface 54 and a recessed wall surface 55. The concave bottom surface 54 is the bottom surface of the hood recess 53 and faces the opposite side from the hood back surface 52 in the device thickness direction. The concave bottom surface 54 extends along the hood back surface 52. The concave wall surface 55 extends along the outer peripheral edge of the concave opening 56. The concave wall surface 55 extends between the outer circumferential edge of the concave bottom surface 54 and the inner circumferential edge of the hood front surface 51 in the thickness direction of the device.

The display 20 is housed in the hood recess 53 with the display surface 22 facing away from the recessed bottom surface 54. The concave bottom surface 54 faces the display back surface 24 and corresponds to a case-facing surface. Concave bottom surface 54 extends along display back surface 24 . The visor hood 50 covers the display 20 from the display back 24 side. The visor hood 50 is located between the display 20 and the front windshield 106 and functions as a light shielding plate. Sunlight traveling toward the display 20 through the front windshield 106 is blocked by the visor hood 50. Therefore, the visor hood 50 prevents the display 20 from receiving direct sunlight.

The visor hood 50 has a hood distal end 57 and a hood proximal end 58. The hood distal end portion 57 forms the distal end portion of the image display device 10 , and the hood base end portion 58 forms the proximal end portion of the image display device 10 . The visor hood 50 is fixed to the back part 102b, and protrudes like an eave toward the front from the back part 102b. The visor hood 50 is a member attached to the instrument panel 102 , and is attached to the instrument panel 102 in the vehicle interior 101 . The visor hood 50 is cantilevered by the inner portion 102b and is sometimes referred to as an eaves member. The visor hood 50 forms the interior of the vehicle compartment 101.

The hood cover 60 is fixed to the visor hood 50 while covering the recessed opening 56. The hood cover 60 has translucency and is made of, for example, a resin material or a glass material. The hood cover 60 is formed into a plate shape and has a pair of plate surfaces. In the hood cover 60, one plate surface is a cover front surface 61, and the other plate surface is a cover rear surface 62. Both the cover front surface 61 and the cover rear surface 62 extend along the display surface 22. The cover front surface 61 faces the opposite side from the display surface 22. The cover back surface 62 faces the display surface 22 and is opposed to the display surface 22. The hood cover 60 is arranged at a position spaced toward the front from the display surface 22. The image light emitted from the display surface 22 passes through the hood cover 60 and is irradiated onto the reflecting mirror 15 .

The heat radiation section 40 radiates heat from the display 20 to the outside of the visor hood 50. The heat radiation part 40 has a heat radiation plate part 41 and a radiation fin 44. Both the heat sink portion 41 and the heat sink fins 44 are made of a metal material or the like and have thermal conductivity.

The heat sink section 41 extends along the display back surface 24 and is provided between the display back surface 24 and the heat insulating section 30 . The heat sink portion 41 is a heat transfer material and forms a heat transfer layer. The heat sink portion 41 has a heat sink front surface 42 and a heat sink back surface 43. The heat sink portion 41 is formed into a plate shape and has a pair of plate surfaces. In the heat dissipation plate section 41, one plate surface is a heat dissipation front surface 42, and the other plate surface is a heat dissipation rear surface 43. The heat dissipation front surface 42 is overlapped with the display back surface 24, and the heat dissipation back surface 43 faces the concave bottom surface 54. The heat dissipation plate section 41 and the display 20 are fixed to each other by bonding the heat dissipation front surface 42 and the display back surface 24 with an adhesive or the like.

The radiation fins 44 are thermally connected to the radiation plate portion 41. The heat radiation fin 44 extends from the heat radiation plate portion 41 toward the outside of the visor hood 50, and corresponds to a heat radiation extension portion. The radiation fin 44 has a plurality of fin parts and a connection part that connects these fin parts. The radiation fins 44 are exposed to the outside of the visor hood 50. The heat radiation fins 44 extend from the heat radiation plate portion 41 toward the hood front surface 51 side in the device thickness direction. The radiation fin 44 is provided at a position spaced apart from the hood recess 53 toward the hood base end 58 side. The heat radiation fins 44 are located apart from the display 20 on both the hood base end 58 side and the hood back side 52 side. The radiation fin 44 is covered from above by at least one of the visor hood 50 and the instrument panel 102. In the vehicle interior 101, irradiation of sunlight onto the radiation fins 44 is blocked by at least one of the visor hood 50 and the instrument panel 102.

The heat radiation fins 44 are detachably connected to the heat radiation plate portion 41. The heat radiation fins 44 are fixed to the heat radiation plate portion 41 using fixing tools such as screws, for example. For example, the connection portion of the heat radiation fin 44 and the heat radiation plate portion 41 are connected inside the hood recess 53. In the heat dissipation section 40, the heat dissipation plate section 41, the heat dissipation fins 44, and the connectors form a heat transfer path. When the display 20 generates heat as the display 20 is driven, this heat is radiated downward from the instrument panel 102 from the heat radiating fins 44 via the heat radiating plate section 41. The heat transfer path of the heat radiation section 40 is a heat radiation path that radiates the heat of the display 20 to the outside of the visor hood 50.

The heat insulating section 30 restricts the heat of the visor hood 50 from being transmitted from the concave bottom surface 54 to the display 20. The heat insulating section 30 is sometimes referred to as a heat transfer regulating section. The heat applied to the visor hood 50 includes solar heat. For example, when the back surface 52 of the hood is irradiated with sunlight, the visor hood 50 receives solar heat from the sunlight. Sunlight is a type of external light that passes through the windshield and illuminates the hood rear surface 52. When the heat imparted to the visor hood 50 by irradiating the hood back surface 52 with external light is referred to as external light heat, sunlight is a type of external light heat.

In the image display device 10, there are two separate heat paths. One of the two heat paths is an adiabatic path where the heat insulating section 30 blocks solar heat, and the other is a radiation path through which the heat radiating section 40 radiates heat from the display 20. The heat insulation path is on the hood back side 52 side of the image display device 10, and the heat radiation path is on the hood front side 51 side. The heat insulation path and the heat radiation path are on opposite sides of each other in the thickness direction of the device.

The heat insulating section 30 is a heat insulating material made of a resin material, a fiber material, or the like, and has heat insulating properties. The thermal conductivity of the heat insulating section 30 is, for example, approximately the same as or lower than that of air. Examples of heat insulating materials include those that combine resin foam or nonwoven fabric with high-performance heat insulating materials such as silica airgel, and flexible vacuum heat insulating materials. The heat insulating section 30 forms a heat insulating layer. For example, the heat insulating properties of the heat insulating section 30 are higher than the heat insulating properties of the visor hood 50. The thermal conductivity of the heat insulator 30 does not change easily even if the temperature of the heat insulator 30 changes. On the other hand, the thermal conductivity of air tends to change as the temperature of the air changes. For this reason, for example, in a configuration in which the heat insulating layer is formed of air, unlike the present embodiment, there is a concern that the heat insulating performance of the heat insulating layer changes as the temperature of the heat insulating layer changes.

The heat insulating section 30 is an elastic member having elasticity and stretchability, and is elastically deformable. The heat insulating part 30 elastically deforms or flexibly expands and contracts as an external force is applied to the heat insulating part 30 . The heat insulator 30 expands and contracts in response to changes in the temperature of the heat insulator 30. For example, the heat insulating section 30 expands as the temperature rises and contracts as the temperature falls. Furthermore, the flexibility of the heat insulating part 30 may change depending on the temperature change of the heat insulating part 30. For example, the heat insulating section 30 may become more flexible as the temperature rises, and become less flexible as the temperature falls. The heat insulating part 30 is more likely to linearly expand than the visor hood 50 and the heat sink part 41 or to be easily deformed by external force. That is, the linear expansion coefficient of the heat insulating part 30 is larger than each of the linear expansion coefficients of the visor hood 50 and the heat sink part 41, or the tensile strength and Young's modulus are lower.

The heat insulating section 30 extends along the concave bottom surface 54 and is provided between the concave bottom surface 54 and the heat sink section 41 . The heat insulating section 30 is formed into a plate shape and has a pair of plate surfaces. In the heat insulating section 30, one plate surface is a heat insulating front surface 31, and the other plate surface is a heat insulating back surface 32. The heat insulating front surface 31 is stacked on the heat dissipating back surface 43 and is bonded to the heat dissipating back surface 43 with an adhesive or the like. The insulating front surface 31 faces the display back surface 24 . The heat insulating back surface 32 is overlapped with the concave bottom surface 54 and is bonded to the concave bottom surface 54 with an adhesive or the like. The heat insulating section 30 is fixed to both the heat sink section 41 and the visor hood 50.

The display 20 is fixed to the concave bottom surface 54 via the heat sink section 41 and the heat insulating section 30. The elastically deformable heat insulating section 30 is elastically deformed in accordance with the relative displacement of the display 20 and the heat sink section 41 with respect to the visor hood 50. For example, when vibrations accompanying the running of the vehicle 100 are applied to the image display device 10, a relative displacement of the display 20 with respect to the visor hood 50 occurs, and the vibrations of the display 20 increase. suppressed by Similarly, the elastic deformation of the heat insulator 30 suppresses the increase in vibration of the heat sink 41 and the display 20 due to relative displacement of the heat sink 41 with respect to the visor hood 50 . The relative displacement of the display 20 and the heat sink part 41 with respect to the visor hood 50 includes deformation of at least one of the visor hood 50, the display 20, and the heat sink part 41.

Further, vibrations of the display 20 are suppressed by damping the vibrations and supporting the back by preloading. For example, unlike this embodiment, in a configuration in which there is an air layer instead of the heat insulating section 30 on the back side of the display 20, there is a concern that the display 20 may easily vibrate without obtaining an additional effect of vibration suppression. .

As shown in FIG. 3, the display 20 is included in a display unit 70. The display unit 70 is included in the image display device 10. In addition to the display 20, the display unit 70 includes a circuit board 71 and a connection cable 72. The circuit board 71 controls the display 20 by controlling light emitting elements and the like. The circuit board 71 has electronic components mounted thereon, and constitutes, for example, a driver circuit. The connection cable 72 electrically connects the circuit board 71 and the display 20 and inputs a signal from the circuit board 71 to the display 20. The connection cable 72 is a flexible belt-shaped cable, for example, a flexible flat cable. A plurality of connection cables 72 are arranged along the outer surface of the display 20.

The display unit 70 is housed in the visor hood 50. That is, the visor hood 50 houses a circuit board 71 and a connection cable 72 in addition to the display 20. In the visor hood 50, a circuit board 71 is provided at a position spaced apart from the display 20 toward the hood base end 58 side. In the display unit 70, irradiation of sunlight onto the circuit board 71 and the connection cable 72 is blocked by at least one of the visor hood 50 and the instrument panel 102. Note that the circuit board 71 and the connection cable 72 do not need to be housed in the visor hood 50 as long as the circuit board 71 and the connection cable 72 are blocked from being irradiated with sunlight.

As shown in FIG. 4, in the vehicle 100, a pair of A-pillars 108 are arranged in the vehicle width direction. The A-pillar 108 is provided side by side with the front windshield 106 in the vehicle width direction. The A-pillar 108 corresponds to a pillar and is sometimes referred to as a front pillar. The front windshield 106 extends across a pair of A-pillars 108 in the vehicle width direction.

The virtual image display device 11 extends in the vehicle width direction. The virtual image display device 11 is installed in the vehicle 100 so that the device width direction is in the vehicle width direction. The device width direction is the width direction of the image display device 10. In the virtual image display device 11, the image display device 10 and the reflective mirror 15 both extend in the vehicle width direction. The image display device 10 and the reflective mirror 15 extend in the vehicle width direction at least at a position in front of the driver's seat. In the image display device 10, a visor hood 50 and a hood cover 60 extend in the vehicle width direction. For example, the visor hood 50, the hood cover 60, and the reflective mirror 15 are all extended across both ends of the instrument panel 102 in the vehicle width direction. In this case, the visor hood 50, the hood cover 60, and the reflective mirror 15 are all stretched across the pair of A-pillars 108. A plurality of display units 70 are arranged in the vehicle width direction. In the plurality of display units 70, a plurality of displays 20 and circuit boards 71 are arranged along the concave bottom surface 54 in the vehicle width direction.

In the virtual image display device 11, a plurality of display surfaces 22 are arranged in the vehicle width direction. The virtual images Vi displayed by each of these display surfaces 22 are arranged side by side in the vehicle width direction on the reflection mirror 15. For example, the plurality of virtual images Vi are lined up across both ends of the instrument panel 102 in the vehicle width direction.

As shown in FIG. 5, the display unit 70 includes a heat insulating section 30 and a heat dissipating section 40. In the display unit 70, the ends of the display 20, the heat insulating section 30, and the heat sink section 41 in the vehicle width direction are lined up in the device thickness direction. In the image display device 10, a plurality of the display 20, the heat insulating section 30, and the heat sink section 41 are arranged in plurality in the vehicle width direction along the concave bottom surface 54. The plurality of display units 70 are each individually fixed to the concave bottom surface 54. Therefore, each of the plurality of display units 70 can be individually attached to and detached from the visor hood 50.

In the plurality of displays 20, a plurality of display front surfaces 21 are arranged in the width direction of the device. All of the plurality of display front surfaces 21 face the reflective surface 16. In these display front surfaces 21, each display surface 22 and frame surface 23 face the reflective surface 16. In the plurality of display front surfaces 21, the respective frame surfaces 23 are of the same color or similar colors. The color of these frame surfaces 23 is, for example, black, and the saturation and brightness are the same. Note that the plurality of frame surfaces 23 may differ in at least one of hue, saturation, and lightness, but the smaller the difference, the better.

In the virtual image display device 11, a plurality of display surfaces 22 and a plurality of frame surfaces 23 are provided, whereas one reflective surface 16 and one cover front surface 61 are provided. In the virtual image display device 11, a plurality of virtual images Vi generated from a plurality of images V are collectively displayed on one reflective surface 16. As described above, on the reflective surface 16, the virtual image Vi that reflects the image V is more noticeable than the virtual image V23 that reflects the frame surface 23. Therefore, for the occupant, the plurality of virtual images Vi are easily seen as being integrated rather than being partitioned by the frame surface 23.

The plurality of displays 20 are provided at positions where the image light emitted by each display does not block each other. In the two adjacent displays 20, one display 20 is provided at a position where it does not block the image light emitted from the other display 20.

In the plurality of display units 70, the respective thickness dimensions of the respective displays 20, heat insulating sections 30, and heat sink sections 41 are the same and almost the same. In the plurality of display units 70, each display surface 22, heat insulation front surface 31, and heat radiation front surface 42 are arranged side by side in the vehicle width direction. In the plurality of display units 70, the distances between the respective display surfaces 22 and the reflective mirrors 15 are the same and are approximately the same.

Two adjacent display units 70 are spaced apart from each other. In two adjacent display units 70, each display 20, heat insulating section 30, and heat sink section 41 are spaced apart from each other. In two adjacent display units 70, the gaps between the displays 20, the gaps between the heat insulating sections 30, and the gaps between the heat sink sections 41 are arranged in the thickness direction of the device. The display 20, the heat insulating part 30, and the heat sink part 41 all have a pair of side end parts lined up in the device width direction. In one display unit 70, the side ends of the display 20, the heat insulating section 30, and the heat sink section 41 are lined up in the thickness direction of the device.

As shown in FIG. 5, a plurality of displays 20 and display surfaces 22 are arranged in the width direction of the device. Regarding the image display device 10, mutually orthogonal directions are referred to as an X direction, a Y direction, and a Z direction, with the X direction being the width direction of the device, and the Z direction being the thickness direction of the device. The Z direction is the depth direction of the device. The device depth direction is the depth direction of the image display device 10. In the vehicle 100, the X direction is the vehicle width direction, the Z direction is the vertical direction, and the Y direction is the vehicle longitudinal direction. In addition, in FIG. 5, illustration of the heat insulating part 30, the heat sink part 41, and the hood cover 60 is omitted.

The image display device 10 is attached to an instrument panel 102 as an attachment target. As shown in FIG. 6, the visor hood 50 has a hood body 120 and connecting parts 111 to 113. The visor hood 50 is connected to the instrument panel 102 by connecting portions 111 to 113.

The hood main body 120 forms the main part of the visor hood 50, and has a horizontally long plate shape as a whole. For example, the hood main body 120 forms a hood front side 51, a hood back side 52, a hood recess 53, a hood tip 57, a hood base end 58, and a hood side end 59.

The hood distal end portion 57 and the hood proximal end portion 58 extend in the X direction as a whole. The hood side end portion 59 forms a side end portion of the image display device 10 . A pair of hood side end portions 59 are included in the visor hood 50. The pair of hood side ends 59 are arranged in the X direction. The hood side end 59 extends in the Y direction and connects the hood tip 57 and the hood base end 58. The hood side end 59 is shorter than the hood tip 57 and the hood base end 58, and corresponds to a short edge of the case. The hood distal end 57 and the hood proximal end 58 are sometimes referred to as case long edges. The hood distal end 57 corresponds to the case distal end, and the hood base end 58 corresponds to the case proximal end.

The visor hood 50 as a whole has a curved shape that bulges toward the hood tip 57 side. In the visor hood 50, the hood distal end 57 is bent so as to be concave toward the hood proximal end 58, for example, curved. The hood tip 57 has a tip apex 57a. The tip top portion 57a is located at the most recessed position in the hood tip portion 57 toward the hood base end portion 58 side. The tip apex 57a is located at an intermediate position between the pair of hood side ends 59 in the hood tip 57. The hood base end portion 58 is curved so as to swell toward the opposite side from the hood distal end portion 57, for example, is curved. The hood base end portion 58 has a base end top portion 58a. The proximal apex portion 58a is located at the most protruding position in the hood proximal end portion 58 toward the side opposite to the hood distal end portion 57. The base end apex 58 a is located at an intermediate position between the pair of hood side ends 59 in the hood base end 58 .

The hood horizontal line L1a of the visor hood 50 extends in the X direction as a whole. The hood horizontal line L1a is an imaginary center line that passes through the center of the visor hood 50 and extends in the longitudinal direction of the visor hood 50, and is curved so as to bulge in the Y direction toward the hood base end 58 side. The hood horizontal line L1a extends in the X direction so as to span the pair of hood side ends 59, and corresponds to a longitudinal curve line. The hood horizontal line L1a is bent along both the hood distal end 57 and the hood proximal end 58, and is, for example, curved. The hood horizontal line L1a passes through the side end center C1 of the hood side end portion 59. The side end center C1 is located at an intermediate position between the hood distal end portion 57 and the hood proximal end portion 58 in the hood side end portion 59. In the visor hood 50, the longitudinal direction is the X direction, and the lateral direction is the Y direction.

The hood vertical line L1b of the visor hood 50 extends linearly in the Y direction along the hood side end 59. The hood vertical line L1b is an imaginary center line that passes through the center of the visor hood 50 and extends in the lateral direction of the visor hood 50, and is located at an intermediate position between the pair of hood base ends 58. In the hood tip 57, there is a tip apex 57a at a position where the hood vertical line L1b passes. In the hood base end portion 58, the base end top portion 58a is located at a position where the hood vertical line L1b passes.

As shown in FIG. 2, the hood body 120 has a body base portion 121 and a body frame portion 122. The main body base portion 121 is formed into a plate shape, and the main body frame portion 122 is formed into a frame shape. The main body base portion 121 and the main body frame portion 122 are arranged side by side in a direction orthogonal to the Z direction. The main body frame portion 122 protrudes from the main body base portion 121 toward the hood front surface 51 side, thereby forming a hood recess 53. In the hood recess 53, a concave bottom surface 54 is formed by the main body base part 121, and a concave wall surface 55 is formed by the main body frame part 122. In the Z direction, the thickness of the main body frame portion 122 is greater than the thickness of the main body base portion 121. That is, the main body frame portion 122 is thicker than the main body base portion 121. In the visor hood 50, a hood back surface 52 is formed by a main body base portion 121. Further, a hood front surface 51, a hood distal end portion 57, a hood base end portion 58, and a hood side end portion 59 are formed by the main body frame portion 122.

As shown in FIG. 5, the visor hood 50 is bent in the Z direction so as to bulge upward so that the upper end is between the pair of hood side ends 59, and is, for example, curved. Specifically, the main body base portion 121 of the visor hood 50 is curved in the Z direction so as to bulge upward. The main body base portion 121 is curved so as to be convex upward, and has an arch shape or a circular arc shape. The curvature of the main body base portion 121 is uniform in the X direction. The main body base portion 121 has a gentle arch. The radius of curvature of the main body base portion 121 is larger than the length dimension of the main body base portion 121 in the X direction, for example.

The hood horizontal line L1a passes through the center of the main body base portion 121 and extends in the X direction. The hood horizontal line L1a is bent in the Z direction so as to bulge upward, and is, for example, curved. The curvature of the hood horizontal line L1a is uniform in the X direction. The radius of curvature of the hood horizontal line L1a is larger than the length of the main body base portion 121 in the X direction, for example. Both the hood back surface 52 and the concave bottom surface 54 are curved along the hood horizontal line L1a. The hood horizontal line L1a corresponds to an upward curve line.

In the main body base portion 121 and the hood horizontal line L1a, the portion through which the hood up and down line L1c (see FIG. 7) passes is the upper end portion. The hood vertical line L1c is an imaginary center line that passes through the center of the main body base portion 121 and extends in the Z direction, and is located at an intermediate position between the pair of hood base end portions 58. In the main body base portion 121 and the hood horizontal line L1a, the upper end portion is located at the uppermost position in the Z direction, and the lower end portion is located at the lowermost position in the Z direction. The upper end portion of the main body base portion 121 includes a distal apex portion 57a and a proximal apex portion 58a. In the main body base portion 121, the distal apex portion 57a and the proximal apex portion 58a correspond to the upper end portion.

In FIG. 6, connecting portions 111 to 113 connect the hood main body 120 to the back portion 102b and side portion 102c of the instrument panel 102. As shown in FIG. The connecting portions 111 to 113 hold the hood main body 120 in position with respect to the instrument panel 102. The connecting portions 111 to 113 are portions provided with receiving portions for receiving fasteners or engaging portions. The connecting portions 111 to 113 each have, for example, an ear portion that protrudes laterally from the hood body 120 in a direction perpendicular to the Z direction, and a receiving portion provided on the ear portion. The fasteners are fixing tools such as bolts, and fasten the visor hood 50 and the instrument panel 102 by being inserted into the receiving parts of the connecting parts 111 to 113. The engaging portion is a portion such as a clip provided on the instrument panel 102, and is a protrusion that is pulled into and engaged with the receiving portion. The receiver is a hole or recess into which the fastener or engagement part is inserted, and is located, for example, in the center of the ear. In this embodiment, the positions of the connecting parts 111 to 113 are the positions where the visor hood 50 and the instrument panel 102 are connected. Connections 111-113 are sometimes referred to as retention fasteners.

The connecting portions 111 to 113 are arranged along the outer peripheral edge of the hood body 120. Among the connecting parts 111 to 113, the outer connecting part 111 and the inner connecting part 112 connect the hood base end part 58 to the inner part 102b, and correspond to the base end connecting parts. A plurality of the outer connecting portions 111 and the inner connecting portions 112 are arranged along the hood base end portion 58. The outer connecting portion 111 and the inner connecting portion 112 protrude from the hood main body 120 toward the side opposite to the hood tip 57.

The outer connecting portion 111 is provided outside the inner connecting portion 112 in the X direction. That is, the outer connecting portion 111 is provided at a position closer to the hood side end portion 59 than the inner connecting portion 112 is. The outer connecting portion 111 is provided for each of the pair of hood side ends 59. The pair of external connecting portions 111 are arranged along the hood base end portion 58. Each of the pair of external connecting portions 111 is located at a position spaced apart from the hood side end portion 59 toward the hood vertical line L1b side. The outer connecting portion 111 is located closer to the hood side end portion 59 than the hood vertical line L1b in the X direction. The outer connecting portion 111 corresponds to a base connecting portion and is sometimes referred to as a main holding fastening portion.

A plurality of inner connecting portions 112 are provided between the pair of outer connecting portions 111 in the X direction. These internal connecting portions 112 are arranged along the hood base end portion 58. Each of the plurality of inner connecting portions 112 is provided on the side opposite to the hood tip portion 57 than the outer connecting portion 111 in the Y direction. The inner connecting portion 112 is located at a position shifted from the outer connecting portion 111 in the Y direction. The inner connecting portion 112 corresponds to a displacement connecting portion and is sometimes referred to as a sub-holding and fastening portion.

The plurality of inner connecting portions 112 include an intermediate connecting portion 112a. The intermediate connecting portion 112a is an inner connecting portion 112 arranged at a position where the hood vertical line L1b passes. The intermediate connecting portion 112a is disposed at an intermediate position between the pair of hood side ends 59 in the hood base end portion 58. The intermediate connecting portion 112a is located on the opposite side of the hood tip 57 among the plurality of inner connecting portions 112. Note that even if the intermediate connecting portion 112a is slightly shifted in the X direction from the intermediate position between the pair of hood side ends 59, it is sufficient that the hood vertical line L1b is located at a position where the hood vertical line L1b passes through a part of the intermediate connecting portion 112a.

The outer connecting portion 111 is arranged closer to the hood tip portion 57 than the intermediate connecting portion 112a in the Y direction. In the Y direction, the outer connecting portion 111 is located closer to the distal apex 57a than the proximal apex 58a. In the Y direction, the distance Db between the outer connecting portion 111 and the top end 57a is smaller than the distance Da between the intermediate connecting portion 112a and the top end 57a.

Among the connecting portions 111 to 113, the front connecting portion 113 connects the hood side end portion 59 to the side portion 102c. One front connecting portion 113 is provided on each of the pair of hood side ends 59. The front connecting portion 113 projects laterally from the hood side end portion 59. The front connecting portion 113 corresponds to a short edge connecting portion, and is sometimes referred to as a left and right end fastening portion.

The front connecting portion 113 is provided at a position spaced apart from the hood base end portion 58 toward the hood distal end portion 57 side at the hood side end portion 59 . The front connecting portion 113 is located between the hood distal end portion 57 and the hood proximal end portion 58, and is spaced apart from both the hood distal end portion 57 and the hood proximal end portion 58. The front connecting portion 113 is located, for example, at an intermediate position between the hood distal end portion 57 and the hood proximal end portion 58 at the hood side end portion 59 . The intermediate position for the front connecting portion 113 is a position where the front connecting portion 113 straddles the side end center C1 in the Y direction. This intermediate position is a position where the hood horizontal line L1a passes through a part of the front connecting portion 113. In the Y direction, the front connecting portion 113 is located closer to the hood distal end portion 57 than the hood base end portion 58.

In this embodiment, the positions of the connecting parts 111 to 113 are set at the respective centers. For example, the outer connecting portion 111 and the inner connecting portion 112 may be located at a position that protrudes outward from the hood base end portion 58 in the Y direction, or may be located at a position that extends inward from the hood base end portion 58. good. The front connecting portion 113 may be located at a position that protrudes outward from the hood side end portion 59 in the X direction, or may be located at a position that extends inward from the hood side end portion 59.

The plurality of displays 20 are arranged along the hood horizontal line L1a. These displays 20 are lined up along both the hood distal end 57 and the hood proximal end 58. The display 20 extends in the direction in which the hood horizontal line L1a extends. One of the two adjacent displays 20 is inclined with respect to the other. When two adjacent displays 20 are referred to as one set, the relative inclination angle of one of the two adjacent displays 20 to the other is the same for each of the plurality of sets. For example, in the plurality of displays 20, when viewed sequentially from the display 20 at one end in the X direction, the relative inclination angles are all the same, for example, 10 degrees at a time.

In a plan view of the hood rear surface 52 in the Z direction, the plurality of displays 20 are arranged along the hood horizontal line L1a such that the displays 20 at both ends are disposed closest to the hood tip 57 side. In the plurality of displays 20, each display horizontal line L2a extends in the X direction as a whole. The display horizontal line L2a extends linearly along the hood horizontal line L1a. The display horizontal line L2a is a virtual center line that passes through the center of the display 20 and extends along the long sides of the display front surface 21. Of the two adjacent displays 20, one display horizontal line L2a is inclined with respect to the other display horizontal line L2a.

The display vertical line L2b of the display 20 extends linearly in the Y direction, similarly to the hood vertical line L1b. The display vertical line L2b is a virtual center line that passes through the center of the display 20 and extends along the short side of the display front surface 21. In two adjacent displays 20, respective display vertical lines L2b extend parallel to each other. The plurality of displays 20 includes a display 20 arranged at the center of the visor hood 50 in the Y direction. The display vertical line L2b of this display 20 corresponds to the hood vertical line L1b. The display vertical line L2b corresponds to the display center line.

Proximal connecting portions such as the outer connecting portion 111 and the inner connecting portion 112 are provided individually for each of the plurality of displays 20 . The outer connecting portion 111 and the inner connecting portion 112 are arranged at a position in the hood base end portion 58 where the display vertical line L2b passes. A center line extending in the Y direction through the centers of the outer connecting portion 111 and the inner connecting portion 112 coincides with the display vertical line L2b. In the hood base end portion 58, one of the outer connecting portion 111 and the inner connecting portion 112 is arranged at a position where each of the plurality of display vertical lines L2b passes.

The plurality of displays 20 are arranged along the hood horizontal line L1a such that the displays 20 at both ends in the Y direction are arranged lowest. The plurality of displays 20 are arranged so as to have an upwardly bulging shape as a whole. All of these displays 20 are connected to each other via a heat insulating section 30, a heat sink section 41, and a visor hood 50. That is, the plurality of displays 20 are indirectly connected to each other.

As shown in FIGS. 2 and 6, the image display device 10 includes a reinforcing member 90. The reinforcing member 90 reinforces the visor hood 50 and corresponds to a reinforcing portion. The reinforcing member 90 has electrical conductivity. The electrical conductivity of the reinforcing member 90 is higher than that of the visor hood 50. The reinforcing member 90 has higher bending rigidity than the visor hood 50. The reinforcing member 90 has a higher elastic modulus than the visor hood 50 and is less likely to deform than the visor hood 50. For example, the visor hood 50 is made of a material with a high elastic modulus. The reinforcing member 90 has higher strength than the visor hood 50. The reinforcing member 90 only needs to have at least one of strength and bending rigidity higher than that of the visor hood 50.

The material forming the reinforcing member 90 has at least one of higher strength and modulus of elasticity than the material forming the visor hood 50. Materials forming the reinforcing member 90 include SUS, AL, CFRP, and the like. SUS is stainless steel, AL is aluminum, and CFRP is carbon fiber reinforced plastic.

The reinforcing member 90 is embedded in the visor hood 50 and is built into the visor hood 50. The reinforcing member 90 is provided between the hood tip 57 and the display 20 in the Y direction. The reinforcing member 90 is provided between the hood tip 57 and the hood recess 53 in the Y direction. The reinforcing member 90 is located apart from both the hood tip 57 and the concave wall surface 55. The reinforcing member 90 is provided between the hood front surface 51 and the hood back surface 52 in the Z direction. The reinforcing member 90 is located apart from both the hood front 51 and the hood back 52.

The reinforcing member 90 is provided at a position closer to the hood tip 57 than the display 20. In the Y direction, the distance between the reinforcing member 90 and the hood tip 57 is smaller than the distance between the reinforcing member 90 and the display 20. The reinforcing member 90 is located closer to the hood tip 57 than the concave wall surface 55. In the Y direction, the distance between the reinforcing member 90 and the hood tip 57 is smaller than the distance between the reinforcing member 90 and the concave wall surface 55.

The reinforcing member 90 is, for example, an elongated member in the shape of a round bar, and extends in the X direction along the hood tip 57. The reinforcing member 90 has a shape that matches the shape of the hood tip 57. The reinforcing member 90 is bent so as to swell toward the hood base end 58 side in the Y direction, and is, for example, curved. The reinforcing member 90 is bent so as to bulge upward in the Z direction, and is, for example, curved.

The reinforcing member 90 has a reinforcing intermediate portion 91 and a reinforcing end portion 92. The reinforcing member 90 has a pair of ends, and these ends are reinforcing ends 92 . The reinforcing intermediate portion 91 is located at an intermediate position between the pair of reinforcing end portions 92 and includes the center of the reinforcing member 90. In the reinforcing member 90, the reinforcing intermediate portion 91 is located closest to the hood base end portion 58, and the reinforcing end portion 92 is located closest to the hood distal end portion 57 side in the Y direction. In the reinforcing member 90, the reinforcing intermediate portion 91 is located at the uppermost position, and the reinforcing end portion 92 is located at the lowermost position in the Z direction.

The reinforcing member 90 extends along the hood tip 57 and between the pair of hood side ends 59 . The reinforcing member 90 is provided over the entire hood tip 57 and is arranged in a beam shape in the visor hood 50. The reinforcing end 92 is located at a distance from the hood side end 59 and is not exposed to the outside from the hood side end 59. The reinforcing intermediate portion 91 is arranged in the visor hood 50 at a position where the hood vertical line L1b passes. The reinforcing member 90 is longer than 1/2 of the hood tip 57 and shorter than the hood tip 57. In the X direction, the length L1 of the reinforcing member 90 is smaller than the length L2 of the hood tip 57. On the other hand, the length dimension L1 is larger than 1/2 of the length dimension L2.

The reinforcing member 90 is in a state where it is extended over the plurality of displays 20. The reinforcing member 90 extends between two adjacent displays 20. In the X direction, the reinforcing end 92 is between the display 20 and the hood side end 59. The reinforcing member 90 is located between the hood recess 53 and the hood side end 59 in the X direction. The reinforcing member 90 extends further toward the hood side end 59 from the display 20 located closest to the hood side end 59 among the plurality of displays 20 .

According to the embodiment described so far, the reinforcing member 90 extends along the hood tip 57 in the visor hood 50 . With this configuration, for example, when an external force is applied to the hood tip 57, this external force is easily dispersed throughout the reinforcing member 90. Therefore, the reinforcing member 90 can suppress local deformation of the hood tip 57. Therefore, it is possible to prevent the visor hood 50 from deforming locally and stress to concentrate on the display 20, thereby preventing abnormalities from occurring in the display 20.

Regarding the image display device 10, unlike this embodiment, the housing case such as the visor hood 50 may be formed of a metal material. For example, in response to the growing need for thinner designs for notebook computers, smartphones, tablets, car displays, etc., cases are sometimes made of light metals such as aluminum and magnesium. This makes it possible to reduce the weight of the product and create a product with good design. However, if a metal housing case is used, there may be disadvantages such as increased weight, increased difficulty in manufacturing parts, and increased cost. For example, when manufacturing parts, the difficulty level of molding, mold processing, etc. may increase. For mold processing, special molds and techniques may be required.

As a solution to these inconveniences, a housing case reinforced by dispersing glass fibers in PBT resin is sometimes used. In addition, a case made of reinforced PPS resin or nylon resin with carbon fiber dispersed therein is sometimes used. PBT resin, PPS resin, and nylon resin are lighter than metal, have good processability and moldability, and are inexpensive. For example, it is conceivable that parts manufacturing will become easier. Regarding mold processing, it becomes possible to use general molds and techniques. PBT resin is polybutylene terephthalate resin, and PPS resin is polyphenylene sulfide resin.

However, even if the resin is reinforced in this way, the strength of the housing case tends to be reduced to 1/2 to 1/10 of that of metal. Therefore, if the occupant carelessly touches or grips the housing case, local deformation of the housing case easily occurs. In other words, when a housing case is made of resin to reduce weight and cost, the strength and rigidity tend to be lower than that of metal. It is thought that reducing the weight of the housing case will help reduce vehicle weight and improve fuel efficiency. To deal with this, a possible countermeasure is to slightly relax the thin design of the housing case so that the flexure of the housing case is reduced. Countermeasures for this include increasing the case plate thickness and deepening the cross-sectional shape of the housing case to increase bending rigidity. However, this measure sacrifices the thin design of the housing case, resulting in a decrease in design quality.

In contrast, according to the present embodiment, the reinforcing member 90 extends along the hood tip 57. In this configuration, the reinforcing member 90 having high strength and elastic modulus is arranged in a beam shape on the long side and the tip of the housing case where sufficient support points cannot be provided. Therefore, the bending rigidity and strength of the housing case can be improved. Further, when the X direction is referred to as the wide direction, the reinforcing member 90 is arranged not locally in the wide direction but over the entire housing case. Therefore, the load on the housing case is transmitted and dispersed over a wide range through the reinforcing member 90. Therefore, for example, unlike a structure in which the reinforcing member 90 is not provided in the housing case and is made of only resin, local stress concentration near the load point, occurrence of deformation, and occurrence of deflection can be reduced. As a result, instruments and displays with wide display screens and casings can be made lightweight with a resin base, and can also be thin and have high strength and rigidity.

For example, as shown in FIG. 7, when an external force is locally applied to the hood tip 57 by an occupant pushing the hood tip 57 from above, even if the visor hood 50 deforms, the hood tip 57 It is sufficient that the reinforcing member 90 is bent gently as a whole. This is because the portion of the visor hood 50 near the hood tip 57 is reinforced by the reinforcing member 90, making it difficult for the visor hood 50 to deform in the thickness direction. Further, since the elastic modulus of the reinforcing member 90 is higher than that of the visor hood 50, the reinforcing member 90 is prevented from deforming to the extent that an abnormality such as plastic deformation occurs in the visor hood 50.

Regarding the image display device 10, for example, a comparative example 10x different from this embodiment is assumed. As shown in FIG. 8, in Comparative Example 10x, the reinforcing member 90 is not provided for the visor hood 50. In Comparative Example 10x, when an external force is locally applied to the hood tip 57, it is conceivable that the portion of the hood tip 57 to which the external force is applied locally bends significantly downward. In this way, if the hood tip 57 deforms so as to locally bend in the thickness direction of the visor hood 50, there is a concern that an abnormality may occur in the display 20 due to this deformation.

According to this embodiment, the visor hood 50 is attached to the instrument panel 102 while the image display device 10 is mounted on the vehicle. In the vehicle interior 101, the visor hood 50 is considered to be placed in a position within the reach of the occupant. Therefore, reinforcing the hood tip 57 with the reinforcing member 90 is effective in protecting the image display device 10 from being touched or touched by the occupant.

According to this embodiment, the reinforcing member 90 has a length dimension of 1/2 or more of the hood tip 57 and is shorter than the hood tip 57. With this configuration, the reinforcing member 90 suppresses local deformation of the hood tip 57 over a wide range of the visor hood 50, and the reinforcing member 90 suppresses deterioration in the design of the visor hood 50. can be realized.

According to this embodiment, the reinforcing member 90 is in a state where it is stretched across the pair of hood side ends 59. With this configuration, local deformation of the hood tip 57 can be suppressed by the reinforcing member 90 for the entire visor hood 50 in the X direction. Therefore, local deformation of the visor hood 50 is less likely to occur even if, for example, the occupant applies an external force by touching any part of the hood tip 57.

According to this embodiment, the reinforcing member 90 is in a state where it spans between two adjacent displays 20. With this configuration, the reinforcing member 90 can prevent the portion of the visor hood 50 between two adjacent displays 20 from deforming locally.

According to this embodiment, the reinforcing member 90 is provided between the hood tip 57 and the display 20. With this configuration, the reinforcing member 90 can suppress local deformation of the display 20 together with the hood tip 57. Even if an external force large enough to locally deform the hood tip 57 is applied to the hood tip 57, the reinforcement between the hood tip 57 and the display 20 will prevent that external force from being transmitted to the display 20. This can be controlled by the member 90.

For example, unlike this embodiment, a configuration is assumed in which the display 20 extends closer to the hood tip 57 than the reinforcing member 90 in the Y direction. With this configuration, it is difficult for the reinforcing member 90 to restrict the external force applied to the hood tip 57 from being transmitted to the display 20 . Therefore, there is a concern that abnormalities may occur in the display 20 along with local deformation of the hood tip 57.

Further, since the reinforcing member 90 is provided between the hood tip 57 and the display 20, it is not necessary to arrange the reinforcing member 90 at a position overlapping the display 20 in the Z direction. Therefore, it is possible to prevent the visor hood 50 from becoming thicker by the amount of the reinforcing member 90 in the Z direction. Therefore, the image display device 10 can be made thinner.

In particular, the reinforcing member 90 is provided between the hood tip 57 and the display 20 at a position closer to the hood tip 57 than the display 20. In this configuration, the reinforcing member 90 is placed as close to the hood tip 57 as possible. Therefore, even if the hood tip 57 is deformed by an external force, the portion of the visor hood 50 that deforms together with the hood tip 57 can be minimized. In other words, the range in which the deformation of the visor hood 50 can be suppressed by the reinforcing member 90 in the Y direction can be made as large as possible.

According to this embodiment, the reinforcing member 90 has higher conductivity than the visor hood 50. With this configuration, when the electric charge charged on the visor hood 50 is discharged to the outside, this electric charge easily passes through the reinforcing member 90. Therefore, it is possible to prevent abnormalities from occurring in the image display device 10 due to this charge. For example, when the occupant touches the visor hood 50, the electric charge on the visor hood 50 tends to flow through the reinforcing member 90 as static electricity. Therefore, the display 20, the circuit board 71, and the connection cable 72 can be protected by the reinforcing member 90 actively absorbing static electricity. In other words, the reinforcing member 90 can be given the function of protecting the display, wiring, board, etc. inside the housing case.

<Constitution group B>
According to this embodiment, in the virtual image display device 11, the plurality of display surfaces 22 are arranged along the reflective surface 16 with the display surfaces 22 facing the reflective surface 16. In this configuration, the images V displayed on each of the plurality of display surfaces 22 are displayed by the reflective surface 16 as a plurality of virtual images Vi. Therefore, it becomes possible for the occupant to visually recognize the plurality of virtual images Vi all at once on one reflective surface 16. Since the reflective surface 16 is the visible surface Sv for the occupant, it is possible to increase the size of the visible surface Sv in the virtual image display device 11.

Furthermore, on the reflective surface 16, the virtual image Vi displayed by the image light is more conspicuous than the virtual image V23 in which only the frame surface 23 is reflected. For this reason, it is possible to reduce the conspicuousness of the virtual image gap area on one viewing surface Sv on which a plurality of virtual images Vi are displayed. The virtual image gap area is an area indicating a gap between adjacent virtual images Vi. Therefore, when the occupant visually recognizes the viewing surface Sv, it is possible to prevent the occupant from feeling uncomfortable about the virtual image gap area. In other words, it is possible to enhance the seamlessness of the plurality of virtual images Vi visually recognized by the viewing surface Sv.

Furthermore, since a self-luminous display unit is employed as the display 20, leakage of backlight light from black portions of the image V is avoided. For example, on the display front surface 21, leakage of backlight light at the boundary between the outer peripheral edge of the display surface 22 and the inner peripheral edge of the frame surface 23 can be avoided. For this reason, it is possible to suppress the frame surface 23 from becoming conspicuous due to the light of the backlight in the virtual image gap region. Therefore, the seamless feeling on the viewing surface Sv can also be enhanced by preventing light leakage from the backlight.

According to this embodiment, a plurality of displays 20 are arranged in the width direction of the device. With this configuration, in two adjacent displays 20, it is possible to avoid that the image light emitted from one display 20 is blocked by the other display 20. Therefore, it is possible to avoid the virtual image gap region becoming conspicuous due to the image light being blocked.

In this embodiment, since there is a gap between two adjacent displays 20, a virtual image that reflects this gap is included in the virtual image gap area on the viewing surface Sv. Further, since the virtual image Vi is displayed by image light, the virtual image in the gap is not easily noticeable in the virtual image gap area, similarly to the virtual image Vi in the frame surface 23. As a result, even if a gap is secured between two adjacent displays 20 by prioritizing the ease of attaching and detaching the displays 20, it is possible to prevent the occupants from feeling uncomfortable with the virtual image that reflects this gap. can.

According to this embodiment, the respective frame surfaces 23 of the plurality of displays 20 have similar colors. With this configuration, the degree to which the virtual image V23 on the frame surface 23 is inconspicuous can be made uniform for the plurality of displays 20. Therefore, when a plurality of virtual images V23 are displayed on the viewing surface Sv on the frame surface 23, it is possible to suppress that only some of the virtual images V23 stand out.

According to the present embodiment, the visor hood 50 that covers the display back surface 24 extends across the plurality of displays 20. Therefore, the visor hood 50 can prevent the plurality of displays 20 from being misaligned. For example, the visor hood 50 can prevent two adjacent display surfaces 22 from shifting relative to each other and positioning the two virtual images Vi displayed by these display surfaces 22 from shifting.

According to this embodiment, in the vehicle 100, the visor hood 50 spans the pair of A-pillars 108. With this configuration, the portion of the visor hood 50 fixed to the instrument panel 102 can be placed as close to the A-pillar 108 as possible. Therefore, the support strength of the visor hood 50 by the instrument panel 102 can be increased. Further, with this configuration, the visor hood 50 can be made as large as possible in the vehicle width direction in the vehicle interior 101. Therefore, the number of image display devices 10 accommodated in the visor hood 50 can be increased. Furthermore, by increasing the size of the reflective mirror 15 in accordance with the number of image display devices 10, the viewing surface Sv, which is the reflective surface 16, can be increased in size.

According to this embodiment, the visor hood 50 is a member attached to the instrument panel 102. Therefore, it is possible to prevent the design of the vehicle interior 101 from being degraded by the visor hood 50. Therefore, the design of the vehicle interior 101 can be improved by the visor hood 50. In particular, in a configuration in which the visor hood 50 is also increased in size as the viewing surface Sv is increased in size, the visor hood 50 is likely to be noticeable in the vehicle interior 101. Therefore, it is effective to enhance the design of the vehicle interior 101 by using the visor hood 50.

<Modification 1>
The reinforcing member 90 may extend along both the hood tip 57 and the hood side end 59. In the first modification, for example, in the first embodiment, the reinforcing member 90 has a bent shape as shown in FIG. 9 . This bent portion is located closer to the reinforcing end portion 92 than the reinforcing intermediate portion 91.

The reinforcing member 90 has a horizontally extending portion 93 and a vertically extending portion 94. The horizontally extending portion 93 extends in the X direction along the hood tip 57. The longitudinally extending portion 94 extends in the Y direction along the hood side end portion 59. In the reinforcing member 90, a boundary portion between the horizontally extending portion 93 and the vertically extending portion 94 is curved so as to swell toward the hood tip portion 57 side. The horizontally extending portion 93 is provided between the hood tip portion 57 and the hood recess 53 in the Y direction. The longitudinally extending portion 94 is provided between the hood side end portion 59 and the hood recess 53 in the X direction. The longitudinally extending portion 94 forms a reinforcing end portion 92 . The reinforcing end portion 92 is provided between the hood tip portion 57 and the hood horizontal line L1a in the Y direction.

The reinforcing end portion 92 is located closer to the hood horizontal line L1a than the hood tip portion 57 in the Y direction. Note that the reinforcing end portion 92 may be located closer to the hood distal end portion 57 than the hood horizontal line L1a in the Y direction, or may be located closer to the hood base end portion 58 than the hood horizontal line L1a. In other words, it is sufficient that the longitudinally extending portion 94 extends along the hood side end portion 59. For example, the horizontally extending portion 93 and the vertically extending portion 94 may be arranged at positions separated from each other without being connected.

The reinforcing member 90 is connected to the front connecting portion 113. The reinforcing member 90 is connected, for example, to the ear portion of the front connecting portion 113. As long as the reinforcing member 90 is connected to the front connecting portion 113, it may be connected to a receiving portion, a fastener, or an engaging portion of the front connecting portion 113. That is, it is sufficient that the load is transmitted from the reinforcing member 90 to the instrument panel 102 via the front connecting portion 113. Further, as long as the structure is such that the load is transmitted from the reinforcing member 90 to the front connecting portion 113, the reinforcing member 90 and the front connecting portion 113 do not need to be directly connected. For example, the reinforcing member 90 may be disposed near the front connecting portion 113.

The front connecting portion 113 is connected to a vehicle body such as a vehicle body frame in the vehicle 100. The reinforcing member 90 is electrically connected to the vehicle body via the front connecting portion 113. The reinforcing member 90 is electrically connected to the ground via the front connecting portion 113 and is in a grounded state. Therefore, even if an electric charge is applied to the visor hood 50, this electric charge is discharged to the ground via the vehicle body. Therefore, it is possible to prevent abnormalities from occurring in the image display device 10 due to static electricity.

According to this modification, the reinforcing member 90 is connected to the front connecting portion 113. With this configuration, when an external force is applied to the hood tip 57, this external force is easily transmitted from the reinforcing member 90 to the instrument panel 102 via the front connecting portion 113. That is, it is possible to disperse the load applied to the reinforcing member 90 from the front connecting portion 113 to the instrument panel 102. Therefore, deformation of the visor hood 50 can be suppressed by dispersing force to the instrument panel 102.

A plurality of short edge connecting portions such as the front connecting portion 113 may be provided at the hood side end portion 59. In Modification 1, the visor hood 50 has a rear connecting portion 114 as short edge connecting portions in addition to the front connecting portion 113. Both the front connecting portion 113 and the back connecting portion 114 are provided at each of the pair of hood side ends 59. The rear connecting portion 114 is provided between the front connecting portion 113 and the hood base end portion 58. The front connecting portion 113 corresponds to a first connecting portion, and the back connecting portion 114 corresponds to a second connecting portion.

Like the front connecting portion 113, the rear connecting portion 114 connects the hood side end portion 59 to the side portion 102c. The inner connecting portion 114 has the same configuration as the connecting portions 111 to 113, such as having an ear portion and a receiving portion. One inner connecting portion 114 is provided on each of the pair of hood side ends 59. The inner connecting portion 114 projects laterally from the hood side end portion 59. The rear connecting portion 114 corresponds to a short edge connecting portion like the front connecting portion 113, and is sometimes referred to as a left and right end fastening portion. Since the outer connecting portion 111 is located away from the hood side end 59 toward the hood vertical line L1b, the inner connecting portion 114 is located away from the outer connecting portion 111 toward the hood side end 59.

The rear connecting portion 114 is provided on the back side of the front connecting portion 113 at the hood side end portion 59, and is located at the hood base end portion 58 at the hood side end portion 59. The inner connecting portion 114 extends from the hood base end 58 toward the hood distal end 57 side. The inner connecting portion 114 is located at a position spaced from the side end center C1 of the hood side end portion 59 toward the hood base end portion 58 side. Note that the inner connecting portion 114 may be provided at a position spaced apart from the hood base end portion 58 toward the hood distal end portion 57 side. Further, the inner connecting portion 114 may be provided at a position straddling the hood base end portion 58 in the Y direction. In short, it is sufficient that the rear connecting portion 114 is provided closer to the hood base end portion 58 than the front connecting portion 113 in the hood side end portion 59 .

The front connecting portion 113 is provided on the front side of the rear connecting portion 114 and is located at the hood tip portion 57 at the hood side end portion 59 . The front connecting portion 113 extends from the hood distal end portion 57 toward the hood proximal end portion 58 side. The front connecting portion 113 is located in the hood side end portion 59 at a position spaced apart from the side end center C1 toward the hood tip portion 57 side. Note that the front connecting portion 113 may be provided at a position spaced apart from the hood distal end portion 57 toward the hood proximal end portion 58 side, as in the first embodiment. Further, the front connecting portion 113 may be provided at a position straddling the hood tip portion 57 in the Y direction. In short, it is sufficient that the front connecting portion 113 is provided closer to the hood tip portion 57 than the rear connecting portion 114 in the hood side end portion 59 .

<Modification 2>
The reinforcing member 90 may be connected to the heat radiation section 40 in the visor hood 50. In the second modification, for example, in the first embodiment, the reinforcing member 90 is connected to the heat sink part 41, as shown in FIG. The heat sink portion 41 extends toward the hood tip portion 57 side from the concave wall surface 55 . The end of the heat sink portion 41 opposite to the heat sink fins 44 is connected to the reinforcing member 90 . The reinforcing member 90 and the heat sink portion 41 are connected by welding, a fixture, or the like. The heat dissipation plate portion 41 is formed of a metal plate with a diameter of about 1 mm, for example.

The reinforcing member 90 is electrically connected to the heat sink part 41. The heat sink portion 41 is electrically connected to the ground and is in a grounded state. Therefore, even if a charge is applied to the visor hood 50, this charge is discharged to the ground via the heat sink portion 41.

According to this modification, the reinforcing member 90 is connected to the heat sink part 41. With this configuration, when an external force is applied to the hood tip portion 57, this external force can be dispersed from the reinforcing member 90 to the heat sink portion 41. Therefore, deformation of the visor hood 50 can be suppressed by dispersing the force to the heat sink portion 41.

<Modification 3>
A plurality of reinforcing parts such as the reinforcing member 90 may be provided in the visor hood 50. In modification 3, for example, in the first embodiment, as shown in FIG. 11, a reinforcing member 96 is provided in the visor hood 50 in addition to the reinforcing member 90. In this modification, the reinforcing member 90 is called a first reinforcing member 90, and the reinforcing member 96 is called a second reinforcing member 96. The second reinforcing member 96 has a structure similar to that of the first reinforcing member 90, such as having higher strength than the visor hood 50. The second reinforcing member 96 reinforces the visor hood 50 similarly to the first reinforcing member 90, and corresponds to a reinforcing portion.

The second reinforcing member 96 is embedded in the visor hood 50 similarly to the first reinforcing member 90, and is in a built-in state. The second reinforcing member 96 is located away from the first reinforcing member 90 toward the hood base end portion 58 side. For example, the second reinforcing member 96 is located at an intermediate position between the hood distal end 57 and the hood base end 58 in the Y direction, or at a position closer to the hood distal end 57 than the hood base end 58 . The second reinforcing member 96 is arranged at a position overlapping the display 20 in the Z direction. For example, the second reinforcing member 96 is provided between the hood back surface 52 and the concave bottom surface 54 in the Z direction.

The second reinforcing member 96 is, for example, a plate-like elongated member and extends in the X direction. In the second reinforcing member 96, one plate surface faces the display back surface 24. The second reinforcing member 96 is in a state where it spans the pair of hood side ends 59. For example, the second reinforcing member 96 has approximately the same length as the first reinforcing member 90 in the X direction. Note that a plurality of second reinforcing members 96 may be provided. For example, the plurality of second reinforcing members 96 may be arranged in at least one of the X direction, the Y direction, and the Z direction.

<Modification 4>
The reinforcing member 90 may be exposed to the outside from the visor hood 50. In the fourth modification, for example, in the first embodiment, a reinforcing member 90 is provided at the hood tip 57 on the outside of the visor hood 50, as shown in FIG. The reinforcing member 90 is not embedded in the visor hood 50, but is fixed to the hood tip 57 with adhesive, screws, or the like. The reinforcing member 90 is arranged as a design member such as a decorative molding, and improves the design of the visor hood 50.

<Second embodiment>
In the first embodiment, the reflective surface 16 is arranged so as to be visually recognized by the viewer as the viewing surface Sv. On the other hand, in the second embodiment, the cover front surface 61 is arranged so as to be visually recognized by the viewer as the viewing surface Sv. Configurations, operations, and effects that are not particularly described in the second embodiment are the same as those in the first embodiment. The second embodiment will be explained mainly on points different from the first embodiment.

In the vehicle 100 shown in FIG. 13, the occupant can visually recognize the image V instead of the virtual image Vi on the viewing surface Sv. The vehicle 100 is not equipped with a reflective mirror 15, and the image display device 10 does not constitute a virtual image display device 11.

The image display device 10 shown in FIGS. 13 to 16 is installed so that the front surface 61 of the cover is visible. The cover front surface 61 faces obliquely upward so as to face the seat side. The front cover 61 is easily visible to the occupant sitting in the seat. In this embodiment, the cover front surface 61 is the visible surface Sv that is visually recognized by the occupant. The occupant can visually recognize the image V by viewing the cover front surface 61, which is the viewing surface Sv. The image light emitted from the display surface 22 passes through the hood cover 60 and proceeds toward the seat side. The occupant does not view the display screen 22 indirectly as in the first embodiment, but directly views the display screen 22 through the hood cover 60. In addition, in FIG. 15, illustration of the hood front surface 51 is omitted. In this embodiment, the device thickness direction is the direction extending from the front to the rear of the vehicle 100.

The image display device 10 is provided on the instrument panel 102 with the front cover 61 and the back hood 52 exposed to the vehicle interior 101. The image display device 10 extends upward from the instrument panel 102. The image display device 10 is in a state of being inserted between the front portion 102a and the back portion 102b. The lower end of the image display device 10 is inserted into the back side of the instrument panel 102 and is a base end fixed to the instrument panel 102. The upper end of the image display device 10 is a tip located above the inner portion 102b. The cover front surface 61 extends in the vertical direction or in a direction slightly inclined with respect to the vertical direction.

The image display device 10 is provided below the front windshield 106. The display surface 22 and the cover front surface 61 face in a different direction from the front windshield 106. When sunlight passes through the front windshield 106 and enters the vehicle interior 101, this sunlight tends to hit the hood back 52, but is less likely to hit the display surface 22 and the cover front 61.

As shown in FIG. 14, in the visor hood 50, the hood tip 57 forms the upper end of the image display device 10, and the hood base end 58 forms the lower end of the image display device 10. The visor hood 50 is fixed to the instrument panel 102 with the hood base end 58 disposed below the front portion 102a and the rear portion 102b.

In the heat dissipation section 40, the heat dissipation fins 44 are covered by the instrument panel 102 from above. For example, the heat dissipation fins 44 are arranged below the deep portion 102b and are covered from above by the deep portion 102b. In the vehicle interior 101 , the instrument panel 102 blocks sunlight from irradiating the radiation fins 44 . Note that the position of the radiation fins 44 does not have to be a position away from the hood recess 53 toward the hood base end 58 side.

The image display device 10 is attached to an instrument panel 102 as an attachment target, similarly to the first embodiment. For example, the visor hood 50 is connected to the instrument panel 102 by a proximal connecting portion. The base end connecting portion has the same configuration as the outer connecting portion 111 and the inner connecting portion 112 of the first embodiment, and connects the hood base end portion 58 to the instrument panel 102. In this embodiment, since the visor hood 50 extends upward from the instrument panel 102, the hood side end portion 59 is not connected to the instrument panel 102. In this embodiment, the visor hood 50 has a proximal connection portion, but does not have a short edge connection portion.

As shown in FIGS. 14 and 16, the image display device 10 includes a reinforcing member 90 similarly to the first embodiment. Although the installation orientation of the image display device 10 is different between this embodiment and the first embodiment, the configuration of the reinforcing member 90 in the image display device 10 is the same. For example, in this embodiment, since the visor hood 50 extends upward from the instrument panel 102, the reinforcing member 90 is located below the hood tip 57.

The main differences between this embodiment and the first embodiment are that the orientations of the display surface 22 and the front cover 61 are different, and that the hood side end 59 is not connected to the instrument panel 102. It is a point. Therefore, except for these two points, the image display device 10 of this embodiment can achieve the same effects as the image display device 10 of the first embodiment.

For example, as shown in FIG. 17, when an external force is locally applied to the hood tip 57 by a passenger or the like pulling the hood tip 57 toward the driver, the hood tip 57 will bend to bulge downward. Instead, it is conceivable that the vehicle curves in such a way that it bulges toward the passenger. As described above, in this embodiment, since the orientation of the display surface 22 is different from that in the first embodiment, the direction in which the hood tip 57 tends to bend is different, but the effect obtained by the reinforcing member 90 is It's the same. Specifically, even if the visor hood 50 is deformed when an external force is locally applied to the hood tip 57, the hood tip 57 as a whole along with the reinforcing member 90 only gently bends. This is because regardless of the orientation of the display surface 22, the portion of the visor hood 50 near the hood tip 57 is reinforced by the reinforcing member 90, making it difficult for the visor hood 50 to deform in the thickness direction. .

On the other hand, a comparative example 10x in which the reinforcing member 90 is not provided to the visor hood 50 is assumed as in the first embodiment. In this comparative example 10x, when an external force is locally applied to the hood tip 57, it is considered that the portion of the hood tip 57 to which the external force is applied locally bends significantly toward the front side for the occupant. .

<Modification 5>
The reinforcing member 90 may extend along both the hood tip 57 and the hood side end 59 as in the first modification. In modification 5, for example, in the second embodiment, the reinforcing member 90 has a bending shape as shown in FIG. 19 . Although the installation orientation of the image display device 10 is different between this modification example and the above modification 1, the configuration of the reinforcing member 90 is the same. For example, in this modification, the horizontally extending portion 93 extends horizontally along the hood tip 57, and the vertically extending portion 94 extends downward from the horizontally extending portion 93. In this modification, the same effect as in the first modification can be achieved by the reinforcing member 90.

<Modification 6>
The reinforcing member 90 may be connected to the heat dissipation section 40 in the visor hood 50 as in the second modification. In modification 6, for example, in the second embodiment, the reinforcing member 90 is connected to the heat sink portion 41, as shown in FIG. Although the installation orientation of the image display device 10 is different between this modification and the modification 2 described above, the configuration of the reinforcing member 90 is the same. For example, in this modification, the heat dissipation plate portion 41 extends upward toward the hood tip 57 side rather than the concave wall surface 55. The reinforcing member 90 is connected to the upper end of the heat sink section 41 . In this modification, the same effect as in the second modification can be achieved by the reinforcing member 90.

<Modification 7>
A plurality of reinforcing parts such as the reinforcing member 90 may be provided in the visor hood 50 as in the third modification. In Modification 7, for example, in the second embodiment, as shown in FIG. 21, a second reinforcing member 96 is provided in the visor hood 50 in addition to the first reinforcing member 90. Although the present modification example and the third modification example differ in the installation orientation of the image display device 10, the configurations of the first reinforcing member 90 and the second reinforcing member 96 are the same. For example, in this modification, the first reinforcing member 90 is located above the display 20, and the second reinforcing member 96 is located on the opposite side of the display 20 from the seat. In this modification, the same effects as in the third modification can be achieved by the first reinforcing member 90 and the second reinforcing member 96.

<Modification 8>
The reinforcing member 90 may be exposed to the outside from the visor hood 50 as in the fourth modification. In modification 4, for example in the second embodiment, a reinforcing member 90 is provided at the hood tip 57 on the outside of the visor hood 50, as shown in FIG. Although the installation orientation of the image display device 10 is different between this modification example and the above modification 4, the configuration of the reinforcing member 90 is the same. For example, in this modification, the reinforcing member 90 is provided above the visor hood 50. In this modification, the same effect as in modification 4 can be achieved by the reinforcing member 90.

<Third embodiment>
In the third embodiment, correction processing is performed on the image V so that distortion does not occur in the virtual image Vi. Configurations, operations, and effects that are not particularly described in the third embodiment are the same as those in the first embodiment. The third embodiment will be described with a focus on points that are different from the first embodiment.

As shown in FIG. 23, in the virtual image display device 11, the image display device 10 and the reflection mirror 15 have a curved shape as a whole. The visor hood 50 and the reflection mirror 15 are in a state where they span the pair of A-pillars 108. The visor hood 50 and the reflective mirror 15 are curved so that their central portions bulge toward the front of the vehicle. The reflective surface 16 of the reflective mirror 15 is a flat surface or a curved surface, and is one continuous surface. The hood distal end portion 57 is curved such that the center portion of the hood distal end portion 57 in the vehicle width direction is recessed toward the hood base end portion 58 .

As shown in FIG. 24, in the image display device 10, a plurality of display units 70 are arranged along the hood tip 57. The plurality of display units 70 are arranged in the vehicle width direction. In each of the plurality of display units 70, the display 20 and the circuit board 71 are arranged in the longitudinal direction of the vehicle.

As shown in FIG. 25, in the plurality of display units 70, the respective displays 20 are arranged along the hood tip 57. As long as a plurality of displays 20 are arranged along the hood tip 57, the displays 20 may or may not be inclined with respect to the vehicle width direction. For example, among two adjacent displays 20, one display 20 may or may not be inclined relative to the other display 20. Note that illustration of the hood cover 60 is omitted in FIGS. 24 and 25.

As shown in FIG. 26, the image display device 10 includes a control section 80 and a detection section 83. The control unit 80 is electrically connected to each of the plurality of displays 20 and controls each of these displays 20 individually. The control unit 80 controls the display 20 via, for example, a driver circuit.

The control unit 80 is, for example, an ECU, and corresponds to a control device. ECU is an abbreviation for Electronic Control Unit. The control unit 80 includes a CPU 81 as an arithmetic processing device and a memory 82 as a storage device. CPU81 is a processor. The control unit 80 is mainly composed of a microcomputer including, for example, a CPU 81, a memory 82, an I/O, and a bus connecting these. The control unit 80 executes various processes related to driving the display 20 by executing a control program stored in the memory 82 . The memory 82 is a non-transitory tangible storage medium that non-temporarily stores computer-readable programs and data. Further, the non-transitional physical storage medium is realized by a semiconductor memory, a magnetic disk, or the like.

The detection section 83 is electrically connected to the control section 80. The detection unit 83 detects the brightness of the external light irradiated onto the reflective surface 16, and outputs a detection signal indicating the brightness to the control unit 80. The detection unit 83 is provided in the instrument panel 102 at a position closer to this side than the reflective surface 16 . The control unit 80 uses the detection signal from the detection unit 83 to measure the brightness of the external light irradiated onto the reflective surface 16 as external light brightness, and controls the display 20 according to this external light brightness. The control unit 80 adjusts, for example, the color, brightness, image quality, etc. of the image V according to the brightness of external light. For example, when the measured value of the external light brightness is high, such as when the reflecting surface 16 is irradiated with the setting sun or the morning sun, the control unit 80 sets the brightness or luminance of the image V to be high.

Note that the detection unit 83 may be provided at a position that detects the brightness of external light irradiated onto the display surface 22. Further, the detection unit 83 may be provided at at least one of a position for detecting the brightness of external light irradiated on the reflective surface 16 and a position for detecting the brightness of external light irradiated on the display surface 22. good. In this configuration, the control unit 80 measures at least one of the brightness of external light on the reflective surface 16 and the brightness of external light on the display surface 22, and controls the display 20 according to the measured brightness of external light. .

It is conceivable that the virtual image Vi displayed by the reflective surface 16 is distorted with respect to the image V displayed by the display surface 22. An example of a configuration in which the virtual image Vi is distorted is a configuration in which the reflective surface 16 is curved relative to the display surface 22 in the device thickness direction or the vehicle longitudinal direction.

The control unit 80 performs distortion correction processing to correct the image V so that the virtual image Vi is not distorted. As the distortion correction process, the control unit 80 performs, for example, a process of intentionally distorting the image V with respect to the display surface 22 so as to cancel the distortion of the virtual image Vi. For example, as shown in FIG. 27, the control unit 80 is configured such that the horizontal center line Lva of the image V is inclined with respect to the horizontal center line La of the display surface 22, and the vertical center line Lvb of the image V is inclined relative to the vertical center line La of the display surface 22. Distortion correction is performed so as to be inclined with respect to line Lb. In the image V and the display surface 22, horizontal center lines Lva and La extend in the horizontal direction of the display surface 22, and vertical center lines Lvb and Lb extend in the vertical direction of the display surface 22. In the image V and the display surface 22, the horizontal direction is the longitudinal direction, and the vertical direction is the transverse direction. For example, the horizontal direction of the display surface 22 is the vehicle width direction, and the vertical direction of the display surface 22 is the vehicle longitudinal direction.

When the distortion correction process is performed by the control unit 80, the distortion of the virtual image Vi is eliminated. For example, as shown in FIG. 28, when the distortion is eliminated for each of the plurality of virtual images Vi, the horizontal center lines Lva of each of these virtual images Vi become parallel to or coincide with each other, and extend in the vehicle width direction. become a state. Further, the vertical center lines Lvb of these virtual images Vi are parallel to each other or coincide with each other, and extend in the longitudinal direction of the vehicle.

For example, unlike this embodiment, if the control unit 80 does not perform distortion correction, the image V will be in a state where it is not distorted with respect to the display surface 22, as shown in FIG. In this state, the horizontal center lines Lva and La of the image V and the display surface 22 are parallel to or coincide with each other. Similarly, the respective vertical center lines Lvb and Lb are parallel to or coincide with each other. In this state where the image V is not distorted with respect to the display surface 22, the virtual image Vi is distorted with respect to both the image V and the reflective surface 16, as shown in FIG.

<Modification 9>
The reflective surface 16 may have a plurality of continuous surfaces instead of one continuous surface. In modification 9, for example in the third embodiment, as shown in FIG. 31, the reflection mirror 15 includes a center mirror 15a and a pair of side mirrors 15b and 15c. The center mirror 15a extends in the vehicle width direction and faces the seat side. The center mirror 15a is provided between a pair of side mirrors 15b, 15c, and connects these side mirrors 15b, 15c. The center mirror 15a and the side mirrors 15b, 15c are both formed into plate shapes. In the reflective mirror 15, one end in the vehicle width direction is formed by a side mirror 15b, and the other end is formed by a side mirror 15c. In the reflecting mirror 15, a side mirror 15b is fixed to one of the pair of A-pillars 108, and a side mirror 15c is fixed to the other.

The reflective surface 16 has a center surface 16a and a pair of side surfaces 16b and 16c. The center surface 16a is formed by one plate surface of the center mirror 15a, and faces the seat side. The side surfaces 16b, 16c are formed by one plate surface of the side mirrors 15b, 15c. The side surfaces 16b and 16c are both inclined with respect to the center surface 16a, and face the seat side so as to face the center surface 16a. Therefore, of the two seats lined up in the vehicle width direction, the side surface 16b near one seat can also be easily seen from the other seat. Similarly, the side surface 16c near the other seat is also easily visible from one seat.

The side surfaces 16b and 16c are bent with respect to the center surface 16a, and the bending angle is, for example, an obtuse angle. The side surfaces 16b and 16c are curved, for example, so that their central portions swell toward the seat side. In the reflective surface 16, one end in the vehicle width direction is formed by a side surface 16b, and the other end is formed by a side surface 16c.

The side surfaces 16b and 16c are capable of displaying an image V of the surroundings of the vehicle 100 as a virtual image Vi. For example, when the side surface 16b is on the right side of the driver, an image V of the right side of the vehicle is displayed on the side surface 16b as a virtual image Vi. When the side surface 16c is on the left side of the driver, an image V of the left side of the vehicle is displayed on the side surface 16c as a virtual image Vi. In this case, the side surfaces 16b and 16c correspond to electronic mirrors that function as side mirrors. Side mirrors include door mirrors and fender mirrors.

<Fourth embodiment>
In the fourth embodiment, parts of two adjacent displays 20 overlap each other in the image surface thickness direction. Configurations, operations, and effects that are not particularly described in the fourth embodiment are the same as those in the third embodiment. The fourth embodiment will be described with a focus on points that are different from the third embodiment.

In the image display device 10 shown in FIG. 32, one of the two adjacent displays 20 is placed closer to the front than the other. Among these displays 20, the display 20 placed on the front side is called a front display 20A, and the display 20 placed on the back side is called a back display 20B. Both the front display 20A and the rear display 20B extend parallel to the concave bottom surface 54 and the cover front surface 61. The plurality of displays 20 include two rear displays 20B that are adjacent to each other with a front display 20A interposed therebetween. One side end 25 of the front display 20A is located on the front side of one of the two rear displays 20B. The other side end portion 25 is located on the front side of the other of the two rear displays 20B. The side edge 25 is sometimes referred to as a display side edge 25.

A portion of the display back surface 24 of the front display 20A and a portion of the display front surface 21 of the rear display 20B are opposed to each other and overlap each other. The side end portion 25 of the front display 20A is arranged at a position overlapping the rear display 20B in the thickness direction of the device. The side end portion 25 of the front display 20A is arranged on the front side of the display front surface 21 of the rear display 20B. The front display 20A is arranged at a position where it does not block the image light emitted by the rear display 20B. For example, the side edge portion 25 of the front display 20A is placed at a position overlapping the frame surface 23 of the back display 20B, while it is placed at a position that does not overlap the display surface 22 of the back display 20B. There is.

The plurality of display units 70 include a front display unit 70A and a back display unit 70B. The front display unit 70A has a front display 20A, and the back display unit 70B has a back display 20B.

As shown in FIG. 32, in the image display device 10, a front display 20A and a rear display 20B are provided with their respective display surfaces 22 facing downward. A side end portion 25 of the front display 20A is arranged below the display surface 22 of the rear display 20B.

As shown in FIG. 33, the image display device 10 includes a display overlapping section 26. The display overlapping portion 26 is a portion where the front display 20A and the back display 20B overlap in the device thickness direction. In the display overlapping portion 26, the display back surface 24 of the front display 20A and the display front surface 21 of the back display 20B are in an overlapping state.

As shown in FIG. 34, the front display 20A is housed in the visor hood 50 while protruding from the recessed opening 56. As shown in FIG. On the other hand, the rear display 20B is housed in the visor hood 50 without protruding from the recessed opening 56. The rear display 20B has a thickness dimension D1. The thickness of the front display 20A is the same as the thickness of the rear display 20B. The protrusion dimension D2 of the back display 20B from the concave opening 56 is smaller than the thickness dimension D1. For example, the protrusion dimension D2 is 1/2 or less of the thickness dimension D1. Note that in this embodiment, the image display device 10 does not have the hood cover 60. Further, in FIG. 34, illustration of the heat insulating section 30 and the heat radiating section 40 is omitted.

As shown in FIG. 35, each of the plurality of displays 20 has a display main body 201, a polarizing plate 202, and a display frame 203. The display main body 201 is, for example, an organic EL display, and is formed into a plate shape. The polarizing plate 202 is stacked on the plate surface of the display main body 201 and is fixed to the display main body 201. Polarizing plate 202 forms display front surface 21 . The polarizing plate 202 forms both the display surface 22 and the frame surface 23. The polarizing plate 202 has, for example, a transmission axis and an absorption axis that are orthogonal to each other, and transmits light changed in the direction of the transmission axis and absorbs light changed in the direction of the absorption axis.

The display frame portion 203 extends along the outer peripheral edge of the display body 201 and is formed in a frame shape. The display frame portion 203 forms a side end portion 25 and a frame surface 23. The display frame portion 203 is made of a resin material or the like. The display frame portion 203 is formed by applying paint to the display body 201 and the polarizing plate 202, for example. The display frame portion 203 has a dark color such as black with low brightness. The display frame portion 203 has low light reflectivity. The display frame portion 203 is a reflection suppressing portion that suppresses reflection of light. When light such as image light hits the display frame 203, the light is less likely to be reflected by the display frame 203. Processing such as applying paint to form the display frame portion 203 is reflection suppression processing.

The display frame section 203 has a frame front section 203a and a frame edge section 203b. The frame front part 203a is a part that forms the frame surface 23, and is overlapped with the polarizing plate 202, for example. The frame edge portion 203b is a portion forming the edge surface of the display 20, and is overlapped with each end surface of the display body 201 and the polarizing plate 202, for example. The side end portion 25 is formed by the frame edge portion 203b.

The display frame portion 203 of the front display 20A is in a state spanning the display surface 22 and frame surface 23 of the rear display 20B in the device width direction. In the device width direction, the width dimension W1 of the display overlapping section 26 is larger than the width dimension W2 of the frame surface 23 formed by the frame front section 203a. In the device width direction, the separation distance W3 between the display surface 22 of the front display 20A and the display surface 22 of the rear display 20B is the same as the width dimension W2. On the other hand, the separation distance W3 is smaller than the width dimension W1.

For example, unlike this embodiment, a configuration is assumed in which the side end portion 25 of the front display 20A is disposed in front of the frame surface 23 of the back display 20B. In this configuration, in the device width direction, at least a portion of the frame surface 23 of the back display 20B is exposed between the display surface 22 of the front display 20A and the display surface 22 of the back display 20B. Therefore, in the device width direction, both the frame surface 23 of the front display 20A and the frame surface 23 of the rear display 20B are exposed between the two adjacent display surfaces 22. Thereby, the separation distance W3 becomes larger than the width dimension W2.

In contrast, according to the present embodiment, the entire frame surface 23 of the rear display 20B is hidden behind the front display 20A. Therefore, in the device width direction, the frame surface 23 of the back display 20B is not exposed between the two adjacent display surfaces 22. Thereby, the separation distance W3 becomes the same as the width dimension W2. When the separation distance W3 becomes the same as the width dimension W2 in this way, the width dimension of the virtual image gap region becomes smaller compared to the above-described configuration in which the separation distance W3 is larger than the width dimension W2. Therefore, when the occupant visually recognizes the virtual image Vi, it is possible to prevent the virtual image gap area from becoming noticeable.

As shown in FIG. 36, on the viewing surface Sv, a virtual image gap area is displayed between two adjacent virtual images Vi. In this virtual image gap area, the frame surface 23 of the front display 20A is displayed as a virtual image V23. However, this virtual image V23 is displayed so slightly that the occupant can barely see it. The virtual image Vi includes an information virtual image Vi1 and a background virtual image Vi2. The information virtual image Vi1 is a virtual image that displays various information such as vehicle information. The background virtual image Vi2 is a virtual image that displays the background for the information virtual image Vi1. The background virtual image Vi2 extends along the virtual image V23 that displays the frame surface 23, and is displayed at a position adjacent to the virtual image V23. A background virtual image Vi2 may be displayed between the information virtual image Vi1 and the virtual image V23. The information virtual image Vi1 may be referred to as a first virtual image, and the background virtual image Vi2 may be referred to as a second virtual image.

The image display device 10 includes a control section 80 similarly to the third embodiment. The control unit 80 causes the display 20 to display an image V in which the occupant cannot distinguish between the virtual image V23 showing the frame surface 23 and the background virtual image Vi2. For example, the control unit 80 controls the display 20 so that at least one of the hue, saturation, and brightness of the background virtual image Vi2 is the same as or close to that of the virtual image V23. This can prevent the virtual image V23 from standing out against the background virtual image Vi2 and causing the occupant to feel uncomfortable.

According to this embodiment, the display frame portion 203 is the reflection suppressing portion. With this configuration, it is difficult for the image light emitted from the rear display 20B to be reflected on the display frame 203 of the front display 20A. Therefore, it is possible to prevent the image light emitted from the rear display 20B from being reflected on the edge surface of the front display 20A, and the boundary between the background virtual image Vi2 and the virtual image V23 becoming conspicuous due to the reflected light.

According to this embodiment, the side end portion 25 of the front display 20A is provided at a position overlapping the display surface 22 of the rear display 20B in the device thickness direction. Therefore, unlike a configuration in which there is a gap between the front display 20A and the back display 20B in the device thickness direction, a virtual image reflecting the gap is not included in the virtual image gap area. Therefore, it is possible to prevent the virtual image gap region from being noticeable to the occupant who visually recognizes the virtual image Vi due to the virtual image showing the gap.

<Modification 10>
In the fourth embodiment, the display frame portion 203 may have a shape that wraps around toward the display back surface 24 side. In Modification 10, for example, as shown in FIG. 37, the display frame section 203 has a frame rear section 203c in addition to a frame front section 203a and a frame edge section 203b. The frame back portion 203c is provided on the opposite side of the display body 201 from the frame front portion 203a. The frame back portion 203c is stacked on the back side plate surface of the display main body 201. In the display frame section 203, a frame edge section 203b connects the frame front section 203a and the frame rear section 203c. The frame back portion 203c forms a part of the display back surface 24.

In the display overlapping section 26, the frame back section 203c of the front display 20A is arranged at a position spanning the display surface 22 and the frame surface 23 of the rear display 20B in the device width direction. That is, at least a portion of the frame back portion 203c of the front display 20A faces the display surface 22 of the rear display 20B. With this configuration, even if the image light from the display surface 22 of the rear display 20B is irradiated onto the frame back section 203c instead of the display main body 201 in the front display 20A, it is difficult to be reflected at the frame back section 203c. Therefore, it is possible to prevent the boundary between the virtual image Vi and the virtual image V23 from becoming conspicuous due to the image light emitted from the rear display 20B.

<Other embodiments>
The disclosure in this specification is not limited to the illustrated embodiments. The disclosure includes the illustrated embodiments and variations thereon by those skilled in the art. For example, the disclosure is not limited to the combinations of parts and elements shown in the embodiments, and can be implemented with various modifications. The disclosure can be implemented in various combinations. The disclosure may have additional parts that can be added to the embodiments. The disclosure includes embodiments in which parts and elements of the embodiments are omitted. The disclosure encompasses any substitutions, or combinations of parts, elements between one embodiment and another. The disclosed technical scope is not limited to the description of the embodiments. The disclosed technical scope is indicated by the claims, and should be understood to include all changes within the meaning and scope equivalent to the claims.

<Constitution group A>
In each of the above embodiments, the reinforcing member 90 does not need to span the pair of hood side ends 59 as long as it extends along the hood tip 57. For example, the reinforcing member 90 may be arranged at a position closer to one of the pair of hood side ends 59 in the X direction. The reinforcing member 90 may be shorter than 1/2 of the hood tip 57 as long as it spans two adjacent displays 20. The reinforcing member 90 may extend along the long side of one display 20 without spanning two adjacent displays 20. The reinforcing member 90 may protrude from the hood side end portion 59. For example, the reinforcing member 90 may be longer than the hood tip 57.

In each of the above embodiments, the reinforcing member 90 may be provided at a position overlapping the display 20 in the Z direction as long as it extends along the hood tip 57. Regarding the visor hood 50, for example, if a portion between the display 20 and the hood tip 57 is referred to as a tip portion, at least a portion of the reinforcing member 90 may be provided at this tip portion. The reinforcing member 90 may be in contact with at least one of the display 20, the heat insulating section 30, and the heat radiating section 40.

In each of the embodiments described above, at least a portion of the reinforcing member 90 may be exposed to the outside from the visor hood 50, as in Modifications 4 and 8 described above. Further, at least a portion of the reinforcing member 90 may be exposed inside the hood recess 53.

In each of the above embodiments, the reinforcing member 90 does not need to be an elongated member as long as it extends along the hood tip 57. The cross-sectional shape of the reinforcing member 90 may be circular, elliptical, rectangular, or the like. The reinforcing member 90 may be a cylindrical member. The reinforcing member 90 does not have to have the same shape as the hood tip 57. For example, while the hood tip 57 is curved, the reinforcing member 90 may extend straight or may be curved toward the side opposite to the hood tip 57. The reinforcing member 90 does not need to be electrically conductive. A plurality of reinforcing members 90 may be provided. For example, the plurality of reinforcing members 90 may be arranged in at least one of the X direction, the Y direction, and the Z direction. Further, one reinforcing portion may be formed by a plurality of reinforcing members 90.

In each of the embodiments described above, the hood distal end portion 57 and the hood proximal end portion 58 may have different curved shapes. For example, while the hood distal end 57 is curved, the hood proximal end 58 may extend straight in the X direction.

In each of the above embodiments, the connecting portions 111 to 114 may protrude from the hood body 120 in the Z direction. The connecting portions 111 to 114 do not need to protrude from the hood body 120. For example, the hood body 120 may be provided with a receiving portion. Further, the connecting parts 111 to 114 may be provided with fasteners or engaging parts instead of receiving parts.

In each of the above embodiments, the visor hood 50 may have its upper end at a position shifted in the X direction from the position where the hood vertical line L1b passes. In the visor hood 50, the height positions of the pair of hood side ends 59 may be different. In the visor hood 50, the lower end portion may be located closer to the hood vertical line L1b than the hood side end portion 59.

In each of the above embodiments, the visor hood 50 does not need to be curved as long as it is curved so as to expand in the Z direction. For example, the main body base portion 121 and the hood horizontal line L1a may be curved so as to swell upward in stages, or may be curved linearly upward. The visor hood 50 may be bent in the Z direction such that one of the hood distal end 57 and the hood proximal end 58 is the upper end.

In each of the embodiments described above, when the visor hood 50 is curved so as to expand or recess in the Y direction, the manner in which the visor hood 50 curves does not need to be curved. For example, at least one of the hood tip 57, the hood base 58, and the hood horizontal line L1a may be curved so as to gradually expand in the Y direction, or may be curved linearly in the Y direction. good. The hood distal end portion 57 and the hood proximal end portion 58 may be bent in the Y direction so that one end of each becomes a front end or a back end.

In each of the above embodiments, the hood side end portion 59 may be curved so as to bulge or concave in the X direction, or may be curved so as to bulge in the Z direction. The hood side end portion 59 may be bent in the Z direction such that one end thereof becomes an upper end portion or a lower end portion, or may be bent in the X direction such that one end thereof becomes a side end portion.

In each of the above embodiments, a plurality of displays 20 may be arranged in the vertical direction. In a configuration in which the image display device 10 is installed in the vehicle interior 101 so that the device width direction is in the vehicle longitudinal direction, it is preferable that a plurality of displays 20 are arranged in the vehicle longitudinal direction. The image display device 10 may have only one display 20.

In each of the above embodiments, as long as the display back surface 24 is covered by the visor hood 50, the display 20 does not need to be housed inside the hood recess 53. For example, in a configuration where the visor hood 50 does not have the hood recess 53, the visor hood 50 only needs to cover the display back surface 24 with the hood front surface 51 facing the display back surface 24. In this configuration, the hood front surface 51 corresponds to the case-facing surface. The visor hood 50 does not need to have the main body frame portion 122. For example, the entire visor hood 50 may be formed by the main body base portion 121.

In each of the above embodiments, the display 20 may be indirectly fixed to the visor hood 50 via one of the heat insulating section 30 and the heat sink section 41. The display 20 may be directly fixed to the visor hood 50 without using the heat insulating section 30 and the heat sink section 41. Examples of configurations in which the display 20 is directly fixed to the visor hood 50 include a configuration in which the display side end 25 is fixed to the concave wall surface 55 and a configuration in which the display back surface 24 is fixed to the concave bottom surface 54. The display 20 and the visor hood 50 may be fixed together using an adhesive, screws, or the like.

In each of the above embodiments, in one display 20, one display-side end 25 is arranged in front of the adjacent display 20, and the other display-side end 25 is arranged in the back of the adjacent display 20 on the opposite side. may have been done. In this configuration, these displays 20 are inclined with respect to the width direction of the image display device 10.

In each of the above embodiments, the visor hood 50 may be attached to an interior panel different from the instrument panel 102. In addition to the instrument panel 102, interior panels include door panels, ceiling panels, and the like. In a configuration in which the visor hood 50 is connected to an interior panel by the connecting portions 111 to 114, the interior panel corresponds to the attachment target. The visor hood 50 may be connected to a vehicle body such as a body frame of the vehicle 100 by connecting portions 111 to 114. For example, the connecting portions 111 to 114 connect the visor hood 50 to at least one of an interior panel and the vehicle body. In this configuration, at least one of the interior panel and the vehicle body corresponds to the attachment target.

<Constitution group B>
In each of the above embodiments, the heat insulating part 30 does not need to be joined to the concave bottom surface 54 as long as it is fixed to the visor hood 50. For example, the heat insulating section 30 may be fixed to the visor hood 50 with a fixing device such as a screw. Furthermore, the heat insulating section 30 may be formed of an air layer. Furthermore, a heat insulating section 30 may be provided between the display back surface 24 and the heat sink section 41. In addition, a heat sink portion 41 may be provided between the concave bottom surface 54 and the heat insulating portion 30.

In each of the above embodiments, the image display device 10 does not need to have at least one of the heat insulating section 30 and the heat radiating section 40. In a configuration where the image display device 10 does not have both the heat insulating section 30 and the heat radiating section 40, the display back surface 24 may be directly joined to the concave bottom surface 54.

<Common>
In each of the above embodiments, the display 20 does not need to have the frame surface 23. That is, the entire display front surface 21 may be the display surface 22. The image display device 10 does not need to have the hood cover 60.

In each of the embodiments described above, the display 20 as an image display unit does not have to be self-luminous. For example, the display 20 may be an image element such as a liquid crystal panel. In a configuration where the display 20 is not self-luminous, it is preferable that the image display device 10 has a light source such as an LED as a backlight.

In each of the embodiments described above, the two adjacent display surfaces 22 are located at positions shifted in the thickness direction of the device, regardless of whether or not the two adjacent displays 20 are arranged in overlapping positions with each other in the thickness direction of the device. It may be placed in

In each of the above embodiments, a plurality of reflecting mirrors 15 may be arranged in the width direction of the device. In this configuration, the plurality of reflective surfaces 16 collectively form one viewing surface Sv. The virtual image display section does not need to be the reflecting mirror 15 as long as it is possible to display the image V as the virtual image Vi. The virtual image display section may be, for example, a half mirror or a lens member. A half mirror is a member that has a mirror surface and both transmits and reflects image light incident on the mirror surface. In vehicle 100, a windshield may be used as a virtual image display section. For example, a configuration is adopted in which image light from the image display device 10 is irradiated onto the windshield. In this configuration, the inner surface of the windshield reflects the image light and displays the virtual image Vi. Therefore, at least a portion of the inner surface of the windshield becomes the visible surface Sv.

In each of the embodiments described above, the vehicle 100 on which the display devices 10 and 11 are mounted includes an automatic driving vehicle capable of both automatic driving and manual driving. Vehicles 100 on which display devices 10 and 11 are mounted include passenger cars, buses, construction vehicles, agricultural machinery vehicles, and the like. In addition to the vehicle 100, examples of moving objects on which the display devices 10 and 11 are mounted include trains, airplanes, ships, and the like. The display devices 10 and 11 may be mounted on a vehicle. Examples of the vehicle include a mobile vehicle such as the vehicle 100 and a stationary vehicle such as a game machine. The display devices 10 and 11 may be installed in stationary equipment or equipment. The display devices 10 and 11 may be applied to a mobile information terminal such as a head mounted display. In a configuration in which the display devices 10 and 11 are mounted on equipment or equipment different from the vehicle 100, at least a portion of the finished surface of these equipment or equipment may be formed by the visor hood 50.

<Characteristics of constituent group A>
In a display device, if an external force is applied to the back cover, such as when a viewer viewing an image grabs the back cover, the back cover may deform. In this case, there is a concern that stress will be concentrated on the display due to the deformation of the back cover, causing abnormalities in the display. On the other hand, the configuration disclosed in this specification includes the features of configuration group A as described below. According to feature A1 below, it is possible to suppress occurrence of an abnormality in the image display section of the display device.

[Feature A1]
A display device (10) attached to an attachment target (102),
an image display section (20) having a display surface (22) for displaying the image (V) and a display back surface (24) on the opposite side to the display surface;
a display case (50) that covers the back of the display and is connected to the attachment target;
Equipped with
The display case is
The back of the case (52) facing away from the display surface,
a case proximal end (58) extending in the longitudinal direction (X) of the back of the case and connected to the attachment target;
a case tip (57) provided on the opposite side of the case base end in the transverse direction (Y) of the case back and extending in the longitudinal direction;
It has
A display device in which a reinforcing part (90) for reinforcing the display case is provided in the display case so as to extend along the front end of the case.

[Feature A2]
The display device according to feature A1, wherein the reinforcing portion has a length dimension of 1/2 or more of the case tip and is shorter than the case tip.

[Feature A3]
The display case is
It has a pair of case short edges (59) that extend in the lateral direction and span between the case base end and the case distal end,
The display device according to feature A1 or A2, wherein the reinforcing portion extends across a pair of short edges of the case.

[Feature A4]
A plurality of image display units are arranged along the tip of the case.
The display device according to any one of features A1 to A3, wherein the reinforcing portion extends longitudinally between two adjacent image display portions.

[Feature A5]
The display device according to any one of features A1 to A4, wherein the reinforcing portion is provided between the case tip and the image display portion in the lateral direction.

[Feature A6]
The display device according to any one of features A1 to A5, wherein the reinforcing portion is provided at a position closer to the front end of the case than the image display portion.

[Feature A7]
The display device according to any one of features A1 to A6, wherein the reinforcing portion has higher conductivity than the display case.

[Feature A8]
A display device mounted on a vehicle (100),
The vehicle has an interior panel (102) forming the interior of the vehicle interior (101) as an attachment target,
The display device according to any one of features A1 to A7, wherein the display case is a member attached to an interior panel.

<Characteristics of component group B>
In display devices, there is a concern that the size of the display surface may be insufficient for the amount of information contained in an image. On the other hand, the configuration disclosed in this specification includes the features of configuration group B as described below. According to feature B1 below, it is possible to increase the size of the viewing surface that is viewed by the viewer in the virtual image display device.

[Feature B1]
A virtual image display device (11) that displays an image (V) as a virtual image (Vi),
a plurality of image display units (20, 20A, 20B) each having a display surface (22) that emits image light and displays an image;
a virtual image display section (15) having a reflective surface (16) that reflects image light and is visible to a viewer, and displays a virtual image using the image light reflected by the reflective surface;
Equipped with
A virtual image display device in which the plurality of image display sections are arranged so as to be lined up along a reflective surface with each display surface facing the reflective surface.

[Feature B2]
Among the two adjacent image display sections (20A, 20B), one image display section (20A) is provided in a position where it does not block the image light emitted from the other image display section (20B). The virtual image display device according to B1.

[Feature B3]
Among the two adjacent image display sections (20A, 20B), the side edge (25) of one image display section (20A) overlaps the other image display section (20B) in the direction perpendicular to the reflective surface. The virtual image display device according to feature B1 or B2, which is provided at a position.

[Feature B4]
The virtual image display device according to feature B1 or B2, wherein the two adjacent image display sections (20A, 20B) are spaced apart from each other along the reflective surface.

[Feature B5]
The image display section is
It has a frame surface (23) extending along the outer periphery of the display surface and facing the reflective surface together with the display surface,
The respective frame surfaces of the plurality of image display sections have the same color or similar colors. The virtual image display device according to any one of features B1 to B4.

[Feature B6]
Any one of features B1 to B5, comprising: a display case (50) that extends over a plurality of image display units and covers the display back (24) on the opposite side to the display surface of the image display units; The virtual image display device described in .

[Feature B7]
A virtual image display device mounted on a vehicle (100),
The display case is
The virtual image display device according to feature B6, which spans between two adjacent pillars (108) via a windshield (106) of the vehicle.

[Feature B8]
A virtual image display device mounted on a vehicle (100),
The virtual image display device according to any one of features B1 to B7, wherein the display case is a member attached to an interior panel (102) forming an interior of a vehicle interior (101).

<Constitution group A>
DESCRIPTION OF SYMBOLS 10... Image display device as a display device, 20... Display as an image display part, 22... Display surface, 24... Display back surface as a display back surface, 50... Visor hood as a display case, 52... Hood back surface as a case back surface, 57... Hood tip end as a case tip part, 58... Hood base end part as a case base end part, 59... Hood side end part as a case short edge part, 90... Reinforcement member as a reinforcement part, 100... Vehicle, 101...Vehicle interior, 102...Instrument panel as an attachment target and interior panel, V...Image, X...X direction as the longitudinal direction, Y...Y direction as the transversal direction.

<Constitution group B>
DESCRIPTION OF SYMBOLS 11... Virtual image display device, 15... Reflection mirror as a virtual image display part, 16... Reflection surface, 20... Display as an image display part, 22... Display surface, 23... Frame surface, 24... Display back surface as a display back surface, 25 ...Side end portion, 50... Visor hood as display case, 100... Vehicle, 101... Vehicle interior, 102... Instrument panel as interior panel, 106... Front windshield as windshield, 108... A-pillar as pillar, V... Image, Vi...virtual image.

Claims (7)

A display device (10) attached to an attachment target (102),
an image display section (20) having a display surface (22) for displaying an image (V) and a display back surface (24) on the opposite side to the display surface;
a display case (50) that covers the display back surface and is connected to the attachment target;
The display case is
a case back face (52) facing away from the display surface;
a case proximal end (58) extending in the longitudinal direction (X) of the back of the case and connected to the attachment target;
a case tip (57) provided on the opposite side of the case base end in the transverse direction (Y) of the case back and extending in the longitudinal direction;
It has
A plurality of the image display units are arranged along the distal end of the case,
The display case includes a reinforcing portion (90) for reinforcing the display case on the case front end side of the case front end side and the case base end side so as to extend along the case front end. Only _
In the display device, the reinforcing portion extends across two adjacent image display portions in the longitudinal direction . The display device according to claim 1, wherein the reinforcing portion has a length dimension that is 1/2 or more of the case tip and is shorter than the case tip. The display case is
a pair of case short edges (59) extending in the lateral direction and extending between the case base end and the case distal end;
3. The display device according to claim 1, wherein the reinforcing portion extends across the pair of short edges of the case. 4. The display device according to claim 1 , wherein the reinforcing section is provided between the case tip and the image display section in the lateral direction. The display device according to any one of claims 1 to 4 , wherein the reinforcing section is provided at a position closer to the case tip than the image display section. The display device according to any one of claims 1 to 5 , wherein the reinforcing portion has higher conductivity than the display case. A display device mounted on a vehicle (100),
The vehicle has an interior panel (102) forming the interior of the vehicle interior (101) as the attachment target,
The display device according to claim 1, wherein the display case is a member attached to the interior panel.

Images