JP6011575B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a vehicle display device that is mounted on a vehicle and displays vehicle information.

  Conventionally, a so-called ambient type information display is known in which information is transmitted through a peripheral visual field of a viewer by blinking of a light emitting region, a change in light emission color, or the like. As a type of display device that displays such information, for example, Patent Document 1 discloses a composite instrument that includes an ambient display unit formed on the outer edge of a speedometer. This composite instrument is provided with a liquid crystal panel and a backlight for emitting and displaying an image, and a translucent decorative ring disposed on the display surface of the liquid crystal panel. In the above configuration, the ambient display unit provided in the decoration ring is lit and displayed by causing the display surface located on the back side of the decoration ring to emit light.

JP 2009-42120 A

  Now, the ambient type information display like patent document 1 makes a light emission area | region like an ambient display part light-emit, when vehicle information is acquired. Therefore, the viewer only perceives that some kind of situation change has occurred due to the change in the light emission situation. Therefore, the inventor of the present invention has repeatedly investigated the effective use of ambient type information display, and has sought a method for telling the viewer what has actually occurred. As a result, the inventor of the present invention paid attention to finely controlling the light emission of the light emitting region using each pixel of the liquid crystal panel.

  The present invention has been made in view of the above problems, and its purpose is a vehicle capable of transmitting detailed information to a viewer even if it is a so-called ambient display that transmits information through the peripheral visual field of the viewer. Display device.

In order to achieve the above object, the invention according to claim 1 is mounted on a vehicle, and a light emitting region (13, 213, 313, 413) that emits light by emitting light displays vehicle information relating to the vehicle. A display device for a vehicle that is formed so as to surround a display area (10, 210) that has a display screen (32), and a plurality of pixels (33) that emit and display an image are arranged along the display screen Display means (30), an incident surface (61 , 261 , 361) facing a part of a plurality of pixels, and an emission surface (62 , 262) that forms a light emitting region by emitting light incident from the incident surface. , 362), and a light guide portion that extends toward the exit surface from the incident surface has a (63,263,363), and is positioned on the outer peripheral side of the display area than the incident surface exit surface, and the outer peripheral In the light guide that tilts to the side, A translucent member (60,260,360) that is covered by the inner circumferential wall surface (64) of light-shielding shielding layer location (66), an information acquisition unit that acquires vehicle information (53), the information acquisition means Based on the vehicle information acquired by the control means (51), the control means (51) for controlling the light emitted from the opposing pixel (34) facing the incident surface to emit the light emitting region with the light emission pattern corresponding to the vehicle information. ), And the control means controls the counter pixels to emit a specific light emission spot (15, 415) having a contrast difference from the other light emission parts (14, 414). The specific light-emitting spot is moved by a movement corresponding to the vehicle information acquired and displayed.

  In the present invention, the light emitting region emits light by light incident on the translucent member from some of the opposing pixels in the display means. With such a configuration, when vehicle information related to the vehicle is acquired, the light emitting area not only emits light, but also displays a specific light emitting spot with a contrast difference with other light emitting parts, and The spot can be moved by a movement corresponding to the acquired vehicle information. Therefore, the viewer of the vehicular display device can perceive more specifically what happened from the movement of the specific light-emitting spot after perceiving some change in the situation by simple light emission in the light-emitting area. In addition, the movement of the specific light emission spot is easily perceived by the form of the light emission area formed so as to surround the display area even if the movement of the specific light emission spot is visible in the peripheral visual field. According to the above, even if it is a display device for vehicles which performs ambient display using a peripheral visual field of a viewer, it becomes possible to convey detailed information to a viewer by this ambient display.

  Note that the reference numbers in the parentheses are merely examples of correspondence with specific configurations in the embodiments described later in order to facilitate understanding of the present invention, and limit the scope of the present invention. It is not intended.

It is a front view of the display apparatus for vehicles by a first embodiment of the present invention. It is a figure which shows the mechanical structure of the display apparatus for vehicles by 1st embodiment of this invention, Comprising: It is the II-II sectional view taken on the line of FIG. It is a block diagram which shows the electric constitution of the display apparatus for vehicles by 1st embodiment of this invention. It is a figure for demonstrating the rotational movement pattern which is one of the light emission patterns of an ambient light emission area | region. It is a figure for demonstrating a vertical movement pattern. It is a figure for demonstrating the left-right movement pattern. It is a figure for demonstrating an oblique movement pattern. It is a figure for demonstrating the whole area extinction lighting pattern. It is a figure for demonstrating a partial extinction lighting pattern. It is a flowchart which shows the display control process implemented by a meter control circuit in order to control the light emission display of an ambient light emission area | region. It is a figure which shows the modification of FIG. It is a figure which shows another modification of FIG. It is a figure which shows another modification of FIG. It is a figure which shows typically the color space of a L * a * b * color system.

  Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. In addition, the overlapping description may be abbreviate | omitted by attaching | subjecting the same code | symbol to the corresponding component in each embodiment. When only a part of the configuration is described in each embodiment, the configuration of the other embodiment described above can be applied to the other part of the configuration. In addition, not only combinations of configurations explicitly described in the description of each embodiment, but also the configurations of a plurality of embodiments can be partially combined even if they are not explicitly specified unless there is a problem with the combination. .

(First embodiment)
A vehicle display device 100 according to the first embodiment of the present invention shown in FIG. 1 is a vehicle display device that is mounted on a vehicle and displays various information related to the vehicle. The vehicle display device 100 is accommodated in an instrument panel provided in the vehicle interior of the vehicle, and is arranged with the front side shown in FIG. 1 facing the driver's seat side. The display of the vehicle display device 100 includes a main display area 10, two sub display areas 11 and 12, an ambient light emission area 13, and the like.

  The main display area 10 is formed at the center in the horizontal (left and right) direction of the vehicle display device 100. In the main display area 10, for example, a speedometer image SM and a tachometer image TM are displayed. The speedometer image SM is arranged in the center of the main display area 10 and digitally displays the traveling speed of the vehicle with numbers. The tachometer image TM is formed so as to surround the speedometer image SM, and displays the rotational speed of the output shaft in the traveling engine mounted on the vehicle in an analog manner by combining the pointer image portion and the scale image portion.

  The two sub display areas 11 and 12 are arranged on both sides of the main display area 10 in the left-right direction. In the sub display area 11 located on the left side of the main display area 10, for example, a fuel gauge image FM or the like is displayed. The fuel meter image FM displays the remaining amount of fuel by increasing or decreasing the bar image portion. In the sub display area 12 located on the right side of the main display area 10, for example, a water temperature gauge image WM or the like is displayed. The water thermometer image WM displays the temperature of the cooling water by increasing or decreasing the bar image portion.

  The ambient light emitting region 13 is formed in an annular shape so as to surround the main display region 10. The ambient light emitting region 13 emits light by emitting light. The ambient light emission region 13 is a region where so-called ambient type information display is performed. The ambient light emitting region 13 transmits information through the peripheral visual field of the viewer by light emission with a predetermined light emission pattern.

  The mechanical configuration of the above vehicle display device 100 will be described. In the following description, as shown in FIG. 2, the direction in which the front surface of the vehicle display device 100 is directed is the display direction SD, and the direction opposite to the display direction SD is the back direction BD.

  The vehicle display device 100 includes a display 30 and an acrylic cylinder 60.

  The display device 30 is protected from dust and dirt in the atmosphere by being housed in the housing 80. The display 30 is configured by combining a liquid crystal panel 31, a backlight 40, and the like.

  The liquid crystal panel 31 has a rectangular display screen 32. The liquid crystal panel 31 is a so-called dot matrix type display that displays an image by a plurality of pixels 33 arranged along the display screen 32. Each pixel 33 is provided with three types of sub-pixels that transmit light of each color by being combined with color filters of each color of red (R), green (G), and blue (B). By controlling the gradation value of each sub-pixel, for example, between 0 and 255, the aperture ratio of each sub-pixel, and thus the amount of light transmitted through each sub-pixel increases or decreases. With the above control, the color of each pixel is adjusted, so that the liquid crystal panel 31 can display an image in color.

  The backlight 40 is located in the back direction BD of the liquid crystal panel 31. The backlight 40 includes a backlight light source 41 (see FIG. 3) and a diffusion plate 42. The backlight 40 emits the diffused light toward the display direction SD while diffusing the light emitted from the backlight light source 41 by the diffusion plate 42. The display 30 can emit and display an image on the display screen 32 by the transmitted illumination by the backlight 40 described above.

  The acrylic cylinder 60 is formed in a cylindrical shape by a translucent resin material such as acrylic resin. The acrylic cylinder 60 is placed on the display screen 32 in a posture in which the axial direction is along the display direction SD. The acrylic cylinder 60 is arranged at the center of the display screen 32 so as to surround the outer edge of the main display area 10. The acrylic cylinder 60 is held by a housing 80 or the like, for example. The acrylic cylinder 60 is gradually enlarged in diameter in the display direction SD. The acrylic cylinder 60 has an incident surface 61, a light guide unit 63, and an exit surface 62.

  The incident surface 61 is formed on one of the both ends in the axial direction of the acrylic cylinder 60 located in the back direction BD. The incident surface 61 has a planar shape along the display screen 32 and is formed in an annular shape surrounding the main display region 10. By holding the acrylic cylinder 60 by the housing 80, the incident surface 61 faces the display screen 32 with a slight gap between the incident screen 61 and the display screen 32. The incident surface 61 faces a part of the plurality of pixels 33 (hereinafter referred to as “ambient display pixels 34”). The incident surface 61 allows light emitted from the pixel 34 to pass through the ambient display pixel 34 and enter the inside of the acrylic cylinder 60. Note that the incident surface 61 may be in contact with the display screen 32.

  The light guide unit 63 extends from the incident surface 61 toward the exit surface 62. The light guide unit 63 guides light incident from the incident surface 61 to the emission surface 62. The light guide unit 63 is formed in a posture inclined by, for example, 45 ° with respect to the axial direction of the acrylic cylinder 60. The light guide portion 63 is formed with an inner peripheral wall surface 64 positioned on the main display region 10 side and an outer peripheral wall surface 65 positioned on the outer peripheral side opposite to the inner peripheral wall surface 64. The inner peripheral wall surface 64 is shaped along the outer peripheral wall surface 65 by making the thickness of the light guide portion 63 in the radial direction substantially constant. The inner peripheral wall surface 64 and the outer peripheral wall surface 65 are covered with a light shielding layer 66. The light shielding layer 66 is formed by a light shielding coating or the like, and suppresses leakage of light from the wall surfaces 64 and 65 and incidence of light on the wall surfaces 64 and 65. The light shielding layer 66 may be formed of a light shielding cover member or the like that is assembled to the acrylic cylinder 60.

  The exit surface 62 is formed on the other end of the acrylic cylinder 60 in the axial direction of the acrylic cylinder 60 that is positioned in the display direction SD. The exit surface 62 has a planar shape along the display screen 32 and the entrance surface 61 and is formed in an annular shape surrounding the main display region 10. The exit surface 62 is located on the outer peripheral side of the main display area 10 with respect to the incident surface 61 due to the posture of the light guide portion 63 inclined toward the outer peripheral side. The exit surface 62 emits light by emitting light incident on the acrylic cylinder 60 from the entrance surface 61 in the display direction SD. The exit surface 62 forms the ambient light emitting region 13.

  Next, the electrical configuration of the vehicle display device 100 will be described with reference to FIG. 2 based on FIG. 3. The vehicle display device 100 is electrically configured by a meter control circuit 50 and the like in addition to the liquid crystal panel 31 and the backlight light source 41 described above.

  The meter control circuit 50 is configured by a microcomputer or the like that operates based on a program. The meter control circuit 50 is connected to a vehicle-mounted Local Area Network (in-vehicle LAN) 91, an external battery 95, an ignition relay 94, and the like. Various control devices such as a power supply control device 92 are connected to the in-vehicle LAN 91. The power supply control device 92 detects a pressing operation of the ignition switch 93 by the driver (viewer) and applies a voltage to the ignition relay 94 to make the relay 94 energized.

  The meter control circuit 50 includes an information acquisition unit 53 and a liquid crystal control unit 51 as functional blocks by executing a program. The information acquisition unit 53 acquires vehicle information from various control devices mounted on the vehicle via the in-vehicle LAN 91. The liquid crystal control unit 51 controls the display 30 based on the vehicle information acquired by the information acquisition unit 53. Specifically, the liquid crystal control unit 51 generates gradation data indicating the gradation value of each sub-pixel, and drives each pixel 33 of the liquid crystal panel 31 based on the gradation data. Further, the liquid crystal control unit 51 controls the light emitted from the ambient display pixels 34 to cause the ambient light emitting region 13 to emit light with a light emission pattern corresponding to the acquired vehicle information.

  In the above configuration, when the ignition of the vehicle is turned on based on the input to the ignition switch 93, the ignition relay 94 is energized by applying a voltage. In this way, the vehicle display device 100 displays each image SM, TM, etc. on the display screen 32 as shown in FIG.

  Next, details of light emission display by the ambient light emission region 13 will be described. As shown in FIGS. 4 to 7, a plurality of high-intensity spots 15 that shine brighter than other light emitting portions are displayed in the ambient light emitting region 13. The high brightness spot 15 has a shape extending in a band shape along the outer edge of the main display region 10. The high-intensity spot 15 moves in the ambient light emission region 13 with a movement corresponding to the vehicle information acquired by the information acquisition unit 53 (see FIG. 3). Hereinafter, a plurality of light emission patterns of the ambient light emission region 13 for moving the high brightness spot 15 will be described in order based on FIGS.

  Here, in the following description, the other light-emitting portion that emits light with lower luminance than the high-luminance spot 15 in the light-emitting section excluding the high-luminance spot 15 in the ambient light-emitting region 13 is referred to as a normal light-emitting portion 14. . The area of the normal light emitting portion 14 is wider than the area of the high brightness spot 15. Further, a contrast difference due to luminance and color difference is provided between the normal light emitting unit 14 and the high luminance spot 15. 4-7, the light emission of the normal light emission part 14 is typically shown with a dot.

<Rotation movement pattern>
The rotational movement pattern shown in FIG. 4 is displayed when operation information related to the traveling engine is acquired by the information acquisition unit 53 (see FIG. 3). The movement information of the high brightness spot 15 by the rotational movement pattern is notified to the viewer. This operation information is, for example, information on the rotational speed of the output shaft of the engine and information on the operation of the regenerative brake by the engine. In the rotational movement pattern, for example, three high-intensity spots 15 are displayed in the ambient light emission region 13. These high-intensity spots 15 are displayed at an interval from each other and rotate in the circumferential direction around the main display area 10. Hereinafter, specific examples of the rotational movement pattern will be shown.

  When the vehicle is traveling by the output from the engine, the ambient light emitting region 13 emits light. Further, the high-intensity spot 15 slowly rotates around the clock (right) (see the solid arrow in FIG. 4). When the rotation speed indicated by the acquired rotation speed information is increased, the rotation speed of the high brightness spot 15 is also gradually increased, and the emission color of the ambient light emission region 13 is changed to orange. Furthermore, the light emission color of the ambient light emission region 13 changes to red in a rotation speed region (red zone) that becomes the engine rotation limit. The ambient display described above can show the change in the rotation speed of the engine in detail to the viewer not only by the change in the emission color but also by the moving speed of the high brightness spot 15. The moving speed of the high-intensity spot 15 may change continuously according to the rotational speed of the engine, or may change stepwise.

  When the regenerative brake is operating in the engine, the ambient light emission region 13 emits blue-green light. And the high-intensity spot 15 rotates counterclockwise (left) which becomes the reverse direction at the time of the above-mentioned normal driving | running | working (refer broken line arrow of FIG. 4). The above ambient display can show the operation of the regenerative brake to the viewer in detail not only by the change in the emission color but also by the change in the moving direction of the high brightness spot 15. The moving speed of the high brightness spot 15 may be increased according to the amount of energy to be regenerated, or may be constant regardless of the amount of energy regenerated.

<Vertical movement pattern>
The up-and-down movement pattern shown in FIG. 5 is obtained from the fuel consumption information related to the vehicle fuel consumption, the warning information before and after the presence of other vehicles located in the front-rear direction of the host vehicle, the operation information of Adaptive Cruise Control (ACC), etc. Displayed when acquired by the unit 53 (see FIG. 3). Due to the movement of the high-intensity spot 15 due to the vertical movement pattern, the viewer is notified of fuel efficiency information indicating whether the fuel efficiency is good or warning information for warning that the distance between the front and rear vehicles has decreased. In the vertical movement pattern, a set of high-intensity spots 15 are displayed in the ambient light emitting region 13 symmetrically with respect to the center line CL_v extending in the vertical direction. Each high-intensity spot 15 moves along the outer edge of the main display area 10 from one of the upper end and the lower end of the ambient light emitting area 13 to the other. Hereinafter, specific examples of the vertical movement pattern will be shown.

  When the distance between the host vehicle and the preceding vehicle indicated by the warning information is less than a predetermined distance, the ambient light emitting area 13 emits red light. And the high-intensity spot 15 moves rapidly from the upper end to the lower end of the ambient light emitting region 13 (see the broken line arrow in FIG. 5). The ambient display as described above is not only a warning of a decrease in the inter-vehicle distance by a change in the light emission color, but an event that is a warning target is generated in front of the vehicle by the high-intensity spot 15 moving from above to below. It may alert the viewer that

  When the current fuel consumption indicated by the fuel consumption information is better than a predetermined threshold value, the ambient light emitting region 13 emits blue-green light. The high-intensity spot 15 moves slowly from the lower end to the upper end of the ambient light emitting region 13 (see the solid line arrow in FIG. 5). On the other hand, when the current fuel consumption indicated by the fuel consumption information is worse than a predetermined threshold, the ambient light emission region 13 emits yellow light. And the high-intensity spot 15 moves from the lower end to the upper end of the ambient light emitting region 13 at a faster moving speed than when the fuel efficiency is good. The above ambient display can show the current fuel efficiency in detail to the viewer not only by the change in the emission color but also by the moving speed of the high brightness spot 15. The two threshold values described above may be the same value or different values.

  When the vehicle speed is controlled by the operation of the ACC device, the ambient light emitting region 13 emits white green light. The high-intensity spot 15 moves slowly from the lower end to the upper end of the ambient light emitting region 13 (see the solid line arrow in FIG. 5). The above ambient display may suggest to the viewer that the operation of the ACC, which is difficult to recognize only by the change of the luminescent color, is easily understood by the viewer by moving from the lower side to the upper side of the high-intensity spot 15 that causes the vehicle to move forward. it can.

<Left / right and diagonal movement patterns>
In the left-right movement pattern shown in FIG. 6 and the diagonal movement pattern shown in FIG. Displayed when The right and left warning information is notified to the viewer by the movement of the high-intensity spot 15 by the left-right movement pattern and the diagonal movement pattern. In the left-right movement pattern shown in FIG. 6, a set of high-intensity spots 15 are displayed in the ambient light emitting region 13 symmetrically in the vertical direction across the center line CL_h extending in the left-right direction. Each high-intensity spot 15 moves along the outer edge of the main display area 10 from one of the right end and the left end of the ambient light emitting area 13 to the other. In the oblique movement pattern shown in FIG. 7, each high-intensity spot 15 extends along the outer edge of the main display area 10 from the upper right to the lower left or from the upper left to the lower right of the ambient light emitting area 13. Move.

  For example, as shown in FIG. 6, when another vehicle approaches from the right side of the host vehicle, the ambient light emission region 13 changes the light emission color from yellow to red. The high-intensity spot 15 moves from the right end to the left end of the ambient light emission region 13 (see the solid line arrow in FIG. 6). Similarly, when another vehicle approaches from the left side of the host vehicle, the high-intensity spot 15 moves from the left end to the right end of the ambient light emitting region 13 (see the broken line arrow in FIG. 6).

  For example, as shown in FIG. 7, when the lane is changed in the right direction, if the distance between the host vehicle and the preceding vehicle located in the right front is less than a predetermined distance, the ambient light emitting region 13 is changed from yellow Change the emission color to red. Then, the high brightness spot 15 moves from the upper right to the lower left of the ambient light emitting region 13 (see the solid line arrow in FIG. 7). Similarly, when changing the lane in the left direction, when the distance between the host vehicle and the following vehicle located at the left rear is less than a predetermined distance and the course of the following vehicle is hindered, the high brightness spot 15 is The ambient light emission region 13 moves from the lower left to the upper right (see the broken line arrow in FIG. 7).

  Further, when an obstacle is present on the right front side of the host vehicle, the high-intensity spot 15 moves from the upper right to the lower left in the ambient light emitting region 13 (see the solid line arrow in FIG. 7). In the above ambient display, not only a warning of other vehicles or the like is performed simply by a change in emission color, but also the position of other vehicles or obstacles to be warned can be notified to the viewer by the movement of the high-intensity spot 15. it can.

  In addition to the light emission pattern obtained by combining the high-intensity spot 15 having different brightness and the normal light emitting unit 14, the vehicle display device 100 has a light emission pattern only with the light emitting unit 17 having substantially uniform brightness. Multiple settings are made. The luminance of the light emitting unit 17 may be equivalent to the high luminance spot 15, may be equivalent to the normal light emitting unit 14, or may be set between these. Hereinafter, the light emission pattern by the light emission part 17 is demonstrated based on FIG. 8 and 9, the light emission of the light emitting portion 17 is schematically shown by dots.

<All area extinction lighting pattern>
In the entire area extinction lighting pattern shown in FIG. 8, the entire ambient light emitting region 13 blinks or lights up as the light emitting unit 17. For example, when the host vehicle is closer to the vehicle ahead than the distance between vehicles warned by the vertical movement pattern, the ambient light emitting area 13 blinks red to warn of a collision. At this time, the ambient light emitting region 13 gradually changes in brightness from a light-off state to a light-on state (fade-in blinking).

  Moreover, when some event that should be warned occurs, the ambient light emission region 13 maintains the lighting state in red. In addition, when any indicator is displayed on the main display area 10 or each of the display areas 11 and 12, the ambient light emission area 13 maintains an orange lighting state.

  Further, when a shift up and shift down operation is input, the ambient light emitting region 13 emits light for a very short time. Specifically, when a shift-up operation is input, the ambient light emission region 13 blinks in blue green. Similarly, when a downshift operation is input, the ambient light emitting area 13 blinks yellow.

<Partial extinction lighting pattern>
In the partial light-off pattern shown in FIG. 9, a part of the ambient light emission region 13 blinks as the light emitting unit 17. For example, when the right direction indicator is operating, the right half of the ambient light emitting area 13 blinks green. Similarly, when the left direction indicator is operating, the left half range of the ambient light emitting area 13 blinks green. In FIG. 9, the range of the left half in the light-off state is schematically shown by dots with a higher density than the light emitting unit 17.

  Further, when an obstacle around the vehicle is detected by the sonar during parking, a part of the ambient light emitting area 13 blinks. Specifically, when an obstacle is detected behind the vehicle, the lower half range of the ambient light emitting area 13 blinks yellow. Similarly, when an obstacle is detected in front of the vehicle, the upper half range of the ambient light emitting area 13 blinks yellow.

  In addition, the part turned off in the ambient light emitting region 13 may not be an annular half, and may be, for example, a quarter range or a third range.

  A display control process for causing the ambient light emission region 13 to emit light in the various light emission patterns as described above will be described below with reference to FIG. The display control process is started by the meter control circuit 50 when, for example, the ignition of the vehicle is turned on. This display control process is continued by the meter control circuit 50 until the ignition of the vehicle is turned off.

  In S101, the vehicle information output to the in-vehicle LAN 91 is acquired by the information acquisition unit 53 (see FIG. 3), and the process proceeds to S102. In S102, based on the vehicle information acquired in S101, the light emission pattern displayed on the ambient light emission area | region 13 is determined, and it progresses to S103. In S103, in order to display the light emission pattern determined in S102 in the ambient light emission region 13, control of the ambient display pixel 34 (see FIG. 2) is started. Specifically, in S103, the liquid crystal control unit 51 generates gradation data of the ambient display pixel 34, and drives the ambient display pixel 34 based on the gradation data. And it returns to S101 again and repeats the above-mentioned process.

  In the first embodiment described so far, the ambient light emitting region 13 emits light by the light incident on the acrylic cylinder 60 from the ambient display pixel 34. With this configuration, the ambient light emitting region 13 can display the high brightness spot 15 having a contrast difference with the normal light emitting unit 14 and can move the high brightness spot 15 with a predetermined movement. Therefore, the viewer can more specifically perceive what has happened due to the movement of the high-intensity spot 15 after perceiving a certain change in the situation by simple light emission of the ambient light emitting region 13.

  In addition, the high-intensity spot 15 can move in the vertical direction and the horizontal direction by the form of the ambient light emitting region 13 formed so as to surround the main display region 10. Therefore, even when the ambient light emission region 13 is visually recognized in the peripheral visual field, the movement of the high brightness spot 15 is easily perceived by the viewer. According to the above, the vehicle display device 100 can transmit detailed information to the viewer by ambient display.

  Furthermore, in the first embodiment, the high-intensity spot 15 is displayed brighter than the normal light emitting unit 14, thereby ensuring a contrast difference between them. Therefore, the viewer can easily perceive the movement of the high-intensity spot 15 even when viewing with the peripheral visual field. As a result, detailed information transmission by ambient display can be realized with high certainty.

  In the first embodiment, the orientations of the display screen 32, the incident surface 61, and the exit surface 62 are aligned with each other. Therefore, refraction when the light emitted from the ambient display pixel 34 passes through the incident surface 61 and the emission surface 62 is suppressed. For this reason, the image that is luminescently displayed on the ambient display pixel 34 can be projected onto the exit surface 62 without blurring. As described above, the moving high brightness spot 15 is clearly displayed in the ambient light emitting region 13.

  In addition, in the first embodiment, the directions of the inner peripheral wall surface 64 and the outer peripheral wall surface 65 of the light guide unit 63 are aligned with each other, so that the light of the image displayed on the ambient display pixel 34 travels through the light guide unit 63. Distortion can be avoided. Therefore, the image that is emitted and displayed on the ambient display pixel 34 can be projected onto the exit surface 62 without blurring. As a result, the movement of the high-intensity spot 15 displayed in the ambient light emitting region 13 becomes clearer.

  Furthermore, in the first embodiment, since the emission surface 62 is located on the outer peripheral side of the main display region 10 with respect to the incident surface 61, the ambient light emitting region 13 formed by the emission surface 62 is displayed on the display screen 32 as an ambient display pixel. It becomes larger than the area where 34 is arranged. Thus, when the ambient light emitting region 13 acquires a presence on the display, the high-intensity spot moving in the region 13 is more easily perceived by the viewer. Therefore, detailed information is more easily transmitted to the viewer.

  In addition, in the first embodiment, the plurality of high-intensity spots 15 move in the ambient light emission region 13 in conjunction with each other. With such a display, the viewer can more easily perceive the peripheral visual field. Therefore, the certainty of detailed information transmission by ambient display can be further improved.

  In addition, the rotational movement of the high-intensity spot 15 by the rotational movement pattern can cause the viewer to create an image of the output shaft of the internal combustion engine or motor. Therefore, the ambient light emitting area 13 can notify the viewer of detailed information in an easily understandable manner by displaying the operation information of the traveling engine by the rotational movement of the high brightness spot 15.

  In addition, the movement of the high-intensity spot 15 by the vertical movement pattern can cause the viewer to move in the front-rear direction of the vehicle. Therefore, by displaying the fuel consumption information, the warning information before and after, the ACC operation information, and the like by moving the high brightness spot 15 up and down, the ambient light emitting region 13 can notify the viewer of detailed information in an easily understandable manner.

  Similarly, the movement of the high-intensity spot 15 according to the left-right and oblique movement patterns can guide the driver's attention around the vehicle. Therefore, by setting the movement start position of the high-intensity spot 15 so as to correspond to the direction of the other vehicle or the like that is the target of warning, the ambient light emitting region 13 performs warning that is easy for the viewer to understand through the peripheral visual field be able to.

  In the first embodiment, the main display area 10 corresponds to the “display area” recited in the claims, the ambient light emission area 13 corresponds to the “light emission area” recited in the claims, and the normal light emission. The part 14 corresponds to “another part” described in the claims. Further, the display device 30 corresponds to the “display means” described in the claims, the ambient display pixel 34 corresponds to the “opposing pixel” described in the claims, and the liquid crystal control unit 51 corresponds to the claims. It corresponds to the “control means” described in 1. The information acquisition unit 53 corresponds to “information acquisition means” described in the claims, the acrylic cylinder 60 corresponds to “translucent member” described in the claims, and the high brightness spot 15 claims. It corresponds to the “specific light emission spot” described in the range.

(Second embodiment)
The second embodiment of the present invention shown in FIG. 11 is a modification of the first embodiment. The ambient light emitting area 213 in the second embodiment is formed in a U shape surrounding the main display area 210. In order to form such an ambient light emitting region 213, the vehicular display device 200 of the second embodiment includes a translucent member 260 corresponding to the acrylic cylinder 60 (see FIG. 1) of the first embodiment.

  The translucent member 260 is formed of an acrylic plate material curved in a U shape. The translucent member 260 has an entrance surface 261, a light guide 263, and an exit surface 262, similar to the acrylic cylinder 60 (see FIG. 1). The incident surface 261 extends in a U shape along the outer edge of the main display area 210. The light guide unit 263 is erected substantially perpendicular to the display screen 32. Due to the shape of the light guide 263, the exit surface 262 has substantially the same shape as the entrance surface 261 and overlaps the entrance surface 261 in the display direction SD (see FIG. 2). An ambient light emitting region 213 surrounding the main display region 210 in a U shape is formed by the emission surface 262 described above.

  As in the second embodiment described so far, even if the ambient light emitting region 213 is not a continuous annular shape, the high brightness spot 15 is displayed in the ambient light emitting region 213 that emits light, and the high brightness spot 15 is displayed. Display to be moved is possible. Therefore, the vehicular display device 200 has the same effect as the first embodiment, and can convey detailed information to the viewer by ambient display.

  In addition, in the second embodiment, due to the shape of the light guide unit 263 perpendicular to the display screen 32, the light incident on the incident surface 261 proceeds in the display direction SD (see FIG. 2) without bleeding, and enters the exit surface 262. Can be projected. Therefore, the movement of the high-intensity spot 15 displayed in the ambient light emission region 213 becomes clearer.

  In the second embodiment, the main display area 210 corresponds to the “display area” recited in the claims, and the ambient light emission area 213 corresponds to the “light emission area” recited in the claims.

(Third embodiment)
The third embodiment of the present invention shown in FIG. 12 is another modification of the first embodiment. The ambient light emitting region 313 in the third embodiment has a partially interrupted shape while surrounding the main display region 10 in an annular shape. In order to form such an ambient light emitting region 313, the vehicle display device 300 includes a translucent member 360 corresponding to the acrylic cylinder 60 (see FIG. 1) of the first embodiment.

  The translucent member 360 is formed by combining a plurality (four) of acrylic plate materials curved in an arc shape. The translucent member 360 has an entrance surface 361, a light guide 363, and an exit surface 362, like the acrylic cylinder 60 (see FIG. 1). The incident surface 361 is formed in an arc shape extending along the outer edge of the main display region 10. The light guide 363 is erected substantially perpendicular to the display screen 32. Due to the shape of the light guide 363, the exit surface 362 has substantially the same shape as the entrance surface 361, and is positioned so as to overlap the entrance surface 361 in the display direction SD (see FIG. 2). An ambient light emitting region 313 that surrounds the main display region 10 in an annular shape while being partially interrupted is formed by the emission surface 362 described above.

  As in the third embodiment described so far, even if the ambient light emitting region 313 is partially interrupted, the high brightness spot 15 is displayed in the ambient light emitting region 313 that emits light, and the high brightness spot 15 is moved. The display to be made is possible. Therefore, the vehicle display device 300 has the same effect as that of the first embodiment, and can convey detailed information to the viewer through ambient display.

  In the third embodiment, the ambient light emission region 313 corresponds to the “light emission region” recited in the claims.

(Fourth embodiment)
The fourth embodiment of the present invention shown in FIG. 13 is yet another modification of the first embodiment. In the vehicle display device 400 according to the fourth embodiment, an ambient light emitting region 413 substantially the same as that of the first embodiment is formed by the acrylic cylinder 60. In the ambient light emitting region 413, a plurality of normal light emitting portions 414 and low luminance spots 415 are displayed. In FIG. 13, the light emission of the low brightness spot 415 is schematically shown by dots.

  The low-intensity spot 415 is displayed in a shape extending in a strip shape along the outer edge of the main display area 10, similarly to the high-intensity spot 15 (see FIG. 4 and the like) in the first embodiment. The low brightness spot 415 emits light in dark red, for example. On the other hand, the normal light emitting unit 414 emits light, for example, bright red. The low-intensity spot 415 has a contrast difference with the normal light emitting unit 414 by shining darker than the normal light emitting unit 414. The area of the low brightness spot 415 is smaller than the area of the normal light emitting unit 414. The low-intensity spot 415 moves in the ambient light emission region 413 with a movement corresponding to the vehicle information. The low-intensity spot 415 in the fourth embodiment can be moved in the vertical direction, the horizontal direction, and the diagonal direction in addition to the rotational movement.

  Even in the display in which the low luminance spot 415 having a lower luminance than the normal light emitting unit 414 is moved as in the fourth embodiment described so far, the viewer can observe the movement of the low luminance spot 415 in the peripheral visual field. Can perceive. Therefore, the vehicular display device 400 has the same effect as that of the first embodiment, and the viewer can be notified of what has actually occurred by the movement of the low luminance spot 415 in the ambient display.

  In the fourth embodiment, the low brightness spot 415 corresponds to a “specific light emission spot” recited in the claims.

(Other embodiments)
Although a plurality of embodiments according to the present invention have been described above, the present invention is not construed as being limited to the above embodiments, and can be applied to various embodiments and combinations without departing from the gist of the present invention. can do.

  In the first embodiment, the contrast difference between the high-intensity spot and the normal light emitting unit is ensured by the brightness difference and the color difference. In the fourth embodiment, the contrast difference between the low brightness spot and the normal light emitting portion is ensured by the brightness difference between them. As described above, the light emission colors of the specific light emission spot and the normal light emission part can be appropriately changed as long as a contrast difference that can be identified by a viewer is secured.

  The above contrast difference will be described in more detail with reference to FIG. When there is a contrast difference between the emission color of the specific emission spot and the emission color of the normal emission part, each emission color in the color space of the L * a * b * color system defined by the International Commission on Illumination (CIE) Are plotted at different coordinates. Specifically, when there is a color difference between two luminescent colors, the coordinates of each luminescent color are different in at least one of a * and b * values. In addition, when there is a luminance difference between the two emission colors, the coordinates of each emission color have different L * values. As the coordinate positions of the two luminescent colors are separated from each other in the color space, the contrast difference increases.

  For example, the two emission colors may be located on the coordinate axis of L *. In this case, each emission color is an achromatic color. Alternatively, one emission color may be positioned on the L * coordinate axis, and the other emission color may be positioned off the L * coordinate axis. In this case, one emission color is an achromatic color and the other emission color is a chromatic color. As described above, a contrast difference can be ensured even if at least one of the emission colors is an achromatic color. Furthermore, in the form of displaying the low brightness spot as in the fourth embodiment, a color difference may be provided between the low brightness spot and the normal light emitting unit.

  Also, the contrast difference between the two luminescent colors is measured by measuring the brightness (L * value) and chromaticity (values of a * and b *) of the specific luminescent spot and the normal light emitting part with an instrument such as a color luminance meter. Can be evaluated. It is desirable that the coordinate positions of the two emission colors be separated by a predetermined distance or more. This predetermined distance can be defined based on a MacAdam ellipse that represents a color difference identification limit by the viewer.

  In the above embodiment, the incident surface 61 and the exit surface 62 are formed in a planar shape along the display screen 32. However, as long as the distortion of the display image displayed in the ambient light emission region is within an allowable range, the shapes of the entrance surface and the exit surface may be inclined with respect to the display screen, or may not be planar. Also good. In addition, the thickness of the light guide portion may not be constant as long as the distortion of the display image is within the allowable range. In addition, the inclination of the light guide with respect to the axis along the display direction SD is not limited to 45 ° as in the first embodiment, and may be changed as appropriate. Furthermore, the light guide may be omitted.

  In the above-described embodiment, the shape of the ambient light emitting region that has been formed into an annular shape or a U shape may be changed as long as the shape surrounds the main display region. For example, an ambient light emitting region having an elliptical shape, a triangular shape, or a rectangular shape may be formed. In addition, the position of the ambient light emission region may not be the center of the vehicle display device. Furthermore, a plurality of ambient light emitting areas may be provided in the vehicle display device.

  In the said embodiment, the material of the "translucent member" which was an acrylic resin may be changed suitably. For example, polycarbonate resin, glass, or the like may be employed as the material of the “translucent member”. Further, the “translucent member” may not be colorless and transparent, and may be colored in a specific color.

  In the above-described embodiment, the plurality of high-intensity spots 15 are moved in conjunction with each other while maintaining a distance from each other. However, the plurality of high-intensity spots may move differently. For example, a plurality of high-intensity spots may move while changing the shape and emission color in different rotation directions. Furthermore, the number of high-intensity spots that are simultaneously displayed in the ambient light emission region can be changed as appropriate. Moreover, the light emission pattern which moves a high-intensity spot in a normal light emission part is not limited to what was mentioned above.

  In the above embodiment, if the thickness of the acrylic cylinder 60 is about 10 millimeters, the number of ambient display pixels 34 arranged in the thickness direction of the acrylic cylinder 60 is about 10 to 30, for example. The number of “opposing pixels” facing the incident surface may be adjusted as appropriate. However, as the density of the “opposing pixel” increases, it becomes possible to project a dense display image on the ambient light emitting region.

  In the above embodiment, the configuration of the “display unit” in which the liquid crystal panel 31 and the backlight 40 are combined may be changed as appropriate. For example, the liquid crystal panel may be configured to be capable of only monochromatic light emission display. Furthermore, a display panel that emits and displays an image by a self-luminous element such as an organic light-emitting diode (OLED) may be used as the “display unit”. Similar to the liquid crystal panel, the OLED can display various images in full color by controlling the gradation value of each sub-pixel based on the gradation data acquired from the “control unit”.

  In the above embodiment, the meter control circuit 50 having the liquid crystal control unit 51 and the information acquisition unit 53 as functional blocks may be provided by hardware and software different from those described above, or a combination thereof. For example, the meter control circuit described above may be configured by an analog circuit that performs a predetermined function without depending on a program.

10, 210 Main display area (display area), 13, 213, 313, 413 Ambient light emitting area (light emitting area), 14,414 Normal light emitting part (other light emitting parts), 15 High brightness spot (specific light emitting spot), 415 Low luminance spot (specific light emission spot), 30 display (display means), 33 pixels, 34 ambient display pixels (opposing pixels), 51 liquid crystal control section (control means), 53 information acquisition section (information acquisition means), 60 acrylic Cylindrical (translucent member), 260, 360 Translucent member, 61, 261, 361 Incident surface, 62, 262, 362 Ejection surface, 63, 263, 363 Light guide unit, 64 Inner peripheral wall surface, 65 Outer peripheral wall surface, 100, 200, 300, 400 Display device for vehicle

Claims (11)

A vehicle mounted on a vehicle and formed so that a light emitting region (13, 213, 313, 413) that emits light when it emits light surrounds a display region (10, 210) that displays vehicle information related to the vehicle. Display device,
A display means (30) having a display screen (32) and having a plurality of pixels (33) for emitting and displaying an image arranged along the display screen;
Incident surface facing the portion of the plurality of pixels (61,261,361), an exit surface forming the luminous area by emitting light incident from the entering morphism surface (62,262,362), and the light guide portion that extends toward the exit surface from the entrance surface has a (63,263,363), and the pre-Symbol exit surface than the incident surface is located at the outer periphery of the display area, and, wherein an inner circumferential wall surface (64) of the translucent member that is covered by the light-shielding of the light shielding layer (66) located on the display region side (60,260,360) in the light guide portion inclined to the outer peripheral side,
Information acquisition means (53) for acquiring the vehicle information;
Based on the vehicle information acquired by the information acquisition means, by controlling the light emitted from the opposing pixel (34) facing the incident surface, the light emitting area in a light emission pattern corresponding to the vehicle information Control means (51) for emitting light,
The control means displays the specific light-emitting spot (15, 415) having a contrast difference with the other light-emitting portions (14, 414) in the light-emitting region that emits light by controlling the counter pixel. And the specific light emission spot is moved by a movement corresponding to the acquired vehicle information. The incident surface is formed in a planar shape along the display screen,
The vehicle display device according to claim 1, wherein the emission surface is formed in a planar shape along the incident surface. Before the inner circumferential wall of the Kishirubeko section to claim 1 or 2 and the inner peripheral wall surface at the light-guiding portion, characterized in that it is formed along the outer peripheral wall surface (65) located on the opposite side The vehicle display device described.   The said specific light emission spot (15) has a contrast difference between the said other light emission part by shining brighter than the said other light emission part, The Claim 1 characterized by the above-mentioned. The vehicle display device described. The specific luminous spot (415), by shining darker than the other light emitting portion, in any one of claims 1 to 3, characterized in that it has a contrast difference between the other light emitting portion The vehicle display device described.   The said specific light emission spot (15) has a contrast difference between the said other light emission part by the color difference provided between the said other light emission parts, The any one of Claims 1-5 characterized by the above-mentioned. The vehicle display device according to one item. In the light emitting area, a plurality of the specific light emitting spots are displayed,
The vehicular display device according to any one of claims 1 to 6, wherein the plurality of specific light emission spots move in the light emission region by movement corresponding to the acquired vehicle information. The information acquisition means acquires operation information relating to a traveling engine mounted on the vehicle as the vehicle information,
The said control means controls the said opposing pixel so that the said specific light emission spot may rotate in the circumferential direction around the said display area, when the said operation information is acquired by the said information acquisition means. Item 8. The vehicle display device according to any one of Items 1 to 7. The information acquisition means acquires fuel consumption information related to fuel consumption of the vehicle as the vehicle information,
Wherein,
Based on the vehicle information acquired by the information acquisition means, determine one light emission pattern from a plurality of light emission patterns set,
When the fuel consumption information is acquired by the information acquisition means, so that the specific luminous spot in the vertical direction of the display area is moved, any of claims 1 to 8, wherein the controller controls the counter pixel The vehicle display device according to claim 1. The information acquisition means acquires warning information before and after indicating the presence of another vehicle positioned in the front-rear direction of the vehicle as the vehicle information,
Wherein,
Based on the vehicle information acquired by the information acquisition means, determine one light emission pattern from a plurality of light emission patterns set,
When the front and rear warning information is acquired by the information acquisition means, so that the specific luminous spot in the vertical direction of the display area is moved, claim 1 to 9, wherein the controller controls the counter pixel The vehicle display device according to any one of the above. The information acquisition means acquires left and right warning information indicating the presence of another vehicle located in the left-right direction of the vehicle as the vehicle information,
Wherein,
Based on the vehicle information acquired by the information acquisition means, determine one light emission pattern from a plurality of light emission patterns set,
Claim when warning information of the left and right is acquired by the information acquisition means, the specific luminous spots in the left-right direction or an oblique direction of the display area to move, characterized by controlling the counter pixel The vehicle display device according to any one of 1 to 10.

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