JP4761551B2 - In-vehicle meter display device - Google Patents

Description

  The present invention relates to an on-vehicle meter display device.

  In recent years, with the enhancement of functions installed in vehicles, a matrix type display in which pixels are arranged in a matrix so that various auxiliary information can be displayed on the meter display unit in addition to basic functions such as vehicle speed. There are many requests that want to arrange (patent document 1). Auxiliary information displayed on such a matrix type display includes, for example, simple information such as a clock, warning information such as warnings, and further vehicle control information such as travel guidance information and cruise control. The content is expected to increase further. However, since it is necessary to always display basic functions such as vehicle speeds stipulated by laws and regulations on the meter, it is necessary to install matrix type indicators in areas other than the basic function display area in the meter display section. is there.

  In recent years, improvement in design has been demanded for displays arranged in such a limited area. One method is to add dynamic design to the display. In Patent Document 2, a display is arranged in parallel with the dial of the meter display unit, and this display can be moved back and forth. Thus, there is a disclosure of a technology that realizes a unique design.

JP 2002-1104056 A JP 2005-324747 A JP-A-8-313896

  However, when an area other than the display area of the basic function is secured in the meter display section, the empty area is already limited, so a matrix type display with a relatively large display surface so that a large amount of auxiliary information can be displayed. It is difficult to arrange the containers, and there are also problems in terms of design and cost. For example, when a relatively large matrix type display is placed in the middle of a twin-lens meter, the two dials (speedometer and tachometer) are too far apart, leaving a sense of incongruity and degrading the design. End up.

  Even if a matrix-type display device can be placed in such an empty area, the display surface is restricted by the display area of the basic function and becomes portrait or landscape. However, there is a problem that display contents are limited. For example, when displaying the direction of travel of a vehicle, it is desirable to display it vertically in the direction of travel, and for displaying warning characters and images taken by infrared cameras (night view) in landscape orientation However, although it is easy for the driver to visually recognize, when the display surface is set to be vertically long or horizontally long, either one cannot be displayed.

  Further, since the display surface of the display device arranged in the meter display unit is generally arranged in parallel with the display surface of the meter display unit, an arrow appears in the display surface of the display device. When such a direction indication image is displayed, there is a problem that it is difficult to intuitively grasp whether the image indicates the front-rear direction of the vehicle or the vertical direction of the vehicle. In particular, when the front-rear direction of the vehicle is represented on the display surface, depending on the country, it may be easy to recognize a downward direction indication image with respect to the display surface, or conversely, an upward direction indication image may be easy to recognize. For this reason, it may be necessary to change the display of the direction indication image depending on the country. These problems are also present in Patent Document 2.

  In recent years, liquid crystal displays such as STN (Super Twisted Nematic), TN (Twisted Nematic), and TFT (Thin Film Transistor) are often used as matrix type displays. However, since these liquid crystal displays require a separate light source such as a backlight, the thickness of the display is increased, and as shown in Patent Document 3, the liquid crystal display has a large viewing angle dependency. Therefore, the contrast is lowered when viewed from a direction other than the specific direction. When dynamic designability is imparted, there is a possibility that the visibility may be deteriorated depending on the case because it may be accompanied by a change in the viewing direction.

  The present invention has been made in view of the above problems, and while ensuring the visibility of the basic function display of the meter display unit, the display content is highly visible within a limited display area other than the basic function display. It is an object to provide a vehicle-mounted meter display device that can be displayed with an excellent design.

In order to solve the above problems, the first of the vehicle-mounted meter display device of the present invention is:
And guidelines for instructing meter readings at a position on the scale, an analog meter unit for displaying the analog Gauge and a pointer driving unit for driving the position corresponding to finger needle meter indicated value,
In the visual recognition direction of the analog meter portion, a display device arranged so that the display content can be visually recognized in a form overlapping the analog meter portion,
A display rotation mechanism that mechanically rotates the display itself within the display surface of the display;
It is characterized by providing.

  According to the first configuration of the present invention, the display is provided so as to be visible from the viewing direction of the analog meter section, and the display can be rotated, so that the basic function display of the analog meter section is not hindered. The display on the display becomes possible. In addition, it is possible to change the appearance of the display image by rotation. For example, when the display image is an arrow or the like indicating the traveling direction of the vehicle, the direction instructed can be changed by rotating the arrow. .

  In the first vehicle-mounted meter display device of the present invention, the display device can display a plurality of display images by switching, and the display device rotation mechanism can rotate the display device in accordance with the display image to be switched. According to this configuration, when there is display content with different display length directions (for example, portrait or landscape), the display device can be rotated according to the display length direction of the display content and displayed in an appropriate orientation for easy viewing. .

  In the first on-vehicle meter display device of the present invention, the display rotation mechanism is capable of holding the display at a plurality of angular positions within a rotatable range around the axis line, and also has a plurality of display images and angular positions. And the display rotation mechanism rotates the display so that the angular position of the display corresponds to the type of display image to be displayed on the display. Can do. According to this configuration, since the correspondence between the display contents and the angular position is determined in advance, the display rotation mechanism only needs to rotate the display according to the determined correspondence. Further, since the angular position is determined in advance, the display rotating mechanism only needs to perform a reciprocating motion between the determined angular positions, and the configuration can be simplified.

  In the first vehicle-mounted meter display device of the present invention, the display unit includes display pixels along each of the first side direction of the quadrilateral display surface and the second side direction adjacent to the first side direction. They are arranged in a matrix and the length of the first side is different from the length of the second side, or the number of pixels arranged in the first side direction and the number of pixels arranged in the second side direction Can be used as different from each other. Since the display surface can be rotated according to the display image, the display surface shape and pixel arrangement can be changed by configuring the display surface of the display device to be different in the vertical and horizontal directions, or the pixel arrangement to be different in the vertical and horizontal directions. It can be set according to the display image, and can be displayed in a direction suitable for the display image.

  In the first vehicle-mounted meter display device of the present invention, the display rotation mechanism includes a display, a first position where the first side of the display surface is in the vertical direction, and a second position where the second side is in the vertical direction. Can be rotated between. According to this configuration, the display rotating mechanism can be a reciprocating mechanism between two positions, so that the configuration can be further simplified.

  In the vehicle-mounted meter display device according to the first aspect of the present invention, the display surface has a rectangular shape having a first side as a long side, and the display device has its own vehicle at a first position where the long side is in the vertical direction. The direction symbol of the driving guidance can be displayed as an image. The direction indication image for instructing the traveling direction of the host vehicle is displayed with an arrow or the like displayed in the vertical direction on the screen. According to the above configuration, such a display image that is long in the vertical direction can be displayed on a vertically long display surface suitable for the image display.

  In the first of the on-vehicle meter display device of the present invention, the display surface has a rectangular shape with the first side as the long side, and the display unit displays the character information at the second position where the long side is in the horizontal direction. Can be displayed as an image. Character information is easier to grasp if it is displayed in landscape orientation. According to the above configuration, such a display image that is long in the horizontal direction can be displayed on a horizontally long display screen suitable for the image display.

  The vehicle-mounted meter display device according to the first aspect of the present invention includes a night-vision image capturing unit that captures a night-vision image in front of the vehicle, and the display surface has a rectangular shape with the first side as a long side, Can display a night vision image photographed by the night vision image photographing means at a second position where the long side is in the horizontal direction. The night vision image is easier to recognize road information displayed on the screen when displayed in the vehicle width direction, that is, in landscape orientation. According to the above configuration, such a display image that is long in the horizontal direction can be displayed on a horizontally long display screen suitable for the image display.

  In the first vehicle-mounted meter display device of the present invention, it is possible to have a projecting and synthesizing means for visually recognizing the image of the analog meter unit and the image of the display in a form of projection and synthesis. According to this configuration, the image of the analog meter unit and the image of the display unit are superimposed and synthesized on the projection surface, so that one part is hidden behind the other and there is no invisible part, and both images are recognized. It becomes possible to do.

  In the first of the on-vehicle meter display device of the present invention, the projection combining means is arranged in the viewing direction of the analog meter unit, the front side thereof is the image projection surface of the display, and the analog meter unit is imaged in the viewing direction. A perspective projection member that can be seen through on the projection surface is provided. According to this configuration, the fluoroscopic projection member allows the analog meter unit to be visually recognized as a fluoroscopic image, the image of the display device can be recognized as a projected image, and both the fluoroscopic image and the projected image are superimposed and synthesized. Can be recognized from the viewing direction of the analog meter section.

  In the first of the on-vehicle meter display device of the present invention, the display and the display rotating mechanism are disposed in front upper part of the analog meter unit, and the perspective projection member is inclined to an intermediate position between the display and the analog meter unit. It can be configured as a half mirror to be arranged. By using a half mirror, the above superimposed composite image can be easily realized.

  In the first vehicle-mounted meter display device of the present invention, the display device can be a self-luminous display device in which display pixels arranged in a matrix form are each a light emitting unit. According to this configuration, even if the display content changes, there is no decrease in contrast based on viewing angle dependence, so even when the display is rotated, display is always easy to see without reducing contrast. it can. Furthermore, since it is self-luminous, an auxiliary light source such as a backlight is unnecessary, so that the number of parts can be reduced and the cost can be reduced. Further, since the installation of the auxiliary light source is unnecessary, the display device itself can be formed thin, and mounting around the analog meter portion is facilitated.

  In the first vehicle-mounted meter display device of the present invention, the self-luminous display can be an organic EL display or an inorganic EL display. By using a self-luminous display with high contrast such as EL, when only the image display area is turned on and the display area other than the image display area is turned off, the other display areas are metered on the projected image. This makes it impossible for the viewer to recognize, and even the contour of the display surface cannot be recognized, so that a floating feeling as if the display image displayed on the display device is floating can be produced. In the case of a conventional liquid crystal display, since the contrast is poor, it appears that light is emitted slightly outside the image display area. For this reason, the boundary of the display device is easily recognized, and the presence of the display device is easily recognized by the meter viewer, so that the floating feeling cannot be produced and the appearance is poor.

  In the vehicle-mounted meter display device according to the first aspect of the present invention, it is possible to include a lighting control unit that turns off the light-emitting unit that forms the display pixel while the display is rotated by the display rotating mechanism. If the display is completely turned off during rotation, the meter viewer cannot visually recognize the presence of the display. Further, when the image is displayed after the rotation is completed, a unique impression can be given as if it suddenly rose. Therefore, a meter display device having a novel dynamic design can be realized.

  In the first of the on-vehicle meter display device of the present invention, the analog meter unit includes a pair of analog meter units arranged adjacent to each other in the horizontal direction, and the display content of the display unit can be visually recognized between the analog meter units. . In the case of a vehicle-mounted meter display device, a speedometer and a tachometer are often arranged adjacent to each other, and in this case, a wide vertically long space is created between the meters. By utilizing this space, the display can be made as large as possible, and the amount of display information and its visibility can be increased.

  In the first vehicle-mounted meter display device of the present invention, the rotation axis of the display can be coupled to the back side of the display at a position corresponding to the center of gravity of the display surface. According to this configuration, the rotation area of the display can be made as small as possible, and the entire meter display device can be made compact.

  In the first vehicle-mounted meter display device of the present invention, a signal line for sending a display image display data signal to the display can be provided inside the rotary shaft. According to this configuration, since the signal line for rotationally driving the display device can be hidden from the outside, the design is not impaired.

Next, in order to solve the above problems, automotive meter display equipment to which the invention relates,
An analog meter unit for displaying an analog meter unit including a pointer for indicating the meter instruction value at a position on the scale and a pointer driving unit for driving the pointer to a position corresponding to the meter instruction value;
In the visual recognition direction of the analog meter portion, a display device arranged so that the display content can be visually recognized in a form overlapping the analog meter portion,
A display advance / retreat mechanism for rotating the display itself around a rotation axis parallel to the display surface of the display;
Ru is assumed that comprise.

According to the configuration related to the present invention , a display device is provided so as to be visible from the viewing direction of the analog meter section, and the display surface is rotated by rotating the display device around a rotation axis parallel to the display surface. Visible in an inclined state. For this reason, since the perspective due to the tilt appears on the display surface, the far side can be easily recognized as the traveling direction side.

In automotive meter display equipment related to the present invention, an axis of rotation, without the perpendicular to the viewing direction, and can be provided in parallel with the width direction of the analog meter unit. According to this configuration, the display device can be tilted forward or backward in the viewing direction, and a perspective can be given to the top and bottom of the display surface, so the traveling direction of the vehicle that is often displayed in the vertical direction can be changed. It can be displayed more clearly.

In automotive meter display equipment related to the present invention, the display device is capable of displaying by switching a plurality of display images, display reciprocating mechanism be rotated move the indicator in accordance with the display image is switched it can. According to this configuration, it is possible to adjust the perspective according to the display content.

In automotive meter display equipment related to the present invention, the indicator advancing and retracting mechanism is capable of holding the display device into a plurality of angular positions within the rotatable range set in advance, also, a plurality of display images The correspondence with the angle position is uniquely determined, and the display advance / retreat mechanism rotates the display so that the angle position of the display corresponds to the type of display image to be displayed on the display. Can be moved. According to this configuration, since the correspondence between the display contents and the inclination angle position is determined in advance, the display advance / retreat mechanism only needs to rotate the display according to the determined correspondence. Further, since the tilt angle position of the display is determined in advance, the display rotating mechanism only needs to reciprocate between the determined tilt angle positions, and the configuration can be simplified.

In automotive meter display equipment related to the present invention, an axis of rotation, without the perpendicular to the viewing direction, and provided with parallel to the lateral direction of the analog meter unit, indicator, quadrilateral display surface of Display pixels are arranged in a matrix along each of the first side direction and the second side direction adjacent to the first side direction, and the length of the first side and the length of the second side are It can be different from each other. According to this configuration, since the display surface of the display can be formed vertically or horizontally, it is possible to effectively use a limited area outside the basic function display area in the analog meter unit.

In automotive meter display equipment related to the present invention, the indicator advancing and retracting mechanism, the indicator is rotated move between the not visible display surface storage position and the display surface is viewable viewing position in the viewing direction be able to. According to this configuration, when the display by the display is not necessary, the display is moved to the storage position, so that the display cannot be completely viewed. In addition, when the display becomes necessary, the indicator suddenly appears from this storage position, so that a unique dynamic display is possible, and this operation emphasizes to the driver that the indicator is in the display state. Can be shown.

In automotive meter display equipment related to the present invention, the viewing position, an inclined viewing position where the display contents of the display surface is tilted visible to have a perspective in the vertical direction, the display content of the display surface is not inclined viewing And a non-tilt viewing position. According to this configuration, since the tilt position of the display device can be changed according to the display content that is easier to see when the perspective is given and the display content that is easier to see when there is no perspective, the visibility of the display content is increased.

In automotive meter display equipment related to the present invention, the inclined viewing position is above the display content visible to the viewing direction is far, a position at which the lower side is near. According to this configuration, the display contents are displayed at the same distance as the actual human visual field, so that the display contents can be visually recognized without a sense of incongruity.

In automotive meter display equipment related to the present invention, the indicator is adapted to display the traveling direction related images relating to the traveling direction of the vehicle, the indicator advancing and retracting mechanism, displays the traveling direction related image on the display device In this case, the display can be set to the tilt viewing position. According to this configuration, since the traveling direction related image is displayed in an inclined manner, the display direction can be easily recognized from the perspective. The traveling direction related image may include a direction symbol image for performing driving guidance. As the symbol image, for example, an arrow image indicating the traveling direction, a vehicle character image reflecting the traveling direction of the host vehicle, a character image related to the traveling direction display, or the like can be used. In this case, since the display of the arrow or the car is directed in the direction in which it is desired to proceed, a display that can be easily recognized can be realized. In addition, when displaying an arrow image or a traveling direction reflecting image that reflects the traveling direction of the host vehicle, the display surface of the display device is vertically long, so that a vertical display space, that is, a long display space in the traveling direction is provided. Since it can be ensured, it is possible to display a traveling direction related image in which the display direction can be recognized more easily. When character information is displayed, it is possible to quickly grasp the contents by setting the display surface of the display device to be horizontally long.

In automotive meter display equipment related to the present invention, the indicator is a vehicle character image showing a front view shape or rear view shape of the vehicle, in the vertical direction as viewed from the viewing direction, the top-and-bottom said vehicle character image In addition to displaying in a form in which the directions match, the display advance / retreat mechanism can set the display to a non-tilt visual recognition position when the vehicle character image is displayed on the display. In many cases, a front view image or a rear view image of a vehicle is displayed as a simple display image of the vehicle. However, visibility is increased when these images are displayed without perspective.

In automotive meter display equipment related to the present invention, the indicator is adapted to display the warning information, the indicator advancing and retracting mechanism, if the warning information is displayed in the display, non-tilt viewing the display It can be a position. The warning information is easier to grasp if it is displayed more clearly so that it is displayed more clearly. Further, when character information is displayed as warning information, the content can be quickly grasped by making the display surface of the display horizontally long.

In automotive meter display equipment related to the present invention can have a projection synthesis means for viewing the image with the image of the analog meter unit indicator in a form projected synthesized. According to this configuration, the image of the analog meter unit and the image of the display unit are superimposed and synthesized on the projection surface, so that one part is hidden behind the other and there is no invisible part, and both images are recognized. It becomes possible to do.

In automotive meter display equipment related to the present invention, the projection combining means is arranged on a viewer direction of the analog meter unit, with its front side is an image projection plane of the display, the analog meter unit in the viewing direction is A perspective projection member that can be seen through on the image projection surface can be provided. According to this configuration, the image of the analog meter unit and the image of the display unit are superimposed and synthesized on the projection surface, so that one part is hidden behind the other and there is no invisible part, and both images are recognized. It becomes possible to do.

In automotive meter display equipment related to the present invention, perspective projection member, together with the indicator and the indicator advancing and retracting mechanism is disposed in front above the analog meter unit, display unit and the analog meter section perspective projection member It can be set as the half mirror inclinedly arranged in the middle position. By using a half mirror, the above superimposed composite image can be easily realized.

In automotive meter display equipment related to the present invention, the display and it can display pixels arranged in a matrix and each self-luminous display device which is a light-emitting portion. According to this configuration, even if the display content changes, there is no decrease in contrast based on viewing angle dependence, so even when the display is rotated, display is always easy to see without reducing contrast. it can. Furthermore, since it is self-luminous, an auxiliary light source such as a backlight is unnecessary, so that the number of parts can be reduced and the cost can be reduced. Further, since the installation of the auxiliary light source is unnecessary, the display device itself can be formed thin, and mounting around the analog meter portion is facilitated.

In automotive meter display equipment related to the present invention, a self-luminous type display device may be an organic EL display or an inorganic EL display. By using a self-luminous display with high contrast such as EL, when only the image display area is turned on and the display area other than the image display area is turned off, the other display areas are metered on the projected image. This makes it impossible for the viewer to recognize, and even the contour of the display surface cannot be recognized, so that a floating feeling as if the display image displayed on the display device is floating can be produced. In the case of a conventional liquid crystal display, since the contrast is poor, it appears that light is emitted slightly outside the image display area. For this reason, the boundary of the display device is easily recognized, and the presence of the display device is easily recognized by the meter viewer, so that the floating feeling cannot be produced and the appearance is poor.

The automotive meter display equipment related to the present invention, the analog meter unit includes a pair of analog meter unit is disposed adjacent to the transverse direction, that the display content of the display is visible between their analog meter unit it can. In the case of a vehicle-mounted meter display device, a speedometer and a tachometer are often arranged adjacent to each other, and in this case, a wide vertically long space is created between the meters. By utilizing this space, the display can be made as large as possible, and the amount of display information and its visibility can be increased.

  Hereinafter, a first embodiment of a vehicle-mounted meter display device of the present invention will be described with reference to the drawings. FIG. 1 is a front external view of a vehicle-mounted meter display device of the present invention. The in-vehicle meter display device A shown in FIG. 1 has an analog meter unit 2 in which two analog meter units 2 (L) and 2 (R) that make a pair are arranged adjacent to each other, and these analog meter units 2 (L) The display content of the EL display 4 (projected image 4 ′ of the EL display 4) is visible at an intermediate position of 2 (R). The display content of the EL display 4 (projected image 4 ′) is not particularly limited as long as it is not a position that excessively obstructs the display of the analog meter units 2 (L) and 2 (R). By setting the intermediate position between the analog meter sections 2 (L) and 2 (R), a wider display area can be secured.

  The left analog meter section 2 (L) is a speed meter that displays the vehicle speed of the host vehicle, and the right analog meter section 2 (R) is a speed meter that displays the engine speed of the host vehicle. It is provided in the position which can be visually recognized. Since the analog meter units 2 (L) and 2 (R) have the same structure, the analog meter unit 2 (L) will be described below as a representative.

  As shown in FIG. 2, the analog meter section 2 (L) indicates a meter indication value at a position on the scale 6a (L) displayed on the dial 6 (L). ) And a pointer drive circuit unit 20 (L) for driving the pointer 2a (L) to a position corresponding to the meter instruction value via the rotary shaft 21 (L). A motor (pointer drive unit) M1 (L) drives the pointer 2a (L) via a gear unit or the like. The analog meter unit 2 is located on the back side of the EL display 4 with respect to the viewing direction C, and a circular rotating disk 3 having the EL display 4 is disposed on the upper side on the front side.

  The display surface 4a of the EL display 4 is an EL panel surface provided at the center of the surface 3a of the circular turntable 3, and the surface 3a of the circular turntable 3 excluding the display surface 4a is the analog meter portion 2. The color is the same as the background color outside the display area (scale, etc.). The EL display 4 is a self-luminous EL display in which thin-film EL elements (display pixels) are each used as a light emitting section and arranged in a matrix. The EL display employed in the present invention is not limited to a self-luminous EL display, and a liquid crystal screen or the like can be used. From the viewpoint of design such as a floating feeling, self-luminous EL display. In particular, an organic EL display or an inorganic EL display is desirable. In consideration of performing color display, an organic EL display using an organic substance such as diamines is more preferable than an inorganic EL display using an inorganic substance such as zinc sulfide as a light emitter. An organic EL display is adopted. The organic EL display and the inorganic EL display, and their drive circuits are well known, as described in, for example, Japanese Patent Application Laid-Open No. 9-232074 and Japanese Patent Application Laid-Open No. 9-54565. I will refrain from detailed explanation here.

  The EL display 4 is provided in a meter hood 7 above the front side of the analog meter section 2 so that the display surface can be viewed from below. A perspective projection member 5 is disposed at an intermediate position between the EL display 4 and the analog meter unit 2. In the present embodiment, the perspective projection member 5 is a half mirror. Thereby, the image drawn on the EL display 4 and the image of the analog meter unit 2 can be viewed from the viewing direction (viewing direction from the viewpoint of the driver) C in the form of being projected and synthesized by the perspective projection member 5. . Specifically, the perspective projection member 5 is disposed on the front side of the viewing direction C of the analog meter unit 2, and the image of the analog meter unit 2 can be seen through in the viewing direction C. Since the front projection 5a side of the perspective projection member 5 is an image projection plane of the EL display 4, the projection image of the EL display 4 can be viewed as a projection image 4 'from the viewing direction C of the analog meter unit 2. ing. That is, when the driver visually recognizes the analog meter unit 2, not only the image of the analog meter unit 2 but also the display image of the EL display 4 can be viewed.

  The EL panel surface 4 has display pixels arranged in a matrix along each of a first side direction of a quadrilateral display surface 4a and a second side direction adjacent thereto. In the present embodiment, the display surface 4a of the EL display 4 has a rectangular shape in which the length of the first side and the length of the second side are different from each other, and the number of pixels arranged in the first side direction and the second side direction. The number of pixels arranged in each is different from each other. In the present invention, the shape of the display surface 4a of the EL display 4 is not limited to the rectangular shape, and other shapes can also be adopted.

  The EL display 4 is connected to a display rotating mechanism 60, and is configured to mechanically rotate the EL display 4 itself within the display surface 4a of the EL display 4. The display rotating mechanism 60 includes a circular rotating disk 3, a motor M 2 serving as a driving source for rotation driving, a motor driving circuit 30 for driving the motor M 2, and an output rotation of the motor driving circuit 30 for rotating the circular rotating disk 3. It is comprised with the rotating shaft 31 which transmits to. As shown in FIG. 3, the rotary shaft 31 is coupled to the back side of the EL display 4 at a position corresponding to the center of gravity of the display surface of the EL display 4, and displays a display image on the EL display 4. A signal line 32 for transmitting a data signal for use is provided.

  Further, the EL display 4 can switch and display a plurality of display images, and the display rotating mechanism 60 rotates the circular turntable 3 and eventually the EL display 4 according to the switched display images. The display rotating mechanism 60 can hold the EL display 4 at a plurality of angular positions within a rotatable range around the axis, and the EL display according to the type of display image to be displayed on the EL display 4. The four angular positions correspond to each other. Specifically, the motor M2 is constituted by a known pulse motor, and the position is controlled by the number of input pulses. In addition, a rotation blocking unit for physically blocking rotation exceeding the limit position is provided so that the rotation of the circular turntable 3 is performed only between the set limit positions, and voltage detection for detecting the motor drive voltage. When the motor drive voltage detected by the voltage detection unit exceeds a predetermined threshold due to the load voltage generated by the rotation blocking state by the rotation blocking unit. It can be determined that the motor driving is stopped, and a reset process is performed in which the number of pulses at that time is set to the number of pulses that determines the current limit position.

  The display rotating mechanism 60 in the present embodiment is a first position where the EL display 4 whose display surface 4a is rectangular is projected and displayed on the perspective projection member 5 in a vertically long position ((a) in FIG. 3). Then, it is rotated 90 degrees around the axis from the first position, and is configured to rotate and reciprocate between the second position ((b) of FIG. 3) projected and displayed horizontally. This facilitates effective use of the dead space outside the basic function display area of the analog meter unit 2. That is, by making the EL display 4 have an elongated shape, the scales 6a (L) and (R) displayed on the operation areas of the hands 2a (L) and (R) and the dials 6 (L) and (R) are displayed. It is easy to set the first position and the second position so that the EL display 3 does not cover the display area as much as possible.

  Note that when only reciprocation at two positions (first position and second position) is performed as in the present embodiment, a known DC motor or the like may be used instead of the pulse motor. In this case, it is only necessary to provide the limit position detecting means as described above, and to stop the rotation drive in accordance with the detection of the limit position, and the configuration of the display rotating mechanism 60 can be simplified. In the present invention, the angle position of the EL display device 4 does not need to be determined, and at least the display device 4 only needs to be rotatable.

  As a display image displayed at the first position, there is an image of a traveling state of the host vehicle as shown in FIG. In particular, since the direction symbol of the travel guide is often displayed using a vertically long arrow, when the EL display device 4 is in a vertically long state, the display becomes easier to see. As the display image displayed at the second position, there are a vehicle front-captured image captured by the outside-camera shooting camera 50 as shown in FIG. 6B, a warning text, and a text image of a travel guidance text. . It is preferable to display an image, particularly a captured image of the front (or rear) of the vehicle, in a landscape orientation because the driver can check the front (or rear) field of view widely. Further, it is easier for the driver to recognize that the character information is displayed in the landscape rather than in the portrait. Note that the display content of the EL display 4 is not limited to these, and other images can be displayed. In this case, it is better to display the image in a vertically long (first position) or a horizontally long ( The corresponding angular position (first position or second position) needs to be set in advance depending on whether it is better to display the second position).

  Switching control of the display image of the EL display 4 and rotation drive control of the EL display 4 at the time of switching are executed by the meter ECU 10. As shown in FIG. 4, the meter ECU 10 includes a CPU 11, a RAM 12 having a work memory 12 a, a ROM 13 for storing various programs, a bus line 14, an input / output unit (shown as “I / O” in the drawing) 15, a nonvolatile memory An external memory 16 (for example, a nonvolatile memory such as an EEPROM) as a memory, a communication interface (indicated as “I / F” in the figure) 17 connected to a serial communication bus 400 connected to another ECU. And a reception buffer memory (hereinafter also referred to as a reception buffer) 17a for temporarily storing data received from the serial communication bus 500. The input / output unit 15 includes a motor drive circuit 20 (R) that drives the motor M1 (R) to drive the pointer 2a (R) of the analog meter unit 2 (R), and an analog meter unit 2 (L). A motor drive circuit 20 (L) for driving the motor M1 (L) to drive the pointer 2a (L) and a motor drive circuit 30 for driving the motor M2 for rotationally driving the EL display (EL panel) 3 In addition, an EL drive circuit 40 that includes a drawing LSI, a graphic memory, and the like and performs a drawing process of the EL display 4 is connected to an outside-camera shooting camera 50.

  The meter ECU 10 is connected to the body ECU 100 via the serial communication bus 500. The body system ECU 100 is connected to meter display detection units such as the vehicle speed sensor 101 and the engine speed sensor 102, and the detected values are output to the meter ECU 100. There may be other detection units connected to the body system ECU. For example, the detection unit is connected to a fuel remaining amount sensor, a water temperature sensor, etc., and these detected values are stored in the basic function display area of the analog meter unit 2. Can also be displayed. Further, a detection unit for detecting an abnormal state in the vehicle, such as the trunk / bonnet opening / closing detection sensor 103 for detecting the opening / closing of the trunk / bonnet, is connected, and the detection information is output to the meter ECU 100 at the time of detection. It is also connected to a known car navigation device 200. Based on the set route guidance, the navigation device 200 transmits display command information for causing the meter ECU 10 to perform guidance display when the timing for performing the direction guidance has come. This display command information includes display image designation information for designating a display image to be displayed on the EL display 4.

  The ROM of the meter ECU 10 has a known pointer driving program 13a for displaying an analog meter by the pointers 2a (L) and 2a (R) of the analog meter sections 2 (L) and 2 (R), and can be rotationally driven. An EL panel display program 13b for performing display control of the EL display 4 and driving control for rotating the EL display 4 by driving the display rotation mechanism 60 at the time of the display control is displayed on the EL panel. A display content storage unit 13c for storing a plurality of display data. The EL display 4 in the present invention can be switched to a plurality of display images, and the plurality of display images to be switched are the angular positions at which the display images are to be displayed (in the present embodiment, the first display described above). (Position and second position) are stored in the display content storage unit 13d. The stored display image is stored as image data that appears in a state (orientation) to be displayed when the corresponding angular position is reached, and is basically stored as horizontally long image data.

  In the present invention, based on the arrival of a display command to the EL display 4, display processing and rotation driving processing by the EL panel display program 13b are executed. When the CPU 11 executes the program 13b, the meter ECU 10 functions as a lighting control unit of the present invention. Hereinafter, the flow of processing of the EL panel display program 13b will be described with reference to FIG.

  In S0, it is determined whether an image display command is received. Specifically, when an acceleration state of the host vehicle exceeding a predetermined threshold is detected, or when timing information display timing for performing the traveling direction guidance has arrived, text information such as a warning sentence or a guidance sentence Whether or not the meter ECU 10 has received information indicating the arrival of the display timing of the display image stored in the display content storage unit 13c, such as when the timing for displaying the captured image outside the vehicle has arrived. Determine. If there is an image display command, the process proceeds to S1, and if not, S0 is repeated.

  In S1, angular position information (display mode command value) corresponding to the display command for which display is commanded is acquired. In the present embodiment, the command value “1” is the first position and “0” is the second position, and the display image is stored in the display content storage unit 13d in association with these command values. Then, the command value of the display image for which the display command has been issued is read. In S2, the current command value is acquired. In the present embodiment, a current command value storage unit that stores the command value of the current display image is provided in a predetermined storage area of the RAM 12, and the command value stored in the storage unit is read. In S3, it is determined whether or not the acquired command values are the same. If they are not the same, that is, if the EL display 4 (circular rotating disk 3) needs to be rotated, the process proceeds to S4. In S4, all the light emitting parts of the EL display 4 are first turned off in S5, and then the circular turntable 3 is rotated in S6. Along with the execution of this rotation drive, the CPU 11 sends image data to be displayed to the EL drive circuit 40 in S6. Subsequently, in S7, completion of the rotation of the circular turntable 3 is determined, and this determination is repeated until completion. When the rotation is completed, the process proceeds to S8, the light emitting unit of the EL display 4 is turned on, and this program is terminated. In S3, if the acquired command values are the same, that is, if it is not necessary to rotate the EL display 4 (circular turntable 3), the process proceeds to S9, and image data to be displayed is sent to the EL drive circuit 40. In step S10, the lighting state of the EL panel is switched and the program is terminated.

  As mentioned above, although 1st embodiment of this invention was described, these are only illustrations, this invention is not limited to these, A various change is possible unless it deviates from the meaning of a claim. It is.

  For example, as shown in FIG. 7, the perspective projection member 5 can be omitted. In this case, the display 4 is provided in front of the analog meter unit 2, and a cover is provided instead of the perspective projection member 5. A lens 8 is arranged.

  Further, when the motor drive circuit 30 is provided in a thin space, as shown in FIG. 8, a tooth portion 35a is provided on the outer peripheral surface of the circular rotating disk 3, and a gear 35 having a tooth portion 35b meshing with the tooth portion 35a. The motor drive circuit 30 can also be configured so as to have a distance in the horizontal direction and be located at a position with a space.

  Hereinafter, a second embodiment of the on-vehicle meter display device of the present invention will be described with reference to the drawings. FIG. 9 is a front external view of the on-vehicle meter display device of the present invention. The in-vehicle meter display device B shown in FIG. 9 has an analog meter unit 2 in which two analog meter units 2 (L) and 2 (R) that make a pair are arranged adjacent to each other, and these analog meter units 2 (L) The display content of the EL display 400 (U) having a vertically long rectangular display surface at the intermediate position 2 (R) (projected image 400 (U) ′ of the EL display 400 (U)) is an analog meter unit. The display content of the EL display 400 (D) having a horizontally long rectangular shape below the intermediate position 2 (L) and 2 (R) (projected image 400 (D) ′ of the EL display 400 (D)) is respectively Visible. Then, since the EL display devices 400 (U) and 400 (D) can be rotated so that the display surface is inclined as shown in FIG. 10, as if the display surface was tilted backward as shown in FIG. It is possible to display a display image with a sense of perspective that gives a unique impression as projected images 400 (U) ′ and 400 (D) ′.

  The display contents of the EL display devices 400 (U) and 400 (D) (projected images 400 (U) ′ and 400 (D) ′) are displayed at analog meter units 2 (L) and 2 (R). If the analog meter portions 2 (L) and 2 (R) have a circular shape as in the present embodiment, the vertical EL display 400 ( U) is arranged at the middle position between the analog meter sections 2 (L) and 2 (R), and when the horizontally long EL display 400 (D) is arranged, the analog meter sections 2 (L), 2 ( By setting it above or below the intermediate position R), it is possible to secure a wider display area. The projected images 400 (U) ′ and 400 (D) ′ may both have perspective, but in the present embodiment described below, the projected image 400 (D) ′ is in a non-tilted state. In other words, it is displayed in a state where a sense of perspective does not appear.

  The analog meter units 2 (L) and 2 (R) have the same functions and configurations as those of the first embodiment. Since the analog meter units 2 (L) and 2 (R) have the same structure, the analog meter unit 2 (L) will be described below as a representative.

  As shown in FIG. 10, the analog meter section 2 (L) has a dial 6 (L), a scale 6 a (L), a pointer 2 a (L), a rotating shaft, as in the first embodiment. 21 (L) and a pointer drive circuit 20 (L). A motor (pointer drive unit) M1 (L) drives the pointer 2a (L) via a gear unit or the like. The analog meter section 2 is located on the back side of the EL display devices 400 (U) and 400 (D) with respect to the viewing direction C, and the EL display device 400 (U) is further on the front side. The EL display 400 (D) is arranged on each side.

  The EL displays 400 (U) and 400 (D) are self-luminous EL displays as in the first embodiment, and each of the display surfaces 400 a (U) and 400 a (D) is a light emitting unit. A thin film EL element (display pixel) is arranged in a matrix. In addition, the display device which can be employed is the same as that of the first embodiment, and the reason why it can be employed is also the same.

  These EL displays 400 (U) and 400 (D) are provided in the meter hood 7 above the front side of the analog meter unit 2 so that the display surface can be viewed from below. The perspective projection member 5 is disposed at an intermediate position between the EL displays 400 (U) and 400 (D) and the analog meter unit 2. In the present embodiment, the perspective projection member 5 is a half mirror. As a result, the image drawn on the EL displays 400 (U) and 400 (D) and the image of the analog meter unit 2 are projected and synthesized by the perspective projection member 5 in the viewing direction (viewing from the viewpoint of the driver). It becomes visible from (direction) C. Specifically, the perspective projection member 5 is disposed on the front side of the viewing direction C of the analog meter unit 2, and the image of the analog meter unit 2 can be seen through in the viewing direction C. Since the front projection 5a side of the perspective projection member 5 is an image projection surface of the EL display 400 (U), 400 (D), the projection image of the EL display 400 (U), 400 (D) is the projection image 400. (U) ′ and 400 (D) ′ are visible from the viewing direction C of the analog meter unit 2. That is, when the driver visually recognizes the analog meter unit 2, not only the image of the analog meter unit 2 but also the display images of the EL displays 400 (U) and 400 (D) can be viewed.

  The EL displays 400 (U) and 400 (D) are arranged along the first side direction of the quadrilateral display surfaces 400 a (U) and 400 a (D) and the second side direction adjacent thereto, respectively. Display pixels are arranged in a matrix. In the present embodiment, the display surface 400a (U) of the EL display 400 (U) has a vertically long rectangular shape in which the length of the first side and the length of the second side are different from each other, and is arranged in the first side direction. And the number of pixels arranged in the second side direction are different from each other. The display surface 400a (D) of the EL display 400 (D) has a horizontally long rectangular shape in which the length of the first side and the length of the second side are different from each other, and the number of pixels arranged in the first side direction. And the number of pixels arranged in the second side direction are different from each other. In the present invention, the shape of the display surfaces 400a (U) and 400a (D) of the EL displays 400 (U) and 400 (D) is not limited to the rectangular shape, and other shapes may be adopted. Is possible.

  These EL displays 400 (U) and 400 (D) are connected to display rotation mechanisms (display advance / retreat mechanisms) 600 (U) and 600 (D), and the EL displays 400 (U) and 400 (D) themselves. The display surfaces 400a (U) and 400a (D) are mechanically rotated around a rotation axis. The display rotation mechanisms 600 (U) and 600 (D) are used to drive the motors M20 (U) and M20 (D) and the motors M20 (U) and M20 (D), which are rotational drive sources. Motor drive circuits 310 (U), 310 (D) and rotation shafts 320 (U) for transmitting output rotations of the motor drive circuits 310 (U), 310 (D) to the EL displays 400 (U), 400 (D). ), 320 (D). The rotary shafts 320 (U) and 320 (D) are perpendicular to the viewing direction C and are provided in parallel with the horizontal width direction of the analog meter unit 2, and inside the EL display devices 400 (U) and 400 ( D) is provided with a signal line (not shown) through which a data signal for displaying the display image is transmitted. The EL display 400 (U) includes a rotating shaft 320 (U) on the front side in the viewing direction C, and the rotating shaft 320 (U) is coupled to the short side of the display surface having a vertically long rectangular shape. It is formed mainly in the form in which the upper part on the back side of the rotation shaft 320 (U) is a rotational movement range. The EL display 400 (D) includes a rotation axis 320 (D) that crosses the center of the display surface having a horizontally long rectangular shape and has a rotation axis along the long side, and the display surface 400 a (D) is directed downward. It is formed so that it can be rotated 180 degrees.

  The EL display devices 400 (U) and 400 (D) can switch and display a plurality of display images, and the display device rotation mechanisms 600 (U) and 600 (D) are switched display images. In response, the EL displays 400 (U) and 400 (D) are rotated so as to tilt. The display rotation mechanisms 600 (U) and 600 (D) are arranged at a plurality of angular positions within a rotatable range around the rotation axes 320 (U) and 320 (D). D) can be tilted and the angle positions of the EL displays 400 (U) and 400 (D) correspond to each other according to the type of display image to be displayed. Specifically, the motors M20 (U) and M20 (D) are configured by well-known pulse motors, and the position is controlled by the number of input pulses. In addition, the EL displays 400 (U) and 400 (D) include a rotation blocking unit that physically blocks rotation exceeding the limit position so that each rotation is performed only between the determined limit positions. And a well-known voltage detection unit for detecting a motor drive voltage as a limit position detection means, provided at each rotation range limit position, and the voltage detection unit based on a load voltage generated in accordance with a rotation blocking state by the rotation blocking unit When the motor drive voltage detected by the motor exceeds a predetermined threshold, the rotation limit position is determined, the motor drive is stopped, and the number of pulses at that time is set to the number of pulses that determines the current limit position. Can be configured to be executed.

  As shown in FIG. 11, the display rotating mechanisms 600 (U) and 600 (D) in the present embodiment have EL display 400 (U) and rectangular display surfaces 400 a (U) and 400 a (D). 400 (D) is rotated in the viewing direction C between a storage position where display content is not visible and a viewing position where display content is visible. This visual recognition position can include an inclination visual recognition position where the display content on the display surface is visually recognized so as to have a perspective in the vertical direction, and a non-inclination visual recognition position where the display content on the display surface is not visible. The tilt viewing position can be a position where the upper side of the display content seen from the viewing direction C is far and the lower side is near.

  In the present embodiment, the display rotating mechanism 600 (U) has the EL display 400 (U) in the storage position as shown in FIG. 14A, and shown in FIGS. 14B to 14D. It is rotated between the viewing position. At this time, both (a) and (d) of FIG. 14 correspond to the rotation limit position, and (d) of FIG. 14 corresponds to the above-described non-tilt visual recognition position. (B) of FIG. 14 is a 1st inclination visual recognition position, (c) of FIG. 14 is a 2nd inclination visual recognition position. The display image displayed on the EL display 400 (U) includes a traveling direction related image related to the traveling direction of the host vehicle, a traveling state related image related to the traveling state of the host vehicle, and the like as shown in FIG. is there. The traveling direction related image is, for example, a direction symbol image for performing driving guidance, an arrow image 42 indicating the traveling direction, a vehicle character image 41 reflecting the traveling direction of the host vehicle, character information related thereto, and the like. can do. These are given a sense of perspective by the inclination of the display surface 400a (U), so that the direction of travel can be recognized more easily. Further, the running state related images are, for example, vehicle speed information images 41 and 44 that directly or indirectly indicate the vehicle speed of the host vehicle, inter-vehicle distance information images 45 and 46 that indicate the distance between the host vehicle and the preceding vehicle, and characters related thereto. It can be set as the image which displays the change information according to vehicle running states, such as information. In this case, the magnitude of the change can be expressed according to the inclination angle of the display surface 400a (U), so that it can be understood sensuously without directly viewing the display. For example, in the case of a vehicle speed information image, the viewing position is set so that the angle with respect to the non-tilt visual recognition position increases as the vehicle speed or acceleration increases, and in the case of the inter-vehicle distance information image, the angle with respect to the non-tilt visual recognition position as the inter-vehicle distance decreases. It is possible to set a visual recognition position that reduces. The inter-vehicle distance information image 46 is a vehicle character image of the own vehicle and the vehicle character image of the preceding vehicle. By displaying the vehicle character image of the own vehicle as near and the vehicle character image of the preceding vehicle as far, It becomes easier to grasp the distance between vehicles.

  In the present embodiment, the display rotation mechanism 600 (D) rotates the EL display 400 (D) between two positions, that is, a storage position and a visual recognition position. The viewing position may be either a tilted viewing position or a non-tilted viewing position. In the present embodiment, as shown in FIG. 16, a horizontally long EL display 400 (D) is displayed with warning information. Since it is used for display, it is set as a non-tilt visual recognition position. As shown in FIG. 17, the image displayed on the EL display 400 (D) displays not only the warning information but also a vehicle front photographed image taken by the camera 50 for photographing outside the vehicle, character / numerical information, and the like. You can also The vehicle front photographed image is a photographed image of the front (or rear) of the vehicle, and it is preferable to display these on a horizontally long display because the driver can check the front (or rear) field of view widely.

  In the case where only the two-way rotational reciprocating operation is performed as in the display rotating mechanism 600 (D) of the present embodiment, the motor M20 (D) may be a well-known DC motor or the like instead of the pulse motor. . In this case, it is only necessary to provide the limit position detecting means as described above, and to stop the rotation driving in accordance with the detection of the limit position, and the configuration of the display rotating mechanism 600 (D) can be simplified.

  The meter ECU 10 executes the display image switching control of the EL displays 400 (U) and 400 (D) and the rotational drive control of the EL displays 400 (U) and 400 (D) at the time of switching. As shown in FIG. 12, the meter ECU 10 includes a CPU 11, a RAM 120 having a work memory 120a, a ROM 130 for storing various programs, a bus line 14, an input / output unit (indicated as “I / O” in the figure) 15, a nonvolatile memory An external memory 16 (configured by a nonvolatile memory such as an EEPROM) as a memory, a communication interface (shown as “I / F” in the figure) 17 connected to a serial communication bus 500 connected to another ECU. And a reception buffer memory (hereinafter also referred to as a reception buffer) 17a for temporarily storing data received from the serial communication bus 500. The input / output unit 15 includes a motor drive circuit 20 (R) that drives the motor M1 (R) to drive the pointer 2a (R) of the analog meter unit 2 (R), and an analog meter unit 2 (L). A motor drive circuit 20 (L) for driving the motor M1 (L) to drive the pointer 2a (L) and a motor M20 (U) for rotationally driving the EL display (EL panel) 400 (U) A motor driving circuit 310 (U) for driving, a motor driving circuit 310 (D) for driving a motor M20 (D) for rotationally driving the EL display 400 (D), a drawing LSI, a graphic memory, etc. An EL driving circuit 410 (U) that performs drawing processing of the EL display 400 (U), an EL driving circuit 410 (D) that similarly performs drawing processing of the EL display 400 (D), and the outside-camera shooting camera 50. Connected To have.

  The meter ECU 10 is connected to a body ECU 10 to which various sensors 101, 102, 103 are connected, and functions in the same manner as in the first embodiment. Further, it is also connected to a well-known car navigation device 200, and, similar to the first embodiment, when the timing for performing the traveling direction guidance has arrived based on the set route guidance, the guidance display is displayed on the meter ECU 10. The display command information for performing is transmitted. This display command information includes display image designation information for designating a display image to be displayed on the EL display devices 400 (U) and 400 (D).

  The ROM of the meter ECU 10 has a well-known pointer driving program 130a for displaying an analog meter by the pointers 2a (L) and 2a (R) of the analog meter sections 2 (L) and 2 (R), and can be rotationally driven. In addition to performing display control of the EL displays 400 (U) and 400 (D), drive control for driving the display rotation mechanism 600 to rotate the EL displays 400 (U) and 400 (D) during the display control. Recognize current angle positions of EL panel display program 130b to be executed, display content storage unit 130c for storing a plurality of display data to be displayed on the EL panel, and EL displays 400 (U) and 400 (D). For this purpose, an angular position counter 130d for counting the number of pulses of the motors M20 (U) and M20 (D) is provided. The EL display devices 400 (U) and 400 (D) in the present invention can be switched to a plurality of display images, and the plurality of display images to be switched specify a display device on which the display image is to be displayed. The display content storage unit 130d stores the display device identification information and the tilt angle position information of the display device when displayed on the display device in association with each other.

  In the present invention, display processing and rotation drive processing by the EL panel display program 130b are executed based on the arrival of a display command to the EL displays 400 (U) and 400 (D). When the CPU 11 executes the program 130b, the meter ECU 10 functions as a lighting control unit of the present invention. Hereinafter, the process flow of the EL panel display program 130b will be described with reference to FIG.

  In S100, it is determined whether an image display command has been received. Specifically, when an acceleration state of the host vehicle exceeding a predetermined threshold is detected, or when timing information display timing for performing the traveling direction guidance has arrived, text information such as a warning sentence or a guidance sentence Whether or not the meter ECU 10 has received information indicating that the display timing of the display image stored in the display content storage unit 130c has arrived, such as when the display timing of the vehicle has arrived, or when the timing of displaying an image taken outside the vehicle has arrived Determine. If there is an image display command, the process proceeds to S101, and if not, S100 is repeated.

  In S101, display device specifying information corresponding to the display image for which display is instructed is acquired. Specifically, since the display image is stored in the display content storage unit 130c in association with display device specifying information for specifying the display device to be displayed, in S101, the display image for which the display command has been issued is stored. Read display unit specific information. In S102, it is determined whether or not the acquired display device specifying information indicates the EL display device 400 (U). If the display device specifying information indicates the EL display device 400 (U), the process proceeds to S103 to display the display image for which display is instructed. The EL display 400 (U) is set as symmetry. When the EL display 400 (U) is not shown, the process proceeds to S104, and the EL display 400 (D) is set as the display symmetry of the display image for which display is instructed.

  In S105, the tilt angle position information (display mode command value) corresponding to the display command for which display is commanded is acquired. In this embodiment, the command values “0” and “0” are the non-tilt visual recognition position, the command values “0” and “1” are the first tilt visual recognition position, and the command values “1” and “0” are the second tilt visual recognition position and the command. Since the values “1” and “1” are stored, and the display image is stored in the display content storage unit 130c in association with these command values, in S105, the command value of the display image for which the display command has been issued. Lead. In S106, the current command value is acquired. In the present embodiment, a current command value storage unit for storing the command value of the current display image is provided in a predetermined storage area of the RAM 120, and the command value stored in the storage unit is read, and after the read Is overwritten by the command value of the display image for which display is commanded. In S107, it is determined whether or not the acquired command values are the same. If they are not the same, that is, if tilt rotation of the EL display 400 (U) or 400 (D) is necessary, the process proceeds to S108. In S108, all the light emitting parts of the EL display 4 are turned off, and then the tilt angle of the EL display 400 (U) or 400 (D) that is the display target based on the command value acquired in S105 in S109. Set the position. In S110, the EL display 400 (U) or 400 (D) that is the display target is rotationally driven to the set tilt angle position. Along with the execution of the rotation drive, in S111, the image data of the display image for which display is instructed is sent to the corresponding EL drive circuit 410 (U) or 410 (D). Subsequently, in S112, the completion of rotation of the EL display 400 (U) or 400 (D) that is the display target is determined, and this determination is repeated until completion. When the rotation is completed, the process proceeds to S113, the light emitting unit of the EL display 400 (U) or 400 (D) that is the display target is turned on, and this program is terminated. If the acquired command values are the same in S107, that is, if it is not necessary to rotate the EL display 400 (U) or 400 (D) that is the display target, the process proceeds to S114, and the image data to be displayed is displayed. , To the corresponding EL drive circuit 410 (U) or 410 (D), the lighting state of the EL panel is switched in S115, and this program is terminated.

  As mentioned above, although embodiment of this invention was described, these are only illustrations to the last, and this invention is not limited to these, A various change is possible unless it deviates from the meaning of a claim. .

  For example, a horizontally long EL display 400 (D) is provided above or below the intermediate position of the analog meter units 2 (L) and 2 (R), and any of these is displayed based on the arrival of the timing to be displayed. It is also possible to configure such that both of them can be viewed by rotating. Further, as shown in FIG. 18, the perspective projection member 5 can be eliminated. In this case, the display 400 (D1) and the display 400 (D2) are provided above and below the analog meter unit 2 in the viewing direction, and are configured to be directly visible rather than as projection images. Instead, a cover lens 8 is arranged. According to this configuration, it is normally viewed as a conventional meter display device in which only the analog meter unit 2 is displayed, but based on the arrival of the display timing for displaying auxiliary information, the upper or lower surface in front of the analog meter unit Therefore, the display 400 (D1) and the display 400 (D2) rotate and appear and can be visually recognized, so that design features can be given to the display of the auxiliary information.

  In all the above embodiments, in order to give a design feature to the rotation operation of the display device, in the case of display contents that do not require urgency such as a warning display, the meter ECU sets the rotation speed of the display device. It can also be controlled so that it is dropped from other display contents. According to this configuration, urgency can be emphasized by the rotation speed of the display device. It is also possible to control the display so that the display is turned on even during rotational movement, the current display image is faded out, and a new display image is faded in at the same time. According to this configuration, it is possible to give a design feature by simultaneously showing an image change and a tilt change on the display surface. Furthermore, the display image can be displayed in gradation within the display surface, the display indicating the back can be dark, and the display control can be performed to brighten the front, thereby expressing the sense of depth more cooperatively, Visibility can also be improved.

  In both the above-described embodiments, the outside-shooting camera 50 may be a night-vision camera (infrared camera: night-vision image capturing means) that captures the front of the vehicle, and a night-view captured image may be displayed on a horizontally long display. Is possible. As a result, the front vision of the vehicle at night or in a dark place can be recognized more clearly, and this is displayed on a meter portion where a speedometer or the like is arranged, so that the driver can easily see the image. .

  In addition, although described with the analog meter in both said embodiment, the effect of this plan is realizable also in the format of another meter.

The external view from the 1st visual recognition direction in 1st embodiment of the vehicle-mounted meter display apparatus of this invention. Sectional drawing of the vehicle-mounted meter display apparatus of FIG. Explanatory drawing explaining the arrangement structure of the EL display in 1st embodiment. The block diagram which shows the electrical constitution of the vehicle-mounted meter display apparatus in 1st embodiment. The flowchart which shows the flow of a display process of the EL display in 1st embodiment. Explanatory drawing explaining the display content of the EL display in 1st embodiment. Explanatory drawing explaining another embodiment of the indicator rotation mechanism in 1st embodiment. Explanatory drawing explaining the arrangement structure of the EL display in FIG. The external view from the 2nd visual recognition direction in 2nd embodiment of the vehicle-mounted meter display apparatus of this invention. Sectional drawing of the vehicle-mounted meter display apparatus of FIG. Explanatory drawing explaining the arrangement structure of the EL display in 2nd embodiment. The block diagram which shows the electrical constitution of the vehicle-mounted meter display apparatus in 2nd embodiment. The flowchart which shows the flow of a display process of 2nd embodiment EL display. The 1st explanatory view explaining the rotation motion of the EL indicator in a second embodiment. The 1st explanatory view explaining the display contents of the EL indicator in a second embodiment. The 2nd explanatory view explaining the rotation motion of the EL indicator in a second embodiment. The 2nd explanatory view explaining the display contents of the EL indicator in a second embodiment. Explanatory drawing explaining another embodiment of the indicator rotation mechanism in 2nd embodiment.

Explanation of symbols

A, B Vehicle-mounted meter display device 2 Analog meter section 2 (L), 2 (R) Analog meter section 2 a (L), 2 a (R) Pointer 3 Circular turntable 4 EL display (display)
5 perspective projection member (projection synthesis means)
6 (L), 6 (R) Dial 10 Meter ECU
30 Motor drive circuit 31 Rotating shaft 60 Display rotating mechanism 50 Camera for photographing outside the vehicle (night vision image photographing means)
400 (U), 400 (D) EL display (display)
310 (U), 310 (D) Motor drive circuit 320 (U), 320 (D) Rotating shaft 410 (U), 410 (D) EL drive circuit 600 (U), 600 (D) Display rotation mechanism (display Instrument advance / retreat mechanism)

Claims (17)

And guidelines for instructing meter readings at a position on the scale, an analog meter unit for displaying the analog meter over which a pointer driving unit for driving the finger needle to a position corresponding to the meter readings,
In the visual recognition direction of the analog meter portion, a display device arranged so that the display content can be visually recognized in a form overlapping the analog meter portion;
A display rotation mechanism that mechanically rotates the display itself within the display surface of the display;
A vehicle-mounted meter display device comprising:   The on-vehicle meter display device according to claim 1, wherein the display is capable of switching and displaying a plurality of display images, and the display rotating mechanism rotates the display according to the switched display images. The display rotation mechanism can hold the display at a plurality of angular positions within a rotatable range around an axis, and the correspondence between the plurality of display images and the angular positions is uniquely determined. As well as
The in-vehicle use according to claim 2, wherein the display rotating mechanism rotates the display so that the angular position of the display corresponds to the type of the display image to be displayed on the display. Meter display device.   The display device includes display pixels arranged in a matrix along each of a first side direction of a quadrilateral display surface and a second side direction adjacent to the first side direction. The length of one side and the length of the second side are different from each other, or the number of pixels arranged in the first side direction and the number of pixels arranged in the second side direction are different from each other. The on-vehicle meter display device according to any one of claims 1 to 3.   The display rotation mechanism rotates the display between a first position where the first side of the display surface is in the vertical direction and a second position where the second side is in the vertical direction. The vehicle-mounted meter display device described.   The display surface has a rectangular shape with the first side as a long side, and the indicator displays an image of a direction symbol for driving guidance of the host vehicle at the first position where the long side is a vertical direction. The on-vehicle meter display device according to claim 5.   The said display surface comprises the rectangular shape which makes said 1st side a long side, and the said indicator displays the character information image-displaying in said 2nd position where this long side becomes a horizontal direction. Item 7. A vehicle-mounted meter display device according to Item 6. With a night vision image photographing means for photographing a night vision image in front of the vehicle,
The display surface has a rectangular shape with the first side as a long side, and the display is captured by the night vision image capturing unit at the second position where the long side is in a horizontal direction. The on-vehicle meter display device according to any one of claims 5 to 7, which displays a night vision image.   The on-vehicle meter display device according to any one of claims 1 to 8, further comprising a projecting and synthesizing unit that visually recognizes the image of the analog meter unit and the image of the display unit by projecting and synthesizing the image.   The projection synthesizing unit is arranged in a viewing direction of the analog meter unit, and a front side thereof is an image projection surface of the display unit, and the analog meter unit can be seen through the image projection surface in the viewing direction. The on-vehicle meter display device according to claim 9, further comprising a perspective projection member.   In the perspective projection member, the display and the display rotation mechanism are disposed at an upper front side of the analog meter unit, and the perspective projection member is disposed at an intermediate position between the display and the analog meter unit. The in-vehicle meter display device according to claim 10, which is a half mirror.   The on-vehicle meter display device according to any one of claims 9 to 11, wherein the display device is a self-luminous display device in which display pixels arranged in a matrix form are light emitting units.   The on-vehicle meter display device according to claim 12, wherein the self-luminous display is an organic EL display or an inorganic EL display.   14. The vehicle-mounted meter display device according to claim 12 or 13, further comprising a lighting control unit that turns off the light emitting unit forming the display pixel while the display is rotated by the display rotating mechanism.   15. The analog meter unit according to claim 1, wherein a pair of the analog meter units are arranged adjacent to each other in the horizontal direction, and display contents of the display unit can be visually recognized between the analog meter units. The vehicle-mounted meter display device described in 1.   The vehicle-mounted meter display according to any one of claims 1 to 15, wherein a rotation axis of the display is coupled to a back side of the display at a position corresponding to the center of gravity of the display surface. apparatus. Vehicle meter display device of the display unit in claim 16, wherein the signal line for sending data signals for display Viewing image is provided inside the rotary shaft.

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