JP2019156248A - Vehicle display device - Google Patents

Abstract

To provide a vehicle display device which can properly detect a failure of a display part.SOLUTION: A vehicle display device 1 includes: a liquid crystal display device 40; a housing 10; a detection part 50; and a GDC microcomputer 60. The liquid crystal display device 40 is mounted on a vehicle and has a display screen 430 which displays images. The housing 10 houses the liquid crystal display device 40. The detection part 50 detects a light emission state of the display screen 430. The GDC microcomputer 60 determines a failure of the liquid crystal display device 40 based on a detection result of the detection part 50. The display screen 430 is formed including an exposure area 430a exposed to the outside of the housing 10 and a non-exposure area 430b which is not exposed to the outside of the housing 10. The detection part 50 detects a light emission state of the non-exposure area 430b.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle display device.

  Conventionally, as a display device for a vehicle, for example, Patent Document 1 discloses a display device that includes a display that is mounted on a vehicle and displays an image of a meter that represents a speed or the like.

JP 2017-49058 A

  By the way, the display device described in Patent Document 1 described above is desired to detect a display failure, for example.

  Therefore, the present invention has been made in view of the above, and an object of the present invention is to provide a vehicle display device that can appropriately detect a failure of a display unit.

  In order to solve the above-described problems and achieve the object, a vehicle display device according to the present invention includes a display unit that is mounted on a vehicle and has a display screen that displays an image, a housing that houses the display unit, A detection unit that detects a light emission state of the display screen; and a control unit that determines a failure of the display unit based on a detection result of the detection unit, wherein the display screen is exposed to the outside of the housing. An exposed region and a non-exposed region that is not exposed to the outside of the housing are configured, and the detection unit detects a light emission state of the non-exposed region.

  In the vehicle display device, the housing includes a main body provided with an opening in which a box is formed and the display is disposed, and a turn-back member that is formed in a frame and is assembled around the opening. The facing member is configured to include a cover wall that covers the non-exposed region in a state assembled to the opening, and the detection unit is disposed between the cover wall and the non-exposed region. It is preferable to be provided.

  In the vehicle display device, the non-exposed region displays a test image for detecting a failure of the display unit, and the detection unit emits the light emission based on the test image displayed in the non-exposed region. It is preferable to detect the state.

  In the vehicle display device, the display unit includes a first display unit that displays an image and a second display unit that is different from the first display unit, and the control unit includes the first display unit. When a failure occurs, it is preferable to display an image to be displayed on the first display unit on the second display unit.

  A vehicle display device according to the present invention includes a display screen having an exposed region exposed outside the housing and a non-exposed region not exposed outside the housing, and the detection unit emits light in the non-exposed region. Detect state. With this configuration, the vehicular display device can display a test image different from the image displayed in the exposed area in the non-exposed area, and can appropriately detect a failure of the display unit.

FIG. 1 is a front view illustrating a configuration example of a vehicle display device according to an embodiment. FIG. 2 is a cross-sectional view taken along line XX shown in FIG. 1 in the vehicle display device according to the embodiment. FIG. 3 is a flowchart illustrating an operation example of the vehicle display device according to the embodiment. FIG. 4 is a front view illustrating a configuration example of a vehicle display device according to a modification of the embodiment.

  DESCRIPTION OF EMBODIMENTS Embodiments (embodiments) for carrying out the present invention will be described in detail with reference to the drawings. The present invention is not limited by the contents described in the following embodiments. The constituent elements described below include those that can be easily assumed by those skilled in the art and those that are substantially the same. Furthermore, the structures described below can be combined as appropriate. Various omissions, substitutions, or changes in the configuration can be made without departing from the scope of the present invention.

Embodiment
The vehicle display device 1 according to the embodiment will be described. The vehicle display device 1 constitutes a so-called meter, and is mounted on, for example, an instrument panel provided on a dashboard of a vehicle such as an automobile, and displays various information used for driving the vehicle.

  Note that the width direction of the vehicle display device 1 typically corresponds to the vehicle width direction of the vehicle to which the vehicle display device 1 is applied. The depth direction of the vehicle display device 1 typically corresponds to the front-rear direction of the vehicle to which the vehicle display device 1 is applied (in other words, the vehicle traveling direction). The front side of the vehicle display device 1 is the side facing the driver's seat of the vehicle, and is typically the side that is visually recognized by the driver sitting in the driver's seat. On the other hand, the back side of the vehicular display device 1 is the side opposite to the front side in the depth direction, and is typically the side accommodated inside the instrument panel. In addition, each direction used in the following description represents a direction in a state where the vehicle display device 1 is assembled to the instrument panel unless otherwise specified. The eye point (viewing position) EP is the position of the driver's viewpoint determined in advance according to the vehicle, and is assumed in advance as a space region.

  As shown in FIGS. 1 and 2, the vehicle display device 1 includes a housing 10, a meter substrate 20, a front glass 30, a liquid crystal display device 40 as a display unit, a detection unit 50, and a control unit. And a GDC (Graphics Display Controller) microcomputer 60. The housing 10 is assembled with various components constituting the vehicle display device 1 and accommodates them. The casing 10 is made of an insulating resin material or the like. The housing 10 includes, for example, a housing case 11 as a main body and a turning member 12. The storage case 11 is assembled with various components constituting the vehicular display device 1 and stores them. The storage case 11 is formed in a box shape and has an internal space 110. The housing case 11 is provided with an opening 111 on the front side in the depth direction. The opening 111 is formed in a rectangular shape, and is opened to a size equivalent to the rectangular display screen 430 of the liquid crystal display device 40. The liquid crystal display device 40 is disposed in the opening 111 so that the display screen 430 can be viewed from the eye point EP. The housing case 11 houses the liquid crystal display device 40 in the internal space 110 in a state where the liquid crystal display device 40 is disposed in the opening 111. The housing case 11 is provided with a locking hole 112 for locking the facing member 12 on the opening 111 side. In addition, the housing case 11 is provided with a support portion 113 that supports a liquid crystal display 43 described later.

  The facing member 12 is a member that is assembled around the opening 111 of the housing case 11 and holds the liquid crystal display 43 together with the housing case 11. Then, the turning member 12 exposes the display screen 430 of the liquid crystal display 43 to the front side in the depth direction, that is, the eye point EP side. The facing member 12 is formed in a frame shape when viewed from the depth direction. The facing member 12 includes a cylindrical part 120 and a holding part 121. The cylindrical portion 120 is a portion that is formed in a cylindrical shape and extends toward the eye point EP along the depth direction. As for the cylinder part 120, the front glass 30 is assembled | attached to the front side of the depth direction.

  The holding part 121 is a part that is provided on the back side in the depth direction of the cylindrical part 120 and is in contact with the outer peripheral part of the opening 111 of the housing case 11. The holding part 121 is formed in a frame shape and includes a cover wall 121a, a first side wall 121b, and a second side wall 121c. The cover wall 121a is formed in an annular and flat plate shape. The covering wall 121a is located on the front side of the display screen 430 when viewed from the depth direction. The covering wall 121 a covers a part of the display screen 430 in a state where the holding unit 121 is assembled to the opening 111 so as to surround the opening 111 of the housing 10. The covering wall 121a covers, for example, the outer peripheral portion (a non-exposed region 430b described later) of the display screen 430 when viewed from the depth direction.

  The first side wall 121b is formed in an annular shape when viewed from the depth direction, and extends from the outer peripheral edge of the cover wall 121a to the display screen 430 side along the depth direction. The first side wall 121 b is assembled so as to surround the outside of the opening 111 of the housing case 11. That is, the first side wall 121 b is located outside the opening 111 of the housing case 11 in a state where the holding unit 121 is assembled to the opening 111 of the housing case 11. For example, the first side wall 121b is assembled to the opening 111 of the housing case 11 with the inside of the first side wall 121b in contact with the outer peripheral surface of the housing case 11. The first side wall 121 b is provided with screw holes 121 d at predetermined intervals along the circumferential direction, and the screw holes 121 d are aligned with the locking holes 112 of the housing case 11. The facing member 12 is locked to the housing case 11 by inserting the screws 13 into the screw holes 121 d of the first side wall 121 b and the locking holes 112 of the housing case 11.

  The second side wall 121c is formed in an annular shape when viewed from the depth direction, and extends from the inner peripheral edge of the cover wall 121a to the display screen 430 side along the depth direction. The second side wall 121c is disposed inside the first side wall 121b. The second side wall 121c is formed such that the length on the back side in the depth direction is shorter than the first side wall 121b, and is in contact with the display screen 430. The second side wall 121 c is in contact with the display screen 430 to hold the display screen 430 in cooperation with the housing case 11. That is, the second side wall 121 c holds the liquid crystal display 43 in cooperation with the support portion 113 of the housing case 11. As described above, the holding unit 121 holds the liquid crystal display 43 in a state where the holding unit 121 is assembled to the opening 111 of the housing case 11. The holding unit 121 forms a sensor housing space 121 e between the display screen 430 of the liquid crystal display 43. The sensor housing space 121 e is a space surrounded by the cover wall 121 a, the first side wall 121 b, the second side wall 121 c, and the display screen 430 of the holding unit 121. The detection unit 50 is installed in the sensor housing space 121e.

  The meter substrate 20 is mounted with various electronic components and wirings for realizing various functions in the vehicle display device 1. The meter substrate 20 is formed into a substantially rectangular plate shape and size that can be accommodated in the internal space 110 of the accommodation case 11. The meter substrate 20 is assembled to the back side in the depth direction of the housing case 11 via a fixing member such as a screw.

  The front glass 30 is a protective member having light permeability that transmits light, and is assembled to the front side in the depth direction of the facing member 12. The front glass 30 is locked and fixed to the facing member 12 via a locking portion. The front glass 30 covers and protects the front side in the depth direction of the display screen 430, that is, the eye point EP side. The front glass 30 transmits the display screen 430 of the liquid crystal display 43.

  The liquid crystal display device 40 is a device that displays an image. The liquid crystal display device 40 is housed in the housing case 11 with the display screen 430 positioned on the front side in the depth direction. The liquid crystal display device 40 includes a backlight substrate 41, a backlight 42, and one liquid crystal display 43. The backlight substrate 41 controls the backlight 42. The backlight substrate 41 is provided on the back side of the backlight 42 in the depth direction. The backlight substrate 41 is connected to the backlight 42 and controls the light emission of the backlight 42. The backlight 42 irradiates the liquid crystal display 43 with light. The backlight 42 includes a light emitting diode and the like, and is disposed to face the back side of the liquid crystal panel 13a in the depth direction. The backlight 42 irradiates the liquid crystal display 43 with light.

  The liquid crystal display 43 is a display using a known liquid crystal technology, and includes, for example, an RGB color filter, a liquid crystal cell, a polarizing filter, and the like. The liquid crystal display 43 has a display screen 430 that displays a color image on the front side in the depth direction. The display screen 430 includes an exposed region 430 a exposed outside the housing 10 and a non-exposed region 430 b not exposed outside the housing 10. The exposed area 430a is an area that can be viewed from the eye point EP. The non-exposed area 430b is an area that is not visible when viewed from the eye point EP. The non-exposed region 430b is formed in a frame shape and a rectangle. The non-exposed region 430b is covered with the covering wall 121a of the facing member 12. That is, the non-exposed region 430b overlaps the covering wall 121a of the turning member 12 when viewed from the eye point EP.

  The detection unit 50 detects the light emission state of the display screen 430. For example, an illuminance sensor 51 and an RGB sensor 52 are used as the detection unit 50. The illuminance sensor 51 is a sensor that detects the degree of brightness (illuminance). The illuminance sensor 51 is provided between the non-exposed region 430b of the display screen 430 and the covering wall 121a. That is, the illuminance sensor 51 is disposed in the sensor housing space 121e. The illuminance sensor 51 may be provided directly in the non-exposed area 430b of the display screen 430, or may be provided with a gap between the non-exposed area 430b. For example, one illuminance sensor 51 is used, and is disposed in the sensor housing space 121e on the upper side in the vertical direction in the sensor housing space 121e of the holding unit 121. The illuminance sensor 51 detects the degree of brightness (illuminance) of the non-exposed area 430b of the display screen 430. The illuminance sensor 51 detects the illuminance based on, for example, a test image described later displayed in the non-exposed area 430b. The illuminance sensor 51 is connected to the GDC microcomputer 60 and outputs the detected illuminance of the non-exposed area 430 b to the GDC microcomputer 60.

  The RGB sensor 52 is a sensor that detects the brightness levels of red (R), green (G), and blue (B) (also referred to as “RGB brightness levels”). The RGB sensor 52 is provided between the non-exposed region 430b of the display screen 430 and the covering wall 121a. That is, the RGB sensor 52 is disposed in the sensor housing space 121e. The RGB sensor 52 may be provided directly in the non-exposed area 430b of the display screen 430, or may be provided with a gap between the RGB sensor 52 and the non-exposed area 430b. One RGB sensor 52 is used, for example, and is arranged in the sensor housing space 121e on the lower side in the vertical direction in the sensor housing space 121e of the holding unit 121. The RGB sensor 52 detects the brightness levels of red, green, and blue in the non-exposed area 430b of the display screen 430. For example, the RGB sensor 52 detects the brightness level of RGB based on the test image displayed in the non-exposed area 430b. The RGB sensor 52 is connected to the GDC microcomputer 60 and outputs the detected RGB brightness level of the non-exposed area 430 b to the GDC microcomputer 60.

  The GDC microcomputer 60 is connected to the liquid crystal display device 40 and controls the liquid crystal display device 40. The GDC microcomputer 60 includes an electronic circuit mainly composed of a well-known microcomputer including a CPU, a ROM that constitutes a storage unit, a RAM, and an interface. The GDC microcomputer 60 stores a test image for detecting a failure of the liquid crystal display device 40 in the storage unit. The GDC microcomputer 60 displays a test image for detecting the illuminance in the non-exposed area 430b of the display screen 430. For example, the GDC microcomputer 60 displays a test image when an ACC (accessory) power source or an IG (ignition) power source of the vehicle is turned on. The GDC microcomputer 60 displays test images at regular intervals after the ACC power source or IG power source is turned on. Note that the GDC microcomputer 60 may continuously display test images after the ACC power source or the IG power source is turned on. The GDC microcomputer 60 is connected to the illuminance sensor 51 and determines a failure of the liquid crystal display device 40 based on the illuminance of the display screen 430 output from the illuminance sensor 51. For example, the GDC microcomputer 60 compares the predetermined first reference value with the illuminance of the display screen 430 output from the illuminance sensor 51, and when the illuminance of the display screen 430 is less than the first reference value, the liquid crystal display It is determined that 43 is out of order. The GDC microcomputer 60 determines that the illuminance on the display screen 430 is normal when the illuminance on the display screen 430 is greater than or equal to the first reference value. As the first reference value, for example, an optimum value obtained by a test or the like, an initial value detected at the time of shipment of the vehicle display device 1, and the like are used.

  The GDC microcomputer 60 displays a test image for detecting the brightness level of RGB in the non-exposed area 430b of the display screen 430. The GDC microcomputer 60 is connected to the RGB sensor 52 and determines a failure of the liquid crystal display device 40 based on the RGB brightness level of the display screen 430 output from the RGB sensor 52. For example, the GDC microcomputer 60 compares the second reference value indicating a predetermined red reference value with the degree of red brightness of the display screen 430 output from the RGB sensor 52. Then, when the degree of red brightness of the display screen 430 is less than the second reference value, the GDC microcomputer 60 determines that the output system that outputs the red color of the liquid crystal display device 40 has failed. This failure occurs, for example, when a problem such as disconnection occurs in a signal transmission path that outputs red. The GDC microcomputer 60 determines that the output system for outputting red of the liquid crystal display device 40 is normal when the degree of red brightness of the display screen 430 is equal to or greater than the second reference value. The GDC microcomputer 60 determines a failure for green and blue as well as red. As the second reference value, for example, an optimum value obtained by a test or the like, an initial value detected at the time of shipment of the vehicle display device 1, and the like are used.

  Next, an exemplary operation of the liquid crystal display device 40 will be described with reference to FIG. The GDC microcomputer 60 determines whether the ACC power source or the IG power source is turned on (step S1). When the ACC power source or the IG power source is turned on (step S1; Yes), the GDC microcomputer 60 displays a test image in the non-exposed area 430b of the display screen 430 (step S2). For example, the GDC microcomputer 60 displays a test image for detecting the illuminance in the non-exposed area 430 b in the vicinity of the illuminance sensor 51. In addition, the GDC microcomputer 60 displays a test image for detecting the brightness level of RGB in the non-exposed area 430 b in the vicinity of the RGB sensor 52. Next, the GDC microcomputer 60 determines whether or not the illuminance on the display screen 430 is normal (step S3). The GDC microcomputer 60 determines that the illuminance on the display screen 430 is normal when the illuminance on the display screen 430 is greater than or equal to the first reference value. When the illuminance on the display screen 430 is normal (step S3; Yes), the GDC microcomputer 60 determines whether the RGB brightness level on the display screen 430 is normal (step S4). For example, when the degree of red brightness of the display screen 430 is equal to or higher than the second reference value, the GDC microcomputer 60 determines that the output system that outputs red of the liquid crystal display device 40 is normal. When the brightness level of RGB on the display screen 430 is normal (step S4; Yes), the GDC microcomputer 60 determines whether the ACC power source or the IG power source is turned off (step S5). When the ACC power source or the IG power source is turned off (step S5; Yes), the GDC microcomputer 60 ends the processing. When the ACC power source or the IG power source is not turned off (step S5; No), the GDC microcomputer 60 returns to step S2 and again The test image is displayed in the non-exposed area 430b of the display screen 430.

  In step S1, the GDC microcomputer 60 waits until the ACC power source or the IG power source is turned on when the ACC power source or the IG power source is not turned on (step S1; No). In step S3 described above, the GDC microcomputer 60 determines that the illuminance of the display screen 430 is not normal when the illuminance of the display screen 430 is less than the first reference value. If the illuminance on the display screen 430 is not normal (step S3; No), the GDC microcomputer 60 notifies a failure of the liquid crystal display device 40 (step S6). For example, the GDC microcomputer 60 notifies the failure by voice via a voice output unit (not shown). In step S4 described above, for example, when the degree of red brightness of the display screen 430 is less than the second reference value, the GDC microcomputer 60 determines that the output system that outputs red of the liquid crystal display device 40 is not normal. . If the brightness level of RGB on the display screen 430 is not normal (step S4; No), the GDC microcomputer 60 notifies a failure of the liquid crystal display device 40 (step S6).

  As described above, the vehicle display device 1 according to the embodiment includes the liquid crystal display device 40, the housing 10, the detection unit 50, and the GDC microcomputer 60. The liquid crystal display device 40 has a display screen 430 that is mounted on a vehicle and displays an image. The housing 10 accommodates the liquid crystal display device 40. The detection unit 50 detects the light emission state of the display screen 430. The GDC microcomputer 60 determines a failure of the liquid crystal display device 40 based on the detection result of the detection unit 50. The display screen 430 includes an exposed region 430 a exposed outside the housing 10 and a non-exposed region 430 b not exposed outside the housing 10. The detection unit 50 detects the light emission state of the non-exposed area 430b.

  With this configuration, the vehicular display device 1 can display a test image different from the image displayed in the exposed area 430a in the non-exposed area 430b. And the display apparatus 1 for vehicles can detect the failure of the liquid crystal display device 40 appropriately by detecting the test image displayed on the non-exposed area 430b by the detection unit 50.

  In the vehicular display device 1, the housing 10 is assembled in a box shape and a housing case 11 provided with an opening 111 in which the liquid crystal display device 40 is disposed, and in a frame shape and surrounding the opening 111. It is comprised including the turning member 12 to be seen. The facing member 12 includes a covering wall 121a that covers the non-exposed region 430b of the display screen 430 in a state assembled to the opening 111. The detection unit 50 is provided between the covering wall 121a and the non-exposed region 430b. With this configuration, the vehicular display device 1 can hide the detection unit 50 by the covering wall 121a when viewed from the eye point EP, and thus can improve design.

  In the vehicle display device 1, the non-exposed area 430 b displays a test image for detecting a failure of the liquid crystal display device 40. And the detection part 50 detects a light emission state based on the test image displayed on the non-exposed area | region 430b. With this configuration, the vehicular display device 1 can detect a failure with high accuracy by detecting a test image different from the image displayed in the exposed region 430a by the detection unit 50.

[Modification]
Next, a modification of the embodiment will be described. Although the liquid crystal display device 40 has been described with respect to the example including the single liquid crystal display 43, the liquid crystal display device 40 is not limited thereto, and may be configured to include the plurality of liquid crystal displays 43. The liquid crystal display device 40A according to the modification includes, for example, a first liquid crystal display 43A as a first display unit and a second liquid crystal display 43B as a second display unit as shown in FIG. . The first liquid crystal display 43A and the second liquid crystal display 43B are different displays. The first liquid crystal display 43A has a first display screen 430A for displaying a color image on the front side in the depth direction. The first display screen 430 </ b> A includes a first exposed region 430 c that is exposed to the outside of the housing 10 and a first non-exposed region 430 d that is not exposed to the outside of the housing 10. The second liquid crystal display 43B has a second display screen 430B that displays a color image on the front side in the depth direction. The second display screen 430 </ b> B includes a second exposed region 430 e that is exposed to the outside of the housing 10 and a second non-exposed region 430 f that is not exposed to the outside of the housing 10. Here, although the 1st display screen 430A and the 2nd display screen 430B are formed in the equivalent magnitude | size, it is not limited to this. The illuminance sensor 51A and the RGB sensor 52A detect the light emission state of the first non-exposed area 430d. The illuminance sensor 51B and the RGB sensor 52B detect the light emission state of the second non-exposed region 430f.

  The GDC microcomputer 60 determines the failure of the first liquid crystal display 43A based on the illuminance of the first display screen 430A output from the illuminance sensor 51A. Further, the GDC microcomputer 60 determines the failure of the first liquid crystal display 43A based on the RGB brightness level of the first display screen 430A output from the RGB sensor 52A. Further, the GDC microcomputer 60 determines a failure of the second liquid crystal display 43B based on the illuminance of the second display screen 430B output from the illuminance sensor 51B. Further, the GDC microcomputer 60 determines the failure of the second liquid crystal display 43B based on the RGB brightness level of the second display screen 430B output from the RGB sensor 52B. When the first liquid crystal display 43A fails, the GDC microcomputer 60 displays on the second liquid crystal display 43B an image to be displayed on the first liquid crystal display 43A (for example, an image showing vehicle speed, handover, etc.). Further, when the second liquid crystal display 43B fails, the GDC microcomputer 60 displays an image (for example, an image such as the engine speed) displayed on the second liquid crystal display 43B on the first liquid crystal display 43A.

  As described above, in the vehicle display device 1A according to the modification, the liquid crystal display device 40A includes the first liquid crystal display 43A that displays an image and the second liquid crystal display 43B that is different from the first liquid crystal display 43A. The Then, when the first liquid crystal display 43A fails, the GDC microcomputer 60 displays an image to be displayed on the first liquid crystal display 43A on the second liquid crystal display 43B. With this configuration, the vehicle display device 1A can display necessary information about the vehicle as much as possible even if the first liquid crystal display 43A breaks down, so that fault tolerance can be improved.

  In addition, although the non-exposed area | region 430b of the display screen 430 demonstrated the example formed in frame shape, it is not limited to this. The non-exposed region 430b may have any shape as long as it is a region that is not exposed to the outside of the housing 10. In the non-exposed region 430b, for example, the upper right corner and the upper left corner of the display screen 430 may be formed in a triangular shape. In this case, the non-exposed region 430b is covered with a triangular covering wall (not shown).

  Moreover, although the detection part 50 demonstrated the example using the illumination intensity sensor 51 and the RGB sensor 52, it is not limited to this. The detection unit 50 may use either the illuminance sensor 51 or the RGB sensor 52, or may detect the light emission state of the display screen 430 using a sensor different from the illuminance sensor 51 and the RGB sensor 52.

  Moreover, although the example which is the liquid crystal display device 40 demonstrated the display part, it is not limited to this, Organic EL (Electro-Luminescence) etc. may be sufficient.

  In addition, the example in which the non-exposed region 430b is a region hidden by the turn-back member 12 when viewed from the eye point EP has been described, but is not limited thereto, for example, a region hidden by the housing case 11 when viewed from the eye point EP It may be.

  Moreover, although the illumination sensor 51 demonstrated the example provided in the non-exposed area | region 430b of the display screen 430, it is not limited to this. The illuminance sensor 51 may be provided at other positions as long as the light emission state of the non-exposed area 430b can be detected.

DESCRIPTION OF SYMBOLS 1, 1A Display apparatus 10 for vehicles Case 11 Housing | casing case (main-body part)
111 Opening part 12 Look-back member 121a Cover wall 40, 40A Liquid crystal display device (display part)
43A 1st liquid crystal display (1st display part)
43B 2nd liquid crystal display (2nd display part)
430 display screen 430A first display screen 430B second display screen 430a exposed region 430c first exposed region 430e second exposed region 430b unexposed region 430d first unexposed region 430f second unexposed region 50 detector 60 GDC microcomputer (control) Part)

Claims (4)

A display unit mounted on a vehicle and having a display screen for displaying an image;
A housing for housing the display unit;
A detection unit for detecting a light emission state of the display screen;
A control unit for determining a failure of the display unit based on a detection result of the detection unit,
The display screen is configured to include an exposed region exposed outside the housing, and a non-exposed region not exposed outside the housing,
The vehicle display device, wherein the detection unit detects a light emission state of the non-exposed area. The housing is configured to include a main body portion that is formed in a box shape and provided with an opening in which the display portion is disposed, and a turning member that is formed in a frame shape and is assembled to surround the opening portion.
The facing member is configured to include a cover wall that covers the non-exposed region in a state assembled to the opening.
The vehicle display device according to claim 1, wherein the detection unit is provided between the cover wall and the non-exposed region. The non-exposed area displays a test image for detecting a failure of the display unit,
The vehicle display device according to claim 1, wherein the detection unit detects the light emission state based on the test image displayed in the non-exposed area. The display unit includes a first display unit that displays an image and a second display unit that is different from the first display unit,
The said control part displays the image displayed on the said 1st display part on the said 2nd display part when the said 1st display part fails, The vehicle display apparatus of any one of Claims 1-3 .

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