Vehicle display device

Abstract

To provide a display device for a vehicle which can standardize a part of units.SOLUTION: A display device 1 for a vehicle comprises: a display device unit U1; and a combiner unit U2. The display device unit includes: an image display device 3; an accommodation part 6 which accommodates a lower display area 30d; a reflection member 4 which is accommodated in the accommodation part and is rotatable within a prescribed range; a motor 8 which rotates the reflection member; and a controller 9 which controls the image display device and the motor. The combiner unit includes: a hood part 7; and a combiner 5 which is arranged at an eye-point side with respect to an upper display area 30u. The reflection member reflects display light Lt of the lower display area toward the combiner, and rotation direction of the reflection member is a direction where projection position of the display light is changed in a vertical direction of the vehicle. The controller configures display position of the image in the vertical direction at the lower display area so that the motor can rotate the reflection member until the rotation position according to the eye-point EP.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present invention relates to a display device for a vehicle. [Background technology]

[0002] Patent Document 1 discloses a display device including a mirror that reflects light from an image display unit, and a half mirror that is interposed between the image display unit and the mirror and transmits the light from the image display unit while reflecting the light reflected by the mirror toward a viewer. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-154004 A Summary of the Invention [Problem to be solved by the invention]

[0004] Vehicle display devices need to be designed according to the requirements of the vehicle. However, designing the entire device from scratch for each vehicle model requires a lot of design work. If some units can be made common across multiple vehicle models, it will be possible to reduce the number of design work hours.

[0005] An object of the present invention is to provide a vehicle display device capable of sharing some of its units. [Means for solving the problem]

[0006] The vehicle display device of the present invention comprises a display device unit including an image display device, and a combiner unit assembled to the display device unit, the display device unit having an upper display area and a lower display area for displaying an image, the image display device being arranged with the upper display area facing an eye point of the vehicle, a housing section housing the lower display area and opening upward, a reflective member housed in the housing section and rotatable within a predetermined range, a motor for rotating the reflective member, and a control section for controlling the image display device and the motor, and the combiner unit comprises the vehicle has a hood portion that covers the upper display area from the front of the vehicle, and a combiner that is arranged on the eye point side of the upper display area, the reflective member is arranged on the eye point side of the lower display area and the combiner, and reflects the display light of the lower display area toward the combiner, the rotation direction of the reflective member is a direction that changes the projection position of the display light in the vertical direction of the vehicle, and the control unit sets the display position of the image in the vertical direction of the image in the lower display area so that the motor can rotate the reflective member to a rotation position corresponding to the eye point. Effect of the Invention

[0007] The vehicle display device according to the present invention has a display device unit including an image display device, and a combiner unit assembled to the display device unit. The control unit of the display device unit sets the display position of the image in the vertical direction of the image in the lower display area so that the motor can rotate the reflective member to a rotation position according to the eye point. The vehicle display device according to the present invention has the effect of being able to share the display device unit. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing a display device for a vehicle according to an embodiment. [Diagram 2] FIG. 2 is a front view of the combiner unit according to the embodiment. [Diagram 3]FIG. 3 is a cross-sectional view of the display device for a vehicle according to the embodiment. [Figure 4] FIG. 4 is a cross-sectional view of the display device for a vehicle according to the embodiment. [Diagram 5] FIG. 5 is a plan view of the image display device according to the embodiment. [Figure 6] FIG. 6 is a diagram illustrating an example of a combiner unit. [Figure 7] FIG. 7 is a diagram illustrating an example of a combiner unit. [Figure 8] FIG. 8 is a diagram illustrating an example of a combiner unit. [Figure 9] FIG. 9 is a diagram showing the optical path in the standard state. [Figure 10] FIG. 10 is a diagram showing the display range after adjustment according to the embodiment. [Figure 11] FIG. 11 is a diagram showing the optical path after adjustment according to the embodiment. [Figure 12] FIG. 12 is a diagram showing the optical path in the standard state. [Figure 13] FIG. 13 is a diagram illustrating the display range after adjustment according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, a vehicle display device according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiment. In addition, the components in the following embodiments include those that a person skilled in the art can easily imagine or that are substantially the same.

[0010] [Embodiment] An embodiment will be described with reference to Fig. 1 to Fig. 13. The embodiment relates to a display device for a vehicle. Fig. 1 is a diagram showing a display device for a vehicle according to an embodiment, Fig. 2 is a front view of a combiner unit according to an embodiment, Figs. 3 and 4 are cross-sectional views of the display device for a vehicle according to an embodiment, Fig. 5 is a plan view of an image display device according to an embodiment, Figs. 6 to 8 are diagrams showing an example of a combiner unit, Fig. 9 is a diagram showing an optical path in a standard state, and Fig. 10 is a diagram showing a display range after adjustment in the embodiment.

[0011] FIG. 11 is a diagram showing the optical path after adjustment in the embodiment, FIG. 12 is a diagram showing the optical path in a standard state, and FIG. 13 is a diagram showing the display range after adjustment in the embodiment.

[0012] The vehicle display device 1 of this embodiment is mounted on a vehicle 100 such as an automobile. The vehicle display device 1 of this embodiment is a meter device capable of composite display using a real image Ri and a virtual image Vi. The illustrated vehicle display device 1 is disposed in an instrument panel 120. The vehicle display device 1 is disposed, for example, such that a display image is positioned above a steering wheel 130 as viewed from the driver.

[0013] As shown in FIG. 1 to FIG. 3, the vehicle display device 1 of the present embodiment includes a display device unit U1, a combiner unit U2, a cover unit U3, and a camera 10. The combiner unit U2 and the cover unit U3 are designed according to vehicle requirements. For example, the display height H and the inclination angle of the combiner 5 shown in FIG. 2 are determined according to the shape of the instrument panel 120, the position of the steering wheel 130, and the like. For example, the position and shape of the cover 62 of the cover unit U3 are determined according to the display height H and the inclination angle of the combiner 5. The display height H may be the height of the combiner 5 in the vehicle vertical direction Z, or may be the height of the combiner 5 in the image vertical direction GV as viewed from the eye point EP.

[0014] As described below, in the vehicle display device 1 of this embodiment, the display device unit U1 can be made common to the combiner unit U2 and the cover unit U3 of different specifications. Therefore, the number of design steps for the vehicle display device 1 can be reduced.

[0015] As shown in Fig. 3, the display device unit U1 has a storage section 6, an image display device 3, a reflecting member 4, a motor 8, and a control section 9. The storage section 6 is stored in an instrument panel 120. The storage section 6 has a cylindrical shape with a bottom and an opening facing upward. The storage section 6 is made of a material having light-blocking properties. The opening of the storage section 6 is closed by a cover unit U3.

[0016] The cover unit U3 has a lid portion 60 and a cover 62. The lid portion 60 is assembled to the storage portion 6 to form a storage space. The lid portion 60 has a through hole 61. The cover 62 is disposed in the through hole 61 and closes the through hole 61. The through hole 61 is located on the rear side X2, i.e., the eye point EP side, with respect to the image display device 3. The cover 62 is a transparent member and is molded from, for example, resin. The cover 62 has a curved shape that curves toward the inside of the storage portion 6. The cover 62 is formed to reflect external light toward a light-shielding wall. For example, the cover 62 reflects external light that has passed through the windshield 110 toward a wall surface of the hood portion 7 or a direction other than the eye point.

[0017] In the following description, the front side in the vehicle longitudinal direction X is referred to as the "front side X1," and the rear side in the vehicle longitudinal direction X is referred to as the "rear side X2." In addition, the upper side in the vehicle vertical direction Z is referred to as the "upper side Z1," and the lower side in the vehicle vertical direction Z is referred to as the "lower side Z2." The image vertical direction of the image displayed by the vehicle display device 1 corresponds to the vehicle vertical direction Z.

[0018] The image display device 3 is a device that displays an image, and is, for example, a liquid crystal display device such as a TFT-LCD (Thin Film Transistor-Liquid Crystal Display). The image display device 3 has a backlight unit, and outputs display light by light from the backlight unit. As shown in FIG. 3, the image display device 3 has an upper display area 30u and a lower display area 30d. The upper display area 30u and the lower display area 30d are light-emitting areas that output display light. The upper display area 30u is located on the upper side Z1 of the display surface 30 of the image display device 3. The lower display area 30d is located on the lower side Z2 of the display surface 30.

[0019] The image display device 3 is disposed with the upper display region 30u facing the eye point EP. The image display device 3 is, for example, fixed to and held by the housing section 6. As shown in FIG. 3, the housing section 6 holds the image display device 3 by housing the lower display region 30d. The image display device 3 is disposed at an end of the front side X1 of the housing section 6, with the display surface 30 facing the rear side X2. The upper display region 30u protrudes upward from the housing section 6.

[0020] The reflective member 4 is disposed inside the housing portion 6. The reflective member 4 is disposed at an end portion of the rear side X2 of the housing portion 6, and faces the lower display region 30d. The reflective member 4 is, for example, a flat mirror.

[0021] The reflecting member 4 of this embodiment is supported so as to be freely rotatable. The rotation direction of the reflecting member 4 is a direction in which the inclination angle of the reflecting member 4 with respect to the vehicle vertical direction Z is changed, as shown by an arrow AR1 in FIG. 3. The reflecting member 4 is rotatable within a predetermined range. The predetermined range may be, for example, an angle range of 10°. The motor 8 rotates the reflecting member 4 to adjust the inclination angle of the reflecting member 4 to a desired angle. The motor 8 is, for example, a stepping motor.

[0022] The control unit 9 controls the image display device 3 and the motor 8. The control unit 9 is, for example, a computer including a calculation unit, a memory, a communication interface, etc. The control unit 9 controls the motor 8 and the image display device 3 according to, for example, a program stored in advance. The vehicle display device 1 preferably has a non-volatile memory for storing various data and programs.

[0023] Camera 10 captures an image of driver 200 to detect the position of eye point EP. The illustrated camera 10 is disposed at the top center (or to the left or right, etc.) within the meter display unit, and is installed so as to be able to capture an image of driver 200. The position of eye point EP in the vehicle vertical direction Z is detected by image recognition of an image generated by camera 10. Camera 10 may also calculate the position of eye point EP in the vehicle width direction. Camera 10 can output the coordinate values ​​of the detected eye point EP.

[0024] The combiner unit U2 is assembled to the display device unit U1. The combiner unit U2 has a combiner 5 and a hood portion 7. The hood portion 7 has light-shielding properties and covers the upper display area 30u from the front and above of the vehicle. The hood portion 7 may be fixed to the housing portion 6. The upper display area 30u of the image display device 3 is housed in the internal space 70 of the hood portion 7. The hood portion 7 is formed so as to be able to shield the upper display area 30u from external light.

[0025] The combiner 5 is disposed so as to cover the internal space 70 of the hood portion 7. That is, the combiner 5 is disposed so as to shield the internal space 70 as viewed from the eyepoint EP. The combiner 5 may be fixed to the housing portion 6, or may be fixed to the hood portion 7. The upper display area 30u of the image display device 3 is located behind the combiner 5 as viewed from the eyepoint EP. In other words, the combiner 5 is disposed on the eyepoint EP side with respect to the upper display area 30u.

[0026] The combiner 5 is, for example, a half mirror. The combiner 5 is a reflective member that can transmit light incident from the back side and reflect light incident from the front side. The combiner 5 has a reflective surface 5a facing the eyepoint EP. The reflective surface 5a is disposed on either the front surface of the combiner 5 facing the eyepoint EP or the back surface facing the opposite side to the eyepoint EP. The reflective surface 5a may be subjected to a coating treatment or the like that reflects light toward the eyepoint EP. A reflection suppression unit 5b is provided on the back surface of the combiner 5. The reflection suppression unit 5b suppresses the display light of the upper display region 30u from being reflected toward the front side X1. The reflection suppression unit 5b may be a reflection suppression surface treatment for the combiner 5 or may be a sheet attached to the combiner 5.

[0027] As shown in FIG. 3, the reflecting member 4 faces the reflecting surface 5a of the combiner 5 via the through hole 61 of the cover unit U3. As shown in FIG. 4, the reflecting member 4 reflects the display light Lt output from the lower display region 30d toward the combiner 5. The reflecting surface 5a of the combiner 5 reflects the display light Lt of the lower display region 30d toward the eye point EP. The virtual image Vi viewed at the eye point EP is formed at a position X1 in front of the reflecting surface 5a. The virtual image Vi is a virtual image of the lower display region 30d and includes an image displayed in the lower display region 30d.

[0028] The projection position of the display light Lt on the combiner 5 changes according to the tilt angle of the reflecting member 4. When the tilt angle of the reflecting member 4 increases, the projection position of the display light Lt on the combiner 5 moves upward. On the other hand, when the tilt angle of the reflecting member 4 decreases, the projection position of the display light Lt on the combiner 5 moves downward.

[0029] As shown in FIG. 2, the vehicle display device 1 of this embodiment performs composite display using a real image Ri and a virtual image Vi. The real image Ri is an image displayed in the upper display region 30u of the image display device 3. The display light of the upper display region 30u passes through the combiner 5 toward the eye point EP. The virtual image Vi is a virtual image generated by the display light Lt of the lower display region 30d. That is, the virtual image Vi is an image visually recognized by the display light Lt reflected by the reflecting member 4 and the combiner 5 toward the eye point EP. The virtual image Vi is displayed above the real image Ri in the image vertical direction GV.

[0030] A telltale display area 51 is provided at an end of the combiner 5 in the horizontal direction GH of the image. The telltales are displayed by a display device arranged on the rear side of the display area 51, for example.

[0031] In the vehicle display device 1 of this embodiment, different combiner units U2 can be attached to a common display device unit U1. In order to accommodate combiner units U2 with different specifications, the control unit 9 of this embodiment is configured to adjust the display position of an image in the lower display area 30d. As shown in FIG. 5, the upper display area 30u and the lower display area 30d are different areas on the display surface 30. The area between the upper display area 30u and the lower display area 30d is covered by, for example, a mask member or mask printing.

[0032] A display range 30v in the image vertical direction GV is set in the lower display area 30d. The display range 30v is a range in the lower display area 30d used for image display for the virtual image Vi. The display light Lt of the lower display area 30d is output from the display range 30v. The height W1 of the display range 30v is smaller than the height W0 of the lower display area 30d. That is, the control unit 9 displays an image in the display range 30v, which is a part of the lower display area 30d. The display range 30v shown in FIG. 5 is located at the center of the lower display area 30d in the image vertical direction GV. The display device unit U1 of this embodiment can be combined with any of a plurality of combiner units U2 having different display heights H, as described below.

[0033] 6 to 8 show three combiner units U2 with different display heights H. The display height H of the combiner unit U2 in FIG. 6 has a value of H1. The display height H of the combiner unit U2 in FIG. 7 has a value of H2, which is smaller than the value H1. The display height H of the combiner unit U2 in FIG. 8 has a value of H3, which is smaller than the value H2. That is, the display height H of the combiner unit U2 in FIG. 6 is relatively the largest, and the display height H of the combiner unit U2 in FIG. 8 is relatively the smallest.

[0034] The control unit 9 sets the display range 30v in the lower display area 30d according to, for example, the display height of the combiner 5. The display range 30v is set based on, for example, a set value stored in a non-volatile memory. As described below, this set value is determined so as to appropriately associate the range in which the optical path of the display light Lt can be adjusted up and down by rotating the reflecting member 4 with the necessary optical path range determined by the eye range ER of the vehicle 100.

[0035] 9 shows the optical path of the display light Lt in a standard state where the display range 30v is not optimized for the combiner unit U2. The display range 30v in the standard state is, for example, the center position in the lower display area 30d. The rotation position of the reflective member 4 in FIG. 9 is a neutral position in a predetermined rotatable range. The neutral position is a position where the same angle of rotation is allowed in both the clockwise and counterclockwise directions.

[0036] 9 shows the eye range ER, the upper end position EPu, and the lower end position EPd of the vehicle 100. The eye range ER is a statistical representation of the distribution of the driver's eye positions, and is an area along the vehicle width direction and the vehicle up-down direction Z. The relative position of the eye range ER with respect to the vehicle display device 1 may differ depending on the vehicle model, etc. The upper end position EPu is the position of the upper end eye point EP in the eye range ER. The lower end position EPd is the position of the lower end eye point EP in the eye range ER.

[0037] The optical path of the display light Lt shown in Fig. 9 corresponds to an eye point EP closer to the lower end position EPd than the center of the eye range ER. Such a state occurs, for example, for the combiner unit U2 shown in Fig. 6. The combiner unit U2 in Fig. 6 has a large display height H. In this case, in the standard state, the projection position of the display light Lt with respect to the combiner 5 is slightly lower than the optimal position.

[0038] FIG. 10 shows a display range 30v optimized for the combiner unit U2 of FIG. 6. The control unit 9 sets the display range 30v based on the setting value read from the non-volatile memory. The display range 30v of FIG. 10 is set above the center of the lower display area 30d in the image vertical direction GV. FIG. 11 shows the optical path of the display light Lt corresponding to the display range 30v of FIG. 10. In FIG. 11, the rotation position of the reflecting member 4 is a neutral position. The optical path of FIG. 11 corresponds to the eye point EP at the center of the eye range ER. In other words, when viewed from the eye point EP at the center of the eye range ER, the virtual image Vi is displayed at an appropriate position with respect to the real image Ri as shown in FIG. 6. In this specification, such a projection position of the display light Lt is referred to as a "reference position".

[0039] The reference position is a projection position of the display light Lt with respect to the combiner 5, and is a position where the position of the virtual image Vi is optimized when viewed from the eye point EP at the center of the eye range ER. When the projection position is the reference position, the motor 8 rotates the reflecting member 4, thereby enabling optimization of the projection position for each eye point EP. That is, for all eye points EP from the upper end position EPu to the lower end position EPd, the motor 8 can rotate the reflecting member 4 to a position corresponding to the eye point EP. In other words, the motor 8 can optimize the position of the virtual image Vi for all eye points EP in the eye range ER.

[0040] Fig. 12 shows the optical path of the display light Lt in a standard state for the combiner unit U2 in Fig. 8. The combiner unit U2 in Fig. 8 has a small display height H. In this case, in the standard state, the projection position of the display light Lt on the combiner 5 is slightly above the optimal position.

[0041] Fig. 13 shows a display range 30v optimized for the combiner unit U2 of Fig. 8. The control unit 9 sets the display range 30v based on the setting value read from the non-volatile memory. The display range 30v in Fig. 13 is set below the center of the lower display region 30d in the image vertical direction GV. By using such a display range 30v, the projection position of the display light Lt with respect to the combiner 5 is adjusted to the reference position.

[0042] In the combiner unit U2 in Fig. 7, when the display range 30v is at the center of the lower display region 30d, the projection position of the display light Lt on the combiner 5 becomes the reference position. Therefore, the setting value for the vehicle display device 1 having the combiner unit U2 in Fig. 7 is a value that sets the display range 30v to the center position in the vertical direction GV of the image.

[0043] As described above, the control unit 9 sets the display position of the image vertical direction GV in the lower display area 30d so that the projection position of the display light on the combiner 5 is set as the reference position with the rotation position of the reflection member 4 in the neutral position. This makes it possible to adjust the display position of the virtual image Vi by the motor 8 according to the eye position of the driver 200 for either the upper side Z1 or the lower side Z2 of the vehicle vertical direction Z. The control unit 9 rotates the reflection member 4 by the motor 8 based on the coordinate value of the eye point EP acquired from the camera 10. The rotation amount of the motor 8 at this time is determined, for example, based on a table stored in advance. Note that this table may be a unique table according to the product number of the combiner unit U2.

[0044] The process of storing the set value of the display range 30v in the vehicle display device 1 is performed, for example, in a factory that manufactures the vehicle display device 1. In this case, it is preferable that the set value of the display range 30v is determined in advance for each of the combiner units U2 having different part numbers. For example, the combiner units U2 shown in Figs. 6 to 8 each have a different part number and have different set values ​​of the display range 30v. In this case, it is preferable that the vehicle display device 1 is shipped in a state in which a set value optimized for the combiner unit U2 is stored. The control unit 9 of the vehicle display device 1 sets the display range 30v based on the set value according to the combiner 5 assembled to the display device unit U1.

[0045] The step of storing the set value may be performed after the vehicle display device 1 is installed in the vehicle 100. In this case, for example, the set value is determined by an operator and stored in the memory. Such an adjustment method is effective when the same combiner unit U2 is installed in different vehicle models.

[0046] As described above, the vehicle display device 1 of this embodiment includes a display device unit U1 and a combiner unit U2. The display device unit U1 includes an image display device 3, a storage section 6, a reflecting member 4, a motor 8, and a control section 9. The image display device 3 includes an upper display area 30u and a lower display area 30d for displaying an image, and the upper display area 30u is disposed facing the eye point EP of the vehicle 100. The storage section 6 stores the lower display area 30d and opens upward. The reflecting member 4 is stored in the storage section 6 and can rotate within a predetermined range. The motor 8 rotates the reflecting member 4. The control section 9 controls the image display device 3 and the motor 8.

[0047] The combiner unit U2 has a hood portion 7 and a combiner 5. The hood portion 7 covers the upper display area 30u from the front of the vehicle. The combiner 5 is disposed on the side of the eye point EP with respect to the upper display area 30u. The reflecting member 4 is disposed on the side of the eye point EP with respect to the lower display area 30d and the combiner 5, and reflects the display light Lt of the lower display area 30d toward the combiner 5. The rotation direction of the reflecting member 4 is a direction that changes the projection position of the display light Lt in the vehicle vertical direction Z. The control unit 9 sets the display position of the image in the image vertical direction GV in the lower display area 30d according to the combiner 5 assembled to the display device unit U1. The vehicle display device 1 of this embodiment can share the display device unit U1 with different combiner units U2.

[0048] The mounting conditions of the vehicle display device 1 for the vehicle 100 differ for each vehicle model. The hood section 7 and the combiner 5 are individually designed according to the mounting conditions. Under such conditions, if the storage section 6 and the reflective member 4 were individually designed to adjust the virtual image display affected by the mounting position, a large number of design steps would be required. In contrast, in the vehicle display device 1 of this embodiment, the display area for the virtual image Vi in the image display device 3 is set wide, and the display range 30v is adjusted up and down. As a result, the display device unit U1 including the storage section 6, the reflective member 4, and the motor 8 is standardized.

[0049] The control unit 9 of the present embodiment sets the display position of the image in the image vertical direction GV in the lower display area 30d so that the projection position of the display light Lt on the combiner 5 is a predetermined reference position with the rotational position of the reflection member 4 in a neutral position. Therefore, the vehicle display device 1 of the present embodiment can realize an appropriate projection position for different combiners 5.

[0050] The reference position in this embodiment is a position that optimizes the projection position of the display light Lt on the combiner 5 with respect to the center position in the eye range ER in the vehicle vertical direction Z. Therefore, the projection position can be adjusted by the motor 8 over a wide range in the vertical direction.

[0051] The vehicle display device 1 of this embodiment has a cover unit U3 that closes the opening of the storage section 6. The cover unit U3 has a lid portion 60 and a transparent cover 62. The lid portion 60 has a through hole 61 and is attached to the storage section 6. The cover 62 is disposed in the through hole 61. The display light Lt reflected by the reflecting member 4 passes through the cover 62 and is projected onto the combiner 5. With this configuration, it is possible to combine an optimal cover 62 with the combiner unit U2. Note that the cover 62 may be common to a plurality of combiner units U2. In this case, the cover 62 and the lid portion 60 may be included in the display device unit U1.

[0052] [Modification of the embodiment] The control unit 9 may adjust the height of the display range 30v depending on the combiner unit U2. For example, the display range 30v may be widened for a combiner unit U2 having a large display height H as shown in Fig. 6. The display range 30v may be narrowed for a combiner unit U2 having a small display height H as shown in Fig. 8.

[0053] When adjusting the projection position of the display light Lt according to the eyepoint EP, the control unit 9 may change both the rotational position of the reflecting member 4 and the display range 30v. For example, when there is an eyepoint EP for which the projection position cannot be optimized by only rotating the reflecting member 4, the display range 30v may be changed.

[0054] The contents disclosed in the above-mentioned embodiments and modifications can be implemented in appropriate combinations. [Explanation of symbols]

[0055] 1 Vehicle display device 3: image display device; 4: reflecting member; 5: combiner; 6: storage section 7: hood section, 8: motor, 9: control section, 10: camera 30: Display surface, 30d: Lower display area, 30u: Upper display area 30v: Display range 60: Lid portion, 61: Through hole, 62: Cover 100: vehicle, 110: windshield, 120: instrument panel EP: Eye point, EPd: Lower end position, EPu: Upper end position H: Display height Lt:Display light Ri: Real image, Vi: Virtual image U1: Display unit, U2: Combiner unit, U3: Cover unit X: Front-rear direction of the vehicle, Z: Up-down direction of the vehicle

Claims

1. a display unit including an image display device; a combiner unit assembled to the display unit; Equipped with The display unit comprises: an image display device having an upper display area and a lower display area for displaying an image, the upper display area being disposed so as to face an eye point of a vehicle; a housing portion that houses the lower display area and is open upward; A reflecting member that is accommodated in the accommodation portion and is rotatable within a predetermined range; A motor that rotates the reflecting member; A control unit that controls the image display device and the motor; having The combiner unit includes: A hood portion that covers the upper display area from the front of the vehicle; A combiner disposed on the eyepoint side with respect to the upper display area; having the combiner has a nominal height; The display height is a height of the combiner in a vehicle vertical direction or a height of the combiner in a vertical direction of an image when viewed from an eye point, The display device unit is configured to be combinable with a plurality of the combiner units having different display heights, The reflective member is disposed on a side of the eye point with respect to the lower display area and the combiner, and reflects the display light of the lower display area toward the combiner, a rotation direction of the reflecting member is a direction in which a projection position of the display light is changed in a vertical direction of the vehicle, The control unit is configured to set a display position of an image in a vertical direction in the lower display area according to the display height of the combiner attached to the display device unit. A display device for a vehicle.

2. The control unit sets a display position of the image in the image vertical direction in the lower display area so that a projection position of the display light with respect to the combiner is a predetermined reference position with the rotational position of the reflection member being set to a neutral position. The display device for a vehicle according to claim 1 .

3. The reference position is a position that optimizes the projection position of the display light with respect to the combiner with respect to the center position in the vertical direction of the vehicle in the eye range. The display device for a vehicle according to claim 2 .

4. A cover unit is provided to close the opening of the storage portion, the cover unit has a through hole and includes a lid portion assembled to the housing portion, and a transparent cover disposed in the through hole; The display light reflected by the reflecting member is transmitted through the cover and projected onto the combiner. The display device for a vehicle according to claim 1 .

Images