Display device for vehicle

Abstract

The present invention provides a vehicle display device capable of displaying an image having a sense of depth while suppressing a decrease in visibility. A vehicle display device is provided with: a display device that displays an image to a driver of a vehicle; and a control unit that controls the display device, the images displayed by the display device including a first image (G1) that simulates the scenery in front of the vehicle and that represents the depth based on the first vanishing point (Vp1), and a second image (G2) that represents the depth based on the second vanishing point (Vp2). The second image is an image for providing information displayed in the same area as the display area (GR) of the first image, and is an image representing a depth based on a vanishing point (Vp2, Vp3) different from the first vanishing point.

Description

Technical Field

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

[0002] Conventionally, there have been devices that display images such as virtual images. Patent Document 1 discloses a display device for a vehicle, which includes a first display that emits first display light and a second display that emits second display light, and displays a virtual image by projecting the first display light and the second display light onto a windshield.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2023-056063 Summary of the Invention

[0006] Technical Problem to be Solved by the Invention

[0007] In a display device for a vehicle, when displaying an image having a sense of depth, it is preferable to be able to suppress a decrease in the visibility of the image. For example, when the image is displayed on the inner side in the depth direction, the size of the image sometimes becomes smaller and the visibility decreases. For example, when expressing a sense of depth in an image, the interval between multiple contents sometimes decreases and the visibility decreases.

[0008] An object of the present invention is to provide a display device for a vehicle that can suppress a decrease in visibility and display an image having a sense of depth.

[0009] Technical Means for Solving the Problem

[0010] The display device for a vehicle according to the present invention is characterized by including: a display device that displays an image to a driver of the vehicle; and a control unit that controls the display device, wherein the image displayed by the display device includes a first image and a second image, the first image is an image imitating the scenery in front of the vehicle and is an image expressing depth based on a first vanishing point, and the second image is an image for providing information displayed in the same area as the display area of the first image and is an image expressing depth based on a vanishing point different from the first vanishing point.

[0011] Advantageous Effects of the Invention

[0012] The vehicle display device according to the present invention includes: a display device that displays an image to a driver of a vehicle; and a control unit that controls the display device. The image displayed by the display device includes a first image and a second image. The first image is an image imitating the scenery in front of the vehicle and is an image expressing depth based on a first vanishing point. The second image is an image for providing information displayed in the same area as the display area of the first image and is an image expressing depth based on a vanishing point different from the first vanishing point. According to the vehicle display device of the present invention, by shifting the position of the vanishing point, the effect of being able to suppress the reduction in visibility and display an image with a sense of depth can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a view of a vehicle equipped with the vehicle display device of the embodiment.

[0014] Figure 2 It is a structural diagram of the vehicle display device according to the embodiment.

[0015] Figure 3 It is a view showing the first image and the second image according to the embodiment.

[0016] Figure 4 It is a view for explaining the size of the image based on the first vanishing point.

[0017] Figure 5 It is a view showing the scenery in front of the vehicle and a virtual image.

[0018] Figure 6 It is a view showing an example of the first image and the second image.

[0019] Figure 7 It is a view showing an example of the first image and the second image.

[0020] Figure 8 It is a view showing the scenery in front of the vehicle and a virtual image.

[0021] Figure 9 It is a view showing another example of the first image and the second image.

[0022] Figure 10 It is a view showing another example of the first image and the second image.

[0023] Figure 11 It is a view showing another example of the first image and the second image.

[0024] Figure 12 It is a view showing a content image displayed together with a guidance image.

[0025] Figure 13This is a diagram showing an example of the third vanishing point.

[0026] Figure 14 This is a diagram showing a virtual image displayed obliquely.

[0027] Explanation of reference numerals

[0028] 1: Vehicle display device

[0029] 2: Housing, 3: Display device, 4: Image display unit, 5: First mirror, 6: Second mirror

[0030] 10: Control unit

[0031] 20: Vehicle image, 21: Speed image, 22: Set value image

[0032] 30: Line image, 30L: Left line image, 30R: Right line image

[0033] 50: Guidance image

[0034] 60: Graphic image, 70: Object image

[0035] 100: Vehicle, 110: Windshield

[0036] 200: Driver

[0037] 400: Vehicle traveling ahead

[0038] G1: First image, G2: Second image

[0039] Gh: Horizontal direction of image, Gv: Vertical direction of image

[0040] GR: Display area

[0041] Lt: Display light

[0042] Vp1: First vanishing point, Vp2: Second vanishing point, Vp3: Third vanishing point

[0043] X: Vehicle longitudinal direction

[0044] Vi: Virtual image Detailed implementation mode

[0045] Hereinafter, the vehicle display device according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, the present invention is not limited to this embodiment. In addition, the constituent elements in the following embodiments include elements that can be easily conceived by those skilled in the art or substantially identical elements.

[0046] [Embodiment]

[0047] Refer to Figures 1 to 14, an embodiment will be described. This embodiment relates to a vehicle display device. Figure 1 It is a view of a vehicle equipped with the vehicle display device of the embodiment, Figure 2 It is a structural diagram of the vehicle display device according to the embodiment, Figure 3 It is a view showing a first image and a second image according to the embodiment, Figure 4 It is a view for explaining the size of an image based on a first vanishing point, Figure 5 It is a view showing the scenery in front of the vehicle and a virtual image, Figure 6 and Figure 7 It is a view showing an example of a first image and a second image, Figure 8 It is a view showing the scenery in front of the vehicle and a virtual image, Figures 9 to 11 It is a view showing another example of a first image and a second image, Figure 12 It is a view showing a content image displayed together with a guiding image, Figure 13 It is a view showing an example of a third vanishing point, Figure 14 It is a view showing a virtual image displayed obliquely.

[0048] In Figure 1 and Figure 2 An example of the vehicle display device 1 according to this embodiment is shown. The vehicle display device 1 of this embodiment has a display device 3 that displays an image for the driver 200. The display device 3 can be an instrument device, a head-up display device, or other image display devices.

[0049] The exemplary display device 3 displays a virtual image Vi for the driver 200 as described below. As Figure 2 shown, the vehicle display device 1 displays the virtual image Vi for the driver 200 by projecting the display light Lt of the image onto the reflection surface 110a in front of the driver 200 in the vehicle 100. The reflection surface 110a of this embodiment is the inner surface of the windshield 110. A reflective coating may also be formed on the reflection surface 110a.

[0050] As Figure 2 shown, the vehicle display device 1 has a housing 2, a display device 3, and a control unit 10. The housing 2 is disposed below the windshield 110 of the vehicle 100. The housing 2 is accommodated, for example, below the instrument panel 120. The display device 3 and the control unit 10 are accommodated in the housing 2.

[0051] The display device 3 includes an image display unit 4, a first mirror 5, and a second mirror 6. The image display unit 4 has, for example, a liquid crystal display device such as a TFT-LCD (Thin Film Transistor-Liquid Crystal Display). The image display unit 4 has a display surface 4a for displaying an image. Display light Lt of the image is emitted from the display surface 4a. The image display unit 4 has, for example, a backlight unit disposed on the back side with respect to the display surface 4a. In this case, the display light Lt is generated by the light of the backlight unit.

[0052] The first mirror 5 reflects the display light Lt output from the image display unit 4 toward the second mirror 6. The first mirror 5 has a reflecting surface 5r for reflecting light. The shape of the exemplary reflecting surface 5r is a convex aspherical surface. The shape of the reflecting surface 5r is a shape for correcting the distortion of the image generated on the second mirror 6 and the windshield 110.

[0053] The second mirror 6 reflects the display light Lt incident from the first mirror 5 side toward the windshield 110. The housing 2 has a transparent cover 2a. The cover 2a faces the opening of the instrument panel 120. The display light Lt passes through the cover 2a from the second mirror 6 side toward the windshield 110 side. The reflecting surface 110a of the windshield 110 reflects the display light Lt toward the eye point EP of the vehicle 100. The driver 200 visually confirms the virtual image Vi through the display light Lt. The position of the virtual image Vi observed from the driver 200 is in front of the windshield 110 in the vehicle longitudinal direction X.

[0054] The second mirror 6 of the present embodiment has a concave reflecting surface 6r. The shape of the reflecting surface 6r is an aspherical curved shape and is a shape for magnifying the image. The virtual image Vi has an image vertical direction Gv when observed from the driver 200.

[0055] Figure 2 The illustrated control unit 10 controls the display device 3. More specifically, the control unit 10 instructs the image display unit 4 to display an image on the display surface 4a. The control unit 10 may also generate an image to be displayed and output the image to the image display unit 4. The control unit 10 controls the image display unit 4 based on, for example, a program stored in a memory or the like of the display device 3.

[0056] The control unit 10 obtains various information related to the vehicle 100 from a vehicle ECU or the like that controls the vehicle 100. The information obtained by the control unit 10 includes, for example, the traveling speed of the vehicle 100, the gear position of the vehicle 100, information on route guidance of a navigation system, the position information of the vehicle 100, information related to the battery of the vehicle 100, and information related to driving control such as ACC (Adaptive Cruise Control).

[0057] As described below, the image displayed on the display device 3 includes a first image G1 and a second image G2. Figure 3 Examples of the first image G1 and the second image G2 are shown. Both the first image G1 and the second image G2 of the present embodiment are displayed in the same display area GR. The shape of the display area GR is, for example, rectangular.

[0058] The first image G1 is an image imitating the scenery in front of the vehicle 100. The first image G1 is an image expressing the depth based on the first vanishing point Vp1. The exemplary first vanishing point Vp1 is arranged above the display area GR in the image vertical direction Gv. However, the first vanishing point Vp1 may also be set inside the display area GR.

[0059] The first image G1, for example, includes Figure 3 the line image 30 shown. The line image 30 is an image expressing the boundary of the lane on which the vehicle 100 travels. The line image 30 is a linear image extending toward the first vanishing point Vp1.

[0060] The line image 30 has a left line image 30L and a right line image 30R. The left line image 30L is an image expressing the left boundary in the lane on which the vehicle 100 travels. The left line image 30L is displayed on the left side of the image horizontal direction Gh with respect to the vehicle image 20 representing the vehicle 100. The right line image 30R is an image expressing the right boundary in the above-mentioned lane. The right line image 30R is displayed on the right side of the image horizontal direction Gh with respect to the vehicle image 20. The interval between the two line images 30L and 30R becomes narrower as it goes toward the upper side of the image vertical direction Gv.

[0061] The second image G2 is an information-providing image displayed in the same area as the display area GR of the first image G1. The second image G2 is an image expressing the depth based on the second vanishing point Vp2. The second vanishing point Vp2 is a point different from the first vanishing point Vp1. The second image G2, for example, includes an object image 70 which is an image representing a detected object in front.

[0062] The object in front is, for example, a preceding vehicle 400 detected in ACC control. In this case, the position and size of the object image 70 change according to the inter-vehicle distance to the preceding vehicle 400. When the inter-vehicle distance increases, the object image 70 moves inward in the depth direction based on the second vanishing point Vp2 as shown by the arrow AR1. On the contrary, when the inter-vehicle distance decreases, the object image 70 moves forward in the depth direction based on the second vanishing point Vp2 as shown by the arrow AR2.

[0063] The second vanishing point Vp2 is located above the first vanishing point Vp1 in the vertical direction Gv of the image. In the vehicle display device 1 of the present embodiment, the size of the object image 70 varies based on the second vanishing point Vp2. Thus, the object image 70 can be displayed in a moderate size. In Figure 4 the object image 70 generated based on the first vanishing point Vp1 is represented by a dashed line. Figure 4 The object image 70 of Figure 3 is smaller than the object image 70 shown in

[0064] In contrast, the object image 70 generated based on the second vanishing point Vp2 can be displayed in an appropriate size in the display area GR. The position of the second vanishing point Vp2 is set in a manner that can ensure the visibility of the object image 70. In the object image 70 generated based on the second vanishing point Vp2, the change in the size of the object image 70 when moving along the depth direction becomes gentle. Therefore, the vehicle display device 1 of the present embodiment can display information with a sense of depth while ensuring the visibility of the object image 70.

[0065] In addition, the interval from the left line image 30L to the right line image 30R is widened in a manner that makes it difficult for the user to feel a sense of incongruity with the object image 70. As shown in Figure 3 the left line image 30L and the right line image 30R are configured not to cross the trajectory L70 of the object image 70. The trajectory L70 is a straight line in the depth direction based on the second vanishing point Vp2 and is the trajectory of the lower end of the object image 70.

[0066] By making the line image 30 not cross the trajectory L70, it becomes difficult for the user to feel incongruous with the display size of the object image 70. Therefore, the vehicle display device 1 of the present embodiment can coexist two images G1 and G2 with different vanishing points in the same display area GR and exhibit a natural sense of depth.

[0067] In Figure 5 and Figure 6 a virtual image Vi when the vehicle 100 catches up with the vehicle 400 traveling ahead is shown. As shown in Figure 5 the virtual image Vi is displayed overlapping the scenery Sc in front of the vehicle 100. As shown in Figure 6 the first image G1 of the virtual image Vi includes the left line image 30L and the right line image 30R. The second image G2 of the virtual image Vi includes the vehicle image 20 and the object image 70. The virtual image Vi also includes a speed image 21, a set value image 22, and a plurality of graphic images 60.

[0068] The speed image 21 is an image representing the traveling speed of the vehicle 100, for example, an image of characters representing speed. The speed image 21 is always displayed, for example, when the vehicle 100 is in the driving mode. The object image 70 is an image representing the vehicle 400 traveling ahead, and is an image imitating the shape of the vehicle. The object image 70 representing the vehicle 400 traveling ahead is displayed, for example, during the execution of ACC control. The object image 70 is, for example, an image of the vehicle viewed from above the rear of the vehicle.

[0069] As Figure 6 shown, the vehicle image 20 and the object image 70 are depicted by perspective based on the second vanishing point Vp2. During the execution of ACC control, the set value image 22 and the graphic image 60 are also displayed. The set value image 22 is the set value of the traveling speed in ACC control. In the following description, the set value of the traveling speed in ACC control is simply referred to as the set speed. The set value image 22 is arranged above the speed image 21 in the image vertical direction Gv. The set value image 22 is displayed in smaller characters than the speed image 21. The speed image 21 and the set value image 22 can be arranged side by side in the depth direction based on the first vanishing point Vp1, or can be arranged side by side in the depth direction based on the second vanishing point Vp2.

[0070] The graphic image 60 is an image that three-dimensionally represents changes in the inter-vehicle distance during ACC control, etc. The shape of the graphic image 60 in the present embodiment is a rectangle. Figure 6 The graphic image 60 has an image 61, an image 62, and an image 63. The three graphic images 60 are displayed partially overlapping. The relative positions of the three graphic images 60 change according to the target value of the inter-vehicle distance, etc.

[0071] The three graphic images 60 are arranged, for example, along a line toward the first vanishing point Vp1. The graphic image 60 can also be arranged along a line toward the second vanishing point Vp2. The graphic image 60 is displayed between the vehicle image 20 and the object image 70. The image 61 is arranged at the position closest to the front among the three graphic images 60. The image 63 is arranged at the innermost position among the three graphic images 60. The three graphic images 60 are arranged, for example, at equal intervals in the depth direction based on the vanishing points Vp1, Vp2.

[0072] The graphic image 60 displayed closest to the front among the multiple graphic images 60 is larger than the other graphic images 60. The graphic image 60 displayed at the innermost position among the multiple graphic images 60 is smaller than the other graphic images 60. In addition, when three or more graphic images 60 are displayed, the graphic images 60 become smaller as they go from the front side toward the inside toward the vanishing points Vp1, Vp2.

[0073] The image 61 of the present embodiment is displayed in such a manner that a part of the vehicle image 20 overlaps with the image 61. That is, a part of the image 61 is blocked by the vehicle image 20. With such a display, it is easy for the driver 200 to understand that the plurality of graphic images 60 are images representing virtual objects and segments in front of the vehicle 100.

[0074] In the ACC control, when no preceding vehicle 400 is detected and the inter-vehicle distance from the preceding vehicle 400 to the vehicle 100 is sufficient, a control is executed to make the vehicle 100 travel at a set speed. The target speed in this case is equal to the set speed. The vehicle ECU mounted on the vehicle 100 executes a travel control to make the vehicle 100 travel at the target speed.

[0075] The vehicle ECU performs a deceleration control when the inter-vehicle distance between the vehicle 100 and the preceding vehicle 400 decreases. The vehicle ECU decelerates the vehicle 100 in such a manner that a necessary inter-vehicle distance is ensured between the vehicle 100 and the preceding vehicle 400, and makes the vehicle 100 follow the preceding vehicle 400.

[0076] In Figure 7 is shown the virtual image Vi when the inter-vehicle distance to the preceding vehicle 400 decreases with respect to Figure 6 The object image 70 is closer to the vehicle image 20 along the depth direction based on the second vanishing point Vp2 than the position of Figure 6 . In addition, the plurality of graphic images 60 are closer to each other along the depth direction compared to the state of Figure 6 . By changing the position and size of the object image 70 based on the second vanishing point Vp2, the object image 70 can be displayed in an appropriate size, and information about the change in the inter-vehicle distance can be provided to the driver 200.

[0077] Next, with reference to Figures 8 to 12 , other examples of the second image G2 will be described. In Figure 8 is shown the virtual image Vi when path guidance for the driver 200 is performed. As Figure 8 shows, the virtual image Vi is displayed overlapping the scenery Sc in front of the vehicle 100. The exemplary virtual image Vi is displayed so as to overlap the road surface in front of the vehicle 100. In this case, the display device 3 projects an image onto the lower part of the windshield 110.

[0078] As Figure 9 shows, the virtual image Vi includes the first image G1 and the second image G2. The second image G2 has at least one guidance image 50. The guidance image 50 is an image representing the depth based on a third vanishing point Vp3 different from the first vanishing point Vp1. The third vanishing point Vp3 is offset in the image lateral direction Gh with respect to the first vanishing point Vp1.

[0079] Figure 9 The guiding image 50 is displayed along the left-line image 30L. When the guiding image 50 is displayed along the left-line image 30L, the third vanishing point Vp3 is located on the left side of the image lateral Gh with respect to the first vanishing point Vp1. Thus, as described below, the visibility of the guiding image 50 is improved.

[0080] When the virtual image Vi includes a plurality of guiding images 50, the plurality of guiding images 50 are displayed partially overlapping. Figure 9 The virtual image Vi includes the image 51, the image 52, and the image 53 as the guiding image 50. The three images 51, 52, and 53 are arranged in the depth direction based on the third vanishing point Vp3 and are displayed partially overlapping. An exemplary guiding image 50 is an image that guides the traveling direction of an intersection ahead. Figure 9 The guiding image 50 is an image that guides the driver 200 to turn left at the third intersection from the current position.

[0081] The image 51 is arranged at the position closest to the front along the left-line image 30L among the three guiding images 50. The image 53 is arranged at the innermost position along the left-line image 30L among the three guiding images 50. The three guiding images 50 are arranged at equal intervals along, for example, the left-line image 30L.

[0082] The three images 51, 52, and 53 respectively have lower left corners 51c, 52c, and 53c. The corner 52c of the image 52 and the corner 53c of the image 53 are arranged along the imaginary line L1. The imaginary line L1 is a line segment connecting the corner 51c of the image 51 and the third vanishing point Vp3. The imaginary line L1 connecting the three corners 51c, 52c, and 53c extends in a direction intersecting the left-line image 30L. The guiding image 50 of the present embodiment is displayed in such a way that it is difficult for the user to recognize the arrangement direction of the corners 51c, 52c, and 53c.

[0083] As Figure 10 shown, the image 51 is arranged with the lower left corner 51c along the right edge 30a of the left-line image 30L. The image 51 overlaps the image 52 in such a way as to block the lower left corner 52c of the image 52. The image 51 overlaps the corner 52c and the left-line image 30L near the corner 52c, making it difficult to recognize the positional relationship between the corner 52c and the left-line image 30L. As Figure 11 shown, the position of the corner 52c of the image 52 is offset to the left with respect to the right edge 30a of the left-line image 30L. However, since the corner 52c is blocked by the image 51, this offset is not obvious and is not easily recognized by the user.

[0084] Similarly, the image 52 overlaps the image 53 in a manner that obscures the lower left corner 53c of the image 53. The image 52 overlaps the corner 53c and the left line image 30L near the corner 53c, making it difficult to recognize the positional relationship between the corner 53c and the left line image 30L. As Figure 11 shown, the position of the corner 53c of the image 53 is shifted to the left with respect to the left line image 30L. However, since the corner 53c is obscured by the image 52, this shift is not obvious and is not easily recognizable by the user. According to the guiding image 50 of the present embodiment, the left line image 30L is covered by the three images 51, 52, and 53, and the user is not likely to notice the existence of the third vanishing point Vp3.

[0085] By generating the guiding image 50 based on the third vanishing point Vp3, the visibility of the guiding image 50 is improved. For example, in the case of generating the guiding image 50 based on the first vanishing point Vp1, the images 52 and 53 are close to the center of the image horizontal Gh, narrowing the space in the central part. In contrast, by arranging the guiding image 50 based on the third vanishing point Vp3, the space in the central part can be effectively utilized.

[0086] For example, as Figure 12 shown, in addition to the guiding image 50, other content images 80 may also be displayed. The content image 80 is an image for providing information. The content image 80 may be an image for path guidance, an object image 70, an image for alerting or warning, or other images. The content image 80 is arranged, for example, in the central part of the image horizontal Gh. By arranging the guiding image 50 based on the third vanishing point Vp3, an appropriate gap is formed between the guiding image 50 and the content image 80. Thereby, the visibility of the guiding image 50 and the content image 80 is improved respectively.

[0087] In addition, the third vanishing point Vp3 may be shifted not only in the image horizontal Gh with respect to the first vanishing point Vp1 but also upward in the image vertical Gv direction. In Figure 13 is shown a third vanishing point Vp3 that is located on the left side of the image horizontal Gh with respect to the first vanishing point Vp1 and is located above the first vanishing point Vp1 in the image vertical Gv direction. In this case, the display size of the guiding image 50 displayed on the inner side in the depth direction can be increased.

[0088] As described above, the vehicle display device 1 of the present embodiment includes a display device 3 and a control unit 10 that controls the display device 3. The display device 3 displays an image for the driver 200 of the vehicle 100. The image displayed on the display device 3 includes a first image G1 and a second image G2. The first image G1 is an image imitating the scenery in front of the vehicle 100 and is an image showing depth based on the first vanishing point Vp1. The second image G2 is an information-providing image displayed in the same area as the display area GR of the first image G1. The second image G2 is an image showing depth based on vanishing points Vp2 and Vp3 different from the first vanishing point Vp1.

[0089] According to the vehicle display device 1 of the present embodiment, the second image G2 shows depth based on vanishing points Vp2 and Vp3 different from the first vanishing point Vp1. By shifting the vanishing points Vp2 and Vp3 of the second image G2 relative to the first vanishing point Vp1, the visibility of the image can be improved.

[0090] The second image G2 includes, for example, an object image 70 representing an object detected in front of the vehicle 100, i.e., a front object. The object image 70 is an image showing depth based on the second vanishing point Vp2. The second vanishing point Vp2 is located above the first vanishing point Vp1 in the image vertical direction Gv. In this case, it is possible to prevent the display size of the second image G2 from becoming too small.

[0091] The first image G1 includes, for example, a line image 30 representing the boundary of the lane on which the vehicle 100 travels. The second image G2 may include a guiding image 50 displayed along the line image 30. The guiding image 50 is an image showing depth based on a third vanishing point Vp3 different from the first vanishing point Vp1. The third vanishing point Vp3 is shifted relative to the first vanishing point Vp1 in the image horizontal direction Gh. Thereby, an appropriate interval can be set between the displayed multiple images.

[0092] The line image 30 may have a left line image 30L and a right line image 30R. The left line image 30L is a line image 30 representing the left boundary of the lane. The right line image 30R is a line image 30 representing the right boundary of the lane. When the guiding image 50 is displayed along the left line image 30L, the third vanishing point Vp3 is located on the left side of the first vanishing point Vp1 in the image horizontal direction Gh. When the guiding image 50 is displayed along the right line image 30R, the third vanishing point Vp3 is located on the right side of the first vanishing point Vp1 in the image horizontal direction Gh. By such display, it is possible to prevent the guiding image 50 from being too close to the center of the image.

[0093] [Modification Example of the Embodiment]

[0094] In addition, the vehicle display device 1 may also be configured to display the virtual image Vi obliquely. For example, as Figure 14 shown, the vehicle display device 1 may also be configured to display an oblique virtual image Vi. Figure 14 In the virtual image Vi of, the upper part Vu in the vertical direction Gv of the image is imaged at a position farther from the driver 200 than the lower part Vd. Such an oblique virtual image Vi can be realized by the optical system of the display device 3. The oblique virtual image Vi can be realized by tilting the display surface 4a of the image display unit 4, or can also be realized by other means.

[0095] The content displayed by the guidance image 50 is not limited to the arrow for path guidance. The guidance image 50 may also include text information. The shape of the object image 70 is not limited to imitating the shape of the vehicle. For example, it may be a cube. The display position of the virtual image Vi is not limited to the position exemplified in the embodiment. For example, the virtual image Vi may also be displayed overlapping an object of attention in front of the vehicle 100. The object of attention may be, for example, another vehicle such as the vehicle 400 traveling ahead, a pedestrian, or other object. The reflecting surface that reflects the display light Lt toward the driver 200 is not limited to the surface of the windshield 110. The reflecting surface may be, for example, the reflecting surface of a combiner, or the surface of other reflecting components.

[0096] The first image G1 is not limited to the line image 30. The image imitating the scenery in front of the vehicle 100 may be a building such as a building, or an image imitating a structure such as a guardrail or a road shoulder, or other images.

[0097] The guidance image 50 may also be displayed along the right line image 30R. When the guidance image 50 is displayed along the right line image 30R, the third vanishing point Vp3 is arranged on the right side in the horizontal direction Gh of the image with respect to the first vanishing point Vp1.

[0098] The display device 3 may be a device that displays the real image of the first image G1 and the real image of the second image G2 to the driver. In this case, the display device 3 may also be, for example, an instrument device. The display device 3 that displays the real image is arranged in front of the driver 200 in such a way that the display surface 4a can be visually confirmed by the driver.

[0099] The content disclosed in the above embodiments and variations can be appropriately combined and implemented.

Claims

1. A vehicle display device, characterized in that: have: a display device that displays the image to a driver of the vehicle; and a control unit for controlling the display device, The image displayed by the display device includes a first image and a second image. The first image is an image imitating a scene in front of the vehicle and is an image expressing a depth based on a first vanishing point. The second image is an image for providing information that is displayed in the same area as the display area of ​​the first image and is an image that expresses depth based on a vanishing point different from the first vanishing point.

2. The vehicle display device according to claim 1, characterized in that: The second image includes an image representing an object detected in front of the vehicle, namely, a front object. The image representing the front object is an image showing the depth based on the second vanishing point, The second vanishing point is located above the first vanishing point in a vertical direction of the image.

3. The vehicle display device according to claim 1, characterized in that: The first image includes a line image that represents a boundary of a lane in which the vehicle is traveling. the second image includes a guide image displayed along the line image, The guide image is an image expressing a depth based on a third vanishing point different from the first vanishing point. The third vanishing point is offset in the transverse direction of the image relative to the first vanishing point.

4. The vehicle display device according to claim 3, characterized in that: The line image includes a left line image representing a left boundary of the lane and a right line image representing a right boundary of the lane. When the guide image is displayed along the left line image, the third vanishing point is located on the left side of the image in the horizontal direction relative to the first vanishing point. The third vanishing point when the guide image is displayed along the right line image is located on the right side of the first vanishing point in the horizontal direction of the image.

Images