Head-up display device

Abstract

To provide a head-up display device which can reduce the sense of discomfort of a display occurring when displaying a selection image as an image.SOLUTION: In a head-up display device which displays as a virtual image V an image on a display surface A set on the front side of a windshield 3, the display surface A is set in such a manner that the display surface A inclines forward with respect to the vertical direction of a vehicle, images displayed on the display surface A include first to third selection images P1 to P3, the selection images P1 to P3 are displayed on a first display area T1 of the display area A closer to a user 4 side and a second display area T2 of the display surface A farther than the first display area T1, and a control unit 21 performs display control of the image so that the third selection image P3 displayed on the second display area T2 moves to the first display area T1 when receiving a selection image movement signal under such a situation that the third selection image P3 displayed on the second display area T2 is selected by the user.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a head-up display device. [Background technology]

[0002] As a conventional head-up display device, Patent Document 1 discloses a device that emits display light representing an image toward a translucent member such as a windshield of a vehicle, and displays the image as a virtual image on a display surface set in front of the translucent member. This display surface can be set to tilt forward with respect to the up-down direction of a viewer (user) viewing the image. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-212338 Summary of the Invention [Problem to be solved by the invention]

[0004] However, for example, in a situation where the image displays the titles of songs that the user can listen to, arranged vertically, with the title of the currently selected song displayed at the top of the image, the display surface on which the image is displayed is tilted forward, which gives the illusion that the image of the selected song title (i.e., the selected image) is recessed, resulting in an unnatural display.

[0005] In order to address the above-mentioned problems, an object of the present invention is to provide a head-up display device that can reduce the sense of incongruity felt when displaying a selected image as an image. [Means for solving the problem]

[0006] The present invention provides a head-up display device that is mounted on a vehicle and projects display light representing an image onto a translucent member, thereby displaying the image as a virtual image on a display surface set in front of the translucent member, the head-up display device comprising: a control unit that controls the display of the image; the display surface is set at a forward tilt with respect to the vertical direction of the vehicle; the image displayed on the display surface is selectable by a viewer viewing the image and includes a plurality of selection images arranged along the display surface; the selection images are displayed at a first location on the display surface that is closer to the viewer and at a second location on the display surface that is farther away than the first location; and when the control unit receives a selection image movement signal for moving the selection image in a situation where the viewer has selected the selection image displayed at the second location, the control unit controls the display of the image to move the selection image displayed at the second location to the first location.

[0007] The present invention also provides a head-up display device that is mounted on a vehicle and projects display light representing an image onto a translucent member to display the image as a virtual image on a display surface set in front of the translucent member, the head-up display device comprising: a control unit that controls the display of the image; the display surface is set at a forward tilt with respect to the vertical direction of the vehicle; the image displayed on the display surface is selectable by a viewer viewing the image and includes a plurality of selection images arranged along the display surface; the selection images are displayed at a first location on the display surface that is closer to the viewer and at a second location on the display surface that is farther away than the first location; and the control unit controls the display of the image so as to move the selection image displayed at the second location to the first location after a predetermined time has elapsed in a situation where the selection image displayed at the second location is selected by the viewer.

[0008] The present invention is also characterized in that, when the control unit receives the selected image movement signal once or multiple times, it controls the display of the image so as to move the selected image that was displayed in the second location to the first location.

[0009] The present invention is also characterized in that the multiple selected images are displayed on either the left or right side of a virtual line that divides the virtual image approximately equally into left and right halves, or on both the left and right sides of the virtual line, and the control unit controls the display of the images so that the multiple selected images are displayed in a manner such that the distance from the virtual line gradually decreases as they move from the first location to the second location.

[0010] The present invention is also characterized in that the control unit controls the display of the images so that the hue or brightness of the multiple selected images gradually decreases or the size of the multiple selected images gradually decreases as the image moves from the first location to the second location. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide a head-up display device that can achieve the intended purpose and reduce the sense of incongruity felt when displaying a selected image as an image. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a block diagram of a vehicle display system according to an embodiment of the present invention; [Figure 2] 3 is an external view of a main part of the interior of the vehicle when the light-transmitting member is viewed from the viewer's side according to the embodiment. FIG. [Figure 3] 2A and 2B are diagrams for explaining a display mode of the head-up display device according to the embodiment. [Figure 4] 10(a) to 10(c) are diagrams showing a state in which a selected image moves from a second location to a first location according to the embodiment. [Figure 5] 10(a) to 10(c) are diagrams showing a state in which a selected image moves from a second location to a first location according to a second modified example of the embodiment. [Figure 6] 10(a) to 10(c) are diagrams showing a state in which a selected image moves from a second location to a first location according to a third modified example of the embodiment. [Figure 7]10(a) to 10(c) are diagrams showing a state in which a selected image moves from a second location to a first location according to a fourth modified example of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0014] As shown in FIG. 1, a vehicular display system K according to this embodiment is mounted on a vehicle 1, and includes a display device 100, a vehicle information processing unit 200, and an operation unit 300.

[0015] As shown in Fig. 1, the display device 100 includes a head-up display device 10 and a control device 20. The display device 100 not only displays information about the vehicle 1 (hereinafter referred to as "vehicle information") but also information other than the vehicle information in an integrated manner. Note that the vehicle information includes not only information about the vehicle 1 itself but also information outside the vehicle 1 related to the operation of the vehicle 1. Note that in the following description, the head-up display device 10 will be referred to as HUD 10.

[0016] As shown in FIG. 3 , the HUD 10 is provided inside the dashboard 2 and projects display light L that represents an image toward the windshield 3, which is a light-transmitting member. The display light L reflected by the windshield 3 travels toward the user 4 (mainly the driver of the vehicle 1). By placing the viewpoint within the eyebox E, the user 4 can visually recognize the image represented by the display light L as a virtual image V in front of the windshield 3. In other words, the HUD 10 displays the virtual image V (image) in front of the windshield 3. This allows the user 4, who is the viewer viewing the virtual image V, to visually recognize the virtual image V superimposed on the scenery.

[0017] As shown in FIG. 3 , the HUD 10 is set in front of the windshield 3 and displays a virtual image V (image) on a display surface A that is set at a forward tilt relative to the vertical direction (the same direction as the vertical direction of the vehicle 1) relative to the user 4. The display surface A corresponds to the LCD display surface of the LCD 11 described below and is the displayable area for the virtual image V. The display surface A has a substantially rectangular shape when viewed from its normal direction. For example, one end of the display surface A that is closest to the vehicle 1 is set at a position approximately 5 m from the vehicle 1, and the other end that is farthest from the vehicle 1 is set at a position approximately 10 m from the vehicle 1. The display surface A and the eye box E are set in advance based on the size of the LCD display surface of the LCD 11, various mirrors provided in the HUD 10, and an optical system formed by the windshield 3.

[0018] 1, the HUD 10 includes an LCD (Liquid Crystal Display) 11, a light source 12 (backlight) that illuminates the LCD 11 from behind, and a reflector (not shown). For example, the LCD 11 is a TFT (Thin Film Transistor) type, and the light source 12 is composed of an LED (Light Emitting Diode).

[0019] Under the control of the control device 20, the HUD 10 generates display light L by displaying an image on the LCD 11 illuminated by the light source 12. The generated display light L is reflected by a reflecting unit and then emitted toward the windshield 3. The reflecting unit is composed of, for example, two mirrors: a folding mirror and a concave mirror. The folding mirror folds the display light L emitted from the LCD 11 and directs it toward the concave mirror. The concave mirror reflects the display light L from the folding mirror toward the windshield 3 while magnifying it. As a result, the virtual image V viewed by the user 4 is an enlarged version of the image displayed on the LCD display surface of the LCD 11. The number of mirrors constituting the reflecting unit can be changed as desired depending on the design.

[0020] In the HUD 10, by tilting the LCD display surface of the LCD 11, the display surface A can be set at an angle as described above. Note that the display device that emits the display light L is not limited to the LCD 11. The display device may also use an OLED (Organic Light Emitting Diodes), a DMD (Digital Micromirror Device), an LCOS (Liquid Crystal On Silicon), or the like. Even in such a case, the display surface A can be set at an angle as described above by tilting the device display surface of the display device (the screen in the case of using a DMD or LCOS). Furthermore, the tilt angle of the device display surface or screen of the display device may be adjustable by an actuator, so that the tilt angle of the display surface A can be adjusted as needed.

[0021] 3, any portion between the display surface A where the virtual image V is formed and the eye box E is defined as the virtual image display unit 10a. This is because the virtual image V is displayed when the user 4 focuses their line of sight on the virtual image display unit 10a. Note that hereinafter, the display of the virtual image V by the HUD 10 may be referred to as "displaying an image (virtual image V) on the virtual image display unit 10a."

[0022] 1, the control device 20 includes a control unit 21, a ROM (Read Only Memory) 22, and a RAM (Random Access Memory) 23. The control device 20 also includes a drive circuit and an input / output circuit for communicating with various systems in the vehicle 1, as components not shown.

[0023] The control unit 21 controls the image display operation of the HUD 10 and includes a CPU (Central Processing Unit) and a GDC (Graphics Display Controller) that executes image processing in cooperation with the CPU. The GDC is composed of, for example, a GPU (Graphics Processing Unit), an FPGA (Field-Programmable Gate Array), an ASIC (Application Specific Integrated Circuit), etc. The configurations of the control device 20 and the control unit 21 are arbitrary as long as they fulfill the functions described below.

[0024] The ROM 22 is configured by, for example, an EEPROM (Electrically Erasable Programmable Read-Only Memory), a flash memory, etc. The ROM 22 stores in advance fixed data such as an operating program for image display control and image part data.

[0025] The RAM 23 is configured by, for example, an SRAM (Static RAM), a DRAM (Dynamic RAM), etc. The ROM 22 and the RAM 23 may be built into the control unit 21.

[0026] The CPU of the control unit 21 cooperates with the GDC to perform display control of the virtual image display unit 10a based on various image data stored in the ROM 22. The GDC determines the control content of the display operation of the virtual image display unit 10a based on a display control command from the CPU. The GDC reads image part data required to configure one screen to be displayed on the virtual image display unit 10a from the ROM 22 and transfers it to the RAM 23. The GDC also uses the RAM 23 to create one screen's worth of picture data based on the image part data and various image data received via communication from outside the display device 100. Then, once the GDC has completed one screen's worth of picture data in the RAM 23, it transfers it to the virtual image display unit 10a in accordance with the image update timing. As a result, the image is displayed on the virtual image display unit 10a.

[0027] Specifically, the image (virtual image V) displayed on the virtual image display unit 10a (display surface A) is configured to include a content image C1, a plurality of selection images C2, and a cursor image C3 (see FIG. 4). A layer is assigned to each image constituting the virtual image V in advance, and the control unit 21 that controls the display of the images can individually control the display of the images arranged on each layer when superimposing and drawing the images. The layer assigned to the content image C1, the selection image C2, or the cursor image C3 can be determined to be higher as long as it does not impede the visibility of the virtual image V.

[0028] The content image C1 is displayed on the left side of a virtual line Z that divides the virtual image V displayed on the display surface A into approximately equal left and right halves in FIG. 4. The content image C1 can be, for example, a measurement value related to the vehicle 1 (vehicle speed, engine RPM, etc.), warning information (low fuel, abnormal engine oil pressure, abnormal tire pressure, etc.), route guidance information, road guidance information (for example, an image imitating a road sign), or an image for notifying a warning object located ahead of the vehicle 1. In this example, it is assumed that route guidance information is applied as the content image C1. Furthermore, the content image C is not limited to one that shows vehicle information, and may be an entertainment image (video) such as a television or movie.

[0029] 4, the plurality of selection images C2 are displayed on the right side of a virtual line Z that divides the virtual image V displayed on the display surface A into approximately equal parts to the left and right. In this case, the plurality of selection images C2 can be selected by a user 4 viewing the image through a predetermined operation, and are arranged along the display surface A that is set at an angle.

[0030] In this example, three selection images C2 are arranged side by side along the diagonally set display surface A, and in the initial display state shown in Fig. 4(a), virtual images are displayed in the order of first selection image P1, second selection image P2, and third selection image P3 as they move away from the user 4. For example, in this case, these selection images P1 to P3 are displayed aligned in the vertical direction in Fig. 4(a), and images related to the titles of music that the user 4 can listen to can be used as an example of the selection images P1 to P3.

[0031] Here, in FIG. 4, symbol T1 denotes a first display area that is closer to the user 4 in the display area of ​​the virtual image V (display surface A) where the selection image C2 is displayed, and in the initial display state, the first selection image P1 described above is displayed in the first display area T1. Also, in FIG. 4, symbol T2 denotes a second display area that is slightly farther away than the first display area T1 in the display area of ​​the virtual image V (display surface A) where the selection image C2 is displayed, and in the initial display state, the second selection image P2 described above is displayed in the second display area T2. Similarly, in FIG. 4, symbol T3 denotes a third display area that is slightly farther away than the second display area T2 in the display area of ​​the virtual image V (display surface A) where the selection image C2 is displayed, and is (furthest) from the user 4, and in the initial display state, the third selection image P3 described above is displayed in the third display area T3 at the top of the virtual image V.

[0032] In other words, the selected image C2 here is displayed in the first display area T1 of the display surface A, which is closer to the user 4, and in the second and third display areas T2 and T3 of the display surface A, which are farther away than the first display area T1. The first display area T1 corresponds to a first location on the display surface A described in the claims below, and the second display area T2 (or the third display area T3) corresponds to a second location on the display surface A described in the claims below.

[0033] The cursor image C3 indicates that one of the target images of the selection image C2 is selected, and is a frame-shaped image that is visually perceived as overlapping the target image. Specifically, in the initial display state, the cursor image C3 is visually perceived as overlapping the third selection image P3 displayed in the third display area T3, as shown in Fig. 4. When an operation is performed from the operation unit 300 (described later), both the third selection image P3 and the cursor image C3 that is overlapping it move, for example, downward in response to the operation.

[0034] That is, at this time, when the control unit 21 receives a selected image movement signal described later for moving the third selected image P3 downward in a situation where the selected image C2 (i.e., the third selected image P3) displayed in the third display area T3 is selected by the user 4 (the initial display state shown in Figure 4(a)), the control unit 21 performs image display control to move the third selected image P3 displayed in the third display area T3 to the second display area T2.

[0035] As a result, as shown in Figure 4(b), the third selection image P3 that was displayed in the third display area T3 moves to the second display area T2 together with the cursor image C3, and accordingly the second selection image P2 that was displayed in the second display area T2 moves to the first display area T1, and the first selection image P1 that was displayed in the first display area T1 moves to the third display area T3.

[0036] Then, when an operation is again performed from this state using the operation unit 300 (described later), both the third selection image P3 and the cursor image C3 overlapping it move further downward in response to the operation. At this time, when the control unit 21 receives a selection image movement signal (described later) for moving the third selection image P3 downward in a situation where the selection image C2 (i.e., the third selection image P3) displayed in the second display area T2 is selected by the user 4 (the state shown in FIG. 4(b)), the control unit 21 performs image display control to move the third selection image P3 displayed in the second display area T2 to the first display area T1.

[0037] 4(c), the third selection image P3 that was displayed in the second display area T2 moves to the first display area T1 together with the cursor image C3, and accordingly the second selection image P2 that was displayed in the first display area T1 moves to the third display area T3, and the first selection image P1 that was displayed in the third display area T3 moves to the second display area T2. In other words, in this case, the third selection image P3 that constitutes part of the selection image C2 is displayed in the second display area T2 or the third display area T3, which is farther from the user 4, before moving to the first display area T1.

[0038] 1, the control unit 21 communicates with other components (such as the vehicle information processing unit 200 and the operation unit 300) within the vehicle 1. For this communication, a communication method such as CAN (Controller Area Network), Ethernet, MOST, or LVDS (Low Voltage Differential Signaling) can be applied.

[0039] The vehicle information processing unit 200 is configured to include an ECU (Electronic Control Unit) that analyzes information about the vehicle 1 itself and controls the operation of each part of the vehicle 1, a surrounding information acquisition unit that acquires information about the surroundings (outside) of the vehicle 1, a forward object detection unit that detects objects in front of the vehicle 1, a car navigation device, etc.

[0040] The surrounding information acquisition unit is composed of various modules that enable communication between the vehicle 1 and a wireless network (V2N: Vehicle To Cellular Network), communication between the vehicle 1 and other vehicles (V2V: Vehicle To Vehicle), communication between the vehicle 1 and pedestrians (V2P: Vehicle To Pedestrian), and communication between the vehicle 1 and roadside infrastructure (V2I: Vehicle To Roadside Infrastructure). In other words, the surrounding information acquisition unit enables communication between the vehicle 1 and the outside of the vehicle 1 by V2X (Vehicle To Everything).

[0041] The forward object detection unit is composed of, for example, a stereo camera that captures the scenery in front of vehicle 1, a ranging sensor consisting of LIDAR (Laser Imaging Detection And Ranging) that measures the distance from vehicle 1 to an object located in front of vehicle 1, a sonar, ultrasonic sensor, millimeter wave radar, etc. that detects an object located in front of vehicle 1.

[0042] The car navigation device has a GPS controller that calculates the position of the vehicle 1 based on GPS (Global Positioning System) signals received from artificial satellites, etc., and a storage unit that stores map data. Based on the position information from the GPS controller, the car navigation device reads map data for the vicinity of the current position from the storage unit and determines a guide route to the destination set by the user 4. The car navigation device outputs information about the current position of the vehicle 1 and the determined guide route to the control unit 21.

[0043] For example, the control unit 21 can display a content image C1 for notifying the aforementioned measurement amount or warning information based on information from the ECU. The control unit 21 can also display a content image C1 for notifying the aforementioned route guidance information or road guidance information based on information from the surrounding information acquisition unit or the car navigation device. The control unit 21 can also display a content image C1 for notifying the aforementioned warning object ahead based on information from the forward object detection unit.

[0044] The operation unit 300 may be, for example, a steering switch provided on a steering wheel, and supplies a signal indicating the operation content to the control unit 21 in response to an operation by the user 4. In particular, in this case, the operation unit 300 is capable of operating to move the selection image C2 (cursor image C3) being displayed. That is, the signal supplied to the control unit 21 here is configured as a selection image movement signal for moving the selection image C2 (cursor image C3), and the operation may be, for example, an operation of moving the tiltable steering switch in the up and down directions.

[0045] As described above, in this embodiment, the image displayed on the display surface A includes first to third selection images P1 to P3 arranged along the display surface A, and these selection images P1 to P3 are displayed in a first display area (first location) T1 of the display surface A that is closer to the user 4, and in a second display area (second location) T2 of the display surface A that is farther away than the first display area T1. When the control unit 21 receives a selection image movement signal for moving the third selection image P3 in a situation where the third selection image P3 displayed in the second display area T2 has been selected by the user 4, the control unit 21 controls the display of images to move the third selection image P3 displayed in the second display area T2 to the first display area T1.

[0046] Therefore, even if the selected third selection image P3 is displayed above the display surface A that is tilted forward of the windshield 3 (i.e., the third display area T3 that is recessed from the user 4 side), the third selection image P3 can be moved below the display surface A (i.e., the first display area T1 that is closer to the user 4 side) by operating the display surface A by the user 4, so there is no risk that the selected third selection image P3 will be perceived as recessed, and the sense of incongruity in the display when the selection image C2 is displayed as a virtual image V (image) can be reduced.

[0047] Furthermore, in this embodiment, when the control unit 21 receives the selected image movement signal once or twice (multiple times), it controls the image display to move the third selected image P3 (selected image C2) that was displayed in the second display area T2 or the third display area T3 to the first display area T1, thereby making it possible to easily move the third selected image P3 to a position closer to the user 4, which has the advantage of improving marketability.

[0048] The present invention is not limited to the above-described embodiments and drawings, and modifications (including the omission of components) can be made as appropriate within the scope of the present invention.

[0049] (First Variant) For example, in the above-described embodiment, the third selection image P3 was moved from the top of the display surface A (a region further back from the user 4) to the bottom of the display surface A (a region closer to the user 4) by an operation by the user 4, as shown in Figures 4(a) to 4(c). However, for example, the display may be configured so that, regardless of an operation by the user 4, the display changes from the state of Figure 4(a) to the state of Figure 4(b) after a certain period of time (predetermined period of time) has elapsed, and further, the display changes from the state of Figure 4(b) to the state of Figure 4(c) after a certain period of time (predetermined period of time) has elapsed from this state.

[0050] In other words, in this case, when the third selection image P3 (selection image C2) displayed in the second location T2 (T3) is selected by the user 4, after a predetermined time has elapsed, the control unit 21 will perform image display control to move the third selection image P3 (selection image C2) displayed in the second location T2 (T3) to the first location, the first display area T1.

[0051] (Second Variant) In the above-described embodiment, multiple selected images C2 were displayed as virtual images aligned vertically to the right of the virtual line Z in Figure 4. However, as a second variant of this embodiment, for example, the display layout may be such that multiple selected images C2 gradually approach the virtual line Z as they move from the first display area T1 to the third display area T3, as shown in Figure 5.

[0052] In other words, in this case, the control unit 21 controls the display of the images so that the multiple selected images C2 are displayed in such a manner that the distance from the virtual line Z gradually decreases as they move from the first display area T1, which is the first location, to the third display area T3, which is the second location.

[0053] Here, when the distance from the first selected image P1 to the virtual line Z is W1, the distance from the second selected image P2 to the virtual line Z is W2, and the distance from the third selected image P3 to the virtual line Z is W3, the magnitude relationship between these distances W1 to W3 is W1>W2>W3. This configuration has the advantage of realizing a virtual image display with a greater sense of depth. Note that Figures 5(a) to 5(c) disclosed as this second modified example are the same as Figures 4(a) to 4(c) disclosed in the above-mentioned embodiment, except for the display position of the selected image C2.

[0054] (Third Variant) In the first variant described above, the content image C1 is displayed on the left side of the virtual line Z, and the selected image C2 is displayed on the right side of the virtual line Z. However, as a third variant of this embodiment, as shown in FIG. 6, the arrangement of the content image C1 and the selected image C2 may be reversed compared to the first variant, with the content image C1 displayed on the right side of the virtual line Z and the selected image C2 displayed on the left side of the virtual line Z.

[0055] Also in the configuration of this second modified example, the magnitude relationship between the distances W1 to W3 is W1>W2>W3. In some cases, the content image C1 in Fig. 5 may not be displayed, and instead, the selection image C2 shown in Fig. 6 may be displayed. In other words, in this case, the selection images C2 are displayed on both the left and right of the virtual line Z. For example, a selection image related to the title of a piece of music may be displayed on the right side of the virtual line Z, and a selection image related to a radio program may be displayed on the left side of the virtual line Z.

[0056] (Fourth Modification) Furthermore, in the above-described embodiment, the shapes (sizes) of the individual selection images C2 are all the same. However, as a fourth modification of this embodiment, for example, as shown in FIG. 7, the shapes (sizes) of the individual selection images C2 may be gradually reduced from the bottom to the top of the display surface A. In this case, the control unit 21 controls the image display so that the sizes of the multiple selection images C2 gradually decrease from the first display area T1 to the third display area T3. This configuration has the advantage of realizing a virtual image display with a greater sense of depth. Note that FIGS. 7(a) to 7(c) disclosed as this third modification are the same as FIGS. 4(a) to 4(c) disclosed in the above-described embodiment, except for the size of the individual selection images C2.

[0057] In this variant example 4, the size of the selected image C2 is changed, but the selected image C2 may also be displayed in a manner that satisfies either that the lower part when viewed by the user 4 is brighter than the upper part, or that the hue is more attention-grabbing.

[0058] When brightness is used, the selection image C2 may be displayed so that its brightness gradually increases from the top to the bottom. As an example, in the display layout shown in Fig. 4(c), the third selection image P3 (background portion of the third selection image P3) may be displayed in dark blue, the first selection image P1 (background portion of the first selection image P1) may be displayed in light blue, and the second selection image P2 (background portion of the second selection image P2) may be displayed in a pale blue.

[0059] On the other hand, when using hue, the selection image C2 may be displayed in a hue that gradually becomes more attention-grabbing from top to bottom. As an example, in the display layout shown in Fig. 4(c), the third selection image P3 (background portion of the third selection image P3) may be displayed in red, the first selection image P1 (background portion of the first selection image P1) may be displayed in orange, and the second selection image P2 (background portion of the second selection image P2) may be displayed in yellow. [Explanation of symbols]

[0060] 1 vehicle 2. Dashboard 3. Windshield (translucent material) 4. User (viewer) 10 Head-up display device 20 Control device 21 Control section 100 display device 200 Vehicle information processing unit 300 Operation section A Display surface C1 Content Image C2 Selected Image C3 cursor image L display light P1 First selected image P2 Second selected image P3 Third selected image T1 First display area (first location) T2 Second display area (second location) T3 Third display area (second location) V Virtual Image Z virtual line

Claims

1. A head-up display device is mounted on a vehicle and projects display light representing an image onto a translucent member to display the image as a virtual image on a display surface set in front of the translucent member, a control unit that controls display of the image, the display surface is set to be inclined forward with respect to the up-down direction of the vehicle, the image displayed on the display surface is selectable by a viewer viewing the image and includes a plurality of selection images arranged along the display surface; the selected image is displayed at a first location on the display surface that is closer to a viewer and at a second location on the display surface that is farther away than the first location, The head-up display device is characterized in that, when the control unit receives a selected image movement signal for moving the selected image displayed in the second location while the selected image is selected by a viewer, the control unit controls the display of the image to move the selected image displayed in the second location to the first location.

2. A head-up display device is mounted on a vehicle and projects display light representing an image onto a translucent member to display the image as a virtual image on a display surface set in front of the translucent member, a control unit that controls display of the image, the display surface is set to be inclined forward with respect to the up-down direction of the vehicle, the image displayed on the display surface is selectable by a viewer viewing the image and includes a plurality of selection images arranged along the display surface; the selected image is displayed at a first location on the display surface that is closer to a viewer and at a second location on the display surface that is farther away than the first location, The control unit controls the display of the image so as to move the selected image displayed in the second location to the first location after a predetermined time has elapsed while the selected image displayed in the second location is selected by a viewer.

3. 2. The head-up display device according to claim 1, wherein the control unit controls the display of the image so as to move the selected image that was displayed in the second location to the first location when the control unit receives the selected image movement signal once or a plurality of times.

4. the plurality of selected images are displayed on either the left or right side of a virtual line that divides the virtual image into approximately equal parts to the left and right, or on both the left and right sides of the virtual line; 4. The head-up display device according to claim 1, wherein the control unit controls the display of the images so that the plurality of selected images are displayed in a manner such that the distance from the virtual line gradually decreases as the image moves from the first location to the second location.

5. 5. The head-up display device according to claim 1, wherein the control unit controls the display of the images so that the hue or brightness of the plurality of selected images gradually decreases or the size of the plurality of selected images gradually decreases from the first location to the second location.

Images