Aerial display device

Abstract

To provide an aerial display device which makes it easier for a driver to focus on an appearance position of an aerial image by illuminating a site corresponding to an aerial image plane where the aerial image is displayed.SOLUTION: An aerial display device is provided, comprising an HUD device 10 configured to display aerial images RI, VI on aerial image planes RIA, VIA at positions away from an instrument panel 30 located inside a vehicle cabin, a projector 20 for illuminating predetermined sites on the instrument panel 30 or the like corresponding at least to the aerial image planes RIA, VIA, and a control unit 100 for controlling the HUD device 10 and the projector 20 in an interlinking manner.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an aerial display device that displays a desired image to a viewer. [Background technology]

[0002] A conventional display device is known, for example from Patent Document 1. In this display device, a guide member is located on the upper surface of a case on which a display screen is provided, and a spatial image plane is formed that is located above the apex of the guide member as seen by a viewer.

[0003] Also, for example, a display device described in Patent Document 2 is known. In this display device, a dihedral corner reflector array consisting of a large number of dihedral corner reflectors each having two mutually orthogonal mirror surfaces is provided on the top surface of the dashboard as a real mirror image forming optical system, and an aerial image of an object to be observed placed inside the dashboard is projected. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6930244 [Patent Document 2] JP 2010-190960 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when an aerial image such as those shown in Patent Documents 1 and 2 is displayed, there is a problem that it is difficult for a viewer to focus on the aerial image. In particular, there is a problem that it is extremely difficult to focus the viewpoint from a distant viewpoint, such as while driving, on an aerial image displayed nearby, such as above the dashboard.

[0006] In the display device described in Patent Document 1, a spatial image plane is formed above the apex of the guide member on the top surface of the case, so that by focusing on the guide member once, it is easy to also align the viewpoint with the spatial image located above that apex; however, there is a problem in that when the spatial image is not being displayed, the guide member remains as visual noise.

[0007] Furthermore, when it is desired to display the aerial image at a position other than above the apex of the guide member, there is the problem that it is difficult to adjust the viewpoint to the aerial image, as described above.

[0008] Therefore, the present invention has been made in consideration of the above-mentioned problems, and aims to provide an aerial display device that makes it easier for occupants to focus on the position where an aerial image appears by illuminating the area corresponding to the aerial image plane on which the aerial image is displayed. [Means for solving the problem]

[0009] The present invention is characterized by having a display unit 12, 40 that displays spatial images RI, VI on a spatial image plane RIA, VIA located away from a fixed facility 30 or an object 31 or a body 32 of a person DR located inside a vehicle C, an illumination unit 20 that illuminates at least a predetermined portion of the fixed facility 30, the object 31 or the body 32 that corresponds to the spatial image plane RIA, VIA, and a control unit that controls the display unit 12, 40 and the illumination unit 20 in cooperation with each other. Effect of the Invention

[0010] According to the present invention, the position where the aerial image appears is illuminated, making it easier for the occupant to identify the position where the aerial image appears and enabling the occupant to smoothly focus on the aerial image. [Brief description of the drawings]

[0011] [Figure 1] 1 is a schematic diagram showing a configuration for displaying a real spatial image in an aerial display device according to a first embodiment of the present invention. [Diagram 2]1 is a schematic diagram showing a configuration for displaying a virtual spatial image in an aerial display device according to a first embodiment of the present invention. [Diagram 3] 1 is a functional block diagram showing the configuration of an aerial display device according to a first embodiment of the present invention. [Figure 4] 1 is a schematic diagram showing a display process when a HUD device and a projector are controlled in cooperation with each other in an aerial display device according to a first embodiment of the present invention. [Diagram 5] FIG. 1 shows examples of patterns when (A) a rectangular, monochrome pattern is displayed on the instrument panel surface of the aerial display device of the first embodiment of the present invention, (B) a circular (elliptical) monochrome pattern is displayed, (C) a pattern with a pattern is displayed, and (D) a pattern with a blurring effect is displayed. [Figure 6] FIG. 1 shows examples of display in an aerial display device according to a first embodiment of the present invention, where (A) a spatial image and pattern are displayed to the front right from the center position of the instrumental panel surface, (B) a spatial image and pattern are displayed to the front left, and (C) a spatial image and pattern are displayed to the rear left. [Figure 7] FIG. 11 is a schematic diagram showing a configuration for displaying a spatial image in an aerial display device according to a second embodiment of the present invention. [Figure 8] A figure showing an example of a variation in the display of a spatial image appearing on an aerial display device according to another embodiment of the present invention. [Figure 9] 9A to 9C are diagrams showing examples of variations in the display mode of the patterns in the display mode of FIG. 8. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] (First embodiment of the present invention) A first embodiment of the present invention will be described below with reference to the drawings. In the aerial display device 1 according to this embodiment, a head-up display device (hereinafter referred to as HUD device) 10 is used as a device for displaying a spatial image RI on a spatial image surface RIA. This HUD device 10 displays a virtual spatial image VI on the outside of the windshield WS as seen by the occupant DR, and displays a real spatial image RI on the inside of the windshield WS.

[0013] Fig. 1 is a schematic diagram showing a configuration when a real spatial image RI is displayed on the aerial display device 1 according to the present embodiment, Fig. 2 is a schematic diagram showing a configuration when a virtual spatial image VI is displayed on the aerial display device 1 according to the present embodiment, and Fig. 3 is a functional block diagram showing a configuration of the aerial display device 1 according to the present embodiment. In Figs. 1 and 2, the aerial display device 1 includes a HUD device 10 that displays a real spatial image RI in an upper space located away from an instrumental panel (hereinafter referred to as an instrument panel) 30 (fixed equipment) located in the interior of a vehicle C, and a projector 20 (illumination unit, projection unit) that is on the surface of the instrument panel 30 and illuminates a portion corresponding to the spatial image RI. The instrument panel 30 is an example of a fixed equipment, and the projector 20 is an example of an illumination unit and a projection unit.

[0014] The HUD device 10 is disposed inside the instrument panel 30, and includes a light source 11 that emits light to be a display image, a display element 12 (display unit) that displays the display image based on the light emitted by the light source 11, and a reflector 13 that reflects the display light L emitted from the display element 12 toward a windshield WS that is a light-transmitting member. The position of the optical focus of the optical system consisting of the light source 11, the display element 12, the reflector 13, and the windshield WS can be changed by adjusting the position of the display element 12 on the optical path of the display light L, and depending on the position of the optical focus, a virtual spatial image VI (FIG. 2) is displayed on a virtual spatial image plane VIA outside the windshield WS as seen by the occupant DR, or a real spatial image RI (FIG. 1) is displayed on a spatial image plane RIA inside the windshield WS. The display element 12 is an example of a display unit.

[0015] The projector 20 is installed, for example, on the ceiling of the vehicle C, and is capable of projecting and displaying various patterns P by projection mapping at various locations inside the vehicle C. For example, any pattern P can be displayed at any timing on fixed equipment such as the instrument panel 30 surface or floor, objects such as a steering wheel 31 or a shift lever for changing gears in the transmission, or the body of a person such as the hands 32 of the occupant DR.

[0016] In addition, as shown in Figure 3, the aerial display device 1 has a control unit 100 (not shown in Figures 1 and 2) that controls the HUD device 10 and the projector 20 in coordination with each other, and the display positions and display modes of the HUD device 10 and the projector 20 are controlled based on the control of the control unit 100.

[0017] 3, the control unit 100 includes a display position determination unit 110 that determines the display position of the aerial image RI displayed by the HUD device 10 and determines the display position of the pattern P displayed by the projector 20 in accordance with the display position of the aerial image RI, and a display processing unit 120 that determines and displays the display mode of the aerial image RI (e.g., display content, brightness, display size, display timing, etc.), and determines and displays the display mode of the pattern P corresponding to the display mode of the aerial image RI. That is, the control unit 100 is configured to control the HUD device 10 and the projector 20 in cooperation with each other. Specific display processing by the control unit 100 will be described later.

[0018] As described above, the display position determination unit 110 may determine the display position of the pattern P in accordance with the display position of the aerial image RI, or may determine the display position of the aerial image RI in accordance with the display position of the pattern P. The display processing unit 120 may specify the display mode of the pattern P in accordance with the display mode of the aerial image RI, or may specify the display mode of the aerial image RI in accordance with the display mode of the pattern P. The display position and display mode of the pattern P corresponding to the display position and display mode of the aerial image RI may be associated based on a combination registered in advance for each scene in which the aerial image RI is displayed, for example.

[0019] The display by the projector 20 can be used as interior lighting for decorating the inside of the vehicle C, and is also used as a marker for the aerial image RI as described below. As shown in Fig. 1, a pattern P serving as a marker is displayed by projection mapping in a predetermined area on the surface of the instrument panel 30 that corresponds to the position where the aerial image RI will appear. By displaying the pattern P, the occupant DR can easily see the position where the aerial image RI will appear, and can also easily see the aerial image RI. That is, when the viewpoint is far away, such as when driving, and the viewpoint is focused on the scenery ahead or a virtual aerial image VI as shown in Fig. 2, and then the viewpoint is focused on a real aerial image RI in the vicinity as shown in Fig. 1, the projector 20 displays the pattern P at the position where the aerial image RI appears on the instrument panel 30 surface, thereby guiding the viewpoint of the occupant DR to the pattern P, and the occupant DR is once focused on the actual object, the instrument panel 30, and the aerial image RI appears at the position of the pattern P, thereby enabling the occupant DR to smoothly focus on the aerial image RI.

[0020] As shown in FIG. 2, for example, when the occupant DR is driving and the HUD device 10 is displaying a virtual spatial image VI in the distance outside the windshield WS, i.e., when a real spatial image RI is not displayed inside the vehicle C, the control unit 100 may control the projector 20 as interior lighting that illuminates any pattern P at any location inside the vehicle C at any timing.

[0021] In addition to use as interior lighting, the control unit 100 may control the projector 20 to display a pattern P for calling attention to steering operation at a predetermined position on the steering wheel 31 or at the hand 32 of the occupant DR, for example, at the timing when switching from automatic driving to manual driving. At this time, a spatial image RI indicating information that the driving mode has been switched may be displayed at a position corresponding to the pattern P displayed at the predetermined position on the steering wheel 31 or at the hand 32 of the occupant DR.

[0022] Furthermore, the control unit 100 may change the display position and display mode of the projector 20 in accordance with the timing at which the HUD device 10 switches between the virtual aerial image VI and the real aerial image RI.

[0023] Next, a description will be given of the control of the display modes of the HUD device 10 and the projector 20 by the control unit 100. Fig. 4 is a schematic diagram showing a display process in the case where the HUD device 10 and the projector 20 are controlled in cooperation with each other in the aerial display device 1 according to this embodiment.

[0024] 4 is an initial state process, and shows the instrument panel 30 in front of the occupant DR in a state where the aerial image RI and the pattern P are not displayed. That is, the control unit 100 controls neither the HUD device 10 nor the projector 20 to perform display processing, and this is the state of the instrument panel 30 when, for example, the occupant DR is driving and focuses his / her gaze on the scenery ahead or a virtual aerial image VI displayed on the outside of the windshield WS. At this time, there is no real object on the instrument panel 30 that would cause visual noise, making the visibility of the occupant DR comfortable.

[0025] The second step S2 is a step in which the projector 20 displays the pattern P, and shows a state in which the pattern P is displayed on the surface of the instrument panel 30 by the projector 20. That is, the control unit 100 controls the projector 20 to display the pattern P in a predetermined display mode at the display position of the determined aerial image RI, and when the occupant DR shifts his / her viewpoint from a distant viewpoint to a close aerial image RI at the timing when the vehicle C shifts from a traveling state to a stopped state or at the timing when the vehicle C switches from manual driving to automatic driving, for example, the predetermined pattern P is displayed on the surface of the instrument panel 30 just before the aerial image RI is displayed. The occupant DR's viewpoint is guided to the pattern P by the display of the pattern P, and the focus is adjusted to the surface of the instrument panel 30 at the location where the pattern P is displayed.

[0026] The third step S3 is a step in which the HUD device 10 displays the aerial image RI, and shows a state in which the aerial image RI is displayed on a virtual aerial image surface RIA in the space above the pattern P. That is, the control unit 100 controls the HUD device 10 to display the aerial image RI in a predetermined display mode at the determined display position, and displays the predetermined aerial image RI in the space above the location where the pattern P is displayed, a predetermined time (e.g., several milliseconds to several seconds) after the pattern P is displayed. Since the occupant DR is in a state in which the focus is on the position of the pattern P on the surface of the instrument panel 30 in the second step S2, it becomes possible for the occupant DR to smoothly focus on the aerial image RI displayed in the space above the location.

[0027] The fourth step S4 is a step in which the HUD device 10 makes the aerial image RI invisible, and shows a state in which the aerial image RI disappears and only the pattern P is displayed on the surface of the instrument panel 30. That is, the control unit 100 controls the HUD device 10 to end the display of the aerial image RI, and the displayed aerial image RI disappears and becomes invisible, for example, at the timing when a predetermined display time of the aerial image RI has ended, when the display content of the aerial image RI has ended, when the vehicle C moves from a stopped state to a moving state, when automatic driving is switched to manual driving, etc.

[0028] The fifth step S5 is a step in which the projector 20 makes the pattern P invisible, and shows the surface of the instrument panel 30 from which both the aerial image RI and the pattern P have disappeared, i.e., the same state as the initial state. At this time, the control unit 100 controls the projector 20 to end the display of the pattern P, and for example, the pattern P disappears and becomes invisible after a predetermined time (for example, several milliseconds to several seconds) has elapsed since the aerial image RI disappeared in the fourth step S4. This causes the viewpoint of the occupant DR to be removed from the aerial image RI and the pattern P.

[0029] After the aerial image RI is displayed in the third step S3, the pattern P may be displayed or may be hidden. In other words, the pattern P may be made to disappear in the fifth step S5 and then the aerial image RI in the fourth step S4 may be made to disappear, or these may be performed simultaneously.

[0030] Fig. 5 is a diagram showing an example of a pattern P displayed on the instrument panel 30 surface in the aerial display device 1 according to this embodiment. Fig. 5(A) shows a rectangular solid monochrome pattern P, Fig. 5(B) shows a circular (elliptical) monochrome pattern P, Fig. 5(C) shows a pattern P with a pattern, and Fig. 5(D) shows a pattern P with a blurring effect.

[0031] The display processing unit 120 of the control unit 100 appropriately specifies and displays these patterns P based on the pattern, material, texture, etc. of the surface of the instrument panel 30, but the occupant DR may be allowed to change them as desired. The pattern P shown in FIG. 5 is merely an example, and it is possible to display patterns P of various shapes (e.g., polygons, stars, hearts, etc.), colors (e.g., 256 colors and combinations thereof), and patterns (e.g., tile patterns, checkered patterns, etc.). Furthermore, the occupant DR may be allowed to create or register the pattern P. That is, the occupant DR may be allowed to display such a pattern P on the projector 20 by storing data of a pattern P that the occupant DR has created or obtained in a state that the projector 20 can import.

[0032] 6 is a diagram showing an example of a case where the pattern P is displayed in accordance with the display position and display mode of the spatial image RI in the aerial display device 1 according to this embodiment. Since the pattern P is displayed by the projector 20 installed on the ceiling of the vehicle C as described above, the display position and display mode can be arbitrarily changed by the control unit 100. The control unit 100 controls the HUD device 10 and the projector 20 in cooperation with each other so that the display position or display mode of the pattern P follows the display position or display mode of the spatial image RI.

[0033] In the example shown in FIG. 6, FIG. 6(A) shows a case where the spatial image RI is displayed on the right front side from the center position O of the instrument panel 30 surface in front of the occupant DR, FIG. 6(B) shows a case where the spatial image RI is displayed on the left front side from the center position O, and FIG. 6(C) shows a case where the spatial image RI is displayed on the left rear side from the center position O. In each case, the control unit 100 determines the display position or display mode of the spatial image RI displayed by the HUD device 10, and determines the display position or display mode of the pattern P displayed by the projector 20 according to the determined display position or display mode of the spatial image RI. The display position or display mode of the spatial image RI may be determined based on, for example, operation information input from the occupant DR, or may be determined based on registration information that is set in advance according to the scene (for example, during a temporary stop with the brakes applied or during parking with the transmission in park). When the display positions or display modes of the spatial image RI and the pattern P are determined, the display of the spatial image RI and the pattern P is controlled by each process shown in FIG. 4.

[0034] In this embodiment, the projector 20 is configured to be disposed on the ceiling of the vehicle C, but the location of the projector 20 is not limited to the ceiling as long as it is inside the vehicle C.

[0035] In addition, in this embodiment, the projector 20 is configured to display the pattern P, but simple lighting (e.g., LED lighting, etc.) (illumination unit) whose display content cannot be changed may be used. In this case, it may be possible to freely illuminate any display position from inside the vehicle C like the projector 20, or it may be fixedly embedded in one or more preset positions on the instrument panel 30 surface. When multiple simple lights are fixedly embedded, it may be possible to arbitrarily change the display position of the spatial image RI in accordance with the embedded positions. When simple lighting is used instead of the projector 20, the control unit 100 controls the simple lighting and the HUD device 10 in cooperation with each other. Note that simple lighting such as LED lighting is an example of an illumination unit.

[0036] Furthermore, instead of the projector 20, a liquid crystal panel or liquid crystal sheet (illumination unit) may be installed on the surface of the instrument panel 30, and the pattern P may be displayed on the liquid crystal panel or liquid crystal sheet. When a liquid crystal panel or liquid crystal sheet is used instead of the projector 20, the control unit 100 controls the liquid crystal panel or liquid crystal sheet in cooperation with the HUD device 10. The liquid crystal panel or liquid crystal sheet is an example of the illumination unit.

[0037] Furthermore, in this embodiment, the display of the pattern P when the real aerial image RI is displayed has been described, but as long as the virtual aerial image VI can be displayed inside the vehicle C, the pattern P may be displayed corresponding to the virtual aerial image VI. For example, in FIG. 2, a new light-transmitting member is installed in front of the windshield WS as seen from the occupant DR, and the HUD device 10 irradiates the display light L onto the newly installed light-transmitting member, thereby making it possible to display the virtual aerial image VI on a virtual aerial image plane VIA set between the windshield WS and the light-transmitting member. In such a configuration, the pattern P may be displayed corresponding to the virtual aerial image VI.

[0038] Furthermore, the control unit 100 may control the projector 20 to blink or gradually increase the brightness of the pattern P before the aerial image RI is displayed (i.e., during the second step S2 in FIG. 4). This makes it easier to guide the gaze of the occupant DR to the pattern P.

[0039] Furthermore, the control unit 100 may control the projector 20 to vary the luminance of the pattern P according to the brightness of the external light (for example, daytime and nighttime, sunny and rainy (cloudy), inside and outside a tunnel, etc.) in conjunction with the display of the meter display or the center information display (CID). Specifically, the luminance of the pattern P may be increased when the external light is bright, and decreased when the external light is dark.

[0040] In this way, the aerial display device 1 of this embodiment has a HUD device 10 that displays a spatial image RI on a spatial image plane RIA located away from the surface of the instrument panel 30 located inside the vehicle C, a projector 20 that illuminates a specific portion on the surface of the instrument panel 30 that corresponds to the spatial image plane RIA, and a control unit 100 that controls the HUD device 10 and the projector 20 in cooperation with each other, making it easier for the occupant DR to identify the position where the spatial image RI appears, and also making it possible to guide the occupant DR's gaze to the pattern P illuminated by the projector 20, focus on the physical object that is the instrument panel 30, and make the spatial image RI appear at the position of the pattern P, thereby enabling the occupant DR to smoothly focus on the spatial image RI.

[0041] Furthermore, in the aerial display device 1 of this embodiment, the control unit 100 controls the HUD device 10 and the projector 20 in cooperation with each other so as to start illuminating a specific portion of the instrument panel 30 surface before the HUD device 10 starts displaying the spatial image RI, and to end illuminating the specific portion of the instrument panel 30 surface after the display of the spatial image RI by the HUD device 10 disappears. This makes it possible to notify the occupant DR of the display position of the spatial image RI in advance, and by guiding and focusing the line of sight on the instrument panel 30 surface corresponding to the display position of the spatial image RI before the spatial image RI is displayed, it becomes possible to smoothly focus on the spatial image RI when it appears.

[0042] Furthermore, in the aerial display device 1 of this embodiment, the control unit 100 controls the display of the pattern P by the projector 20 to flash or gradually increase the brightness before the spatial image RI is displayed by the HUD device 10, so that the position where the spatial image RI appears can be highlighted to guide the gaze of the occupant DR to the pattern P.

[0043] Furthermore, in the aerial display device 1 of this embodiment, the projector 20 is provided on the ceiling of the vehicle C, and the control unit 100 controls the HUD device 10 and the projector 20 in cooperation with each other so as to change the display position or display mode of the pattern P by the projector 20 in response to a change in the display position or display mode of the spatial image RI by the HUD 10. This allows for a high degree of freedom in the display position and display mode of the spatial image RI and the pattern P, enabling a wide variety of displays to be produced.

[0044] (Second embodiment of the present invention) A second embodiment of the present invention will be described below with reference to the drawings. In the aerial display device 1 according to this embodiment, the display device that displays an aerial image RI on a spatial image plane RIA includes a display device 40 (display unit) that emits display light L representing the aerial image RI, instead of the HUD device 10, and a microlens array 50 that displays the aerial image RI on the spatial image plane RIA based on the display light L. The display device 40 is an example of the display unit. Note that descriptions of this embodiment that overlap with the first embodiment will be omitted.

[0045] Fig. 7 is a schematic diagram showing a configuration when a spatial image RI is displayed in the aerial display device 1 according to this embodiment. The difference from the configuration of Fig. 1 in the first embodiment is that, as described above, the present embodiment includes a display device 40 that generates and emits display light L representing the spatial image RI, and a microlens array 50 that receives the display light L emitted by the display device 40 and forms an image as a spatial image RI. Note that in this embodiment, the control unit 100 is configured to control the display device 40 and an illumination unit such as the projector 20 in cooperation with each other.

[0046] The display 40 is disposed inside the instrument panel 30 and includes a display panel (not shown) made of, for example, a TFT liquid crystal panel or a DMD (Digital Micro-mirror Device) element, and a light source (not shown) that irradiates illumination light onto the display panel from the rear side of the display panel. The display 40 generates display light L representing the aerial image RI under the control of the control unit 100, and emits the display light L toward the microlens array 50.

[0047] The microlens array 50 is disposed on the surface of the instrument panel 30 and has a configuration having a number of microlenses. The display light L emitted from the display 40 is reflected by the microlenses and condensed on a virtual spatial image plane RIA, and an aerial image RI is formed. The spatial image plane RIA is formed at a position that is plane-symmetrical with respect to the display 40 with the microlens array 50 at the center.

[0048] The configuration other than that related to the display of the aerial image RI is the same as that described in the first embodiment, and therefore detailed description thereof will be omitted. Note that a micromirror array may be used instead of the microlens array 50.

[0049] Other embodiments of the present invention Hereinafter, another embodiment of the present invention will be described with reference to the drawings. In this embodiment, the description overlapping with the first and second embodiments will be omitted.

[0050] FIG. 8 is a diagram showing an example of a variation in the case where the spatial image RI appears in the aerial display device 1 according to the present embodiment. In the example of FIG. 8, the spatial image RI is displayed in such a manner that it gradually pops out from the pattern P displayed on the instrument panel 30 surface. That is, under the control of the control unit 100, the display unit such as the HUD device 10 and the display 40 generates and displays a moving image in which the spatial image RI gradually pops out from the pattern P. In addition, when the display of the spatial image RI is terminated, the display unit is displayed in such a manner that the spatial image RI gradually sinks into the pattern P. In this case, under the control of the control unit 100, the display unit such as the HUD device 10 and the display 40 generates and displays a moving image in which the spatial image RI gradually sinks into the pattern P. By displaying the spatial image RI in this manner, the production effect is enhanced, and the occupant DR is more likely to pay attention to the spatial image RI.

[0051] FIG. 9 is a diagram showing an example of a variation of the display mode of the pattern P in the display mode of FIG. 8. In the example of FIG. 9, as shown in FIG. 8, the display mode is such that ripples are generated in the pattern P as the spatial image RI pops out. That is, according to the control of the control unit 100, the lighting unit such as the projector 20 generates and displays a moving image in which ripples gradually spread as the spatial image RI appears. At this time, after the spatial image RI is displayed, the pattern P itself may disappear together with the ripples, or as shown in FIG. 9, a performance may be performed in which the ripples gradually attenuate and disappear while spreading. Also, when the display mode in which the spatial image RI gradually sinks into the pattern P when the display of the spatial image RI is terminated, as shown in FIG. 9, the display mode may be such that the ripples gradually spread as the spatial image RI sinks into the pattern P. The performance effect can be enhanced by displaying the pattern P in this way. Also, the pattern P by the projector 20 was displayed when the spatial image RI appeared or disappeared, but may be continuously displayed together with the spatial image RI to enhance the performance effect of the spatial image RI. [Explanation of symbols]

[0052] C Vehicle DR Crew Member P design RI Aerial Image (Real Image) RIA spatial image plane (real image) VI Spatial Image (Virtual Image) VIA spatial image plane (virtual image) WS Windshield 1 Aerial display device 10 HUD device 11 Light source 12 Display element 13 Reflector 20 Projector 30 Instrument panel 31 Handle 32 Hand 40 Display 50 Microlens Array 100 Control section 110 Display position determination section 120 Display processing unit

Claims

1. A display unit that displays an aerial image on a spatial image plane located away from a fixed facility or object or a human body located in a vehicle interior; an illumination unit that illuminates at least a predetermined portion of the fixed equipment, the object, or the body that corresponds to the spatial image plane; A control unit that controls the display unit and the illumination unit in cooperation with each other; An aerial display device comprising:

2. The control unit is The display unit and the illumination unit are controlled in cooperation with each other so that illumination of the predetermined portion is started before the display of the aerial image by the display unit is started, and illumination of the predetermined portion is ended after the display of the aerial image by the display unit is disappeared.

2. The aerial display device according to claim 1.

3. The control unit is In the illumination of the predetermined portion, the display unit is controlled so as to blink or gradually increase brightness before the aerial image is displayed by the display unit.

3. The aerial display device according to claim 2.

4. The illumination unit includes: a projection unit that is provided at a predetermined position of the vehicle and projects a desired image onto the predetermined portion, The control unit is The display unit and the projection unit are controlled in a coordinated manner so that a position or a display mode of the projected display is changed in accordance with a change in a position or a display mode of the spatial image by the display unit. The aerial display device according to any one of claims 1 to 3.

5. The aerial display device is a head-up display device that switches between a virtual image and a real image of a display image represented by the display light by emitting the display light toward a translucent member of the vehicle, The head-up display device a light source that emits light that becomes the display image; the display unit displays the display image based on the light emitted by the light source; having The spatial image is a real image of the display image displayed by the display unit.

5. The aerial display device according to claim 4.

Images