JP2017114468A - Image display device, image display method, and control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a head-up display device by which a driver can instantaneously and appropriately recognize the information whose importance is relatively high while a vehicle is running.SOLUTION: An image display device 1 for a vehicle includes a video data acquisition part 5, a projection part 3, and a projection control part 4. The video data acquisition part 5 acquires video data in which first information whose importance while a vehicle is running is relatively low and second information whose importance while the vehicle is running is relatively high are synthesized. The projection part 3 projects the video data as a video light. The projection control part 4 controls the projection part 3. The projection control part 4 controls the projection part 3 so that the driver of the vehicle visually recognizes that the first information is displayed with a first scene whose degree of change while the vehicle is running is relatively large of scenes that the driver of the vehicle views, as a background, and the second information is displayed with a second scene whose degree of change while the vehicle is running is relatively small of the scenes that the driver of the vehicle views, as a background.SELECTED DRAWING: Figure 1

Description

The present invention relates to an image display device for a vehicle, an image display method, and a control program.
About.

  In recent years, a head-up display (hereinafter referred to as HUD) is known as an image display device for a vehicle that displays information related to vehicle operation such as navigation information and traveling speed on a windshield of the vehicle. Patent Document 1 describes a HUD that displays information related to vehicle warnings on a vehicle windshield in addition to information related to vehicle operation.

JP2011-218891A

  In HUD, information with relatively high importance, such as information related to vehicle warnings, needs to be displayed so that the driver can instantly and appropriately recognize it. However, when the relatively high importance information is displayed as a virtual image with the background of the vehicle outside view seen through the front windshield having a relatively large degree of change when the vehicle is running, The driver may be confused by changes in the background outside the vehicle and may not be able to recognize such information instantaneously and appropriately. In addition, in order to instantly and appropriately recognize relatively important information using a virtual image by HUD, a conspicuous color may be used or display brightness may be increased. In such a case, the visual field of the driver may be hindered depending on the virtual image presentation position and the presentation content.

  The present invention has been made in view of the above background, and the present invention provides a head-up display device that allows a driver to instantaneously and appropriately recognize information that is relatively high in importance when the vehicle is traveling. With the goal.

  The present invention is an image display device for a vehicle, and includes a video data acquisition unit, a projection unit, and a projection control unit. The video data acquisition unit acquires video data in which first information that is relatively low in importance when the vehicle is traveling and second information that is relatively high in importance when the vehicle is traveling are combined. The projection unit projects the video data as video light. The projection control unit controls the projection unit. The first information is displayed with the first scenery having a relatively large degree of change during the running of the scenery as viewed by the driver of the vehicle as the background, and the second information is the running of the vehicle in the scenery. The projection control unit controls the projection unit so that the driver of the vehicle can visually recognize the second scenery with a relatively small change in time as a background.

  The present invention is an image display device for a vehicle, and includes a projection unit that projects video data as video light, a projection control unit that controls the projection unit, and a video data acquisition unit. The video data acquisition unit further includes a first information acquisition unit, a second information acquisition unit, and a video data generation unit. The first information acquisition unit acquires first information that is relatively low in importance when the vehicle is traveling. The second information acquisition unit acquires second information that is relatively high in importance when the vehicle is traveling. The video data generation unit generates video data in which the second information is combined with the first information when the second information is acquired by the second information acquisition unit. The first information is displayed with the first scenery having a relatively large degree of change during the running of the scenery as viewed by the driver of the vehicle as the background, and the second information is the running of the vehicle in the scenery. The projection control unit controls the projection unit so that the driver of the vehicle can visually recognize the second scenery with a relatively small change in time as a background.

  The present invention provides an image display using an image display device for a vehicle including a video data acquisition unit that acquires video data, a projection unit that projects video data as video light, and a projection control unit that controls the projection unit. It is about the method. In the image display method, the video data acquisition unit generates video data obtained by combining first information that is relatively low in importance when the vehicle is traveling and second information that is relatively high in importance when the vehicle is traveling. It has a step to acquire. Further, in the image display method, the projection control unit displays the first information with the first scenery having a relatively large degree of change when the vehicle is running out of the scenery visually observed by the driver of the vehicle, A step of controlling the projection unit so that the driver of the vehicle can visually recognize the second information when the second information is displayed against the background of the second scenery having a relatively small degree of change during driving of the vehicle. ing.

  The present invention relates to a control program for controlling an image display device for a vehicle, comprising: a video data acquisition unit that acquires video data; a projection unit that projects video data as video light; and a projection control unit that controls the projection unit. It is about. In the control program, the video data acquisition unit acquires video data obtained by combining the first information having a relatively low importance level when the vehicle is traveling and the second information having a relatively high importance level when the vehicle is traveling. A processing procedure is provided. In the control program, the projection control unit displays first information with a first scenery having a relatively large degree of change when the vehicle is running out of the scenery viewed by the driver of the vehicle as the background. Including a processing procedure for controlling the projection unit so that the driver of the vehicle can visually recognize the second information when the second information is displayed with the second scenery having a relatively small degree of change when the vehicle is traveling. . The control program causes the computer to execute these processes.

  According to the present invention, the driver can instantly and appropriately recognize information with relatively high importance when the vehicle is traveling.

1 is a diagram schematically illustrating a schematic configuration of an image display device according to a first embodiment; FIG. 3 is a diagram schematically illustrating an example of an installation mode of the image display device according to the first embodiment in a vehicle. It is a figure which shows typically another example of the installation aspect in the vehicle of the image display apparatus concerning Embodiment 1. FIG. It is a figure which shows typically another example of the installation aspect in the vehicle of the image display apparatus concerning Embodiment 1. FIG. It is a figure which shows schematic structure of a combiner. FIG. 3 is a diagram illustrating an example of image light projected on a windshield that is visually recognized by a driver of a vehicle in the image display device according to the first exemplary embodiment; FIG. 3 is a block diagram illustrating a schematic configuration of an image display apparatus according to a second embodiment. FIG. 6 is a block diagram illustrating a schematic configuration of an image display apparatus according to a third embodiment. FIG. 10 is a diagram schematically illustrating an example of an installation mode of an image display device according to a third embodiment in a vehicle. FIG. 10 is a diagram schematically illustrating another example of an installation mode of an image display device according to a third embodiment in a vehicle. FIG. 10 is a diagram schematically illustrating still another example of an installation mode of an image display device according to a third embodiment in a vehicle. The image display apparatus concerning Embodiment 3 WHEREIN: When the 2nd information acquisition part has not acquired 2nd information, the figure which shows an example of the image light projected on the windshield visually recognized by the driver | operator of a vehicle It is. In the image display device according to the third exemplary embodiment, when the second information acquisition unit acquires the second information, it is an example of video light projected on the windshield that is visually recognized by the driver of the vehicle. . In the image display device according to the third exemplary embodiment, the optical path changing unit is a flowchart showing a flow of processing for changing the optical path of the video light projected from the video light projecting unit.

[Embodiment 1]
Embodiment 1 of the present invention will be described below with reference to the drawings.
An image display device for a vehicle according to an embodiment of the present invention is a head-up display (hereinafter referred to as HUD). FIG. 1 is a block diagram showing a schematic configuration of an image display apparatus 1 according to an embodiment of the present invention. As shown in FIG. 1, the image display device 1 includes a control unit 2 and a projection unit 3. The control unit 2 further includes a video data acquisition unit 5 and a projection control unit 4. The control unit 2 is a computer including a CPU, a ROM, a RAM, and the like.

  The video data acquisition unit 5 in the control unit 2 receives from the display information supply means 10 such as a CAN (Controller Area Network) or a navigation system, the first information that is relatively less important when the vehicle is traveling and the first information when the vehicle is traveling. Video data obtained by combining second information with relatively high importance is acquired. For example, the first information is information related to vehicle operation, and the second information is information related to a vehicle warning. Here, the information related to the operation of the vehicle is specifically information related to the travel speed, the engine speed, the remaining amount of fuel (energy) acquired from the CAN, and the travel route acquired from the navigation system. More specifically, the vehicle warning information is obtained from CAN, such as an abnormality warning such as water temperature / oil temperature, fuel (energy) remaining amount reduction warning, tire air pressure reduction warning, system failure warning, or CAN. For example, a traveling speed excess warning based on traveling speed and speed limit information acquired from the navigation system. The projection control unit 4 in the control unit 2 controls the projection unit 3.

  The projection control unit 4 and the video data acquisition unit 5 in the control unit 2 can be realized by causing a computer or the like to execute a program. More specifically, the projection control unit 4 and the video data acquisition unit 5 are realized by the control unit 2 by loading a program stored in the program memory into the main storage device and executing the program under the control of the CPU. . Further, the projection control unit 4 and the video data acquisition unit 5 are not limited to being realized by software by a program, but may be realized by any combination of hardware, firmware, and software.

  The projection unit 3 projects the video data as video light. The projection unit 3 further includes an image light projection unit 6 and an optical unit 7. The video light projection unit 6 includes a light source, an image display element, various optical lenses, and the like, and generates and projects video light based on a video data signal (video signal) output from the video data acquisition unit 5. The optical unit 7 is an optical system including a concave mirror and an intermediate image screen.

  FIG. 2 is a diagram schematically illustrating an example of an installation mode in the vehicle 50 of the image display device 1 according to the embodiment of the present invention. As shown in FIG. 2, the projecting unit 3 projects the image light generated by the image light projecting unit 6 onto the windshield 51 after being reflected and enlarged by the optical unit 7. The image light projected on the windshield 51 is reflected by the windshield 51 to reflect a part of the image light, so that the reflected image light is changed to an optical path toward the driver P. Accordingly, the driver P can visually recognize the virtual image 60 based on the image light forward through the windshield 51. Therefore, the windshield 51 has a function as a virtual image presentation surface.

  FIG. 3 is a diagram schematically illustrating an example different from FIG. 2 of an installation mode of the image display device 1 according to the embodiment of the present invention in the vehicle 50. As shown in FIG. 3, the image light generated by the projection unit 3 and the image light projection unit 6 is reflected and enlarged by the optical unit 7 and projected onto the windshield 51 and the dashboard 54 which is an interior portion of the vehicle 50. The image light projected on the windshield 51 is reflected by the windshield 51 to reflect a part of the image light, so that the reflected image light is changed to an optical path toward the driver P. Further, the image light projected on the dashboard 54 is reflected by the dashboard 54 so that a part of the image light is reflected, so that the reflected image light is changed to an optical path toward the driver P. Thus, the driver P can visually recognize the video information including the virtual image via the windshield 51 and the virtual image 60 based on the video light reflected on the dashboard 54 forward. Therefore, the windshield 51 has a function as a virtual image presentation surface that presents information as a virtual image, and the dashboard 54 has a function as a reflection image presentation surface that presents information by reflecting video light. .

  FIG. 4 is a diagram schematically showing still another example of the installation mode of the image display device 1 according to the embodiment of the present invention in the vehicle 50, which is different from FIG. As shown in FIG. 4, the image display device 1 further includes a combiner 56 that receives the image light projected by the image light projection unit 6 and displays a virtual image 60. The combiner 56 is an optical element that is disposed in the vehicle 50 and reflects the image light projected from the projection unit 3. The combiner 56 includes a virtual image display portion 561 and a peripheral portion 562 having a light transmittance lower than that of the virtual image display portion 561 (see FIG. 5). The projection unit 3 reflects and enlarges the image light generated by the image light projection unit 6 by the optical unit 7 and projects the image light onto the combiner 56. The image light projected on the combiner 56 is changed by the combiner 56 so that the reflected image light is directed to the driver P by reflecting a part of the image light. Accordingly, the driver P can visually recognize the virtual image 60 based on the image light forward via the combiner 56. Therefore, the combiner 56 has a function as a virtual image presentation surface.

  FIG. 6 is a diagram illustrating an example of image light projected on an interior portion such as the windshield 51, the windshield 51, and the dashboard 54, or the combiner 56, which is visually recognized by the driver of the vehicle. As shown in FIG. 6, when image light is projected onto an interior portion such as the windshield 51, the windshield 51, and the dashboard 54, or the combiner 56, the driver sets a virtual image projection range 20 in front of the driver when viewing the vehicle. A virtual image and a reflected image regarding the first information 21 and the second information 22 can be seen in the scene 30. Here, the scenery 30 is a scenery outside the vehicle viewed by the driver through the windshield 51 or the combiner 56 and a scenery inside the vehicle such as an interior part such as the dashboard 54 or a peripheral part 562 of the combiner 56. Here, the scenery outside the vehicle is an outside scenery seen from the passenger compartment in which the driver of the vehicle 50 is boarded, and includes the vehicle body.

  The scenery 30 viewed by the driver of the vehicle 50 includes a first scenery 31 and a second scenery 32. The first landscape 31 has a relatively large degree of change when the vehicle is traveling in the landscape 30. The second scenery 32 is a scenery with a relatively small degree of change when the vehicle is traveling, and is a scenery through the windshield 51 or a scenery in the car. In the example of the installation mode in the vehicle 50 of the image display device 1 shown in FIG. 2, the second scenery 32 is a vehicle body portion of the vehicle 50 positioned in the direction in which the image light is projected, for example, the front bonnet portion 52 of the vehicle 50. is there. The front bonnet portion 52 is located below the scenery through the windshield 51 in the scenery 30 and hardly changes when the vehicle is traveling. The first scenery 31 is a scenery located above the front bonnet portion 52 in the scenery 30. For example, it is particularly effective that the vehicle body portion that becomes the second scenery 32, for example, the front bonnet portion 52 of the vehicle 50, is monochromatic.

  In the example of the installation mode in the vehicle 50 of the image display device 1 illustrated in FIG. 3, the second scenery 32 is an interior portion of the vehicle 50 that is located in the direction in which the image light is projected, that is, the dashboard 54. The dashboard 54 is located below the scenery through the windshield 51 in the scenery 30 and hardly changes when the vehicle is traveling. It is particularly effective that the dashboard 54 is of a single color or has a color or surface form that allows the driver to clearly see the reflected light due to the reflection of the image light.

  In the example of the installation mode of the image display device 1 in the vehicle 50 illustrated in FIG. 4, the first scenery is a background through a surface including the virtual image display portion 561 of the combiner 56, and the second scenery is displayed as a virtual image on the combiner 56. The peripheral portion 562 has a light transmittance lower than that of the portion 561. Since the peripheral part 562 in the combiner 56 has a low light transmittance, the influence of the scenery outside the vehicle is small and hardly changes when the vehicle is traveling. It is particularly effective that the peripheral edge 562 of the combiner 56 is a single color or has a color or surface form that allows the driver to clearly see the reflected light due to the reflection of the image light.

  The projection control unit 4 (see FIG. 1) is visually recognized by the driver of the vehicle when the first information 21 is displayed with the first landscape 31 as the background and the second information 22 is displayed with the second landscape 32 as the background. Thus, the projection unit 3 (see FIG. 1) is controlled. In FIG. 6, the 1st information 21 is the information regarding a travel speed and a travel route. The second information 22 is a fuel (energy) remaining amount decrease warning. The display form of the second information 22 may be set in advance for the color tone of the second scenery 32, and may be changeable by a user operation. The display form of the second information 22 is, for example, a light character display when the second vehicle color is a dark body color. When the second scenery is a light body color, the second information 22 is a complementary color of the body color.

  As described above, the first information 21 is information with relatively low importance when the vehicle is traveling, and the second information 22 is information with relatively high importance when the vehicle is traveling. The first information 21 is displayed with the first landscape 31 as the background, and the second information 22 is displayed with the second landscape 32 that hardly changes during traveling as the background, so that the importance of the vehicle when traveling is relative. The driver can quickly and appropriately recognize high information. In addition, since the position of the second information 22 is a position with the vehicle body portion of the vehicle 50 as a background, even if the color and display brightness of the second information 22 are increased, the driver's view is obstructed. There is no.

  In addition, since the second information 22 is a position with the vehicle body portion of the vehicle 50 as the background, the presentation position of the virtual image 60 can be positioned lower than when the virtual image 60 does not overlap the vehicle body portion of the vehicle 50. . Since the presentation position of the virtual image 60 is located below, the influence of the virtual image on the driver's field of view can be reduced.

[Embodiment 2]
The second embodiment of the present invention will be described below with reference to the drawings. In addition, about the part which is common in Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted. The difference from the first embodiment is that in the first embodiment, the video data acquisition unit acquires the video data in which the first information and the second information are synthesized in advance, whereas in the present embodiment, the video data acquisition is performed. The unit acquires the first information and the second information separately, and the video data acquisition unit generates video data by combining the first information and the second information.

  FIG. 7 is a block diagram showing a schematic configuration of the image display apparatus 101 according to the present embodiment. As shown in FIG. 7, the control unit 102 includes a video data acquisition unit 105 and a projection control unit 4. The control unit 102 is a computer including a CPU, a ROM, a RAM, and the like. The video data acquisition unit 105 includes a first information acquisition unit 105a, a second information acquisition unit 105b, and a video data generation unit 105c. The first information acquisition unit 105a acquires first information from the display information supply unit 110 such as a CAN or a navigation system. The second information acquisition unit 105b acquires the second information from the display information supply unit 110.

  The video data generation unit 105c generates video data obtained by combining the first information and the second information. The video data generation unit 105c generates the video data so that the first information is arranged above the video data and the second information is arranged below the video data. The video data generation unit 105c generates the video data so that the second information has a color tone having good visibility with respect to the color of the vehicle body part (front bonnet part 52 shown in FIG. 2) located in front of the vehicle. It may be.

  The projection control unit 4 and the video data acquisition unit 105 in the control unit 102 can be realized by causing a computer or the like to execute a program. More specifically, the projection control unit 4 and the video data acquisition unit 105 are realized by the control unit 102 by loading a program stored in the program memory into the main storage device and executing the program under the control of the CPU. . Further, the projection control unit 4 and the video data acquisition unit 105 are not limited to being realized by software by a program, but may be realized by any combination of hardware, firmware, and software.

  By doing as above, it is possible to cope with the case where the display information supply unit 110 transmits the first information and the second information separately to the video data acquisition unit.

[Embodiment 3]
The third embodiment of the present invention will be described below with reference to the drawings. Note that portions common to Embodiments 1 and 2 are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 8 is a block diagram showing a schematic configuration of the image display apparatus 201 according to the embodiment of the present invention. As illustrated in FIG. 8, an optical path changing unit 8 is added to the projection unit 203 in the image display device 201 according to the present embodiment, compared to the image display device 101 according to the second embodiment illustrated in FIG. 7. That is, the projection unit 203 includes the image light projection unit 6, the optical unit 7, and the optical path changing unit 8. The optical path changing unit 8 changes the optical path of the image light projected from the image light projecting unit 6.

  FIG. 9 is a diagram schematically illustrating an example of an installation mode in the vehicle 50 of the image display device 201 according to the embodiment of the present invention. As shown in FIG. 9, the optical path changing unit 8 drives the concave mirror in the optical unit 7, so that the position where the image light is projected against the scene 30 can be moved up and down. The virtual image displayed above the scenery 30 is the virtual image 60a, and the virtual image displayed below the scenery 30 is the virtual image 60b.

  FIG. 10 is a diagram schematically illustrating another example of the installation mode of the image display device 201 according to the embodiment of the present invention in the vehicle 50. As shown in FIG. 10, the optical path changing unit 8 drives the concave mirror in the optical unit 7, so that the position where the image light is projected can be moved up and down. The virtual image displayed above the scenery 30 is the virtual image 60a, and the virtual image displayed below the scenery 30 is the virtual image 60b.

  FIG. 11 is a diagram schematically illustrating still another example of the installation mode of the image display device 201 according to the embodiment of the present invention in the vehicle 50. As shown in FIG. 11, when the optical path changing unit 8 drives a concave mirror or the like in the optical unit 7, the position where the image light is projected can be moved up and down. The virtual image displayed above the scenery 30 is the virtual image 60a, and the virtual image displayed below the scenery 30 is the virtual image 60b.

  As shown in FIG. 8, the optical path changing unit 8 is controlled by the projection control unit 4. Specifically, when the second information acquisition unit 105b in the video data acquisition unit 105 acquires the second information, the position where the second information is displayed with the second scenery as a background and is visually recognized by the driver of the vehicle. The projection control unit 4 controls the optical path changing unit 8 so that the image light is projected onto the optical path. The optical path changing unit 8 drives the concave mirror of the optical unit 7 based on a control signal from the projection control unit 4 to change the direction of the concave mirror. The optical path changing unit 8 may have another configuration as long as the optical path of the image light can be changed.

  FIG. 12 shows a window that is visually recognized by the driver of the vehicle when the second information acquisition unit 105b (see FIG. 8) has not acquired the second information (that is, the video data is only the first information). It is a figure which shows an example of the image light projected on interior parts, such as the shield 51, the windshield 51, and the dashboard 54, or the combiner 56. FIG. As shown in FIG. 12, since only the first information 21 is included in the virtual image projection range 20a, the virtual image projection range 20a has the first scene 31 as the background. In FIG. 12, the first information 21 is information relating to the traveling speed, the engine speed, and the traveling route.

  FIG. 13 shows the driving of the vehicle when the second information acquisition unit 105b (see FIG. 8) acquires the second information (that is, the video data is a combination of the first information and the second information). It is a figure which shows an example of the image light projected on the windshield 51 visually recognized by the person. As shown in FIG. 13, since the virtual image projection range 20b includes the second information 22 in addition to the first information 21, the portion of the virtual image projection range 20b that includes the first information 21 includes the first scenery 31. The portion including the second information 22 is the background, and the second landscape 32 is the background. The second scenery 32 is a front bonnet portion 52 (see FIG. 9), a dashboard 54 (see FIG. 10), or a peripheral portion 562 (see FIG. 11) of the combiner 56 as a vehicle body portion located in front of the vehicle 50. . The front bonnet portion 52, the dashboard 54, or the peripheral portion 562 of the combiner 56 is located below the scenery 30 and hardly changes when the vehicle travels. In FIG. 13, the first information 21 is information relating to the travel speed and the travel route. The second information 22 is a fuel (energy) remaining amount reduction warning.

  Here, the flow of processing in which the optical path changing unit 8 shown in FIG. 8 changes the optical path of the image light projected from the image light projection unit 6 will be described with reference to FIG. In the following description, reference is also made to FIG. 8 as appropriate.

  FIG. 14 is a flowchart showing a flow of processing in which the optical path changing unit 8 changes the optical path of the video light projected from the video light projection unit 6. As shown in FIG. 14, first, it is determined whether or not the second information is acquired by the second information acquisition unit 105b in the video data acquisition unit 105 (step S1). When the second information is acquired in step S1 (in the case of YES), the video data generation unit 105c generates video data obtained by combining the first information with the second information (step S2).

  Subsequent to step S2, the video light projection unit 6 that has received the video data from the video data generation unit 105c projects video light based on the video data (step S3). Subsequently, the optical path changing unit 8 drives the concave mirror of the optical unit 7 based on the control signal from the projection control unit 4 and changes the projection direction of the image light from the first scenery to the second scenery located below. It moves in the direction in which information is projected (step S4).

  As described above, the first information is, for example, information related to the operation of the vehicle, and is information that is relatively less important when the vehicle is traveling than the second information. In addition, the first information is not always so urgent, but there are many things that are always displayed such as traveling speed. For this reason, when only 1st information is contained in video data, as shown in FIG. 12, all the virtual image projection ranges 20a are made into the 1st scenery 31 which is a position where it is easy to see from a driver | operator. As a result, the driver can confirm the first information without frequently moving his / her line of sight, so that there is little fatigue associated with confirmation of the information.

  On the other hand, the second information is information that is relatively high in importance when the vehicle is traveling, such as information related to a warning of the vehicle. The second information is displayed only when necessary, and is highly urgent. If the second information is displayed with the first scenery 31 having a relatively large degree of change when the vehicle is running as a background, the driver may be confused by the change in the background and the driver cannot recognize the second information instantaneously and appropriately. There is. For this reason, when the video acquisition unit acquires the second information, the optical path changing unit changes the optical path of the video light so that the second information is displayed with the second scenery having a relatively small degree of change as the background. As a result, the driver can instantly and appropriately recognize information with relatively high importance when the vehicle is traveling. In addition, since the position of the second information 22 is a position with the vehicle body portion of the vehicle 50 as a background, even if the color and display brightness of the second information 22 are increased, the driver's view is obstructed. There is no.

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Image display apparatus 2 Control part 3 Projection part 4 Projection control part 5 Image | video data acquisition part 6 Image | video light projection part 7 Optical part 10 Display information supply means

Claims (13)

An image display device for a vehicle,
A video data acquisition unit that acquires video data obtained by combining first information that is relatively low in importance when the vehicle is traveling and second information that is relatively high in importance when the vehicle is traveling;
A projection unit that projects the video data as video light;
A projection control unit for controlling the projection unit,
The first information is displayed with a first scenery having a relatively large degree of change during travel of the vehicle as viewed from the scenery viewed by the driver of the vehicle, and the second information is included in the scenery. An image display in which the projection control unit controls the projection unit so that a driver of the vehicle can visually recognize the second scenery with a relatively small degree of change during traveling of the vehicle as a background. apparatus.   The said 2nd scenery is a vehicle body part of the said vehicle located in the direction in which the said projection part projects an image | video, The said 1st scenery is a vehicle outside scenery above the said vehicle body part, The Claim 1 Image display device.   The said 2nd scenery is an interior part of the said vehicle located in the direction in which the said projection part projects an image | video, The said 1st scenery is a vehicle outside scenery above the said vehicle body part, The Claim 1 Image display device. Further comprising a combiner that receives the image light projected by the projection unit and displays a virtual image;
The first scenery is a background through a surface including a virtual image display portion of the combiner,
The image display device according to claim 1, wherein the second scenery is a peripheral portion having a light transmittance lower than that of the virtual image display portion in the combiner. An image display device for a vehicle,
A first information acquisition unit that acquires first information that is relatively low in importance when the vehicle is traveling; a second information acquisition unit that acquires second information that is relatively high in importance when the vehicle is traveling; A video data acquisition unit having a video data generation unit that generates video data obtained by combining the first information with the first information when the second information is acquired by the second information acquisition unit;
A projection unit that projects the video data as video light;
A projection control unit for controlling the projection unit,
The first information is displayed with a first scenery having a relatively large degree of change during travel of the vehicle as viewed from the scenery viewed by the driver of the vehicle, and the second information is included in the scenery. An image display in which the projection control unit controls the projection unit so that a driver of the vehicle can visually recognize the second scenery with a relatively small degree of change during traveling of the vehicle as a background. apparatus. The projection unit includes an optical path changing unit that changes an optical path of the image light,
When the video data acquisition unit acquires the second information, the video light is projected to a position where the second driver can visually recognize the second information when the second landscape is displayed as a background. The image display apparatus according to claim 5, wherein the projection control unit controls the optical path changing unit. The second scenery is a vehicle body part of the vehicle positioned in a direction in which the projection unit projects an image, and the first scenery is an exterior scenery above the vehicle body part,
The video data generation unit generates the video data so that the first information is arranged above the video data and the second information is arranged below the video data. The image display device described. The second scenery is an interior part of the vehicle located in a direction in which the projection unit projects an image, and the first scenery is an exterior view above the interior part,
The video data generation unit generates the video data so that the first information is arranged above the video data and the second information is arranged below the video data. The image display device described. Further comprising a combiner that receives the image light projected by the projection unit and displays a virtual image;
The first scenery is a background through a surface including a virtual image display portion of the combiner,
The second scenery is a peripheral portion having a low light transmittance disposed below the virtual image display portion in the combiner.
The video data generation unit generates the video data so that the first information is arranged above the video data and the second information is arranged below the video data. The image display device described.   The said video data production | generation part produces | generates the said video data so that the said 2nd information becomes a color tone with sufficient visibility with respect to the color of the said 2nd scenery, The any one of Claims 5-9. Image display device.   The image display device according to any one of claims 1 to 10, wherein the first information is information relating to operation of the vehicle, and the second information is information relating to a warning of the vehicle. An image display method using an image display device for a vehicle, comprising: a video data acquisition unit that acquires video data; a projection unit that projects the video data as video light; and a projection control unit that controls the projection unit. There,
The video data acquisition unit acquires video data in which first information that is relatively low in importance during traveling of the vehicle and second information that is relatively high in importance during driving of the vehicle are combined. When,
The projection control unit displays the first information with a first scenery having a relatively large degree of change during travel of the vehicle as viewed by the driver of the vehicle, and the first information is displayed in the scenery. A step of controlling the projection unit so that a driver of the vehicle can visually recognize the second information when the second information is displayed against a background of a second landscape with a relatively small degree of change when the vehicle is running. An image display method provided. A control program for controlling an image display device for a vehicle, comprising: a video data acquisition unit that acquires video data; a projection unit that projects the video data as video light; and a projection control unit that controls the projection unit. And
On the computer,
Process in which the video data acquisition unit acquires video data in which first information that is relatively low in importance during traveling of the vehicle and second information that is relatively high in importance during driving of the vehicle are combined Procedure and
The projection control unit displays the first information with a first scenery having a relatively large degree of change during travel of the vehicle as viewed by the driver of the vehicle, and the first information is displayed in the scenery. A processing procedure for controlling the projection unit so that a driver of the vehicle can visually recognize the second information when the second information is displayed against a background of a second landscape with a relatively small degree of change during travel of the vehicle; A control program to execute.

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