JP6729327B2 - Head-up display device, display method, and program - Google Patents

Description

The present invention relates to a head-up display device, a display method and a program.

A head-up display (HUD: Head-Up Display) device is mounted on a vehicle and displays vehicle information as a virtual image on a projection member such as a windshield. As a result, the driver can recognize necessary vehicle information without moving the line of sight during driving.

The HUD device disclosed in Patent Document 1 includes a first display device that emits a first display light, a second display device that emits a second display light, and a second display device that transmits the first display light and a second display device. And a transflective plate that reflects the display light. The first indicator emits the first display light, transmits the first display light to the transmissive reflector, and then projects the first display light onto the projection member. The second indicator emits the second display light, reflects the second display light on the transmissive reflection plate, and then projects the second display light on the projection member. With this configuration, the user can visually recognize two images (virtual images) with different display distances.

JP, 2007-264529, A

In the HUD device disclosed in Patent Document 1, when any one of the display devices fails, there is a problem that the image (virtual image) that should have been displayed by the projection light projected from the failed display device is not displayed. is there.

The present invention has been made in view of the above circumstances, and even when one display unit fails, a head-up display device capable of displaying vehicle information that the failed display unit should have displayed, The purpose is to provide methods and programs.

In order to achieve the above object, the head-up display device according to the first aspect of the present invention is
A control unit that outputs image information indicating the first image and the second image based on the vehicle information;
A display that emits display light indicating the first image and the second image indicated by the image information output by the controller,
An optical system for displaying a first virtual image corresponding to the first image and a second virtual image corresponding to the second image by guiding the display light emitted from the display to a projection member;
A discriminating section for discriminating whether or not the first virtual image is displayed;
Equipped with
When the determination unit determines that the first virtual image is not displayed, the determination unit outputs information indicating that the first virtual image is not displayed to the control unit,
An image in which the information included in the first image is included in the second image in response to the information indicating that the first virtual image is not displayed, which is output from the determination unit. Output to the display as information,
It is characterized by

In order to achieve the above object, a display method for displaying a virtual image on a head-up display device according to a second aspect of the present invention is
An image display step of displaying a first virtual image corresponding to the first image and a second virtual image corresponding to the second image by emitting display light indicating the first image and the second image. ,
A determining step of determining whether or not the first virtual image is displayed;
Equipped with
If it is determined in the determining step that the first virtual image is not displayed, the image displaying step indicates a third image in which the information included in the first image is included in the second image. Emitting display light, and displaying a third virtual image corresponding to the third image from the display light,
It is characterized by

In order to achieve the above object, a program according to a third aspect of the present invention is
A display that emits display light showing the first image and the second image;
An optical system for displaying a first virtual image corresponding to the first image and a second virtual image corresponding to the second image from the display light;
A computer for controlling a head-up display device including
Determination means for determining whether or not the first virtual image is displayed,
Control means for controlling the display,
Function as
When the determining unit determines that the first virtual image is not displayed, the control unit displays the third image in which the information included in the first image is included in the second image. Causing the display to emit toward the optical system as light,
It is characterized by

According to the present invention, even when one display unit fails, the vehicle information that should have been displayed by the failed display unit can be displayed.

1 is a diagram showing a vehicle equipped with a HUD device according to an embodiment. It is a figure which shows the structure of the HUD apparatus which concerns on embodiment. 1 is a block diagram showing an electrical configuration of a vehicle equipped with a HUD device according to an embodiment. 7 is a flowchart showing a display process according to the embodiment. It is a figure for demonstrating the virtual image which the HUD apparatus which concerns on embodiment displays. It is a figure for demonstrating the virtual image which the HUD apparatus which concerns on embodiment displays. It is a figure for demonstrating the virtual image which the HUD apparatus which concerns on embodiment displays. It is a figure for demonstrating the virtual image which the HUD apparatus which concerns on a modification displays. It is a figure for demonstrating the virtual image which the HUD apparatus which concerns on a modification displays. It is a figure for demonstrating the virtual image which the HUD apparatus which concerns on a modification displays. (A) And (B) is a figure showing the composition of the HUD device concerning a modification.

Hereinafter, a head-up display device according to an embodiment for carrying out the present invention will be described with reference to the drawings.

As shown in FIG. 1, head-up display device 100 (hereinafter, HUD device 100) according to the present embodiment is mounted on a dashboard of vehicle 300 such as an automobile. As shown in FIG. 2, the HUD device 100 emits display lights N1 and N2 that display a first image and a second image toward a windshield 310 that is an example of a projection member. The viewer (mainly the driver E) receives the display lights N1 and N2 reflected by the windshield 310 and can visually recognize the first virtual image V1 and the second virtual image V2 that are superimposed on the real scene seen through the windshield 310. Become.

The HUD device 100 includes a housing 110 that houses each member, a first display device 120 that emits the display light L1, a second display device 130 that emits the display light L2, and display lights L1 and L2. By doing so, the first screen 140 and the second screen 150 which emit the display lights N1 and N2 corresponding to the formed display image, the first plane mirror 160 which reflects the display light N1, and the first screen mirror 160 which reflects the display light N1 Two plane mirrors 170, a half mirror 180 that reflects the display light N1 and transmits the display light N2, and a concave mirror (reflection member) 190 that reflects the display lights N1 and N2 arriving from the half mirror 180 to the windshield 310. The control unit 200 that controls the display of the virtual image on the windshield 310, and the determination unit 210 that determines whether the first display device 120 and the second display device 130 are out of order.

The housing 110 has a box shape and is made of black light-shielding resin. A part of the housing 110 has an opening through which the display lights N1 and N2 emitted from the first screen 140 and the second screen 150 pass. The opening is covered with a transparent resin cover.

As shown in FIG. 3, the first display device 120 includes a light emitting element 121 and a display element 122. The second display 130 includes a light emitting element 131 and a display element 132. The light emitting elements 121 and 131 are composed of LEDs (Light Emitting Diodes), halogen lamps, and the like. The display elements 122 and 132 are composed of reflective display elements such as liquid crystal DMD (Digital Micro Mirror Device) and LCOS (registered trademark: Liquid Crystal On Silicon), or transmissive display elements such as TFT (Thin Film Transistor) liquid crystal panels. To be done.

Returning to FIG. 2, the first screen 140 and the second screen 150 are transmissive screens including a holographic diffuser, a microlens array, a diffusion plate, and the like. The first screen 140 is installed on the optical path of the display light L1, and the second screen 150 is installed on the optical path of the display light L2. When the display light L1 is incident on one surface of the first screen 140 from the first display device 120, an image is displayed on the other surface. Along with this, the display light N1 corresponding to the image displayed on the first screen 140 is emitted toward the first plane mirror 170. When the display light L2 is incident on the one surface of the second screen 150 from the second display 130, an image is displayed on the other surface. Along with this, the display light N2 corresponding to the image displayed on the second screen 150 is emitted toward the half mirror 180.

The first plane mirror 160 and the second plane mirror 170 are composed of a flat plate-shaped base material made of synthetic resin or glass, and a metal reflection film formed on the surface of the base material. The first plane mirror 160 is arranged so as to guide the display light L1 to the first screen 140. The second plane mirror 170 is arranged so as to guide the display light N1 emitted from the first screen 140 to the half mirror 180. That is, the first plane mirror 160 is arranged so as to reflect the display light L1 emitted from the first display device 120 toward the first screen 140, and the second plane mirror 170 is arranged from the first screen 140. The display light N1 that has entered is arranged so as to be reflected toward the half mirror 180.

The half mirror 180 is composed of organic glass such as acrylic and a metal reflection film formed on the surface of the organic glass. In the present embodiment, half mirror 180 is arranged so as to transmit display light N2 to concave mirror 190 and reflect display light N1 to concave mirror 190.

The concave mirror 190 reflects the two incident display lights N1 and N2 toward the windshield 310. The concave mirror 190 is composed of a base material made of synthetic resin, glass or the like, and a metal reflection film formed on the surface of the base material. The concave mirror 190, the first plane mirror 160 and the second plane mirror 170, and the half mirror 180 constitute an optical system that guides the display lights N1 and N2 to the windshield 310. The display light that has entered the windshield 310 is reflected toward the eye box of the driver E. Accordingly, the driver E can visually recognize the virtual image on the other side of the windshield 310.

As shown in FIG. 3, the vehicle 300 in which the HUD device 100 is mounted detects a vehicle speed and transmits a signal indicating the detection result to the control unit 200, a vehicle speed detection unit 320, and a car navigation device 400 (hereinafter , Car navigation 400). These devices are configured to be communicable with the HUD device 100, and the HUD device 100 displays virtual images V1 and V2 indicating various information regarding the vehicle based on various signals transmitted from these devices. The virtual image V1 is displayed on a surface (first display area) orthogonal to the direction of the line of sight of the driver E when viewed from the driver E. The virtual image V2 is displayed on the horizontal plane (second display area) as viewed from the driver E so as to be along the road surface. That is, the two virtual images V1 and V2 are displayed so as to intersect with each other, overlap each other when viewed from the driver E, and have different distances viewed from the driver E.

The car navigation system 400 includes a GPS acquisition unit that acquires a GPS (Global Positioning System) signal and a map data storage unit that stores map data. The car navigation 400 specifies the current position of the vehicle 300 based on the GPS signal transmitted from the GPS satellite, and transmits navigation information for guiding the driver E the route from the current position to the destination to the control unit 200. The navigation information is information such as going straight, turning left, turning right at the next intersection.

The control unit 200 includes a CPU (Central Processing Unit) and a storage unit, executes a control program stored in the storage unit based on various signals transmitted from the vehicle speed detection unit 320 and the car navigation 400, and The image signal is output to the first display unit 120 and the second display unit 130. Specifically, the control unit 200 outputs an image signal indicating the first image including the speed information to the first display device 120, and indicates the second image including the navigation information on the second display device 130. Output an image signal. When the control unit 200 acquires information indicating that the second display device 130 is out of order from the determination unit 210 described below, the control unit 200 causes the third image in which the second image is superimposed in addition to the first image. Image is generated, and an image signal indicating the third image is output to the first display 120. Further, when the control unit 200 acquires information indicating that the first display device 120 is out of order from the determination unit 210, the control unit 200 generates a fourth image in which the first image is superimposed in addition to the second image. , And outputs an image signal indicating the fourth image to the second display 130.

The determination unit 210 determines whether or not the first display device 120 and the second display device 130 each have a failure. Specifically, the determination unit 210 determines whether or not the current or voltage flowing through the light emitting elements 121 and 131 is equal to or more than the lower limit value and less than the upper limit value (hereinafter, referred to as within the reference value), and additionally displays. It is determined whether or not the voltage of the elements 122 and 132 is within the reference value or whether or not the state detection signal of the display element 122 is normal, and it is determined whether or not there is a failure. When it is determined that only the first display device 120 has failed, the determination unit 210 outputs information indicating that the first display device 120 has failed to the control unit 200. When it is determined that only the second display device 130 is out of order, the determination unit 210 outputs information indicating that the second display unit 130 is out of order to the control unit 200. When it is determined that the first display device 120 and the second display device 130 are out of order, the determination unit 210 controls information indicating that the first display device 120 and the second display device 130 are out of order. It is output to the section 200 and the driver E is informed of the failure by voice or an indicator lamp.

Next, the display processing of the HUD device 100 will be described with reference to the flowchart of FIG. 4 and FIGS. 5 to 7 in order to facilitate understanding of the present embodiment.

When driver E switches the ignition of vehicle 300 from off to on, control unit 200 starts the display process.

When the control unit 200 starts the display process, it acquires vehicle speed information from the vehicle speed detection unit 320, and acquires navigation information that guides the driver E from the current position to the destination from the car navigation 400 (step). S11).

Next, the control unit 200 outputs an image signal based on the acquired information to the first display device 120 and the second display device 130 (step S12). Specifically, an image signal showing the first image based on the speed information is output to the first display device 120, and an image signal showing the second image based on the navigation information is output to the second display device 130. ..

Next, the 1st indicator 120 and the 2nd indicator 130 radiate|emits the display light L1 and L2 based on the image signal output from the control part 200 (step S13). The display lights L1 and L2 are guided to the windshield 310 as the display lights N1 and N2, and the display lights N1 and N2 incident on the windshield 310 are reflected toward the eye box of the driver E. As a result, the driver E can visually recognize the virtual images V1 and V2 on the other side of the windshield 310, as shown in FIG. The display light L1 (N1) emitted from the first display device 120 is reflected by the windshield 310, so that the driver E visually recognizes the virtual image V1 indicating the speed on a plane orthogonal to the line-of-sight direction. The display light L2 (N2) emitted from the second display 130 is reflected by the windshield 310, so that the driver E visually recognizes the virtual image V2 indicating the navigation information on the surface along the road surface.

Returning to FIG. 4, the determination unit 210 measures the current or voltage flowing through the light emitting elements 121 and 131, respectively, and additionally measures the voltage flowing through the display elements 122 and 132, or receives a state detection signal (step S14). ..

Next, the determination unit 210 determines whether or not the current or voltage flowing through the light emitting element 121 of the first display device 120 is within the reference value, and whether the voltage of the display element 122 is within the reference value. It is determined whether or not the state detection signal of the display element 122 is normal (hereinafter, referred to as whether or not the light emitting element 121 and the display element 122 are within their respective reference values: step S15). If each of the light emitting element 121 and the display element 122 is within the reference value (step S15; Yes), it is determined that the first display 120 is not out of order. Next, the determination unit 210 determines whether or not the current or voltage flowing through the light emitting element 131 of the second display device 130 is within the reference value, and whether the voltage of the display element 132 is within the reference value. Alternatively, it is determined whether or not the state detection signal of the display element 132 is normal (hereinafter referred to as whether or not the light emitting element 131 and the display element 132 are within their respective reference values: step S16). If each of the light emitting element 131 and the display element 132 is within the reference value (step S16; Yes), it is determined that the second display 130 is not in failure.

Next, control unit 200 determines whether the ignition of vehicle 300 is off (step S17). If the ignition is not turned off, the process returns to step S11 (step S17; No). If the first display device 120 and the second display device 130 have not failed, the control unit 200 repeats the display processing of steps S11 to S17 until the ignition is turned off.

If only the first indicator 120 fails, the light emitting element 121 and/or the display element 122 will not fit within the reference value (step 15; No), and it is determined that the first indicator 120 has failed. Next, the determination unit 210 determines whether the light emitting element 131 and the display element 132 of the second display device 130 are within their respective reference values (step S16'). Since the light emitting element 131 and the display element 132 are within the respective reference values (step S16'; Yes), it is determined that the second display device 130 has not failed.

When it is determined in step S15 that the first display unit is out of order and in step S16′ that the second display unit 130 is not out of order, the determination unit 210 causes the control unit 200 to determine Information indicating that the display device 120 is out of order is output. Next, the control unit 200 converts the characters included in the first image displayed on the first display device 120 into white characters on the second display device 130 and displays the characters on the second display device 130. A third image superimposed on the second image is generated, and an image signal indicating the third image is output.

Next, the second display 130 emits the display light L2 based on the image signal indicating the third image output from the control unit 200 (step S18). As a result, the driver E can visually recognize the virtual image V2 including the speed information and the navigation information, which are shown in white letters, on the other side of the windshield 310, as shown in FIG.

If only the second indicator 130 fails, the light emitting element 121 and/or the display element 122 cannot be within the reference value (step S16; No), and it is determined that the second indicator 130 has failed.

When it is determined in step S16 that the second display device 130 is out of order, the determination unit 210 outputs information indicating that the second display unit 130 is out of order to the control unit 200. .. Next, the control unit 200 converts the second image displayed on the second display unit 130 into a dotted line and generates a fourth image superimposed on the first image displayed on the first display unit 120. Then, the image signal indicating the fourth image is output to the first display 120.

Next, the first display device 120 emits the display light L2 based on the image signal output from the control unit 200 (step S19). As a result, the driver E can visually recognize the virtual image V1 including the character indicating the speed information and the image indicating the navigation information displayed by the dotted line on the other side of the windshield 310, as illustrated in FIG. 7.

When the determination unit 210 determines that the first display device 120 is out of order in step S15 (step S15; No), and determines that the second display device 130 is out of order in step S16′ (step S15). S16′; No), the determination unit 210 outputs information indicating that the first display device 120 and the second display device 130 are out of order to the control unit 200, and informs the driver E that there is a failure. Notification is made by voice or an indicator lamp (step S20). Then, the display process is ended.

When the driver E turns off the ignition, the control unit 200 determines that the ignition is off (step S17; Yes), and ends the display process.

When the first display device 120 fails, the HUD device 100 according to the present embodiment displays the first image to be displayed on the first display device 120 on the second display device 130. Therefore, the driver E can visually recognize in the virtual image V2 an image indicating the planned speed to be displayed on the first display device 120. Further, when the second display 130 fails, the second image to be displayed on the second display 130 is displayed on the first display 120. Therefore, the driver E can visually recognize the image showing the planned navigation information displayed on the second display 130 on the virtual image V1. Therefore, according to the HUD device 100, the vehicle information can be displayed even if the first display device 120 or the second display device 130 fails. Therefore, the driver E can obtain the vehicle information and does not hinder driving.

Further, when the first display device 120 fails, the driver E can visually recognize the character indicating the speed as a blank character, and thus can recognize that the device for displaying the virtual image V1 has failed. When the second display device 130 has failed, the driver E visually recognizes the image indicating the navigation information with a dotted line, and thus can recognize that the device for displaying the virtual image V2 is defective.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications and applications are possible.

In the above-described embodiment, the determination unit 210 determines whether the light emitting elements 121 and 131 and the display elements 122 and 132 are within the respective reference values, and thus the first display unit 120 and the second display unit 130. The case where it is determined whether or not there is a failure has been described. The determination unit 210 is not limited as long as it can determine whether the virtual image V1 and the virtual image V2 are displayed, and the determination unit 210 includes a camera that captures the virtual image V1 and the virtual image V2, and an image captured by the camera. It may be configured by a determination unit that compares the image output from the control unit 200 and determines whether the virtual image V1 or the virtual image V2 is displayed. Further, the determination unit 210 may be built in the first display device 120 and the second display device 130, and may output a signal indicating a failure to the control unit 200 when a failure occurs. Further, the determination unit 210 may be built in the control unit 200. In addition, the determination unit 210 measures the intensity (luminance) of the light emitted from the first display device 120 and the second display device 130 with an optical sensor and determines whether the luminance is equal to or higher than a reference value. By making a determination, it may be determined whether or not there is a failure.

In the above-described embodiment, the virtual image V2 is displayed on the surface along the road surface as viewed from the driver E, and therefore, as shown in FIG. It looks small. On the other hand, if the first display device 120 fails and the image displayed on the virtual image V2 by the HUD device 100 is displayed on the virtual image V1, a plane orthogonal to the line-of-sight direction seen from the driver E. Since the image showing the navigation information is displayed in FIG. 7, the tip of the arrow looks larger as compared with the case shown in FIG. 5, as shown in FIG. The HUD device 100 may correct the image displayed on the virtual image V2 and display it on the virtual image V1 so that the image displayed on the virtual image V2 has the same shape when displayed on the virtual image V1. Specifically, as shown in FIG. 8, correction is performed to reduce the upper part of the image as compared to the lower part when viewed from the driver E (so that the tip of the arrow becomes smaller than the root), and the navigation information is displayed on the virtual image V1. You may display as an image which shows. Similarly, the HUD device 100 sees the image displayed as the virtual image V1 from the driver E so that the image displayed on the virtual image V1 looks like the same shape when displayed on the virtual image V2. It may be displayed as a virtual image V2 by performing a correction that enlarges it compared to.

In the above-described embodiment, the example in which the character indicating the speed is displayed as a blank character as shown in FIG. 6 when the first display device 120 fails is described, but the driver E displays the virtual image V1. The display device is not limited to this example as long as it can be displayed so that it can be recognized that the device for display has failed. For example, as shown in FIG. 9, the icon IC1 may be displayed at the upper right. The icon IC1 serves as a mark indicating that the first display 120, which displays the virtual image V1 displayed on the plane orthogonal to the line-of-sight direction, is out of order. By displaying the icon IC1, the driver E can recognize that the device for displaying the virtual image V1 is out of order. At this time, the character indicating the speed may be displayed as a normal character instead of the blank character. Alternatively, the character indicating the speed may be displayed in a blinking manner to notify the driver E that the device for displaying the virtual image V1 is out of order.

Further, as shown in FIG. 10, the icon IC2 is displayed in the upper right corner so that the driver E can recognize that the device for displaying the virtual image V2 is out of order when the second display device 130 is out of order. It may be displayed. The icon IC2 indicates that the second display 130, which displays the virtual image V2 displayed on the surface along the road surface, is out of order. By displaying the icon IC2, the driver E can recognize that the device for displaying the virtual image V2 is out of order. At this time, the image showing the navigation information may be displayed by a solid line. Alternatively, the image indicating the navigation information may be displayed in a blinking manner to notify the driver E that the device for displaying the virtual image V1 is out of order.

In the above-described embodiment, when the first display device 120 fails (when the driver E cannot visually recognize the virtual image V1), the image (virtual image V1) scheduled to be displayed on the first display device 120 is changed to the second image. When the second display 130 is displayed by the display 130 and the second display 130 fails (when the driver E cannot visually recognize the virtual image V2), the image (virtual image V2) scheduled to be displayed on the second display 130 is first displayed. The case of displaying with the device 120 has been described. When the operation is not hindered even if the image displayed as the virtual image V2 is not displayed, the HUD device 100 causes the first display 120 to display the image (virtual image V2) even if the second display 130 fails. Instead, the image (virtual image V1) may be displayed on the second display 130 only when the first display 120 fails.

In the above-mentioned embodiment, when displaying the character indicating the speed information displayed on the first display unit 120 on the second display unit 130, the same character is displayed. You may convert and display. When the image showing the navigation information displayed on the second display device 130 is displayed on the first display device 120, the same image (the image of the arrow) is displayed. However, for example, character information such as straight ahead, right turn, left turn, etc. It may be converted into and displayed.

In the above-described embodiment, the HUD device 100 is described as an example including the two displays 120 and 130, but the present invention is not limited to this. For example, the HUD device 100 is provided with one display 520. It may be the HUD device 500. As shown in FIG. 11(A), the HUD device 500 displays a first virtual image V1 in a first display area A1 that is located far from the driver E and extends horizontally along the road surface. The second virtual image V2 is displayed in the second display area A2 which is located closer to the first display area A1 when viewed from the driver E and extends in the direction perpendicular to the line-of-sight direction of the driver E. As shown in FIG. 11B, the HUD device 500 includes a housing 510, a display 520, a fold mirror 530, a first reflecting surface 541 having a flat shape, and a curved second convex reflection surface 541. An image forming position adjusting mirror 540 having a surface 542, a first screen 550, a second screen 560, a plane mirror 570, a concave mirror (reflecting member) 580, a control unit 600, a virtual image V1 and a virtual image V2. And a determination unit 610 including a camera for capturing an image. The plane mirror 570 and the concave mirror (reflecting member) 580 form an optical system.

In this case, the determination unit 610 compares the virtual image V1 and the virtual image V2 captured by the camera with the image output from the control unit 600 to the display 520, and determines whether the virtual image V1 and the virtual image V2 are displayed. To determine. When it is determined that the virtual image V1 is not displayed, the information is output to the control unit. The control unit outputs to the display unit 520 an image signal in which the image to be displayed on the virtual image V1 is superimposed so as to be displayed on the virtual image V2. Further, when the determination unit 610 determines that the virtual image V2 is not displayed, the determination unit 610 outputs the information to the control unit. The control unit outputs to the display device 620 an image signal in which the image to be displayed on the virtual image V2 is superimposed so as to be displayed on the virtual image V1.

In the above-described embodiment, the case where the virtual image V1 is displayed on the surface orthogonal to the line-of-sight direction when viewed from the driver E, and the virtual image V2 is displayed on the surface along the road surface when viewed from the driver E. However, the virtual image V1 and the virtual image V2 may be displayed at any position viewed from the driver. For example, the virtual image V1 may be displayed on a surface along the road surface viewed from the driver E, and the virtual image V2 may be displayed on a surface orthogonal to the line-of-sight direction viewed from the driver E.

The present invention allows various embodiments and modifications without departing from the broad spirit and scope of the present invention. Further, the above-described embodiments are for explaining the present invention and do not limit the scope of the present invention. That is, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications made within the scope of the claims and the scope of the invention equivalent thereto are considered to be within the scope of the present invention.

The present invention can be applied to a head-up display device used in a vehicle.

100 Head-up display device (HUD device)
110 Housing 120 First Display 121 Light Emitting Element 122 Display Element 130 Second Display 131 Light Emitting Element 132 Display Element 140 First Screen 150 Second Screen 160 First Flat Mirror 170 Second Flat Mirror 180 Half Mirror 190 concave mirror 200 control unit 210 determination unit 300 vehicle 310 windshield 320 vehicle speed detection unit 400 car navigation device (car navigation)
500 HUD device 510 Housing 520 Display 530 Fold mirror 540 Imaging position adjusting mirror 541 First reflection surface 542 Second reflection surface 550 First screen 560 Second screen 580 Concave mirror 600 Control unit 610 Discrimination unit V1, V2 Virtual image IC1, IC2 Icon L, L1, L2, N1, N2 Display light E Driver

Claims (10)

A control unit that outputs image information indicating the first image and the second image based on the vehicle information;
A display that emits display light indicating the first image and the second image indicated by the image information output by the controller,
An optical system for displaying a first virtual image corresponding to the first image and a second virtual image corresponding to the second image by guiding the display light emitted from the display to a projection member;
A discriminating section for discriminating whether or not the first virtual image is displayed;
Equipped with
When the determination unit determines that the first virtual image is not displayed, the determination unit outputs information indicating that the first virtual image is not displayed to the control unit,
An image in which the information included in the first image is included in the second image in response to the information indicating that the first virtual image is not displayed, which is output from the determination unit. Output to the display as information,
A head-up display device characterized by the above. The first virtual image is displayed in the first display area,
The second virtual image is displayed in the second display area at a position different from the distance from the viewer to the first display area,
The head-up display device according to claim 1, wherein the head-up display device is a display device. The first virtual image is displayed in the first display area,
The second virtual image is displayed in a second display area that intersects with the first display area,
The head-up display device according to claim 1, wherein the head-up display device is a display device. The control unit responds to the information indicating that the first image is not displayed, which is output from the determination unit, and displays the information represented in a different mode from the case where the first image is displayed in the first image. Output to the display device as image information indicating the third image included in the second image,
The head-up display device according to claim 1, wherein the head-up display device is a display device. When the viewer visually recognizes the first image as a virtual image when outputting the information included in the first image to the display device as image information including the second image. The shape of the first image is corrected so that it looks the same as the shape of, and is output to the display as image information included in the second image.
The head-up display device according to claim 1, wherein the head-up display device is a head-up display device. In response to the information indicating that the first image is not displayed, which is output from the determining unit, the control unit displays an icon indicating that the first image is not displayed on the second image. Output to the display as image information showing the added image,
The head-up display device according to claim 1, wherein the head-up display device is a display device. The indicator comprises a first indicator and a second indicator,
The first display emits a first display light indicating the first image,
The second display emits a second display light indicating the second image,
The head-up display device according to claim 1, wherein the head-up display device is a display device. The display comprises one display,
The display emits a first display light showing the first image and a second display light showing the second image,
The head-up display device according to claim 1, wherein the head-up display device is a display device. An image display step of displaying a first virtual image corresponding to the first image and a second virtual image corresponding to the second image by emitting display light indicating the first image and the second image. ,
A determining step of determining whether or not the first virtual image is displayed;
Equipped with
If it is determined in the determining step that the first virtual image is not displayed, the image displaying step indicates a third image in which the information included in the first image is included in the second image. Emitting display light, and displaying a third virtual image corresponding to the third image from the display light,
A display method for displaying a virtual image on a head-up display device characterized by the above. A display that emits display light showing the first image and the second image;
An optical system for displaying a first virtual image corresponding to the first image and a second virtual image corresponding to the second image from the display light;
A computer for controlling a head-up display device including
Determination means for determining whether or not the first virtual image is displayed,
Control means for controlling the display,
Function as
When the determination unit determines that the first virtual image is not displayed, the control unit displays the third image in which the information included in the first image is included in the second image. Causing the display to emit toward the optical system as light,
A program characterized by that.

Images