Display device, display control method, and storage medium

Patent metadata

Field	Value
Publication number	US-11294176-B2
Application number	US-201916529850-A
Country	US
Kind code	B2
Filing date	Aug 2, 2019
Priority date	Aug 7, 2018
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A display device includes a light projector configured to project light including an image, an optical mechanism provided on a path of the light and capable of adjusting a distance from a predetermined position to a position where the light is formed as a virtual image, a concave mirror configured to reflect light passing through the optical mechanism toward a reflector, a first actuator configured to adjust the distance in the optical mechanism, and a controller configured to control the light projector and the first actuator. The controller causes the first actuator to change the distance and causes the light projector to project light including an opening image, at a time of an operation start of the display device.

First claim

What is claimed is:

1. A display device comprising:
a light projector configured to project light including an image;
an optical mechanism provided on a path of the light and capable of adjusting a distance from a predetermined position to a position where the light is formed as a virtual image;
a concave mirror configured to reflect light passing through the optical mechanism toward a reflector;
a first actuator configured to adjust the distance in the optical mechanism; and
a controller configured to control the light projector and the first actuator,
wherein the controller causes the first actuator to change the distance and causes the light projector to project light including an opening image, at a time of an operation start of the display device.

2. The display device according to claim 1 ,
wherein the controller causes the first actuator to change the distance from a shortest distance to a longest distance and then change the distance from the longest distance to the shortest distance at the time of the operation start of the display device.

3. The display device according to claim 2 ,
wherein the controller causes the light projector to project the light including the opening image while the distance is changed from the longest distance to the shortest distance at the time of the operation start of the display device.

4. The display device according to claim 2 ,
wherein the controller does not cause the light projector to project the light while the distance is changed from the shortest distance to the longest distance at the time of the operation start of the display device.

5. The display device according to claim 2 ,
wherein the display device is mounted on a vehicle, and
wherein, in a case in which an unlocking of the door of the vehicle or an opening of the door is detected, the controller changes the distance from the shortest distance to the longest distance, and in a case in which a closing of the door of the vehicle or a start of a drive device is detected, the controller changes the distance from the longest distance to the shortest distance.

6. The display device according to claim 1 , further comprising:
a second actuator configured to adjust a reflection angle of the concave mirror; and
a reception unit configured to receive an instruction to adjust the reflection angle by a user,
wherein the opening image is an image for prompting the adjustment of the reflection angle of the concave mirror.

7. The display device according to claim 1 ,
wherein the controller causes the light projector to project light including an ending image that is gradually reduced in a state in which the distance is not changed at a time of an operation end of the operation of the display device.

8. The display device according to claim 1 ,
wherein the display device is mounted on a vehicle, and
wherein the controller controls the first actuator so that the distance is reduced as a speed of the vehicle is reduced.

9. A display control method for a display device comprising a light projector configured to project light including an image, an optical mechanism provided on a path of the light and capable of adjusting a distance from a predetermined position to a position where the light is formed as a virtual image, a concave mirror configured to reflect light passing through the optical mechanism toward a reflector, a first actuator configured to adjust the distance in the optical mechanism, and the controller configured to control the light projector and the first actuator, the method causing a controller of the display device to:
cause the first actuator to change the distance at a time of an operation start of the display device: and
cause the light projector to project light including an opening image at the time of the operation start of the display device.

10. A non-transitory computer-readable storage medium that stores a program for a display device comprising a light projector configured to project light including an image, an optical mechanism provided on a path of the light and capable of adjusting a distance from a predetermined position to a position where the light is formed as a virtual image, a concave mirror configured to reflect light passing through the optical mechanism toward a reflector, a first actuator configured to adjust the distance in the optical mechanism, and the controller configured to control the light projector and the first actuator, the program causing a controller of the display device to:
cause the first actuator to change the distance at a time of an operation start of the display device: and
cause the light projector to project light including an opening image at the time of the operation start of the display device.

Assignees

• Honda Motor Co Ltd

Inventors

• Higashiyama Masafumi
• Kimura Takuya
• Kawakami Shinji
• Iwasa Tatsuya
• Kuwashima Yuji

Classifications

• B60K35/53

  Movable instruments, e.g. slidable · CPC title

• B60K35/81

  for controlling displays · CPC title

• B60K35/23

  Head-up displays [HUD] (optical aspects of head-up displays G02B27/01) · CPC title

• G02B27/0101 Primary

  characterised by optical features (G02B27/0172 takes precedence) · CPC title

• G02B5/0808

  having a single reflecting layer (G02B5/0883, G02B5/0891 take precedence) · CPC title