Display device and control method for display device

• US 10,455,157 B2
• Filed: 02/13/2018
• Issued: 10/22/2019
• Est. Priority Date: 02/27/2017
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Ozawa, Emi, Kobayashi, Shinichi, Takano, Masahide
• Primary Examiner(s): Brown, Jr., Howard D
• Application Number:
  US15/895,455
• Publication Number:
  US 20180249086A1
• Time in Patent Office: 616 Days
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/0138 comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 2027/0187 slaved to motion of at least a part of the body of the user, e.g. head, eye
• CPC Class Codes: G02B 27/017 Head mounted
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G05D 1/0016 characterised by the operator's input device input arrangements for computing systems in general G06F3/00
• CPC Class Codes: G05D 1/0038 by providing the operator with simple or augmented images from one or more cameras located onboard the vehicle, e.g. tele-operation images analyzed by a computer and used for automatic navigation G05D1/0246
• CPC Class Codes: G05D 1/102 specially adapted for vertical take-off of aircraft
• CPC Class Codes: G06F 3/00 Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
• CPC Class Codes: G06F 3/147 using display panels
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 3/002 to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT
• CPC Class Codes: G09G 5/14 Display of multiple viewports
• CPC Class Codes: H04N 13/239 using two 2D image sensors having a relative position equal to or related to the interocular distance H04N13/243 takes precedence
• CPC Class Codes: H04N 13/243 using three or more 2D image sensors
• CPC Class Codes: H04N 13/344 with head-mounted left-right displays
• CPC Class Codes: H04N 23/60 Control of cameras or camera modules
• CPC Class Codes: H04N 23/63 by using electronic viewfinders
• CPC Class Codes: H04N 5/445 : for displaying additional information H04N5/50 takes precedence
• CPC Class Codes: H04N 5/45 : Picture in picture , e.g. displaying simultaneously another television channel in a region of the screen
• CPC Class Codes: H04N 7/185 : from a mobile camera, e.g. for remote control

Abstract

An HMD includes an image display section configured to display an image to enable visual recognition of an outside scene by transmitting external light, a mobile-body-position acquiring section configured to acquire a position of a mobile machine, an operation detecting section configured to detect operation, and a display control section configured to cause the image display section to display the image. The display control section executes visibility control processing for controlling, on the basis of the position of the mobile machine acquired by the mobile-body-position acquiring section and the operation detected by the operation detecting section, visibility of the image displayed by the image display section with respect to the external light transmitted through the image display section.

Claims

1. A display device comprising:

a display section configured to display an image to enable visual recognition of an outside scene by transmitting external light;

a mobile-body-position acquiring section configured to acquire a position of a mobile body;

an operation detecting section configured to detect operation; and

a display control section configured to cause the display section to display the image, wherein

the display control section executes visibility control processing for controlling, on the basis of the position of the mobile body acquired by the mobile-body-position acquiring section and the operation detected by the operation detecting section, visibility of the image displayed by the display section with respect to the external light transmitted through the display section.

2. The display device according to claim 1, further comprising an image acquiring section configured to acquire image data concerning a captured image captured by the mobile body, wherein

the display control section causes the display section to display an image based on the image data acquired by the image acquiring section.

3. The display device according to claim 2, wherein

the image acquiring section acquires a plurality of the image data concerning respective captured images captured by a plurality of the mobile bodies, and

the display control section causes the display section to display a plurality of the images based on the plurality of image data acquired by the image acquiring section and controls visibilities of the plurality of images with the visibility control processing.

4. The display device according to claim 3, wherein the display control section executes the visibility control processing to reduce differences among the visibilities of the plurality of images displayed by the display section on the basis of the plurality of image data acquired by the image acquiring section.

5. The display device according to claim 4, wherein the display control section executes the visibility control processing to set visibilities of a part of the images higher than visibilities of the other images among the plurality of images displayed by the display section on the basis of the plurality of image data acquired by the image acquiring section.

6. The display device according to claim 1, wherein

the mobile-body-position acquiring section acquires a visual recognition position where the mobile body in a real space is visually recognized through the display section, and

the display control section executes the visibility control processing according to the visual recognition position of the mobile body acquired by the mobile-body-position acquiring section.

7. The display device according to claim 6, wherein the display control section causes the display section to display an image associated with the mobile body in a position corresponding to the visual recognition position of the mobile body.

8. The display device according to claim 1, wherein the mobile-body-position acquiring section acquires a relative position of the mobile body with respect to the display section.

9. The display device according to claim 1, wherein the display control section causes the display section to display information indicating the position of the mobile body acquired by the mobile-body-position acquiring section.

10. The display device according to claim 1, wherein the display control section causes the display section to display the image on the basis of image data, is capable of executing at least any one of luminance adjustment, color tone adjustment, and gamma correction for the image data, and changes at least anyone of luminance, a color tone, and a gamma correction value of the image data in the visibility control processing.

11. The display device according to claim 1, wherein the display control section executes the visibility control processing to thereby switch, according to the operation detected by the operation detecting section, a first mode for setting visibility of the outside scene visually recognized through the display section higher than visibility of the image displayed by the display section and a second mode for increasing the visibility of the image displayed by the display section with respect to the external light transmitted through the display section.

12. The display device according to claim 1, further comprising an external-light detecting section configured to detect the external light, wherein

the display control section executes the visibility control processing according to the external light detected by the external-light detecting section.

13. The display device according to claim 1, wherein the display device is a head-mounted display device including the display section worn on a head of a user.

14. A control method for a display device including a display section configured to display an image to enable visual recognition of an outside scene by transmitting external light, the control method comprising:

acquiring a position of a mobile body;

detecting operation; and

causing the display section to display an image and executing visibility control processing for controlling, on the basis of the position of the mobile body and the operation, visibility of the image displayed by the display section with respect to the external light transmitted through the display section.