Display, control method of display, and program

Patent metadata

Field	Value
Publication number	US-10162412-B2
Application number	US-201615049203-A
Country	US
Kind code	B2
Filing date	Feb 22, 2016
Priority date	Mar 27, 2015
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

A HMD is provided with a virtual image display including a first display and a second display that display images respectively corresponding to a right eye and a left eye of a user such that an outside scene is visible. The HMD is provided with a control device that controls a display mode of the image by the virtual image display according to a gaze distance of the user.

First claim

What is claimed is:

1. A display comprising:
a first image display and a second image display that each display an image respectively corresponding to a right eye and a left eye of a user such that an outside scene is visible; and
a control unit including a processor and a memory, the control unit, when executed by the processor, being configured to:
control a display mode of the image by each of the first image display and the second image display according to a gaze distance of the user, and
adjust the display mode of the image according to a dominant eye of the user,

wherein the display mode of the image includes: (i) a first display mode for a dominant eye, and in the first display mode, the image is displayed in a position shifted by a number of pixels from a reference position, on the first image display; and (ii) a second display mode for a non-dominant eye, and in the second display mode, the image is displayed in a position shifted by a different number of pixels from the reference position, on the second image display.

2. The display according to claim 1 ,
wherein the control unit, when executed by the processor, is configured to change a display position of the image and/or a display size of the image, by the first image display and the second image display, according to the gaze distance of the user.

3. The display according to claim 1 ,
wherein the control unit, when executed by the processor, is configured to control the display mode of the image displayed by the first image display and the second image display, based on a convergence angle between both eyes corresponding to the gaze distance of the user.

4. The display according to claim 3 ,
wherein the control unit, when executed by the processor, is configured to obtain the convergence angle between both eyes of the user, and varies a position where the user views the image displayed on the first image display and the second image display, according to the obtained convergence angle.

5. The display according to claim 4 ,
wherein the control unit, when executed by the processor, is configured to shift a display position displayed by the first image display and the second image display, from a standard position that is set in advance, according to the convergence angle between both eyes of the user.

6. The display according to claim 3 , wherein the convergence angle is initially set in a range that is greater than or equal to 1° and less than or equal to 5° in an initial state in which the control unit does not control the display mode.

7. The display according to claim 1 , further comprising:
a plurality of state detecting cameras that detect a state of both eyes of the user,
wherein the control unit, when executed by the processor, is configured to calculate the gaze distance of the user, based on a detection result of the state detecting cameras, and controls the display mode of the image by the first image display and the second image display, according to the calculated gaze distance.

8. The display according to claim 7 ,
wherein the state detecting cameras includes an inner camera that are respectively provided corresponding to a right eye and a left eye of the user, and
wherein the control unit, when executed by the processor, is configured to calculate the gaze distance of the user, by obtaining at least one of a pupillary distance, a pupil diameter, and a gaze time in a gaze direction of the right eye and the left eye the user, based on a captured image of the inner camera.

9. The display according to claim 7 ,
wherein:
the state detecting cameras include an outer camera that captures a gaze direction of the right eye and left eye of the user, and
the control unit, when executed by the processor, is configured to calculate the gaze distance of the user, by obtaining the gaze direction of the right eye and left eye of the user, based on the captured image of the outer camera.

10. The display according to claim 1 ,
wherein the first image display and the second image display each include:
an emitting image display that emits an image light;
an optical system including a light guide, that guides the image light which is emitted by the emitting image display to each of the right eye and the left eye of the user; and
a change unit including an actuator, that displaces a portion of members constituting the emitting image display or the optical system, and changes an angle of the image light that is incident from the optical system to the right eye and the left eye of the user; and

wherein the control unit, when executed by the processor, is configured to operate the change unit according to the gaze distance of the user.

11. The display according to claim 1 ,
wherein the control unit, when executed by the processor, is configured to control a position of the image, in a display range in which the user views the image displayed on the first image display and the second image display, according to the gaze distance of the user.

12. The display according to claim 11 , comprising:
an image generator including a signal and image processing data that generates an image displayed on the first image display and the second image display based on the image data,
wherein the control unit, when executed by the processor, is configured to generate the image for adjustment by cutting out a part of the image data by the image generator, according to the gaze distance of the user, and displays the image for adjustment on the first image display and the second image display.

13. The display according to claim 1 ,
wherein the control unit, when executed by the processor, is configured to cause the first image display and the second image display each to display the image corresponding to either the right eye or the left eye of the user, when the gaze distance of the user is closer than a reference distance that is set in advance.

14. The display according to claim 1 , further comprising:
an external imaging camera,
wherein the control unit, when executed by the processor, is configured to execute a process of displaying the image based on a captured image of the external imaging camera on the first image display and the second image display.

15. The display according to claim 14 ,
wherein the first image display and the second image display are configured such that the user can view an outside scene by external light passing through the first image display and the second image display, and visibly displays the image based on the captured image of the external imaging camera and the outside scene at the same time.

16. The display according to claim 14 ,
wherein the control unit, when executed by the processor is configured to execute a process of improving the visibility of the image based on the captured image, as compared to external light passing through the first image display and the second image display, when the image based on the captured image is displayed on the first image display and the second image display.

17. The display according to claim 16 ,
wherein the control unit, when executed by the processor is configured to execute a process of improving the visibility of the image based on the captured image, by varying brightness or color of the image based on the captured image, or executing an edge enhancement process on the image based on the captured image, when the image based on the captured image is displayed on the first image display and the second image display.

18. The display according to claim 14 ,
wherein the control unit, when execu

Assignees

• Seiko Epson Corp

Inventors

• Nishizawa Kazuo
• Takano Masahide

Classifications

• G02B2027/0118

  comprising devices for improving the contrast of the display / brillance control visibility · CPC title

• G02B2027/0129

  comprising devices for correcting parallax · CPC title

• G02B2027/0127

  comprising devices increasing the depth of field · CPC title

• G02B2027/0178

  Eyeglass type (eyeglass details G02C) · CPC title

• G06F3/013 Primary

  Eye tracking input arrangements (G06F3/015 takes precedence) · CPC title