# US 2014/0191942 A1 · Display device and control method thereof

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- Number: US 2014/0191942 A1
- Document ID: US20140191942A1
- Status: Published application
- Kind: A1
- Application number: 14/109,568
- Filed: 2013-12-17
- Published: 2014-07-10
- Earliest claimed: 2013-01-07
- Assignees: Seiko Epson Corporation
- Applicants: Seiko Epson Corporation
- Inventors: Shinichi Kobayashi
- Web page: https://patentgrep.com/patent/US20140191942A1

## CPC

- G02B 27/0172: {characterised by optical features}
- G02B 27/017: {Head mounted}
- G06F 3/012: {Head tracking input arrangements}
- G02B 2027/014: {comprising information/image processing systems}
- G02B 2027/0187: {slaved to motion of at least a part of the body of the user, e.g. head, eye}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A head-mounted display device includes: a display section that outputs an image light to overlap with an outside light and causes an image to be viewed; and an input detecting section that detects an input operation in a case where a predetermined light is determined in a range corresponding to the image.

## Claims

### Claim 1

A display device comprising:
a display section that produces, by outputting an image light, a scene viewed by light other than the image light and an image based on the image light to be viewed; and
an operation detecting section that detects an input operation in a case where a predetermined light is determined in a range corresponding to the image.

### Claim 2

A head-mounted display device comprising:
a display section that outputs an image light to overlap with an outside light and causes an image to be viewed; and
an operation detecting section that detects an input operation in a case where a predetermined light is determined in a range corresponding to the image.

### Claim 3 (depends on 1)

The display device according to claim 1, further comprising:
an outside detecting section that detects an outside light corresponding to a visual field of a user of the display device,
wherein the operation detecting section detects the predetermined light from the outside light detected by the outside light detecting section.

### Claim 4 (depends on 1)

The display device according to claim 1,
wherein the operation detecting section detects the input operation in a case where the predetermined light is detected at a position corresponding to an input detection area that is virtually set.

### Claim 5 (depends on 4)

The display device according to claim 4,
wherein a plurality of operation targets is arranged in the input detection area, and
wherein the operation detecting section determines that the operation target corresponding to the position where the predetermined light is detected is operated.

### Claim 6 (depends on 1)

The display device according to claim 1,
wherein the predetermined light is a visible light.

### Claim 7 (depends on 1)

The display device according to claim 1,
wherein the predetermined light includes light with a plurality of wavelength bands.

### Claim 8 (depends on 1)

The display device according to claim 1, further comprising
a display control section that performs a display indicating the input operation detected by the operation detecting section in the image.

### Claim 9 (depends on 1)

The display device according to claim 1,
wherein the display device is a head-mounted display device that causes a user to view the image,
the display section includes:
an image light generating section that generates and emits the image light for display of the image using display image data; and
an optical member that guides the emitted image light to eyes of the user, and
the outside light passes through the optical member and is incident onto the eyes of the user together with the image light.

### Claim 10

A control method of a display device, comprising:
causing, by outputting an image light, a scene viewed by light other than the image light and an image based on the image light to be viewed; and
detecting an input operation in a case where a predetermined light is determined in a range corresponding to the image.

### Claim 11

A control method of a display device that includes a display section that outputs an image light to overlap with an outside light and causes an image to be viewed, and is mounted on a head of a user, the method comprising:
detecting an input operation in a case where a predetermined light is determined in a range corresponding to the image.