# US 12,007,567 B2 · Display device

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- Number: US 12,007,567 B2
- Document ID: US12007567B2
- Status: Granted
- Kind: B2
- Application number: 17/775,926
- Filed: 2022-05-11
- Published: 2022-12-08
- Granted: 2024-06-11
- Earliest claimed: 2019-11-13
- Assignees: Canon Kabushiki Kaisha
- Applicants: Canon Kabushiki Kaisha
- Inventors: Takuya Sakamaki; Tatsuya Hanayama; Atsushi Sugawara; Kaori Tomura; Yosuke Fukai; Yusuke Toriumi
- Web page: https://patentgrep.com/patent/US12007567B2

## CPC

- G02B 27/0172: {characterised by optical features}
- G02B 27/0179: {Display position adjusting means not related to the information to be displayed}
- G03B 15/00: Special procedures for taking photographs; Apparatus therefor
- G06F 3/012: {Head tracking input arrangements}
- G06F 3/013: {Eye tracking input arrangements (G06F3/015 takes precedence)}
- H04N 23/60: Control of cameras or camera modules
- H04N 23/695: Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
- G02B 2027/0138: {comprising image capture systems, e.g. camera}
- 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
- G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A display device configured to be used in a state of being fixed to a head of a user, includes: a camera; a display configured to display a part of an image captured by the camera as a display range; an orientation detection sensor configured to detect an orientation of the display device; a line-of-sight detection sensor configured to detect a line-of-sight of the user to the display; and a processor configured not to control a position of the display range based on the line-of-sight detected by the line-of-sight detection sensor in a case where a change amount of the orientation detected by the orientation detection sensor is smaller than a predetermined amount, and to control the position of the display range based on the line-of-sight in a case where the change amount of the orientation is larger than the predetermined amount.

## Claims

### Claim 1

A display device configured to be used in a state of being fixed to a head of a user, comprising:
a camera;
a display configured to display a part of an image captured by the camera as a display range;
an orientation detection sensor configured to detect an orientation of the display device;
a line-of-sight detection sensor configured to detect a line-of-sight of the user to the display; and
a processor configured not to control a position of the display range based on the line-of-sight detected by the line-of-sight detection sensor in a case where a change amount of the orientation detected by the orientation detection sensor is smaller than a predetermined amount, and to control the position of the display range based on the line-of-sight in a case where the change amount of the orientation is larger than the predetermined amount.

### Claim 2 (depends on 1)

The display device according to claim 1, wherein
in a case where the change amount of the orientation is larger than the predetermined amount, if the line-of-sight changes in an opposite direction of a change direction of the orientation, the processor controls the position of the display range such that a change of a display direction caused by a change of the orientation decreases.

### Claim 3 (depends on 1)

The display device according to claim 1, wherein
in a case where the change amount of the orientation is larger than the predetermined amount, if the line-of-sight changed in a same direction as a change direction of the orientation, the processor controls the position of the display range such that a change of a display direction caused by a change of the orientation increases.

### Claim 4 (depends on 1)

The display device according to claim 1, wherein
in a case where the change amount of the orientation is larger than the predetermined amount, the processor controls the position of the display range such that a display direction matches with a direction of the line-of-sight.

### Claim 5 (depends on 1)

The display device according to claim 1, wherein
a focal distance of the camera is changeable, and
in a case where the focal distance is shorter than a predetermined distance, the processor does not control the position of the display range based on a detection result by the orientation detection sensor and a detection result by the line-of-sight detection sensor.

### Claim 6 (depends on 1)

The display device according to claim 1, wherein
the camera additionally detects an object distance, and
the processor additionally controls the position of the display range based on the detected object distance.

### Claim 7 (depends on 1)

The display device according to claim 1, wherein
the processor additionally controls the position of the display range based on a shaking of the display device.

### Claim 8 (depends on 1)

The display device according to claim 1, wherein
the display range is moveable in a pan direction and a tilt direction independently.

### Claim 9 (depends on 8)

The display device according to claim 8, wherein
a control method for moving the display range in the pan direction is different from a control method for moving the display range in the tilt direction.

### Claim 10 (depends on 1)

The display device according to claim 1, wherein
the display device is a display device which is used while the user fixes the display device to the head of the user, or a display device which is wearable on the head of the user.

### Claim 11

A control method of a display device including a camera and a display configured to display a part of an image captured by the camera as a display range, the display device being configured to be used in a state of being fixed to a head of a user, the control method comprising:
an orientation detection step of detecting an orientation of the display device;
a line-of-sight detection step of detecting a line-of-sight of the user to the display; and
a control step of not controlling a position of the display range based on the line-of-sight detected in the line-of-sight detection step in a case where a change amount of the orientation detected in the orientation detection step is smaller than a predetermined amount, and controlling the position of the display range based on the line-of-sight in a case where the change amount of the orientation is larger than the predetermined amount.

### Claim 12

A non-transitory computer readable storage medium that stores a program, wherein the program causes a computer to execute a control method of a display device including a camera and a display configured to display a part of an image captured by the camera as a display range, the display device being configured to be used in a state of being fixed to a head of a user, the control method comprising:
an orientation detection step of detecting an orientation of the display device;
a line-of-sight detection step of detecting a line-of-sight of the user to the display; and
a control step of not controlling a position of the display range based on the line-of-sight detected in the line-of-sight detection step in a case where a change amount of the orientation detected in the orientation detection step is smaller than a predetermined amount, and controlling the position of the display range based on the line-of-sight in a case where the change amount of the orientation is larger than the predetermined amount.