# US 12,222,510 B2 · Head-mounted type display device and method of controlling head-mounted type display device

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- Number: US 12,222,510 B2
- Document ID: US12222510B2
- Status: Granted
- Kind: B2
- Application number: 18/137,531
- Filed: 2023-04-21
- Published: 2023-08-10
- Granted: 2025-02-11
- Earliest claimed: 2017-12-14
- Assignees: Seiko Epson Corporation
- Applicants: Seiko Epson Corporation
- Inventors: Takashi Tomizawa; Fumiya Hori; Yuichi Kakizaki
- Web page: https://patentgrep.com/patent/US12222510B2

## CPC

- G02B 27/0172: {characterised by optical features}
- G02B 27/0179: {Display position adjusting means not related to the information to be displayed}
- G06F 3/011: {Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00)}
- G06F 3/04815: Interaction with a metaphor-based environment or interaction object displayed as three-dimensional [3D], e.g. changing the user viewpoint with respect to the environment or object
- G06T 19/006: {Mixed reality (object pose determination, tracking or camera calibration for mixed reality G06T7/00)}
- G02B 2027/0134: {of stereoscopic type}
- G02B 2027/0138: {comprising image capture systems, e.g. camera}
- G02B 2027/014: {comprising information/image processing systems}
- G02B 2027/0178: {Eyeglass type (eyeglass details G02C)}
- G02B 2027/0185: {Displaying image at variable distance}
- 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)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL

## Abstract

An HMD includes an image display unit configured to display objects in a display region (VR) overlapping with outside scenery; a storage unit configured to store a process flow data to be used for selecting the objects to be displayed in the display region (VR); and a control unit configured to select any of the objects to be displayed in the display region (VR), based on the selection information, and to control display positions of the objects in a depth direction of the display region (VR) so that a display position of a selected object is different from a display position of another object to be displayed in the display region (VR).

## Claims

### Claim 1

A head-mounted type display device mounted on a head of user, the head mounted display device comprising:
a display that has an emitting region displaying a character string; and
a processor that detects a first character that is a character to be displayed in an emphasized manner from the character string based on setting information, wherein
the character string includes a second character that is not a character to be displayed in an emphasized manner based on the setting information,
the processor causes the display to adjust a display position of the first character within the emitting region such that a convergence angle of the first character is smaller than a convergence angle of the second character.

### Claim 2 (depends on 1)

The head-mounted type display device according to claim 1, wherein
the processor causes the display to change the display position of the first character within the emitting region such that the convergence angle of the first character is same as the convergence angle of the second character, after a certain time.

### Claim 3 (depends on 1)

The head-mounted type display device according to claim 1, wherein
the processor causes the display to change the display position of the first character within the emitting region such that the convergence angle of the first character is larger than the convergence angle of the second character, after a certain time.

### Claim 4 (depends on 1)

The head-mounted type display device according to claim 1, wherein
the processor causes the display to display such that a size of one end of the first character is different from a size of another end of the first character.

### Claim 5 (depends on 1)

The head-mounted type display device according to claim 1, wherein
the processor causes the display to display the first character such that a size of the first character is different from a size of the second character.

### Claim 6 (depends on 1)

The head-mounted type display device according to claim 1, wherein
the processor causes the display to display the first character such that a boldness of the first character is different from a boldness of the second character.

### Claim 7 (depends on 6)

The head-mounted type display device according to claim 6, wherein
the processor causes the display to display the first character such that the boldness of the first character is thicker than the boldness of the second character.

### Claim 8 (depends on 1)

The head-mounted type display device according to claim 1, wherein
the processor causes the display to display such that a background color of the first character is different from a background color of the second character.