Head-mounted display and brightness control method

Patent metadata

Field	Value
Publication number	US-10162185-B2
Application number	US-201515521032-A
Country	US
Kind code	B2
Filing date	Aug 26, 2015
Priority date	Nov 4, 2014
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

In a head-mounted display for presenting a video by shielding an outside world from a field of view of a user when mounted on the user, an information presentation block presents information including audio and a moving image to the field of view of the user; a video reproduction block reproduces a video of content; a camera takes a video of the outside world; a switching block selectively switches between the video of the content and the video of the outside world and causes the selected video to be presented onto the information presentation block; and a gain control block, when the switching block switches from the video of the content to the video of the outside world, gradually increases a brightness of the video of the outside world.

First claim

The invention claimed is:

1. A head-mounted display for presenting a video by shielding an outside world from a field of view of a user when mounted on the user, comprising:
an information presentation block configured to present information including audio and a moving image to the field of view of the user;
a video reproduction block configured to reproduce a video of content;
a camera configured to take a video of the outside world;
a switching block configured to selectively switch between the video of the content and the video of the outside world and cause the selected video to be presented onto the information presentation block; and
a gain control block configured to control a brightness of at least one of the video of the content and the video of the outside world, such that the brightness varies when selectively switching between the video of the content and the video of the outside world.

2. The head-mounted display according to claim 1 , wherein, when the switching block switches from one of the video of the content and the video of the outside world to the other, the gain control block gradually increases the brightness of the video of the other.

3. The head-mounted display according to claim 2 , wherein the gain control block, connected between the camera and the switching block, gradually increases the brightness of the video of the outside world when the switching block switches from the video of the content to the video of the outside world.

4. The head-mounted display according to claim 1 , wherein the gain control block increases a brightness of a video by changing an increase rate of the brightness of the video as time passes.

5. The head-mounted display according to claim 4 , wherein the gain control block increases a brightness of a video by increasingly changing an increase rate of the brightness of the video as time passes.

6. A brightness control method executed by a processor of a head-mounted display for presenting a video by shielding an outside world from a field of view of a user when mounted on the user, the method comprising:
reproducing a video of content;
taking a video of the outside world; and
selectively switching between the video of the content and the video of the outside world based on a command by the user and presenting the selected video to the user;
wherein the presenting includes, when executing switching from one of the video of the content and the video of the outside world to the other, gradually increasing a brightness of the video of the other.

Assignees

• Sony Interactive Entertainment Inc

Inventors

• Usami Morio

Classifications

• H04N23/54

  Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils · CPC title

• H04N23/71

  Circuitry for evaluating the brightness variation · CPC title

• G09G3/001 Primary

  using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background (slide projectors per se G03B23/00 = 42 HP) · CPC title

• G02B27/026 Primary

  and a display device, e.g. CRT, LCD, for adding markings or signs or to enhance the contrast of the viewed object · CPC title

• G02B27/02

  Viewing or reading apparatus (stereoscopic systems G02B30/00) · CPC title