Electronic Display Device Medium and Screen Display Control Method Used for Electronic Display Medium

• US 20080117323A1
• Filed: 02/27/2006
• Published: 05/22/2008
• Est. Priority Date: 03/01/2005
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Matsuoka, Masaharu, Morikawa, Takanori, Sakamoto, Kiyomi
• Granted Patent: US 8,184,132 B2
• Time in Patent Office: Days
• US Class Current: 348/333.01
• CPC Class Codes: G06F 3/011 Arrangements for interaction with the human body, e.g. for user immersion in virtual reality blind teaching G09B21/00
• CPC Class Codes: G06F 3/013 Eye tracking input arrangements G06F3/015 takes precedence
• CPC Class Codes: G06V 40/193 Preprocessing; Feature extraction
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T

Abstract

When an electronic book 1 is activated, a video image obtaining section 2 starts taking face images of a user. Next, an analysis section 4 analyzes the face images of the user taken by the video image obtaining section 2, thereby inferring a physiological condition of a user. Then, a display control section 5 adjusts, in units of predetermined time periods, a display state of a screen 6 such as brightness and contrast in accordance with the physiological condition.

Claims

1. An electronic display medium comprising:

a screen for displaying a content;

a video image obtaining section for taking a face image of a user;

an analysis section for obtaining physiological information about a human from the face image taken by the video image obtaining section and analyzing the physiological information, thereby inferring a physiological condition of the user; and

a display control section for controlling, in accordance with the physiological condition inferred by the analysis section, a display state of the screen displaying the content wherein

the analysis section starts obtaining the physiological information after a visual information processing task is completed, and finishes obtaining the physiological information when a predetermined period of time has passed after starting obtaining the physiological information.

2. The electronic display medium according to claim 1, further comprising an operation button for switching the content, wherein

the analysis section starts obtaining the physiological information by setting a time point at which an input is provided through the operation button, to be a time point at which the visual information processing task is completed.

3. The electronic display medium according to claim 1, wherein the screen selectively displays, as the content, a program and a commercial,

the electronic display medium further comprising commercial detection means for detecting a switch in the content from the program to the commercial, wherein

the analysis section starts obtaining physiological information by setting a time point, at which the content switches from the program to the commercial, to be a time point at which the visual information processing task is completed.

4-11. -11. (canceled)

12. A screen display control method used for an electronic display medium, comprising:

a video image obtaining step of taking a face image of a user;

an analyzing step of obtaining physiological information about a human from the face image taken at the video image obtaining step and analyzing the physiological information, thereby inferring a physiological condition of the user; and

a display control step of controlling, in accordance with the physiological condition inferred at the analyzing step, a display state of a screen displaying a content, wherein

the analyzing step starts obtaining the physiological information after a visual information processing task is completed, and finishes obtaining the physiological information when a predetermined period of time has passed alter starting obtaining the physiological information.