The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8059109 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 15, 2011

Filed:

May. 10, 2006
Applicants:

Shunpei Yamazaki, Tokyo, JP;

Jun Koyama, Kanagawa, JP;

Yoshifumi Tanada, Kanagawa, JP;

Mitsuaki Osame, Kanagawa, JP;

Hajime Kimura, Kanagawa, JP;

Ryota Fukumoto, Kanagawa, JP;

Hiromi Yanai, Kanagawa, JP;

Inventors:

Shunpei Yamazaki, Tokyo, JP;

Jun Koyama, Kanagawa, JP;

Yoshifumi Tanada, Kanagawa, JP;

Mitsuaki Osame, Kanagawa, JP;

Hajime Kimura, Kanagawa, JP;

Ryota Fukumoto, Kanagawa, JP;

Hiromi Yanai, Kanagawa, JP;

Assignee:

Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/038 (2006.01); G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

To provide a display device whose display can be recognized even in dark places or under the strong outside light. The display device performs display by controlling the number of gray scales in accordance with the intensity of outside light, which means a display mode can be switched in accordance with the data to be displayed on the display screen. A video signal generation circuit is controlled in each display mode in such a manner that it directly outputs an input video signal with an analog value, outputs a signal with a binary digital value, or outputs a signal with a multivalued digital value. As a result, gray scales displayed in pixels are timely changed. Accordingly, clear images can be displayed while maintaining high visibility in various environments, in the wide range from, for example, dark places or indoors (e.g., under a fluorescent lighting) to outdoors (e.g., under the sunlight).


Find Patent Forward Citations

Yamazaki, Shunpei. (2011). Display device and electronic apparatus (U.S. Patent No. 8059109). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8059109

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