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 9798204 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 24, 2017

Filed:

Nov. 18, 2013
Applicant:

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

Inventors:

Yoshiharu Hirakata, Kanagawa, JP;

Yuriko Hamamoto, Kanagawa, JP;

Rumo Satake, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/136 (2006.01); G02F 1/1362 (2006.01); G02F 1/1333 (2006.01); G02F 1/1337 (2006.01); G02F 1/1343 (2006.01);
U.S. Cl.
CPC ...
G02F 1/136209 (2013.01); G02F 1/1333 (2013.01); G02F 1/133707 (2013.01); G02F 1/134336 (2013.01); G02F 2001/13373 (2013.01); G02F 2001/133776 (2013.01);
Abstract

Disclination of an active matrix liquid crystal display device is reduced. Portions of pixel electrodes are formed so as to mutually overlap with a convex portion. If the height of the convex portion is too tall, the amount of light leakage increases due to liquid crystals orienting diagonally with respect to a substrate surface. (See FIG.C.) If the height of the convex portion is low, the disclination reduction effect is low. The optimal convex portion height is thus determined.


Find Patent Forward Citations

Hirakata, Yoshiharu. (2017). Liquid crystal display device (U.S. Patent No. 9798204). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9798204

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