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.:
Date of Patent:
Oct. 09, 2012
Filed:
Jan. 15, 2010
Applicants:
Jun Tanaka, Kawasaki, JP;
Shinji Sekiguchi, Kawasaki, JP;
Norio Mamba, Kawasaki, JP;
Inventors:
Assignees:
Hitachi Displays, Ltd., Chiba, JP;
Panasonic Liquid Crystal Displays Co., Ltd., Hyogo-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/045 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a liquid crystal display device having a built-in capacitive coupling touch sensor, a pair of facing transparent substrates sandwich a liquid crystal layerand a liquid crystal display circuit for driving liquid crystal using a lateral electrical field having a color filter layeris formed on one of the transparent substratesin order to make the touch sensor highly sensitive to change in the capacitance, and a capacitive coupling touch sensor circuit layeris formed on the other substrate, on the side opposite to the liquid crystal.