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:
Jan. 07, 2014
Filed:
Jun. 04, 2002
Applicant:
Ken-ichi Takatori, Tokyo, JP;
Inventor:
Ken-ichi Takatori, Tokyo, JP;
Assignee:
Gold Charm Limited, Apia, WS;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/136 (2006.01);
U.S. Cl.
CPC ...
Abstract
A data signal voltage on a signal lineis held in a voltage holding capacitorthrough an n-type MOS transistorswitched on by a gate scan voltage, and supplied to an analog amplifier circuit-. The analog amplifier circuit-is formed of an MOS transistor having a double gate structure, and the operating point thereof is set at an operating range in which dependence of Ids on Vds is substantially nullified. Even when Vds is varied due to a response of liquid crystal, Ids is substantially fixed. Accordingly, the pixel voltage which is substantially proportional to the data signal voltage can be applied to the liquid crystal