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:
Nov. 29, 2011
Filed:
Sep. 23, 2009
Applicants:
Yi-suei Liao, Hsinchu, TW;
Jian-hong Lin, Hsinchu, TW;
Inventors:
Yi-Suei Liao, Hsinchu, TW;
Jian-Hong Lin, Hsinchu, TW;
Assignee:
AU Optronics Corporation, Hsinchu, TW;
Primary Examiner:
Int. Cl.
CPC ...
G11C 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a pull-down control circuit and a shift register of using same. In one embodiment, the pull-down control circuit includes a release circuit and four transistors T, T, Tand Telectrically coupled to each other. The release circuit is adapted for causing the transistor Tto be turned on and off alternately, thereby substantially reducing the stress thereon, improving the reliability and prolonging the lifetime of the shift register.