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:
Aug. 26, 2008
Filed:
Aug. 17, 2007
Byeong-jae Ahn, Suwon-si, KR;
Sung-man Kim, Seoul, KR;
Bong-jun Lee, Seoul, KR;
Hong-woo Lee, Cheonan-si, KR;
Byeong-Jae Ahn, Suwon-si, KR;
Sung-Man Kim, Seoul, KR;
Bong-Jun Lee, Seoul, KR;
Hong-Woo Lee, Cheonan-si, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
In a gate driving circuit and a display apparatus having the same, a ripple preventing part is connected to a pull-up part and a control terminal (Q-node) to reset the Q-node. The ripple preventing part includes a first ripple preventing device that resets the Q-node during a high period of the first clock within a (n−1)H period, and a second ripple preventing device that resets the Q-node during a high period of a second clock within the (n−1)H period. A back-flow preventing device is connected between a previous carry node and the second ripple preventing device to prevent an electric charge of the Q-node from flowing back to the previous carry node.