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.

Date of Patent:
Sep. 11, 2012

Filed:

Sep. 30, 2008
Applicants:

Hong-woo Lee, Cheonan-si, KR;

Hyeon-hwan Kim, Cheonan-si, KR;

Byeong-jae Ahn, Suwon-si, KR;

Sun-hyung Kim, Seoul, KR;

Sung-man Kim, Seoul, KR;

Bong-jun Lee, Seoul, KR;

Inventors:

Hong-Woo Lee, Cheonan-si, KR;

Hyeon-Hwan Kim, Cheonan-si, KR;

Byeong-Jae Ahn, Suwon-si, KR;

Sun-Hyung Kim, Seoul, KR;

Sung-Man Kim, Seoul, KR;

Bong-Jun Lee, Seoul, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

A gate driving circuit includes stages, the stages being cascaded and each including: a pull-up part which pulls up a gate voltage to a clock signal during a horizontal scanning period (1H); a carry part which pulls up a carry voltage to the clock signal during the horizontal scanning period (1H); a pull-up driving part connected to a control terminal (Q-node) common to the carry part and the pull-up part and which receives a previous carry voltage from a first previous stage to turn on the pull-up part and the carry part; and a ripple preventing part which prevents a ripple generated at a previous Q-node of a second previous stage based on a ripple generated at the Q-node of the carry part and the pull-up part.


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