Gate driving circuit and display apparatus having the same

Details Gate driving circuit and display apparatus having the same Gate driving circuit and display apparatus having the same

2007-08-17

2008-08-26

Tran, Anh Q (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

Sequential or with flip-flop

C326S093000, C326S027000, C341S100000

Reexamination Certificate

active

07417458

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.

REFERENCES:
patent: 2006/0061562 (2006-03-01), Park et al.
patent: 2006/0146978 (2006-07-01), Jang
patent: 2008/0012816 (2008-01-01), Moon

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