公开(公告)号：US10762853B2

公开(公告)日：2020-09-01

申请号：US16050129

申请日：2018-07-31

Applicant: LG Display Co., Ltd.

Inventor： Chungsik Kong ,  Honggyu Han ,  Mihee Shin ,  Sewan Lee

IPC: G11C19/00 ,  G09G3/3291 ,  G11C19/28 ,  G09G3/3266 ,  G09G3/36

Abstract: An organic light emitting display comprises pixels connected to gate lines, and a gate driving circuit to supply a gate signal to at least one gate line, and having stages connected to each other in a cascading way. A nth (n is a positive integer) stage of the gate driving circuit includes a Q1 node charging unit to charge a Q1 node to a turn-on voltage using first and second clock signals in reverse-phase, and a pull-up transistor to apply the turn-on voltage to an output terminal in response to a Q1 node voltage. The Q1 node charging unit includes a first charging unit to charge the Q1 node voltage to the turn-on voltage using the second clock signal; and a second charging unit to charge a Q2 node, coupled to the Q1 node, using the first clock signal in a section where the Q1 node has the turn-on voltage.