公开(公告)号：US20170148401A1

公开(公告)日：2017-05-25

申请号：US14781293

申请日：2015-08-28

Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd. ,  Wuhan China Star Optoelectronics Technology Co., Ltd.

Inventor： Mang ZHAO ,  Juncheng XIAO ,  Yong TIAN

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2300/0809 ,  G09G2310/08

Abstract: A GOA circuit and LCD are disclosed. The GOA circuit includes cascaded GOA units and a control module. Each of the GOA units is driven by a first level of transfer clock, a second level of transfer clock, a first control clock and a second control clock to charge horizontal signal lines corresponding to a display area. The control module masks the first level of transfer clock and the second level of transfer clock when all of the horizontal signal lines are charged completely by the GOA circuit, such that the gate driving signals on the horizontal signal lines are discharged until the level equals to the predetermined level. In this way, the horizontal signal lines are prevented from generating redundant pulse signals before the first gate driving signals are outputted, which ensures the normal operations of the GOA circuit.

公开(公告)号：US20170124970A1

公开(公告)日：2017-05-04

申请号：US15012787

申请日：2016-02-01

Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.

Inventor： Yafeng LI ,  Mang ZHAO

IPC: G09G3/36 ,  H03K17/687

CPC classification number: G09G3/3648 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2310/08 ,  H03K17/6871

Abstract: The disclosure discloses a GOA circuit based on the LTPS, including a modulation circuit; a charging circuit; an input signal terminal and an output signal terminal. The modulation circuit and the charging circuit are connected to the input signal terminal and the output signal terminal to make the modulation circuit and the charging circuit in parallel connection, and the charging circuit is used to charge the output scanning signal during the mutation process to increase the mutation speed of the output scanning signal. Wherein the charging circuit is a switch including a control terminal, a first terminal, and a second terminal; the input signal terminal is connected to the first terminal of the charging circuit. The output signal terminal is connected to the second terminal and the control terminal of the charging circuit separately. A display apparatus including the GOA circuit based on the LTPS is also provided.