公开(公告)号：US09792845B2

公开(公告)日：2017-10-17

申请号：US14777748

申请日：2015-07-17

Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. LTD.

Inventor： Juncheng Xiao ,  Mang Zhao ,  Yao Yan

IPC: G09G3/36 ,  G06F3/038 ,  G09G5/00 ,  G09G3/20

CPC classification number: G09G3/20 ,  G09G2300/0408 ,  G09G2310/0267

Abstract: A scan driving circuit is provided for driving scan lines which are connected in series, including a pull-down controlling module, a pull-down module, a reset-controlling module, a resetting module, a downward-transmitting module, a first bootstrap capacitor, a constant low voltage level source, and a constant high voltage level source. The entire structure of the scan driving circuit is simple, and energy consumption is reduced.

公开(公告)号：US09632611B1

公开(公告)日：2017-04-25

申请号：US15009803

申请日：2016-01-28

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

Inventor： Juncheng Xiao ,  Shangcao Cao ,  Yao Yan ,  Ronglei Dai

IPC: G09G3/36 ,  G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06F2203/04103

Abstract: The invention discloses a GOA circuit for in-cell type touch display panel; during black screen, using a first global control signal to make a thirteenth N-type TFT conductive to raise a scan driving signal of each stage to high, using the first global control signal to make a twelfth N-type TFT conductive to pull down a voltage level of a second node, and pulling down a voltage level of a first node to avoid ineffective all-gate-on function; using a reset signal and a fourteenth N-type TFT to reset the second node to realize the normal output after awaking from black screen; during stop, setting a negative voltage as a pulse signal having same amplitude, phase and frequency as a touch signal, using a second global control signal to make the fifteenth N-type TFT conductive to output the negative voltage in pulse form to reduce cross-talk between the touch signal and a scan output end.

公开(公告)号：US09558704B2

公开(公告)日：2017-01-31

申请号：US14761102

申请日：2015-04-30

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

Inventor： Juncheng Xiao

IPC: G09G3/36 ,  H01L27/12

CPC classification number: G09G3/3677 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2310/0251 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2330/021 ,  H01L27/124

Abstract: The disclosure discloses a GOA circuit and a liquid crystal display. The GOA circuit comprises a plurality of GOA units, each sequentially charging the Nth-staged horizontal scanning lines and the (N+1)th-staged horizontal scanning lines in the display region. The GOA unit comprises N-staged pull-up control circuits, (N+1)-staged pull-up control circuits, N-staged pull-up circuits, (N+1)-staged pull-up circuits, N-staged pull-down circuits, (N+1)-staged pull-down circuits, and a pull-down holding circuit. The pull-down holding circuit holds the voltage level of the Nth-staged gate signal point and the Nth-staged horizontal scanning line to the low level after the Nth-staged horizontal scanning line is charged, and holds the voltage level of the (N+1)th-staged gate signal point and the Nth-staged horizontal scanning line to the low level after the (N+1)th-staged horizontal scanning line is charged. By way of such configuration, the two-staged GOA units share a common pull-down holding circuit to further reduce the power consumption.

Abstract translation: 本公开公开了一种GOA电路和液晶显示器。 GOA电路包括多个GOA单元，每个GOA单元顺序地对显示区域中的第N级水平扫描线和第（N + 1）级的水平扫描行进行充电。 GOA单元包括N级上拉控制电路，（N + 1）级上拉控制电路，N级上拉电路，（N + 1）级上拉电路，N级拉 （N + 1）级下拉电路和下拉保持电路。 在第N级水平扫描线被充电之后，下拉保持电路将第N级门信号点和第N级水平扫描线的电压保持在低电平，并且保持（N （N + 1）级的第一级水平扫描线被充电后，将第1级第1阶段的信号点和第N级的水平扫描线设为低电平。 通过这种配置，两级GOA单元共享共同的下拉保持电路，以进一步降低功耗。