公开(公告)号：US11106070B2

公开(公告)日：2021-08-31

申请号：US16306587

申请日：2018-08-10

Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD

Inventor： Juncheng Xiao ,  Chao Tian

IPC: G02F1/1333 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/1343 ,  G06F3/041 ,  H01L27/12

Abstract: The invention provides an array substrate, a manufacturing method thereof and a display panel. The array substrate includes a substrate, a buffer layer, an active layer, a first insulating layer, a gate electrode, a second insulating layer, a touch signal line, a source and drain electrode, a touch signal line, a source and drain electrode, a first electrode, a planarization layer, and a second electrode. The first electrode and the second electrode are respectively connected to one of the drain electrode and the touch signal line. Thus, photomask processes can be reduced, and production cycle can be shortened.

公开(公告)号：US10540937B2

公开(公告)日：2020-01-21

申请号：US15745098

申请日：2017-11-27

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

Inventor： Juncheng Xiao ,  Yanqing Guan

IPC: G09G3/36 ,  G02F1/1345 ,  H01L27/12

Abstract: This invention provides a GOA circuit comprising m cascaded GOA units. An n-th GOA unit includes an output control module, a forward/backward scanning control module, a node signal control module, a second pull-down circuit, a first pull-down circuit and a pull-up circuit. The forward/backward scanning control module control the GOA circuit to perform a forward or a backward scanning. The output control module controls an output of an n-th gate driving signal. The first pull-down circuit comprises a seventh thin film transistor. The second pull-down circuit comprises a fifth thin film transistor. The node signal control module control the fifth thin film transistor. The pull-up circuit includes an eighth thin film transistor. After the LCD panel is powered off, the second global control signal becomes a low level. This invention can eliminate a ghost image in the LCD panel when electricity is powered off, and improve user experience.

公开(公告)号：US10013942B2

公开(公告)日：2018-07-03

申请号：US14900684

申请日：2015-10-21

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

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

IPC: G09G3/36 ,  G02F1/1368 ,  G02F1/1362

CPC classification number: G09G3/3677 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2203/64 ,  G09G2300/0408 ,  G09G2310/0245 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0214 ,  G09G2330/026 ,  G11C19/28

Abstract: The disclosure provides a GOA circuit, a driving method thereof and a liquid crystal display device. The GOA circuit comprises a plurality of GOA units connected in cascade, wherein the N-stage GOA unit comprises a N-stage stage circuit, a N-stage Q point control circuit, a N-stage P point circuit, a N-stage output circuit and a switch circuit. The switch circuit is connected to the N-stage scan line for sending a turn-on signal to the N-stage scan line before the liquid crystal display device displays an image such that the thin-film transistor in the pixel connected to the N-stage scan line turns on. The disclosure may turn on the gate of each pixel when the display device is waken from the black screen to prevent the electricity leakage when the display device is wakened from the black screen, and may also increase the stability of the circuit.

公开(公告)号：US09972273B2

公开(公告)日：2018-05-15

申请号：US14891646

申请日：2015-10-21

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

Inventor： Juncheng Xiao ,  Mang Zhao

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1335

CPC classification number: G09G3/3696 ,  G02F1/133514 ,  G02F1/136204 ,  G02F1/1368 ,  G02F2202/22 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/04 ,  G11C19/184

Abstract: The invention disclosure a GOA circuit and a liquid crystal display. The GOA circuit including an electrical potential pull-down controlling circuit and a plurality of GOA sub circuits in cascade connection, the electrical potential pull-down controlling circuit comprising a first voltage limited transistor, a second filter transistor and a third transistor. The first voltage limited transistor, and the second filter transistor a reconnected in series and between the output terminal of the initial scanning signal, STV signal and the control terminal of the third transistor, the control terminal of the first voltage limited transistor and the first terminal of the third transistor is connected to the first power terminal and the second terminal of the third transistor is connected to the GOA sub circuit. By this design, the damage from the large static electricity to the GOA sub circuit can be avoided.

公开(公告)号：US09922997B2

公开(公告)日：2018-03-20

申请号：US15026594

申请日：2016-02-26

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

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

IPC: H01L27/12 ,  G09G3/36 ,  G02F1/1362 ,  G02F1/1345

CPC classification number: H01L27/124 ,  G02F1/13454 ,  G02F1/136286 ,  G09G3/3648 ,  G09G3/3659 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2310/0283 ,  G09G2310/0286 ,  G11C19/28 ,  H01L27/1222 ,  H01L27/1255

Abstract: Disclosed is a GOA circuit. By locating the thirteenth thin film transistor (T13) coupled with the tenth thin film transistor (T10) in series and controlled by the Mth clock signal (CK(M)) in the output module (400) of the nth stage GOA unit, as entering signal interrupt and performing touch scan, the output competition of the output ends (G(n)) can be prevented; by locating the twelfth thin film transistor (T12) controlled by the global control signal (Gas) in the output end pull-down module (600), and by setting the composite signal (CS) to be the pulse signal consistent with the touch scan signal as entering signal interrupt and performing touch scan, the twelfth thin film transistors (T12) of the GOA units of all stages can be activated, and the output ends of the GOA units of all stages outputs the composite signal (CS) consistent with the touch scan signal (TP).

公开(公告)号：US09898989B2

公开(公告)日：2018-02-20

申请号：US15011502

申请日：2016-01-30

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

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

IPC: G09G3/36 ,  G06F3/041

CPC classification number: G09G3/3677 ,  G06F3/0412 ,  G06F3/0416 ,  G09G2300/0408 ,  G09G2310/0202 ,  G09G2310/0286

Abstract: The disclosure discloses a GOA circuit and a liquid crystal display apparatus. The GOA circuit includes a number of GOA unit in cascade connection, wherein the Nth level GOA unit includes a common signal point control module, a gate signal point control module, and a GAS signal operation module; wherein the common signal point control module is used to pull up the electrical level of the common signal point after the period of all gate on; a gate signal point control module is used to pull down the electrical level of a gate signal point after the period of all gate on; the GAS signal operation module is used to achieve the all gate on function by a first GAS signal and a second GAS signal to control the output of the Nth level gate driving signal in the touch panel scanning period.

公开(公告)号：US20180046308A1

公开(公告)日：2018-02-15

申请号：US15026595

申请日：2016-02-25

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

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

IPC: G06F3/041 ,  G09G3/36

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G09G3/20 ,  G09G3/36 ,  G09G3/3659 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2300/0852 ,  G09G2300/0871 ,  G09G2310/021 ,  G09G2310/0245 ,  G09G2310/0281 ,  G09G2310/0283 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2310/063 ,  G09G2310/08 ,  G09G2354/00 ,  G11C19/28

Abstract: Disclosed is a GOA driving circuit. In screen awakening stage, the first global control signal (Gas1) controls the twelfth thin film transistor (T12) to be activated for realizing the All Gate On function, and meanwhile controls the eleventh thin film transistor (T11) to be activated to pull down the voltage level of the second node (P(n)); in reset stage, the reset signal (Reset) controls the first thin film transistor (T1) to reset the voltage level of the second node (P(n)), and to set the duration of the single pulse of the reset signal (Reset) to be at least the sum of durations of initial pulses of the first, second clock signals; in touch scan stage, the second global control signal (Gas2) controls the thirteenth thin film transistor (T13) to be activated to make the output ends of the GOA units of the respective stages output composite signals (CS).

公开(公告)号：US09865213B2

公开(公告)日：2018-01-09

申请号：US14772386

申请日：2015-07-15

Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. LTD.

Inventor： Juncheng Xiao ,  Yao Yan

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

CPC classification number: G09G3/3677 ,  G09G3/3696 ,  G09G2310/0202 ,  G09G2310/0286 ,  G09G2310/08 ,  G11C19/287

Abstract: A scan driver circuit for driving scanning lines is proposed. The scan driver circuit includes a pull-down control module, a pull-down module, a recovering control module, a recovering module, a downlink module, a first bootstrap capacitor, a constant low voltage supply, and a constant high voltage supply. The present inventive scan driver circuit has advantages of simple structure and low power consumption.

公开(公告)号：US09818361B2

公开(公告)日：2017-11-14

申请号：US14901697

申请日：2015-10-21

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

Inventor： Juncheng Xiao ,  Mang Zhao

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G2300/0408 ,  G09G2310/0251 ,  G09G2310/0283 ,  G09G2310/0286 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2330/04

Abstract: A GOA circuit and a liquid crystal device (LCD) are disclosed. The GOA circuit includes a plurality of GOA units and a control module. Each of the cascaded GOA units is configured for charging corresponding horizontal scanning lines within a display area when being driven by a first level clock, a second level clock, a first control clock, and a second control clock. After the horizontal scanning lines are fully charged by the GOA circuit, the control module is configured for resetting the gate driving signals to be at the first level, i.e., the invalid level, via the turn-on pulse signals and the negative-voltage constant-voltage source.

公开(公告)号：US09818359B2

公开(公告)日：2017-11-14

申请号：US14889272

申请日：2015-09-25

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

Inventor： Juncheng Xiao ,  Mang Zhao

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3659 ,  G09G2300/0426 ,  G09G2310/0283 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A scanning-driving circuit and a liquid crystal display device are disclosed. The scanning-driving circuit has a forward-backward scanning module to output a forward and backward scanning-driving signals; a pull-up holding module connected to the forward-backward scanning module to receive a selecting signal of the forward-backward scanning module and to pull up a voltage level of a pull-down control signal node; an input module connected to the forward-backward scanning module and the pull-up holding module to receive a previous-stage clock signal and to charge a pull-up control signal node; a control module connected to the pull-up holding module to receive a present-stage clock signal and to control the pull-up holding module; an output module connected to the pull-up holding module and the control module to output a scanning-driving signal to a scanning line, and to transmit the scanning-driving signal to a pixel unit to ensure a stability of the scanning-driving circuit.