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公开(公告)号：US20200273418A1
公开(公告)日：2020-08-27
申请号：US16342977
申请日：2018-12-27
Inventor： Xin ZHANG , Juncheng XIAO , Yanqing GUAN
IPC: G09G3/36
Abstract: The invention provides a GOA circuit, a display panel and a display device. The GOA circuit includes: a first voltage stabilizing module, including a first capacitor and a second capacitor, and one end of the first capacitor is connected to a connection point between a forward scan control signal and a forward and reverse scan control module; one end of the second capacitor is connected to a connection point between a reverse scan control signal and the forward and reverse scan control module.
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公开(公告)号：US20200168168A1
公开(公告)日：2020-05-28
申请号：US16472900
申请日：2019-01-03
Inventor： Xin ZHANG , Juncheng XIAO , Yanging GUAN
Abstract: A gate driver circuit and a liquid crystal panel using the same are provided. The gate driver circuit includes a forward/reverse switching module, a low electrical potential line, and a synchronization module. The forward/reverse switching module includes an up to down terminal and a down to up terminal. The synchronization module is configured to electrically conduct the low electrical potential line with one of the up to down terminal and the down to up terminal which has a lower electrical potential.
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公开(公告)号：US20180053482A1
公开(公告)日：2018-02-22
申请号：US15802924
申请日：2017-11-03
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.
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Patent Agency Ranking
公开(公告)号：US20170256224A1
公开(公告)日：2017-09-07
申请号：US14915222
申请日：2016-01-05
Inventor： Juncheng XIAO , Shangcao CAO , Ronglei DAI , Yao YAN
IPC: G09G3/36
CPC classification number: G09G3/3677 , G06F3/0416 , G09G2300/0408 , G09G2310/0251 , G09G2310/0283 , G09G2310/0286 , G09G2310/08
Abstract: A GOA driving circuit, a TFT display panel and a display device are disclosed. The GOA driving circuit includes: an input module configured for outputting first control signals in accordance with the received display scanning signals and the touch scanning signals; an output module configured for outputting the first output control signals in accordance with the first control signals and the first clock signals; a pull-down module configured for outputting pull-down signals in accordance with the first control signals, the second control signals and the low level signals; and a pull-down maintaining module configure for outputting the second output control signals in accordance with the pull-down signals, the high level signals, and the first clock signals. The DC source is adopted to charge/discharge Qn to keep Qn at a reasonable level, and the transfer capability is enhanced. In addition, the forward scanning and the backward scanning may be implemented.
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公开(公告)号：US20170169784A1
公开(公告)日：2017-06-15
申请号：US14889423
申请日：2015-10-21
Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd. , Wuhan China Star Optoelectronics Technology Co., Ltd.
Inventor： Juncheng XIAO , Shangcao CAO , Ronglei DAI , Yao YAN
CPC classification number: G09G3/3677 , G09G2300/0408 , G09G2300/0426 , G09G2310/0251 , G09G2310/0286 , G09G2310/061 , G09G2310/08 , G11C19/28 , H01L27/124
Abstract: A GOA circuit, a display device, and a driving method of GOA circuit are disclosed. A N-th level GOA unit is configured for charging the N-th level horizontal scanning line (G(N)) within a display area of the display device. The N-th level horizontal scanning line (G(N)) connects to GAS. In response to the GAS, the horizontal scanning lines corresponding to all of the GOA units are in a charging state. In this way, the horizontal scanning lines at each level are connected to the GAS, such that when the GAS are valid, the corresponding horizontal scanning line at each level are in the charging state of in an on-state so as to realize the All Gate On function.
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公开(公告)号：US20170162149A1
公开(公告)日：2017-06-08
申请号：US14785043
申请日：2015-08-10
Inventor： Mang ZHAO , Juncheng XIAO , Yong TIAN
IPC: G09G3/36
CPC classification number: G09G3/3677 , G09G3/3266 , G09G3/3696 , G09G2300/043 , G09G2310/0267 , G09G2310/0286
Abstract: The present invention provides a scanning driving circuit for executing a driving operation to cascaded scanning lines, the scanning driving circuit includes a pull-down control module, a pull-down module, a reset module, a down link module, a first bootstrap capacitor, a constant low voltage level source, and a constant high voltage level source; wherein a cascading manner of the clock signal is determined according to a scanning order of the scanning driving circuit, for the reset module to pull up the corresponding scanning signal of the scanning line. The structure of the scanning driving circuit of the present invention is simple and highly dependable.
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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.
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公开(公告)号：US20160307535A1
公开(公告)日：2016-10-20
申请号：US14765791
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
CPC classification number: G09G3/3677 , G09G3/20 , G09G2310/0251 , G09G2310/0267 , G09G2310/0286 , G09G2310/06 , G09G2310/08 , G09G2330/021
Abstract: A GOA circuit comprising GOA units and a liquid crystal display are disclosed. The N-staged GOA units charge the Nth-staged horizontal scanning line in the display region, and comprise N-staged pull-up control circuits, N-staged pull-up circuits, N-staged transfer circuits, N-staged pull-down circuits, and N-staged pull-down holding circuits. The N-staged pull-up circuits turn on when the Nth-staged gate signal point is at a high voltage level, receive a first clock signal and charge the N-staged horizontal scanning lines when the first clock signal is at a high voltage level. The N-staged transfer circuits receive a second clock signal when the Nth-staged gate signal point is at the high voltage level and output N-staged transfer signals to control the operation of the (N+1)-staged GOA units. The disclosure may ensure the scanning lines in the GOA circuit to be better charged for facilitating normal operation for each point in the circuit.
Abstract translation: 公开了一种包括GOA单元和液晶显示器的GOA电路。 N级GOA单元对显示区域的第N级水平扫描线进行充电，并且包括N级上拉控制电路，N级上拉电路，N级分接电路，N级分接拉 电路和N级下拉保持电路。 当第N级门信号点处于高电压电平时，N级上拉电路接通，当第一时钟信号处于高电压电平时接收第一时钟信号并为N级水平扫描线充电 。 当N级分段门信号点处于高电压电平时，N级转移电路接收第二时钟信号，并且输出N级转移信号以控制（N + 1）阶级GOA单元的操作。 本公开可以确保GOA电路中的扫描线更好地充电以便于电路中的每个点的正常操作。
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