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21.发明授权公开(公告)号：US09898989B2
公开(公告)日：2018-02-20
申请号：US15011502
申请日：2016-01-30
Inventor： Juncheng Xiao , Yao Yan , Ronglei Dai , Shangcao Cao
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.
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公开(公告)号：US20180046308A1
公开(公告)日：2018-02-15
申请号：US15026595
申请日：2016-02-25
Inventor： Juncheng Xiao , Yao Yan , Shangcao Cao , Ronglei Dai
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).
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公开(公告)号：US20170032734A1
公开(公告)日：2017-02-02
申请号：US14779013
申请日：2015-08-07
Inventor： Sikun Hao , Xin Zhang , Ronglei Dai
IPC: G09G3/20 , G09G3/36 , G09G3/3266
CPC classification number: G09G3/2096 , G09G3/20 , G09G3/3266 , G09G3/3677 , G09G2300/0426 , G09G2300/0814 , G09G2310/0208 , G09G2310/0286 , G09G2310/0289 , G09G2310/0291
Abstract: A driving circuit is provided, a driving unit of the driving circuit includes: a control unit utilized to control an output of a stage transmission signal; a stage transmission signal latch unit utilized to receive the stage transmission signal for generating a latch signal; a first and second scanning signal generation units; a first inverted output unit utilized to invert the first scanning signal; a second inverted output unit utilized to invert the second scanning signal. A configuration of a GOA circuit can be simplified.
Abstract translation: 提供驱动电路，驱动电路的驱动单元包括：控制单元，用于控制级传输信号的输出; 用于接收用于产生锁存信号的级传输信号的级传输信号锁存单元; 第一和第二扫描信号发生单元; 用于反转第一扫描信号的第一反相输出单元; 用于反转第二扫描信号的第二反相输出单元。 可以简化GOA电路的配置。
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公开(公告)号：US11967266B2
公开(公告)日：2024-04-23
申请号：US17051443
申请日：2020-08-28
Inventor： Dian Zhang , Ronglei Dai
IPC: G09G3/20
CPC classification number: G09G3/2092 , G09G2310/0267
Abstract: A MOG circuit and a display panel are provided. The MOG circuit controls the current-stage MOG circuit through the first node signal to block the input of the MUX signal. At the same time, the MOG circuit controls the current-stage MUX circuit through the second node signal such that the voltage level of the scan signal is pulled down to the voltage level of the first low voltage level signal. In this way, all the scan signals could satisfy the turn-off stage while the MUX circuit has a lower loading capability.
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公开(公告)号：US11004380B2
公开(公告)日：2021-05-11
申请号：US16319822
申请日：2018-09-22
Inventor： Ronglei Dai
IPC: G09G3/20
Abstract: The present invention teaches a Gate Driver on Array (GOA) circuit for a display panel. The GOA circuit includes a first dummy GOA unit and/or a second dummy GOA unit not connecting scan lines of the display panel's active area, and normal GOA units connecting scan lines of the active area. The normal GOA units are cascaded into a chain. The first dummy GOA unit is cascaded to a first normal GOA unit of the chain and/or the second dummy GOA unit is cascaded to a last normal GOA unit of the chain. A start signal of the display panel's vertical scanning as a cascaded signal is input into the first dummy GOA unit and/or the second dummy GOA unit. The GOA circuit excludes the line of afterimage from the active area, thereby allowing the fast black frame insertion after abnormal shutdown.
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Patent Agency Ranking
公开(公告)号：US10777107B2
公开(公告)日：2020-09-15
申请号：US15744421
申请日：2017-11-25
Inventor： Ronglei Dai
Abstract: Embodiments of the present application provides an array substrate, testing method and display apparatus. The array substrate comprises a testing circuit, pixel units and data lines connecting to the pixel units. The data lines are used for providing data signals to the pixel units and are arranged to extend along a first direction. The testing circuit comprises a switching unit and testing units. The switching unit comprises a first number of first switching elements parallelly arranged along the first direction, and the testing units are parallelly arranged along a second direction perpendicular to the first direction. By using the present application, performance of substrate testing can be ensured while achieving narrow boarder, and user experiences could be easily improved.
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公开(公告)号：US10431178B2
公开(公告)日：2019-10-01
申请号：US15969246
申请日：2018-05-02
Inventor： Ronglei Dai
Abstract: The disclosure provides a GOA driving circuit comprising a plurality of GOA driving unit stages. When power is turned off, the pull-up control module controls the pull-up output module to stop outputting the clock signal, the pull-down control module controls the pull-down output module to stop outputting the low potential signal, the first global control module outputs the high potential signal, the reset module stops outputting the reset signal, and the second global control module stops outputting the low potential signal. Generation of the residual image on the liquid crystal screen is prevented when power is turned off.
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公开(公告)号：US10262609B2
公开(公告)日：2019-04-16
申请号：US15011506
申请日：2016-01-30
Inventor： Ronglei Dai
IPC: G09G3/36
Abstract: The disclosure discloses a scanning driving circuit and a liquid crystal display apparatus, the scanning driving circuit including a first driving circuit and a second driving circuit, each of the first driving circuit and the second driving circuit including a number of driving units in cascade connections, and each of the driving units including: a forward and reverse scanning module to output a forward scanning signal, a reverse scanning signal and an optional signal; a pull-down maintain module connected to the forward and reverse scanning module and to receive the optional signal from the forward and reverse scanning module and output a pull down signal according to the optional signal; a control module connected to the forward and reverse scanning module and the pull-down maintain module; a reset module connected to the pull-down maintain module and the control module to reset the electrical potential of the scanning line.
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公开(公告)号：US10204579B2
公开(公告)日：2019-02-12
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
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：US10121433B2
公开(公告)日：2018-11-06
申请号：US14895601
申请日：2015-11-06
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
Abstract: A gate on array (GOA) circuit for used in an LCD includes GOA units connected in cascade. An Nth GOA unit includes an Nth stage-transmittance circuit, an Nth Q-node controlling circuit, an Nth P-node controlling circuit, an Nth outputting circuit, and a first switch circuit where N is a positive integer. The first switch circuit connected to the Nth scanning line, for inputting an enabling signal to the Nth scanning line before the LCD shows images so as to turn on a TFT in a pixel which the Nth scanning line is connected to. The benefit of the function is that the display does not leak electricity when the black screen is woken up and that the stability of the circuit is enhanced at the same time.
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