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公开(公告)号：US09898984B2
公开(公告)日：2018-02-20
申请号：US14888426
申请日：2015-09-29
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd. , Wuhan China Star Optoelectronics Technology Co., Ltd.
发明人： Juncheng Xiao , Ronglei Dai , Yao Yan , Shangcao Cao
IPC分类号： G09G3/36 , G02F1/1362
CPC分类号： G09G3/3674 , G02F1/1362 , G09G3/20 , G09G3/3648 , G09G2300/0408 , G09G2300/0434 , G09G2310/0202 , G09G2310/0218 , G09G2310/0267 , G09G2310/0286 , G11C19/287
摘要： The invention discloses a GOA circuit, a display device and a drive method of a GOA circuit, the GOA circuit is set to be GOA units including a plurality of levels, a N leveled GOA unit is applied to charge a N leveled scanning line of a display region of the display device, the N leveled scanning line is connected to a first gate all on signal and a second gate all on signal, which can guarantee scanning lines corresponding to all the GOA units are being charged under control of the first gate all on signal and the second gate all on signal. The invention can carry out an all gate on function according to the method above.
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公开(公告)号：US09799293B2
公开(公告)日：2017-10-24
申请号：US14786071
申请日：2015-09-21
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd. , Wuhan China Star Optoelectronics Technology Co., Ltd.
发明人： Juncheng Xiao , Shangcao Cao , Yao Yan , Ronglei Dai
IPC分类号： G09G3/36
CPC分类号： G09G3/3677 , G02F1/133 , G09G3/36 , G09G3/3696 , G09G2300/0408 , G09G2300/0871 , G09G2310/0202 , G09G2310/08
摘要： A liquid crystal display device and a gate driving circuit are disclosed. The gate driving circuit includes multiple-stage gate driving units and a control chip. Each stage gate driving unit includes a first pulling control unit, a first pulling unit, a second pulling control unit, a second pulling unit, a first control unit, a second control unit and a third control unit. The control chip is used for pulling a first clock signal and a first voltage reference signal to a first voltage level. Accordingly, the scanning lines driven by the gate driving circuit are all turned on in order to stably realize an All-Gate-On function.
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公开(公告)号：US09933889B2
公开(公告)日：2018-04-03
申请号：US15026595
申请日：2016-02-25
发明人： Juncheng Xiao , Yao Yan , Shangcao Cao , Ronglei Dai
CPC分类号： 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
摘要： 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：US20180047759A1
公开(公告)日：2018-02-15
申请号：US14915892
申请日：2016-01-28
IPC分类号： H01L27/12 , G09G3/36 , H01L29/786 , G02F1/1333 , G02F1/1362
CPC分类号： G09G3/3674 , G02F1/13 , G02F1/1333 , G02F1/1362 , G09G3/36 , G09G2310/0286 , G11C19/184 , G11C19/28 , H01L27/1222 , H01L27/1237 , H01L29/78651
摘要： The invention provides a GOA circuit for narrow border LCD panel, by disposing a first node leakage prevention unit (700) comprised of ninth TFT (T9), tenth TFT (T10) and third capacitor (C3), wherein the ninth TFT (T9) has gate and source connected to the output clock signal (CK) to form a diode structure to charge the third capacitor (C3) and fourth node (H(n)) to high voltage; the tenth TFT (T10) clears the fourth node during stage-propagated signal duration to ensure normal charging for the first node (Q(n)). The GOA circuit is applicable to dual-side progressive scanning architecture and also to dual-side interlaced scanning architecture, and able to prevent current leakage in the first node under dual-side interlaced scanning architecture to ensure stable operation of circuit and improve reliability of GOA circuit. Moreover, with only two clock signals on each side, the invention is suitable for narrow border display panel.
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公开(公告)号：US20180047751A1
公开(公告)日：2018-02-15
申请号：US15026594
申请日：2016-02-26
发明人： Juncheng Xiao , Shangcao Cao , Ronglei Dai , Yao Yan
IPC分类号： H01L27/12 , G02F1/1345 , G02F1/1362 , G09G3/36
CPC分类号： H01L27/124 , G02F1/13454 , G02F1/136286 , G09G3/3648 , G09G3/3659 , G09G3/3677 , G09G2300/0408 , G09G2310/0283 , G09G2310/0286 , G11C19/28 , H01L27/1222 , H01L27/1255
摘要： 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).
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公开(公告)号：US09805680B2
公开(公告)日：2017-10-31
申请号：US14785907
申请日：2015-09-21
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd. , Wuhan China Star Optoelectronics Technology Co., Ltd.
发明人： Juncheng Xiao , Ronglei Dai , Yao Yan , Shangcao Cao
IPC分类号： G09G3/36
CPC分类号： G09G3/3677 , G02F1/13454 , G09G3/3696 , G09G2300/0408 , G09G2300/0426 , G09G2300/0871 , G09G2310/08
摘要： A liquid crystal display device and a gate driving circuit are disclosed. The gate driving circuit includes multiple-stage gate driving units and a control chip. Each stage gate driving unit includes a first pulling control unit, a first pulling unit, a second pulling control unit, a second pulling unit, a first reset unit, a second reset unit. The control chip is used for pulling a first clock signal and a first voltage reference signal to a first voltage level. Accordingly, the scanning lines driven by the gate driving circuit are all turned on in order to stably realize an All-Gate-On function.
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公开(公告)号：US09792845B2
公开(公告)日：2017-10-17
申请号：US14777748
申请日：2015-07-17
发明人： Juncheng Xiao , Mang Zhao , Yao Yan
CPC分类号： G09G3/20 , G09G2300/0408 , G09G2310/0267
摘要： 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.
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公开(公告)号：US09632611B1
公开(公告)日：2017-04-25
申请号：US15009803
申请日：2016-01-28
发明人： Juncheng Xiao , Shangcao Cao , Yao Yan , Ronglei Dai
CPC分类号： G06F3/0412 , G06F3/044 , G06F2203/04103
摘要： 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.
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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
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd. , Wuhan China Star Optoelectronics Technology Co., Ltd.
发明人： Juncheng Xiao , Shangcao Cao , Ronglei Dai , Yao Yan
摘要： 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
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd. , Wuhan China Star Optoelectronics Technology Co., Ltd.
发明人： Juncheng Xiao , Ronglei Dai , Shangcao Cao , Yao Yan
IPC分类号： G09G3/36
摘要： 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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