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公开(公告)号：US09959830B2
公开(公告)日：2018-05-01
申请号：US15026256
申请日：2016-02-24
Inventor： Juncheng Xiao , Yao Yan , Ronglei Dai , Shangcao Cao
IPC: G09G3/36
CPC classification number: G09G3/3677 , G09G3/36 , G09G3/3648 , G09G2300/0408 , G09G2310/0289 , G09G2310/08 , G09G2330/023 , G09G2340/145
Abstract: The present invention provides a GOA circuit, comprising a forward-backward scan control module, an output module, an output pull-down module, a node control module, a second node signal input module, a second node signal control module, a voltage stabilizing module and a second capacitor; the forward scan of the circuit is controlled with the ninth and the tenth thin film transistors, and the signal input of the second node is controlled with the first and the eleventh thin film transistors, and the mutual control of the first node and the second node are achieved with the second, the fourth and the fifth thin film transistors, and meanwhile, as the GOA circuit applies to a display of dual side drive interlaced scan structure, the GOA circuits of the two sides can respectively receive four different clock signals to reduce the loading of the signal line of the GOA circuit.
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公开(公告)号：US20180068628A1
公开(公告)日：2018-03-08
申请号：US15026256
申请日：2016-02-24
Inventor： Juncheng Xiao , Yao Yan , Ronglei Dai , Shangcao Cao
IPC: G09G3/36
CPC classification number: G09G3/3677 , G09G3/36 , G09G3/3648 , G09G2300/0408 , G09G2310/0289 , G09G2310/08 , G09G2330/023 , G09G2340/145
Abstract: The present invention provides a GOA circuit, comprising a forward-backward scan control module, an output module, an output pull-down module, a node control module, a second node signal input module, a second node signal control module, a voltage stabilizing module and a second capacitor; the forward scan of the circuit is controlled with the ninth and the tenth thin film transistors, and the signal input of the second node is controlled with the first and the eleventh thin film transistors, and the mutual control of the first node and the second node are achieved with the second, the fourth and the fifth thin film transistors, and meanwhile, as the GOA circuit applies to a display of dual side drive interlaced scan structure, the GOA circuits of the two sides can respectively receive four different clock signals to reduce the loading of the signal line of the GOA circuit.
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公开(公告)号：US09905182B2
公开(公告)日：2018-02-27
申请号：US14915222
申请日：2016-01-05
Inventor： Juncheng Xiao , Shangcao Cao , Ronglei Dai , Yao Yan
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：US20170102805A1
公开(公告)日：2017-04-13
申请号：US15009803
申请日：2016-01-28
Inventor： Juncheng Xiao , Shangcao Cao , Yao Yan , Ronglei Dai
IPC: 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.
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