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公开(公告)号：US20170140728A1
公开(公告)日：2017-05-18
申请号：US14905967
申请日：2015-12-23
IPC: G09G3/36 , G02F1/1345 , G02F1/1368
CPC classification number: G09G3/3677 , G02F1/13454 , G02F1/1368 , G09G2300/0819 , G09G2310/0251 , G09G2310/0286 , G09G2310/08 , G09G2330/021
Abstract: A GOA circuit includes GOA circuit units. When scan signal outputted by a previous stage GOA circuit unit and a next stage GOA circuit unit are at a low level, a fifth transistor controlled by the scan signal of previous stage GOA circuit unit and a sixth transistor controlled by the scan signal of a next stage GOA circuit unit turn on, so that the current stage GOA circuit unit starts to operate, and voltage of a control node becomes the same as the first constant voltage. When a third clock signal is triggered, the scan signal of the previous stage GOA circuit unit is charged from the low level, which was maintained previously, to the first constant voltage. Therefore, scan signal of GOA circuit unit will not affect the normal stage transmission of other GOA circuit units, and mitigate the problem of outputting redundant scan signal pulse.
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公开(公告)号：US20170123264A1
公开(公告)日：2017-05-04
申请号：US15009547
申请日：2016-01-28
Inventor： Yafeng LI , Xiangyi PENG
IPC: G02F1/1335 , G02F1/1362 , G02F1/1368 , G02F1/1339
CPC classification number: G02F1/133512 , G02F1/133514 , G02F1/13394 , G02F1/136259 , G02F1/136286 , G02F1/1368 , G02F2001/136295
Abstract: The present disclosure discloses a display panel, including a color filter plate substrate and an array substrate; the color filter plate substrate includes a black matrix and a protective layer; the color filter plate substrate and the array substrate are disposed opposite; the protective layer is disposed on a side of the black matrix oriented to the array substrate in a laser incidence region during laser repair. The protective layer is disposed on a side of the black matrix oriented to the array substrate in a laser incidence region during laser repair according to the disclosure, therefore, the preventive layer can protect the black matrix during laser repair from forming a through-hole on the black matrix that can leak light.
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公开(公告)号：US20190213969A1
公开(公告)日：2019-07-11
申请号：US15327305
申请日：2016-12-29
Inventor： Yafeng LI
IPC: G09G3/36 , G09G3/3266
CPC classification number: G09G3/3677 , G09G3/20 , G09G3/3266 , G09G2300/0426 , G09G2300/0809 , G09G2310/08
Abstract: Disclosed are a gate driving circuit and a driving method thereof, and a display device using the driving circuit. In the gate driving circuit, a Qn node in a nth-stage circuit is precharged when a Qn−1 node output signal in a previous-stage driving circuit and a Qn+1 node output signal in a next-stage driving circuit are both at high levels, and thus stability of a Gn output end in the nth-stage circuit can be greatly improved. Meanwhile, a first transistor and a second transistor are connected in series, and a third transistor and a fourth transistor are connected in series.
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公开(公告)号：US20190155092A1
公开(公告)日：2019-05-23
申请号：US15738041
申请日：2017-12-05
Inventor： Yafeng LI , Jinfang WU
IPC: G02F1/1335
Abstract: The present invention provides a method for manufacturing a color filter substrate, the method comprises providing a substrate body with a surface of the substrate body having the pixel unit areas; defining a dividing line on the substrate body; defining a dividing line on the substrate body; marking two sides of the auxiliary area as a predetermined displaying area and a predetermined shielding area, marking first regions in the predetermined displaying area, marking second regions in the predetermined shielding area, and marking third regions in other areas; and forming a shielding layer in each of the second regions and at least one third region.
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公开(公告)号：US20180336856A1
公开(公告)日：2018-11-22
申请号：US15548414
申请日：2017-04-18
IPC: G09G3/36 , G02F1/133 , H03K19/094
CPC classification number: G09G3/3674 , G02F1/13306 , G09G2310/0264 , G09G2310/0286 , G09G2310/0294 , G11C19/28 , H03K19/09425
Abstract: A scanning driving circuit includes a scanning-level-signal-generation module and a scanning-signal-output-module. The scanning-level-signal-generation module is configured to input an (N−1)th stage scanning signal, an (N+1)th stage scanning signal, and a reset signal, generate a scanning level signal based on the (N−1)th stage scanning signal, the (N+1)th stage scanning signal, and the reset signal, and hold the scanning level signal. The scanning-signal-output-module, connected to the scanning-level-signal-generation module, is configured to input a clock signal, and configured to output a scanning signal based in the scanning level signal and the clock signal.
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Patent Agency Ranking
公开(公告)号：US20180182299A1
公开(公告)日：2018-06-28
申请号：US15304497
申请日：2016-09-18
Inventor： Yafeng LI
IPC: G09G3/3266 , G09G3/36
CPC classification number: G09G3/3266 , G09G3/20 , G09G3/3674 , G09G2310/0267 , G09G2310/0283 , G09G2310/0286 , G11C19/28
Abstract: The present disclosure provides a scanning drive circuit and a flat display device, the scanning drive circuit includes a plurality of cascaded scanning driving units, each scanning driving unit includes a forward-reverse scanning circuit used to control the forward scan and the reverse scan; a input circuit used to charge the pull-up and pull-down control signal point; a charge compensating circuit used to compensating charge the pull-up and pull-down control signal point; a output circuit generating the scanning driving signal to the present scanning line driving the pixel unit.
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公开(公告)号：US20170168347A1
公开(公告)日：2017-06-15
申请号：US14889207
申请日：2015-08-12
Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd. , Wuhan China Star Optoelectronics Technology Co., Ltd.
Inventor： Yafeng LI
IPC: G02F1/1335 , G02F1/1343 , G02F1/1339 , G02F1/1362 , G02F1/1368 , G02F1/1333
CPC classification number: G02F1/133512 , G02F1/133345 , G02F1/13394 , G02F1/134309 , G02F1/136209 , G02F1/136227 , G02F1/1368 , G02F2001/13396 , G02F2001/13398 , G02F2001/136222 , G02F2201/121 , G02F2201/123 , G02F2201/40 , G02F2202/104
Abstract: An array substrate for a liquid crystal display panel is disclosed. The array substrate includes a first substrate, a Lower Temperature Polycrystal Silicon (LTPS) Thin-Film-Transistor (TFT) disposed on the first substrate, a color photoresist layer disposed on the LTPS TFT, and multiple photo spacers disposed above the color photoresist layer. A liquid crystal display panel including the array substrate and a second substrate disposed oppositely to the array substrate is also disclosed. The present invention utilizes the second substrate to be aligned with the LTPS TFT array substrate in order to form the liquid crystal display panel. Because the second substrate is a bare substrate (without a pattern), when the second substrate is aligned with the array substrate, the alignment precision is not under consideration. Accordingly, apertures ratios of the liquid crystal display panel do not have difference.
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公开(公告)号：US20170124970A1
公开(公告)日：2017-05-04
申请号：US15012787
申请日：2016-02-01
IPC: G09G3/36 , H03K17/687
CPC classification number: G09G3/3648 , G09G3/3677 , G09G2300/0408 , G09G2310/08 , H03K17/6871
Abstract: The disclosure discloses a GOA circuit based on the LTPS, including a modulation circuit; a charging circuit; an input signal terminal and an output signal terminal. The modulation circuit and the charging circuit are connected to the input signal terminal and the output signal terminal to make the modulation circuit and the charging circuit in parallel connection, and the charging circuit is used to charge the output scanning signal during the mutation process to increase the mutation speed of the output scanning signal. Wherein the charging circuit is a switch including a control terminal, a first terminal, and a second terminal; the input signal terminal is connected to the first terminal of the charging circuit. The output signal terminal is connected to the second terminal and the control terminal of the charging circuit separately. A display apparatus including the GOA circuit based on the LTPS is also provided.
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公开(公告)号：US20240038113A1
公开(公告)日：2024-02-01
申请号：US17613064
申请日：2021-09-29
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0297 , G09G2310/08
Abstract: The present application discloses a display panel and a display device. The display panel includes a plurality of multiplexing drive modules, a plurality of drive branches and M drive buses. By electrically connecting one drive bus to N drive branches, the number of used drive buses can be reduced, thereby reducing the number of output channels of a drive signal source. Sine the number of used drive buses is reduced, the multiplexing drive modules can complete transmission of a frame of data signals using a less number of times of time-divisional parts for switching on transistors.
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公开(公告)号：US20210405480A1
公开(公告)日：2021-12-30
申请号：US16764419
申请日：2020-01-09
IPC: G02F1/1362 , G02F1/1335 , G02F1/1343 , G02F1/1345 , G02F1/133 , G02F1/1333 , G09G3/00 , G09G3/36
Abstract: The present application provides a liquid crystal display panel and a display device. Invalid pixels of the liquid crystal display panel include a test pixel. In this structure, when no tests are required, the test pixel is in an off state, and there is no voltage difference between a pixel electrode and a common electrode to cause rotation of liquid crystals. When a test is required, the test pixel is in an on state, and the pixel electrode is disconnected from the common electrode to cause a voltage difference, so that the liquid crystals are normally rotated.
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