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46 条记录 (耗时 0.025 秒)

    Display panel, method for driving the same, and display apparatus
    32.
    发明授权
    Display panel, method for driving the same, and display apparatus 有权

    公开(公告)号：US11769452B2

    公开(公告)日：2023-09-26

    申请号：US17859991

    申请日：2022-07-07

    申请人： Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

    发明人： Jian Kuang ,  Mengmeng Zhang ,  Xingyao Zhou

    IPC分类号： G09G3/3233 ,  G09G3/20

    CPC分类号： G09G3/3233 ,  G09G3/2007 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247

    摘要： A display panel, a method for driving the same, and a display apparatus are provided. The display panel includes data signal lines and pixel circuits. The pixel circuit includes a driving module and a data voltage writing module. The data voltage writing module is connected between the data signal line and the input terminal of the driving module. The display panel has first and second phases when displaying one frame of an image. The first phase includes a data writing phase and a light-emitting phase. The second phase includes an adjusting phase and a light-emitting phase. During the data writing phase, the data voltage writing module is turned on, and the data signal line transmits the data voltage. During the adjusting phase, the data voltage writing module is turned on, and the data signal line transmits the adjusting voltage corresponding to the data voltage transmitted during the data writing phase.

    Driving method of display device and driving device
    33.
    发明授权
    Driving method of display device and driving device 有权

    公开(公告)号：US11417259B2

    公开(公告)日：2022-08-16

    申请号：US17229876

    申请日：2021-04-14

    申请人： WUHAN TIANMA MICRO-ELECTRONICS CO., LTD ,  WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH

    发明人： Shuai Yang ,  Xingyao Zhou ,  Yue Li ,  Mengmeng Zhang

    IPC分类号： G09G3/20 ,  G09G3/3233

    摘要： Disclosed are a driving method of a display device and a driving device is described. The driving method of a display panel includes that in response to determining that the display device enters a low power consumption state, controlling a light intensity detection component to detect in real time whether the display device is in a strong light environment; in a case where the display device is in the strong light environment, controlling a driver chip to adjust a picture refresh frequency to a first frequency; in a case where the display device is not in the strong light environment, determining a current gray scale of the display device according to a latest user setting instruction, determining an optimal refresh frequency according to the current gray scale and a corresponding relationship between a preset gray scale and the optimal refresh frequency.

    Output control device, output control circuit and display panel
    34.
    发明授权
    Output control device, output control circuit and display panel 有权

    公开(公告)号：US11410609B2

    公开(公告)日：2022-08-09

    申请号：US16997937

    申请日：2020-08-20

    申请人： Wuhan Tianma Micro-Electronics Co., Ltd. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

    发明人： Mengmeng Zhang ,  Yana Gao ,  Xingyao Zhou

    IPC分类号： G09G3/3266 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3208

    摘要： Provided is an output control device for providing control signals for a pixel circuit, which includes: a first output device configured to output a first control signal for controlling writing of a data signal into the pixel circuit, a second output device configured to output a second control signal for controlling a light emitting element to emit light, and a third output device configured to output a third control signal for controlling resetting of the light emitting element. A frequency of the third control signal is higher than a frequency of the first control signal. In a first period, the second control signal is an active level signal and the third control signal is an inactive level signal. In a second period, the second control signal is an inactive level signal and the third control signal is an active level signal.

    Display panel and display device
    35.
    发明授权
    Display panel and display device 有权

    公开(公告)号：US11900863B2

    公开(公告)日：2024-02-13

    申请号：US17929825

    申请日：2022-09-06

    申请人： Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

    发明人： Mengjia He ,  Yana Gao ,  Zhi Liu ,  Yuying Cai ,  Xingyao Zhou

    IPC分类号： G09G3/32

    CPC分类号： G09G3/32 ,  G09G2330/021 ,  G09G2330/04

    摘要： A display panel and a display device, including a substrate, a circuit layer located at a side of the substrate, and a top light-shielding layer configured to receive a voltage signal. The circuit layer includes a light-emitting shift circuit, including a first output module and a control module. The first output module is electrically connected to a first node, a first fixed potential signal line, and a light-emitting control signal line and is configured to, in response to a voltage of the first node, transmit a light-emitting enable voltage provided by the first fixed-potential signal line to the light-emitting control signal line. The control module is connected to the first node and includes a control transistor. The top light-shielding layer is located at a side of the control transistor. In a direction perpendicular to the substrate, the top light-shielding layer overlaps with a channel of the control transistor.

    Display panel, driving method thereof and display device
    37.
    发明授权
    Display panel, driving method thereof and display device 有权

    公开(公告)号：US11367393B2

    公开(公告)日：2022-06-21

    申请号：US17011944

    申请日：2020-09-03

    申请人： Wuhan Tianma Micro-Electronics Co., Ltd. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

    发明人： Gao Yana ,  Xinzhao Liu ,  Yue Li ,  Xingyao Zhou ,  Minfu Zhang

    IPC分类号： G09G3/3233

    摘要： Provided are a display panel, a driving method thereof and a display device. The display panel includes a substrate, multiple sub-pixels located on one side of the substrate, and at least one signal conversion circuit. Each sub-pixel includes a pixel driving circuit and a light-emitting element. The pixel driving circuit includes an initialization transistor and a driving transistor. A first electrode of the initialization transistor is electrically connected to a gate of the driving transistor. The signal conversion circuit may convert a received initialization signal to a first initialization signal or convert the initialization signal to a second initialization signal according to a received data control signal, and generate an output of the conversion to the second electrode of the initialization transistor. This can avoid an unstable gate voltage of the driving transistor caused by a leakage current, further improve the display effect.

    DISPLAY PANEL, METHOD FOR DRIVING THE SAME, AND DISPLAY DEVICE
    39.
    发明公开
    DISPLAY PANEL, METHOD FOR DRIVING THE SAME, AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20230298526A1

    公开(公告)日：2023-09-21

    申请号：US18323261

    申请日：2023-05-24

    申请人： WUHAN TIANMA MICRO-ELECTRONICS CO., LTD. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

    发明人： Mengmeng Zhang ,  Gaojun Huang ,  Xingyao Zhou ,  Yue Li

    IPC分类号： G09G3/3233

    CPC分类号： G09G3/3233 ,  G09G2310/0262 ,  G09G2310/0278 ,  G09G2310/061

    摘要： Provided are display panel, method for driving same, and display device. Display panel includes pixel circuit and cascaded first shift circuits. Pixel circuit includes drive transistor and adjusting module electrically connected to first scan line, adjusting line and first electrode of drive transistor. First shift circuit is electrically connected to first scan line and includes first control module and first output module. First control module is electrically connected to first type-A clock line, first shift control line and first control node, and configured to write first shift control signal into first control node in response to first type-A clock signal from first type-A clock line. First output module is electrically connected to first control node, first type-B clock line and first scan line, and configured to write first type-B clock signal into first scan line in response to signal of first control node.

    Pixel driving circuit, driving method, display panel and display device
    40.
    发明授权
    Pixel driving circuit, driving method, display panel and display device 有权

    公开(公告)号：US11620950B2

    公开(公告)日：2023-04-04

    申请号：US17405643

    申请日：2021-08-18

    申请人： Wuhan Tianma Micro-Electronics Co., Ltd. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

    发明人： Shuai Yang ,  Xingyao Zhou ,  Yue Li ,  Mengmeng Zhang

    IPC分类号： G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

    摘要： A pixel driving circuit, a driving method, a display panel and a display device are provided. The pixel driving circuit include a driving module, configured to drive a light-emitting element to emit light, wherein a control terminal of the driving module is electrically connected to a first node, and a first terminal is electrically connected to a second node; a data writing module, configured to write data signals, wherein a control terminal of the data writing module is electrically connected with a first scan signal line, and a first terminal is electrically connected with a data signal terminal; and a coupling module, configured to couple the data signals to the first terminal of the driving module, wherein a first terminal of the coupling module is electrically connected to a second terminal of the data writing module, and a second terminal is electrically connected to the second node.