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    TEXTURE DETECTION DEVICE AND METHOD OF DETECTING A TEXTURE USING THE SAME
    71.
    发明申请
    TEXTURE DETECTION DEVICE AND METHOD OF DETECTING A TEXTURE USING THE SAME 审中-公开

    公开(公告)号：US20190272408A1

    公开(公告)日：2019-09-05

    申请号：US16320348

    申请日：2018-01-30

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xiaoliang DING ,  Haisheng WANG ,  Chun Wei WU ,  Yingming LIU ,  Rui XU ,  Wei LIU

    IPC: G06K9/00

    Abstract: A method of detecting a texture includes: in each of a plurality of time periods included in a texture detection phase, forming a light-shielding region in a light transmitting hole forming layer, wherein the light-shielding region only includes a part of a plurality of light transmitting holes, and imaging regions of a texture to be detected on a photosensitive sensing layer through the light transmitting hole forming layer do not overlap; in different time periods of the plurality of time periods, positions of parts of the plurality of light transmitting holes included in the light-shielding regions are different; and splicing images of the texture to be detected formed on the photosensitive sensing layer in the plurality of time periods together.

    CURRENT AMPLIFICATION CIRCUITRY AND DRIVING METHOD THEREOF, AND FINGERPRINT DETECTION DEVICE
    73.
    发明申请
    CURRENT AMPLIFICATION CIRCUITRY AND DRIVING METHOD THEREOF, AND FINGERPRINT DETECTION DEVICE 审中-公开

    公开(公告)号：US20190238103A1

    公开(公告)日：2019-08-01

    申请号：US16332246

    申请日：2018-05-31

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xiaoliang DING ,  Haisheng WANG ,  Yingming LIU ,  Xueyou CAO ,  Ping ZHANG ,  Yanling HAN

    IPC: H03F3/08 ,  G06K9/00

    Abstract: Embodiments of the present disclosure provide a current amplification circuitry and a driving method thereof, and a fingerprint detection device. The current amplification circuitry includes a voltage control circuit, a plurality of first current amplification circuits, and a second current amplification circuit. The voltage control circuit provides a voltage control signal to the plurality of first current amplification circuits. The first current amplification circuit includes a current mirror, and the current mirror is coupled to a voltage input terminal, the voltage control circuit, and a first input terminal of the second current amplification circuit. The first current amplification circuit amplifies a current from the voltage input terminal according to the voltage control signal provided by the voltage control circuit, and provides the amplified current to the second current amplification circuit. The second current amplification circuit is coupled to the voltage input terminal via a second input terminal and amplifies the amplified current.

    Touch Substrate and Driving Method Thereof, Display Panel and Driving Method Thereof
    75.
    发明申请
    Touch Substrate and Driving Method Thereof, Display Panel and Driving Method Thereof 审中-公开

    公开(公告)号：US20190187853A1

    公开(公告)日：2019-06-20

    申请号：US16323160

    申请日：2018-03-07

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Xiaoliang DING ,  Haisheng WANG ,  Yingming LIU ,  Pengpeng WANG ,  Yanling HAN

    IPC: G06F3/041 ,  G06F3/044 ,  G06F3/01 ,  G02F1/1333

    CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G06F3/016 ,  G06F3/0416 ,  G06F3/044

    Abstract: A touch substrate, a display panel and driving methods thereof are provided. The touch substrate comprises: a driving layer configured to receive a touch driving signal or a reference signal; a touch layer configured to receive the touch driving signal or a frequency conversion signal and comprising touch sub-electrodes arranged in an array and configured to generate, upon sensing a touch, a touch signal; a control circuit configured to receive the touch signal, and provide, based on the touch signal, the frequency conversion signal to the touch sub-electrode generating the touch signal and the reference signal to the driving layer simultaneously; and a feedback layer contacting the driving layer and the touch layer, respectively, and configured to generate a touch feedback response in an area corresponding to the touch sub-electrode generating the touch signal based on the frequency conversion signal and the reference signal.

    PIXEL DRIVING CIRCUIT AND DRIVING METHOD THEREOF, DISPLAY PANEL AND DISPLAY DEVICE
    78.
    发明申请
    PIXEL DRIVING CIRCUIT AND DRIVING METHOD THEREOF, DISPLAY PANEL AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20180374417A1

    公开(公告)日：2018-12-27

    申请号：US15737255

    申请日：2017-06-19

    Applicant: Boe Technology Group Co., Ltd. ,  Beijing Boe Optoelectronics Technology Co., Ltd.

    Inventor： Shengji YANG ,  Xue DONG ,  Hailin XUE ,  Xiaochuan CHEN ,  Haisheng WANG ,  Weijie ZHAO ,  Yingming LIU

    IPC: G09G3/3233

    Abstract: This disclosure provides a pixel driving circuit, comprising: a driving transistor, a reset sub-circuit, an energy storage sub-circuit, a compensation sub-circuit, a data write sub-circuit and a light emitting sub-circuit. The driving transistor is configured to drive the light emitting sub-circuit to emit light, the reset sub-circuit is configured to reset the energy storage sub-circuit, the energy storage sub-circuit is configured to pre-store a threshold voltage of the driving transistor, the compensation sub-circuit is configured to compensate the threshold voltage of the driving transistor, the data write sub-circuit is configured to write a signal level inputted by the data signal terminal into the third node, and the light emitting sub-circuit is configured to emit light under the driving of the driving transistor. A driving method of the pixel driving circuit and a display panel as well as a display device are further provided.

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