PIXEL DRIVING CIRCUIT AND LIQUID CRYSTAL DISPLAY CIRCUIT WITH THE SAME

    公开(公告)号:US20190318699A1

    公开(公告)日:2019-10-17

    申请号:US16074453

    申请日:2018-04-27

    Inventor: Qingcheng ZUO

    Abstract: A pixel driving circuit is used to drive a pixel structure having a plurality of pixel units. The pixel driving circuit includes data lines; selecting circuits having a data input terminal connected to one of the data lines, a first output terminal connected to a red subpixel unit of a pixel unit, a second output terminal connected to a green subpixel unit of the pixel unit, and a third output terminal connected to a blue subpixel unit of the pixel unit; scanning lines; voltage-variation circuits having an input terminal to receive the scanning signal, an output terminal connected to one of scanning lines. Each of the voltage-variation circuits is selectively operable in a voltage-regulated state or a conduct state.

    METHOD FOR IMPROVING THE DISPLAY STATE OF LIQUID CRYSTAL PANEL, LIQUID CRYSTAL PANEL, AND LIQUID CRYSTAL DISPLAY

    公开(公告)号:US20190137803A1

    公开(公告)日:2019-05-09

    申请号:US15736638

    申请日:2017-09-21

    Abstract: The present disclosure discloses a method for improving the display state of a liquid crystal panel, the method including: obtaining a storage capacitor value of a far-end sub-pixel unit, an intermediate sub-pixel unit, and a near-end sub-pixel unit on a gate signal line of an array substrate of the liquid crystal panel; adjusting the storage capacitance value so that the voltage drop caused by the capacitive coupling effect of the far-end sub-pixel unit and the near-end sub-pixel unit is the same as the voltage drop generated by the capacitive coupling effect of the intermediate sub-pixel unit; based on the adjusted storage capacitor values corresponding to adjust the storage capacitance value on the other gate signal lines. Through the above-mentioned way, the brightness of the LCD panel frame is improved or the whitening phenomenon on both sides of the module is improved, improving the display quality of the liquid crystal panel.

    CONTROLLING METHOD OF DECREASING POWER CONSUMPTION OF LIQUID CRYSTAL DISPLAY MODULE

    公开(公告)号:US20170294167A1

    公开(公告)日:2017-10-12

    申请号:US15302171

    申请日:2016-06-16

    CPC classification number: G09G3/36 G09G2330/021 G09G2330/023

    Abstract: A controlling method of decreasing a power consumption of a liquid crystal display module is described. The method provides steps of: increasing a voltage loading between two ends of liquid crystals and decreasing a back light driving current when a video image enable signal is within an image disable region, so as to keep the liquid crystal display module having a constant brightness. According to the controlling method, the voltage loading between two ends of the liquid crystal is increased when the video image enable signal is in the image disable region, so as to raise a light transmittance as the liquid crystal pixel works, raise a display brightness of the liquid crystal panel, decrease the back light driving current, reduce a back light brightness and ensure an entire display effect being constant when the video image enable signal is in the image disable region.

    LOW POWER CONSUMPTION INTELLIGENT DISPLAY DEVICE AND METHOD FOR DISPLAY THEREOF

    公开(公告)号:US20190027078A1

    公开(公告)日:2019-01-24

    申请号:US15571006

    申请日:2017-10-19

    Inventor: Qingcheng ZUO

    Abstract: The present application relates to a low power consumption intelligent display device and a method for display thereof. The display device includes a touch display module, a driving module and a system module. The driving module includes a display driving module and a touch driving module. When the touch driving module detects the occurrence of a finger touch, the coordinate is feedback to the system module, the system module determines the focusing and the non-focusing regions of the human eyes in accordance with the coordinate of the touch; the system module reduces the amount of display data per unit time corresponding to the non-focusing region by the system module when generating the display data in accordance with the display image to be displayed; when the touch driving module detects that no finger touch occurs, the system module normally generates display data in accordance with the display image to be displayed.

    TOUCH DISPLAY PANEL AND TOUCH DISPLAY DEVICE
    29.
    发明申请

    公开(公告)号:US20190004663A1

    公开(公告)日:2019-01-03

    申请号:US15562313

    申请日:2017-07-26

    Abstract: A touch display panel includes touch detection electrodes and fingerprint recognition electrodes that share a common electrode layer. The pixel electrodes function as a drive pixel layer to induce capacitive coupling with respect to the fingerprint recognition electrodes, based on which operations of displaying, touch detection, and fingerprint recognition are carried out in a time sharing manner. The touch display panel requires no integration of separately made fingerprint recognition device and a touch display panel, and fingerprint detection can be realized with an existing layered structure of the touch display panel to thereby effectively save the manufacturing cost of the touch display device and achieve an effect of integrating a fingerprint recognition device and a touch display panel. A touch display device that includes the touch display panel is also provided.

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