Touch detection method, touch detection device, and touch display device

    公开(公告)号:US11543915B2

    公开(公告)日:2023-01-03

    申请号:US17324259

    申请日:2021-05-19

    Abstract: A touch detection method includes: scanning a reference scan region according to a first control protocol to collect initial touch signals including an initial trigger signal; determining position information of a starting point according to the initial touch signals; reporting the position information of the starting point; switching the first control protocol to a second control protocol; and performing following operations at least once: determining a current target scan region, scanning the current target scan region according to the second control protocol to collect current touch signals including a current trigger signal, determining position information of a touch point according to the current touch signals, and reporting the position information of the touch point. An area of the current target scan region is less than an area of the reference scan region.

    Pixel structure, method of driving the same and display device

    公开(公告)号:US11508325B2

    公开(公告)日:2022-11-22

    申请号:US16957659

    申请日:2019-12-26

    Abstract: The present disclosure provides a pixel structure, a method of driving the same and a display device. The pixel structure includes gate lines, data lines, and a plurality of subpixels arranged in an array form. Subpixels in each row correspond to two gate lines. Each data line corresponds to the subpixels in two adjacent columns, and each data line is arranged between the two adjacent columns of subpixels. Among the subpixels in each row, three adjacent subpixels are in different colors and forms a complete pixel unit. Among the subpixels in each column, three adjacent subpixels are in different colors and forms the complete pixel unit. Among the subpixels in two adjacent columns, the subpixels in two adjacent rows form two complete pixel units each including three subpixels, and two of the three subpixels are shared by the two pixel unit.

    Driving chip, method of driving display panel, driving device, and display device

    公开(公告)号:US11361700B2

    公开(公告)日:2022-06-14

    申请号:US16489956

    申请日:2019-01-03

    Inventor: Rui Liu Wei Sun

    Abstract: A driving chip for a display panel is provided. The display panel includes a plurality of subpixels arranged at a display region, the display region is provided with a boundary extended by a non-straight line, and the plurality of subpixels includes first subpixels separated from the boundary by a distance substantially smaller than a predetermined threshold and second subpixels other than the first subpixels. The driving chip includes: an adjustment circuit configured to, when the display panel is in a predetermined display mode, adjust a first grayscale value of at least a part of the first subpixels in original image data into a second grayscale value substantially smaller than the first grayscale value; a driving circuit configured to drive the at least a part of first subpixels in accordance with the second grayscale value to display an image.

    Source driving circuit, driving method and display device

    公开(公告)号:US11205372B2

    公开(公告)日:2021-12-21

    申请号:US16960574

    申请日:2019-09-23

    Abstract: A source driving circuit includes a buffer amplifier configured to generate a driving signal from an original driving signal. The buffer amplifier includes a first amplifier and a second amplifier. A high-level terminal of the first amplifier is coupled to the first power signal terminal, a low-level terminal is coupled to the second power signal terminal, and an output terminal is configured to output a positive polarity driving signal. A high-level terminal of the second amplifier is coupled to the third power signal terminal, a low-level terminal is coupled to the fourth power signal terminal, and an output terminal is configured to output a negative polarity driving signal. The voltage of the second power signal terminal is less than the voltage of the third power signal terminal.

    Gate drive circuit and display panel

    公开(公告)号:US11170696B2

    公开(公告)日:2021-11-09

    申请号:US16321485

    申请日:2018-05-11

    Abstract: A gate drive circuit and a display panel are provided. The gate drive circuit controls, by adding a control module, the potential at a key node of an output module in a touch-control phase, that is, outputting a low-level signal of a signal switching end to a first node of the output module of the current-stage shift register in the touch-control phase, so as to stabilise the potential of the key node, i.e. the first node in the touch-control phase, thereby avoiding the case where the potential at the key node is in a floating state and thus is capacitively coupled and deviates from a stable potential; and a transition to a display stage before the touch-control state ends is made, and a high-level signal of the signal switching end is output to the first node, so as to pull up the potential at the first node.

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