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

    摘要: 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.

    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

    发明人: Rui Liu Wei Sun

    IPC分类号: G09G3/20

    摘要: 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.

    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

    IPC分类号: G09G3/20 G11C19/28

    摘要: 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.

    Gate driving unit, driving method thereof, gate driving circuit and display device

    公开(公告)号:US11114004B2

    公开(公告)日:2021-09-07

    申请号:US16094615

    申请日:2018-03-14

    IPC分类号: G09G3/20

    摘要: The present disclosure provides a gate driving unit, a driving method thereof, a gate driving circuit and a display device. The gate driving unit includes an input resetting module, a storage module, a pull-up node control module, a pull-down node control module and an output module. The gate driving unit further includes a clock signal control module, connected to a first control signal end, a second control signal end, a first reference clock signal end, a second reference clock signal end, a first clock signal end and a second clock signal end, and configured to, under the control of a first control signal from the first control signal end and a second control signal from the second control signal end, output clock signals at a same frequency and in opposite phases to the first clock signal end and the second clock signal end respectively in accordance with a first reference clock signal from the first reference clock signal end and a second reference clock signal from the second reference clock signal.

    Driving circuit, driving method and display apparatus

    公开(公告)号:US11017710B2

    公开(公告)日:2021-05-25

    申请号:US15751405

    申请日:2017-08-09

    IPC分类号: G09G3/20

    摘要: A driving circuit, a driving method and a driving apparatus, wherein the driving circuit includes: a driving signal generation sub-circuit; a plurality of first signal lines, configured to receive the driving signal generated from the driving signal generation sub-circuit; a plurality of second signal lines, configured to output the driving signal to the plurality of pixels in the display panel; a switch sub-circuit, set between the plurality of first signal lines and the plurality of second signal lines, and configured to selectively connect a part of the plurality of second signal lines or the plurality of first signal lines and the plurality of second signal lines; and a control sub-circuit, configured to control turn-on or turn-off of the switch sub-circuit, so that the plurality of pixels of the display panel are driven in a first mode or in a second mode.