Calibration Device and Method for Frequency Point in Touch Screen, Touch Screen and Display Device

    公开(公告)号:US20210072851A1

    公开(公告)日:2021-03-11

    申请号:US16062953

    申请日:2017-09-29

    Abstract: The calibration device is used for automatically calibrating capacitances of a sensing capacitor at various frequency points in the touch screen, and comprising a calibration circuit and a comparison circuit. The calibration circuit is connected with the sensing capacitor and the comparison circuit to transmit a calibration excitation signal to the touch screen to start calibration operations at the various frequency points, and calibrate the sensing capacitor in the touch screen according to a comparison result from the comparison circuit; the comparison circuit is used for comparing a preset capacitance with the capacitance of the sensing capacitor at a current frequency point in the touch screen to obtain the comparison result, and feeding the comparison result back to the calibration circuit, and the calibration circuit calibrates the capacitance of the sensing capacitor to a capacitance that matches with the current frequency point.

    DISPLAY DEVICE AND DRIVING METHOD THEREOF
    44.
    发明申请

    公开(公告)号:US20190228712A1

    公开(公告)日:2019-07-25

    申请号:US16325562

    申请日:2018-07-06

    Abstract: A display device includes a first gate driver configured to sequentially supply gate scan signals to gate lines in a first subset in response to a first timing signal, a second gate driver configured to sequentially supply gate scan signals to gate lines in a second subset in response to a second timing signal, the first subset of gate lines and the second subset of gate lines are alternately arranged, and a signal controller configured to supply respectively the first and second timing signals that are synchronized with each other to the first and second gate drivers in response to receiving an indication of a first resolution mode, and further configured to supply respectively the first and second timing signals that are time-shifted relative to each other to the first and second gate drivers in response to receiving an indication of a second resolution mode.

    DISPLAY PANEL, DISPLAY DEVICE AND DRIVING METHOD

    公开(公告)号:US20250148950A1

    公开(公告)日:2025-05-08

    申请号:US19013269

    申请日:2025-01-08

    Abstract: A display panel, a display device and a driving method. The display panel includes a display region and a peripheral region. The display region includes a subpixel unit array having a plurality of rows and a plurality of columns of subpixel units, and the peripheral region includes a gate drive circuit. The display region further includes a plurality of gate lines and a plurality of data lines. The gate drive circuit includes a plurality of shift register units, and the plurality of gate lines are electrically connected with the plurality of shift register units. The gate drive circuit includes two shift-register-unit scanning groups, in the shift-register-unit scanning groups, a (k+1)th shift register unit and a (k)th shift register unit form one shift register unit group.

    DISPLAY DEVICE, SOUND-EMITTING CONTROLLING METHOD, AND SOUND-EMITTING CONTROLLING DEVICE

    公开(公告)号:US20250142258A1

    公开(公告)日:2025-05-01

    申请号:US19008548

    申请日:2025-01-02

    Abstract: The present disclosure provides a display device, a sound-emitting control method, and a sound-emitting control device. The device includes: a display screen which includes a first display region, a middle display region, and a second display region; a plurality of sound-emitting units, which include: a plurality of first sound-emitting units, a plurality of second sound-emitting units and a plurality of third sound-emitting units, the orthographic projection of the first sound-emitting units on the plane of the display screen is located in the first display region, the orthographic projection of the second sound-emitting units on the plane of the display screen is located in the second display region, and the orthographic projection of the third sound-emitting units on the plane of the display screen is located in the third display region; the plurality of first sound-emitting units and the plurality of second sound-emitting units respectively include a sound-emitting unit which emits sounds at a first frequency band, a sound-emitting unit which emits sounds at a second frequency band, and a sound-emitting unit which emits sounds at a third frequency band; the first, second, and third frequency bands increase in turn; and all of the plurality of third sound-emitting units are the sound-emitting units emitting sound in the second frequency band.

    Display Panel and Display Device
    50.
    发明申请

    公开(公告)号:US20250098507A1

    公开(公告)日:2025-03-20

    申请号:US18292939

    申请日:2023-02-20

    Abstract: The present disclosure provides a display panel and a display device, pertains to the field of display technologies. The present disclosure provides a display panel at least including a display region. The display panel includes a base substrate and a plurality of sub-pixels disposed on the base substrate, a sub-pixel at least includes a light emitting device, and the light emitting device is located in the display region. The light emitting device includes a first electrode, a light emitting layer, and a second electrode provided in sequence in a direction facing away from a base substrate. The display panel further includes a heat conduction structure disposed on a side of the first electrode facing away from the light emitting layer, and orthographic projections of the heat conduction structure and the first electrode on the base substrate are at least partially overlapped with each other.

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