SOUND PRODUCTION DEVICE, DISPLAY SYSTEM, AND SOUND PRODUCTION METHOD

    公开(公告)号:US20200245090A1

    公开(公告)日:2020-07-30

    申请号:US16547069

    申请日:2019-08-21

    Abstract: A sound production device, a display system, and a sound production method for a sound production device. The sound production device includes ultrasonic transducers, a sounding control unit, and a motion unit. The ultrasonic transducers can constitute at least one sounding unit, each of the sounding units includes two ultrasonic transducers, and one ultrasonic transducer in each sounding unit emits a first ultrasonic wave, and the other ultrasonic transducer emits a second ultrasonic wave. The sounding control unit is configured to determine a target direction and output a direction command to the motion unit according to the target direction. The motion unit is configured to adjust a sounding direction of each ultrasonic transducer according to the direction command, such that two ultrasonic transducers in each sounding unit emit sound toward the target direction to generate a difference frequency sound wave within an audible frequency range in a target area.

    POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE
    92.
    发明申请

    公开(公告)号:US20200241357A1

    公开(公告)日:2020-07-30

    申请号:US15770935

    申请日:2017-09-20

    Inventor: Zhi LIU

    Abstract: The present disclosure discloses a polarizer and a liquid crystal display device, comprising: a first protective layer (1); a polarizing layer (2), wherein the first protective layer is located on one layer surface of the polarizing layer; and a second protective layer (3) located on another layer surface of the polarizing layer; wherein at least one of the first protective layer (1) and the second protective layer (3) has a porous structure.

    LED LIGHT STRIP AND BACKLIGHT MODULE HAVING THE SAME

    公开(公告)号:US20200241196A1

    公开(公告)日:2020-07-30

    申请号:US15768898

    申请日:2017-09-30

    Abstract: The present disclosure provides an LED light strip and a backlight module having the same. The LED light strip includes a circuit board; the circuit board has a board body and a support structure disposed on a surface of the board body; a plurality of LED light emitting elements are disposed on the support structure, the plurality of the LED light emitting elements are arranged in a plurality of rows and face to a first direction parallel to the board body; the arrangement direction of each row of the LED light emitting elements is a second direction that is parallel to the board body and perpendicular to the first direction; and the orthographic projections of the LED light emitting elements on a plane that is parallel to the second direction and perpendicular to the first direction are staggered from each other.

    Display device and display driving method thereof

    公开(公告)号:US10726804B2

    公开(公告)日:2020-07-28

    申请号:US16241384

    申请日:2019-01-07

    Abstract: A display device and a display driving method thereof are disclosed. The method includes: acquiring a grayscale of each pixel in a pixel matrix of a to-be-output image of the display device, wherein the pixel matrix comprises a plurality of pixels in a plurality of pixel rows, and each pixel row comprises multiple pixels; determining a refresh type and a refresh rate for the to-be-output image according to the grayscale of each pixel in the pixel matrix, wherein the refresh type comprises a single-frequency refresh and a multi-frequency refresh; and refreshing pixel voltages of the pixel matrix at a single determined refresh rate under the single-frequency refresh, or refreshing the pixel voltages of the pixel matrix at a plurality of determined refresh rates under the multi-frequency refresh.

    SHIFT REGISTER UNIT, GATE DRIVE CIRCUIT AND DRIVING METHOD THEREOF

    公开(公告)号:US20200227127A1

    公开(公告)日:2020-07-16

    申请号:US16574494

    申请日:2019-09-18

    Abstract: The present disclosure discloses a shift register unit, a gate drive circuit, and a driving method thereof, and relates to the field of display technologies. The shift register unit includes an input sub-circuit, an output control sub-circuit, and an output sub-circuit. The input sub-circuit is coupled to a first node and a first voltage terminal, and is configured to output a first voltage signal to the first node in response to an input control signal. The output control sub-circuit is coupled to the first node, a second node, and a clock signal terminal, and is configured to output an output control signal to the second node in response to the first voltage signal and a clock signal. The output sub-circuit is coupled to the second node, a DC voltage terminal, and an output terminal, and is configured to output a DC voltage signal to the output terminal under the control of the output control signal.

    Pixel compensation circuit and method of driving the same, display panel, and display device

    公开(公告)号:US10714005B2

    公开(公告)日:2020-07-14

    申请号:US16048861

    申请日:2018-07-30

    Abstract: The present disclosure relates to a pixel compensation circuit and a method of driving the same, a display panel, and a display device. A pixel compensation circuit includes: a control sub-circuit, a write sub-circuit, a driving sub-circuit, and a light emitting sub-circuit, wherein the write sub-circuit is configured to, under the control of a scan signal terminal, transmit a data signal at a data signal terminal to the control sub-circuit and transmit a signal at a reference voltage signal terminal to the control sub-circuit; the control sub-circuit is configured to, under the control of a power control signal terminal, transmit a signal at a first power terminal to the driving sub-circuit, and under the combined action of a conduction control signal terminal and the power control signal terminal, control the driving sub-circuit to perform threshold compensation, and control the driving sub-circuit to generate a driving current to drive the light emitting sub-circuit to emit light.

    Display substrate and OLED display device

    公开(公告)号:US10700302B2

    公开(公告)日:2020-06-30

    申请号:US15580340

    申请日:2017-05-10

    Inventor: Zhaozhe Xu Ji Li

    Abstract: A display substrate and an OLED display device, the display substrate including a water absorbing structure disposed on the display substrate that is configured to be capable of absorbing moisture in the display substrate. In the embodiments of the present invention, by providing a water absorbing structure in the display substrate, it is possible to protect the organic luminescent unit from moisture released in the process of manufacturing and operating the display substrate, enhance the performance of the OLED display device and prolong the service life of the OLED display device.

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