Display device, power supply circuit and power supply method

    公开(公告)号:US11289020B2

    公开(公告)日:2022-03-29

    申请号:US16064612

    申请日:2018-01-10

    Inventor: Xinbin Han Xin Wang

    Abstract: A display device, a power supply circuit and a power supply method are provided. The power supply circuit includes a control sub-circuit and a delay sub-circuit. The control sub-circuit is configured to provide a first preset voltage and a second preset voltage and output the first preset voltage to a first power supply terminal; and delay sub-circuit is configured to delay the second preset voltage and output the delayed second preset voltage to a second power supply terminal.

    Gamma correction method and device, display device, and computer storage medium

    公开(公告)号:US11170708B2

    公开(公告)日:2021-11-09

    申请号:US16650513

    申请日:2019-07-09

    Abstract: The present disclosure provides a gamma correcting method and device, a display device, and a computer storage medium, which belong to the field of display technologies. The method includes: acquiring measurement data of a first display panel, wherein the measurement data includes m display brightness levels to be compensated and m sets of compensation parameters corresponding to the m display brightness levels, where m is a positive integer; and compensating a second display panel at a corresponding display brightness level with the m sets of compensation parameters respectively, wherein the second display panel and the first display panel have same structure and material.

    Circuit board, electronic component and display apparatus

    公开(公告)号:US10779410B2

    公开(公告)日:2020-09-15

    申请号:US16329005

    申请日:2018-01-19

    Abstract: The present disclosure provides a circuit board, an electrical component and a display apparatus. The circuit board includes a wiring pad which is divided into a plurality of sub-pads by bubble discharge paths, the bubble discharge paths intersect at a first point which is a geometric center of the wiring pad. By configuring bubble discharge paths with a shape of a straight line and as being intersected at the geometric center point of the wiring pad, the circuit board can discharge gas bubbles, generated when the wiring pad is soldered to a wiring terminal of other circuit board, from the geometric center point of the wiring pad to the edge thereof via the bubble discharge paths. Thus gas bubbles can be eliminated or reduced between the wiring pad and the wiring terminal when soldering, connection between the wiring pad and the wiring terminal can be more secure.

    GAMMA CORRECTION METHOD AND DEVICE, DISPLAY DEVICE, AND COMPUTER STORAGE MEDIUM

    公开(公告)号:US20200286423A1

    公开(公告)日:2020-09-10

    申请号:US16650513

    申请日:2019-07-09

    Abstract: The present disclosure provides a gamma correcting method and device, a display device, and a computer storage medium, which belong to the field of display technologies. The method includes: acquiring measurement data of a first display panel, wherein the measurement data includes m display brightness levels to be compensated and m sets of compensation parameters corresponding to the m display brightness levels, where m is a positive integer; and compensating a second display panel at a corresponding display brightness level with the m sets of compensation parameters respectively, wherein the second display panel and the first display panel have same structure and material.

    Pixel circuit, driving method thereof, and display device

    公开(公告)号:US10540926B2

    公开(公告)日:2020-01-21

    申请号:US16095892

    申请日:2018-04-17

    Abstract: A pixel circuit includes a light-emitting device, a reset circuit, a write circuit, a compensation circuit, a light emission control circuit, and a drive circuit. The compensation circuit is configured to selectively transfer an uncompensated reference voltage or a compensated reference voltage to a third node, the compensated reference voltage being determined by the uncompensated reference voltage and a compensation voltage, the compensation voltage being related to a rated value of a power supply voltage. The light emission control circuit is configured to transfer a voltage at the third node to a first node to cause a change in voltage at the second node. The drive circuit is configured to control a magnitude of a drive current flowing through the light-emitting device based on the voltage at the second node and the power supply voltage.

    WELL CURB DEVICE AND METHOD FOR CONTROLLING THE SAME

    公开(公告)号:US20190203447A1

    公开(公告)日:2019-07-04

    申请号:US16038400

    申请日:2018-07-18

    Abstract: There are provided a well curb device and a method for controlling the same. The well curb device includes: a well curb, a well cover sensor, a light sensing component and an audible alertor. The well curb includes a placing portion for placing a well cover. The well cover sensor is disposed on the well curb, and is configured to detect whether a well cover is placed in the placing portion. The light sensing component is configured to trigger the audible alertor to issue an audio alarm of a specified decibel, when detecting that the light intensity around the well curb is greater than the specified value, thereby improving the safety of the well curb device.

    Backlight module, method for operating the same and display device

    公开(公告)号:US10288232B2

    公开(公告)日:2019-05-14

    申请号:US15737532

    申请日:2017-05-24

    Inventor: Xin Wang Jianhua Du

    Abstract: The present disclosure provides a backlight module, a method for operating the same and a display device including the backlight module. The backlight module comprises a light guide plate, a collimated light source and a shading plate between the light guide plate and the collimated light source. The light guide plate comprises a transparent main body and a plurality of diffusion dots formed on the transparent main body. The shading plate comprises a plurality of shading regions corresponding to the plurality of diffusion dots of the light guide plate. The collimated light source generates collimated light vertically irradiating on the shading plate.

    Method and apparatus for controlling brightness of organic light emitting diode screen

    公开(公告)号:US10176753B2

    公开(公告)日:2019-01-08

    申请号:US15580650

    申请日:2017-06-19

    Inventor: Xin Wang

    Abstract: Embodiments of the present disclosure provide a method and apparatus for controlling brightness of an OLED screen. The method comprises: obtaining brightness of a first sub-pixel in an M-th column of pixels; obtaining brightness of a second sub-pixel; and increasing brightness of the first sub-pixel based on a difference in brightness between the second sub-pixel and the first sub-pixel, if brightness of the second sub-pixel is greater than that of the first sub-pixel.

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