Display device and driving method

    公开(公告)号:US12020622B2

    公开(公告)日:2024-06-25

    申请号:US17419458

    申请日:2021-05-19

    发明人: Wenfang Li

    IPC分类号: G09G3/20

    摘要: A display device and a driving method are proposed to obtain the gray value difference data of the display device when the gray value of the display device changes. So, the display device could determine the corresponding compensation data according to the gray value difference of the display device and then the compensation data and the driving data are used to drive the display device. In this way, the driving data are compensated when the display device has a variance of gray value such that the charging operation becomes sufficient to charge the display device. For example, the charging speed becomes faster to allow the display device to reach sufficient luminance such that the issues of color shifts or insufficient luminance could be avoided.

    Logic circuit and display panel
    2.
    发明授权

    公开(公告)号:US11948524B2

    公开(公告)日:2024-04-02

    申请号:US17594025

    申请日:2021-07-23

    发明人: Wenfang Li

    IPC分类号: G09G3/36 H02M1/44 H02M3/156

    摘要: The present application provides a logic circuit and a display panel. One end of a switching control module of the logic circuit is connected in series with a voltage adjusting control module, and another end of the switching control module is connected in series with a switch component of a voltage adjusting module. Also, the switching control module connected in series with the same switch component has at least two different operational currents for a corresponding switch component to have different switching speeds for alleviating the problem of excessive electromagnetic interference (EMI) occurred in a power management chip of existing LCD products.

    GOA driving circuit and display device

    公开(公告)号:US11158273B1

    公开(公告)日:2021-10-26

    申请号:US16617306

    申请日:2019-11-12

    IPC分类号: G09G3/36

    摘要: A gate driver on array (GOA) driving circuit including a power management IC and a level shifter circuit connected in order, wherein the level shifter circuit at least includes a first switch transistor, a second switch transistor, a detection unit, and a clock signal output terminal, the first switch transistor is connected to the second switch transistor, and the clock signal output terminal is configured to connect to the GOA circuit, and wherein the detection unit is connected to the first switch transistor and the second switch transistor respectively, configured to detect power consumption of the first switch transistor and the second switch transistor and feedback a detection result that is configured to control an on/off state of a signal output of the power management IC.

    DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY DEVICE

    公开(公告)号:US20230296935A1

    公开(公告)日:2023-09-21

    申请号:US17297968

    申请日:2021-03-31

    发明人: Wenfang Li

    IPC分类号: G02F1/1333 G09G3/36

    摘要: A display panel and a display device are provided and relates to the display technology field. The display panel includes a temperature detection module, a timing control module, and a power management module. The timing control module identifies a real-time temperature of the display panel according to different combination signals outputted by the temperature detection module and controls the power management module to generate and output a corresponding common voltage according to the real-time temperature. The common voltage can follow a minimum flicker common voltage in real time.

    Electrical level shifting chip and display device

    公开(公告)号:US11205359B2

    公开(公告)日:2021-12-21

    申请号:US16626332

    申请日:2019-11-22

    发明人: Wenfang Li Dan Cao

    IPC分类号: G09G3/00

    摘要: An electrical level shifting chip and a display device are provided. The electrical level shifting chip includes an electrical level shifting module, an overcurrent protecting module, and a controlling module. The control module is configured to detect whether the electrical level shifting chip is in an electrostatic discharge test mode and to disable the overcurrent protecting module when the electrical level shifting chip is in the electrostatic discharge test mode. Avoid the overcurrent protecting module from being disturbed and causing malfunction during an electrostatic discharge test.

    DISPLAY POWER-SUPPLYING MODULE AND DISPLAY DEVICE

    公开(公告)号:US20240029620A1

    公开(公告)日:2024-01-25

    申请号:US17615086

    申请日:2021-11-02

    发明人: Wenfang Li

    IPC分类号: G09G3/20

    摘要: A display power-supplying module and a display device. The display power-supplying module includes a timing controller configured to generate a load signal according to a picture signal; a power supply electrically connected to the timing controller, wherein the power supply is configured to have a plurality of power-supplying channels, and at least one of the plurality of power-supplying channels is enabled to transmit electrical signals according to the load signal; and an integration circuit electrically connected to the plurality of power-supplying channels of the power supply, wherein the integration circuit is configured to generate an analog positive power source according to the electrical signals transmitted by the at least one power-supplying channel that is enabled.