Latch and drive method thereof, source drive circuit and display device

    公开(公告)号:US11195443B2

    公开(公告)日:2021-12-07

    申请号:US16707212

    申请日:2019-12-09

    Inventor: Jiguo Wang Jun Fan

    Abstract: Provided are a latch and a drive method thereof, a source drive circuit and a display device. The latch includes: a first latch circuit and a second latch circuit; the first latch circuit is connected to a first control signal terminal, a data signal terminal and a transmission node, and is configured to latch a data signal from the data signal terminal at a first latch node and transmit the data signal to the transmission node; and the second latch circuit is connected to the transmission node, a first switch signal terminal, a second switch signal terminal and an output node, and is configured to latch a data signal from the transmission node at a second latch node and output the data signal to the output node; a loop in the second latch circuit is turned off in response to the data signal written to the second latch node.

    Display device, pixel compensation circuit and driving method thereof

    公开(公告)号:US11189230B2

    公开(公告)日:2021-11-30

    申请号:US16768395

    申请日:2019-12-16

    Abstract: A display device, a pixel compensation circuit and a driving method thereof are disclosed. The pixel compensation circuit includes: a driving transistor, an initialization circuit, a storage circuit, a first data writing circuit, a second data writing circuit, a compensation circuit and a light emitting control circuit. A first terminal of the storage circuit is coupled to the gate electrode of the drive transistor, and the first data writing circuit is configured to write a data signal to a second terminal of the storage circuit. The second data writing circuit is configured to change a potential of the second terminal of the storage circuit so that a potential of the first terminal of the storage circuit is associated with the data signal. The compensation circuit is configured to charge the first terminal of the storage circuit so that it is associated with a threshold voltage of the drive transistor.

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