Pixel unit, display panel, driving method thereof and compensation control method thereof

    公开(公告)号:US11270642B2

    公开(公告)日:2022-03-08

    申请号:US16674531

    申请日:2019-11-05

    IPC分类号: G06F3/038 G09G3/3258

    摘要: A pixel unit includes a first sub-pixel circuit and a second sub-pixel circuit. The first sub-pixel circuit includes a first sub-pixel driving circuit and a first light-emitting element, and the second sub-pixel circuit includes a second sub-pixel driving circuit and a second light-emitting element. The first sub-pixel driving circuit and the second sub-pixel driving circuit are connected to a first data line, and the first sub-pixel driving circuit is connected to a first gate line, the second sub-pixel driving circuit is connected to the second gate line. The first sub-pixel driving circuit is configured to drive the first light-emitting element by a data voltage on the first data line under the control of the first gate line. The second sub-pixel driving circuit is configured to drive the second light-emitting element by the data voltage on the first data line under the control of the second gate line.

    OLED pixel circuit, and driving method thereof, and a display apparatus

    公开(公告)号:US11114027B2

    公开(公告)日:2021-09-07

    申请号:US16063932

    申请日:2017-11-21

    IPC分类号: G09G3/3233

    摘要: The present application discloses a pixel circuit, including a data-input sub-circuit configured to apply a data voltage from the data line to a first node; a reset sub-circuit configured to reset the second node; a driving-control sub-circuit coupled to a first power supply, the first node, and the second node; a power-storage sub-circuit configured to regulate a voltage difference between the first node and the second node; a light-emitting device coupled to the second node and a second power supply; and a sampling sub-circuit coupled to the data line and the second node and being configured to control the data line to connect with the second node for collecting a voltage signal containing information about electrical properties of the driving-control sub-circuit and being used to generating a compensation voltage for compensating any drifts of the electrical properties.

    Pixel circuitry with mobility compensation

    公开(公告)号:US10777128B2

    公开(公告)日:2020-09-15

    申请号:US15981020

    申请日:2018-05-16

    摘要: The present disclosure discloses a pixel circuit, a display apparatus and a dual-gate driving transistor. The pixel circuit comprises a dual-gate driving transistor having a drain electrically connected to a first power supply terminal; a threshold voltage compensation unit electrically connected to a data terminal, a first control terminal, a first gate of the dual-gate driving transistor, and a source of the dual-gate driving transistor respectively; a mobility compensation unit electrically connected to a sensing signal terminal, a second control terminal, and the source of the dual-gate driving transistor respectively; and a light emitting control unit electrically connected to the data terminal, a third control terminal, a second gate of the dual-gate driving transistor, the source of the dual-gate driving transistor, and a light emitting device respectively. The threshold voltage compensation unit and the mobility compensation unit perform threshold voltage compensation for the dual-gate driving transistor under the control of the data terminal, the first control terminal, the sensing signal terminal, and the second control terminal; and the mobility compensation unit and the light emitting control unit perform mobility compensation for the dual-gate driving transistor and control the dual-gate driving transistor to drive the light emitting device to emit light under the control of the sensing signal terminal, the second control terminal, the data terminal, and the third control terminal.

    Pixel circuit, method for driving the same, and display apparatus

    公开(公告)号:US10535302B2

    公开(公告)日:2020-01-14

    申请号:US15975469

    申请日:2018-05-09

    摘要: The embodiments of the present application provide a pixel circuit, a method for driving the same, and a display apparatus. A driving sub-circuit in the pixel circuit includes a driving transistor and a first storage capacitor. The first storage capacitor has a first terminal electrically coupled to a gate of the driving transistor, and a second terminal coupled to a second electrode of the driving transistor. A writing sub-circuit is coupled to a scanning signal line, a data line, and the gate of the driving transistor, and is configured to write a data voltage into the driving transistor and maintain the driving transistor to be turned on. A reset sub-circuit is configured to supply an initial voltage to the light emitting sub-circuit so as to reset the light emitting sub-circuit. The driving transistor is further coupled to the light emitting sub-circuit to drive the light emitting sub-circuit to emit light.

    OLED display panel, method for producing the same and display device

    公开(公告)号:US10446784B2

    公开(公告)日:2019-10-15

    申请号:US15979143

    申请日:2018-05-14

    IPC分类号: H01L51/52 H01L51/56 H01L27/32

    摘要: An OLED display panel, a method for producing the same and a display device are provided. The OLED display panel includes: a substrate; and a plurality of sub-pixel areas on the substrate, each of the plurality of sub-pixel areas including a light emitting region and a non-light emitting region, wherein a plurality of insulation layers are in the non-light emitting region and a light emitting assembly is in the light emitting region, and wherein at most two insulation layers of the plurality of insulation layers extend from the non-light emitting region into the light emitting region between the light emitting assembly and the substrate, and wherein total number of the plurality of insulation layers in the non-light emitting region is greater than number of the insulation layers extending from the non-light emitting region into the light emitting region between the light emitting assembly and the substrate.