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

    Abstract: 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.

    DISPLAY SUBSTRATE AND DISPLAY PANEL

    公开(公告)号:US20210134903A1

    公开(公告)日:2021-05-06

    申请号:US16884461

    申请日:2020-05-27

    Abstract: The pixel substrate and a pixel panel are provided. The display substrate includes: a display structure layer, a cover plate on the display structure layer and a plurality of pixel definition layers and an anti-light crosstalk layer between the display structure layer and the cover plate, where the pixel definition layers are arranged on a lower surface of the cover plate at intervals and are in a one-to-one correspondence to sub-pixel units of the display substrate, the anti-light crosstalk layer surrounds each pixel definition layer, where a reflective component is between the anti-light crosstalk layer and the display structure layer, the reflective component includes an inclined surface configured to reflect light from the display structure layer to the pixel definition layer.

    OLED plate, display panel and display device using the same

    公开(公告)号:US10964772B2

    公开(公告)日:2021-03-30

    申请号:US16623712

    申请日:2019-06-04

    Abstract: An OLED plate comprises: a substrate; a plurality of OLED devices, disposed on one side of the substrate and located in the display area; and an auxiliary cathode, disposed on the one side of the substrate and at least located in the peripheral area. Each of the OLED devices includes a reflective anode, an organic material functional layer and a transparent cathode disposed in a direction distal from the substrate in sequence. A portion of the auxiliary cathode located in the peripheral area is electrically connected to transparent cathodes of the plurality of OLED devices, and resistivity of the auxiliary cathode is less than resistivity of a transparent cathode of the plurality of OLED devices.

    DISPLAY PANEL, PIXEL COMPENSATION CIRCUIT AND COMPENSATION METHOD

    公开(公告)号:US20200234644A1

    公开(公告)日:2020-07-23

    申请号:US16096796

    申请日:2018-01-17

    Abstract: The present application provides a pixel driving circuit, including a driving sub-circuit, a compensation sub-circuit, a first switching sub-circuit, and a second switching sub-circuit. The driving sub-circuit has a control terminal electrically connected to a first terminal of the second switching sub-circuit, a first terminal electrically connected to a light-emitting element, and a second terminal electrically connected to a power source; the compensation sub-circuit has a first terminal electrically connected to the first terminal of the driving sub-circuit, and a second terminal electrically connected to the control terminal of the driving sub-circuit; the first switching sub-circuit has a control terminal electrically connected to a first signal input terminal, a first terminal electrically connected to the first terminal of the driving sub-circuit, and a second terminal electrically connected to an initial voltage input terminal; and the second switching sub-circuit has a control terminal electrically connected to a second signal input terminal, a first terminal electrically connected to the control terminal of the driving sub-circuit, and a second terminal electrically connected to a data signal input terminal.

    OLED PLATE, DISPLAY PANEL AND DISPLAY DEVICE USING THE SAME

    公开(公告)号:US20200176541A1

    公开(公告)日:2020-06-04

    申请号:US16623712

    申请日:2019-06-04

    Abstract: An OLED plate comprises: a substrate; a plurality of OLED devices, disposed on one side of the substrate and located in the display area; and an auxiliary cathode, disposed on the one side of the substrate and at least located in the peripheral area. Each of the OLED devices includes a reflective anode, an organic material functional layer and a transparent cathode disposed in a direction distal from the substrate in sequence. A portion of the auxiliary cathode located in the peripheral area is electrically connected to transparent cathodes of the plurality of OLED devices, and resistivity of the auxiliary cathode is less than resistivity of a transparent cathode of the plurality of OLED devices.

    DISPLAY PANEL, MANUFACTURING METHOD THEREOF, AND DISPLAY DEVICE

    公开(公告)号:US20200098839A1

    公开(公告)日:2020-03-26

    申请号:US16417105

    申请日:2019-05-20

    Abstract: A display panel, a manufacturing method thereof and a display device are disclosed. The display panel includes a display backplane and a display cover assembled to be a cell. The display backplane includes a first base substrate, a pixel circuit layer, a first electrode layer, a light-emitting layer, a second transparent electrode layer, and a plurality of first pixel regions stacked on the first base substrate. The display cover includes a second base substrate, a plurality of optical sensing components and a plurality of second pixel regions on the second base substrate, the plurality of optical sensing components being arranged in the plurality of second pixel regions in one to one correspondence.

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