Organic light emitting diode display

    公开(公告)号:US09786224B2

    公开(公告)日:2017-10-10

    申请号:US14702602

    申请日:2015-05-01

    Abstract: An organic light emitting diode display includes: a substrate; a scan line, a first emission control line, and a second emission control line on the substrate; a data line and a driving voltage line crossing the scan line; a switching transistor connected to the scan line and the data line and including a switching drain electrode; a driving transistor including a driving source electrode connected to the switching drain electrode; an organic light emitting diode electrically connected to a driving drain electrode of the driving transistor; an operation control transistor to transmit a driving voltage to the driving transistor; and a first emission control transistor and second emission control transistor to transmit the driving voltage from the driving transistor to the organic light emitting diode, wherein the first emission control line and the second emission control line partially overlap each other.

    Display device and image display system having the same

    公开(公告)号:US11580937B2

    公开(公告)日:2023-02-14

    申请号:US17749580

    申请日:2022-05-20

    Abstract: An image display system includes a graphic processor which generates an image signal, a control signal, and a variable frequency signal; and a display device which displays an image at a frame frequency corresponding to the variable frequency signal from the graphic processor. The display device includes pixels connected to emission control lines, data lines, and scan lines; a controller which provides reference data including information on reference cycles, which are cycles in which an emission control start signal is output, to the graphic processor, outputs the emission control start signal based on the control signal, and adjusting an output timing of a scan start signal based on the variable frequency signal; an emission driver which supplies emission control signals to the emission control lines based on the emission control start signal; and a scan driver which supplies scan signals to the scan lines based on the scan start signal.

    Display device driving method
    16.
    发明授权

    公开(公告)号:US11094263B2

    公开(公告)日:2021-08-17

    申请号:US16890328

    申请日:2020-06-02

    Abstract: A display device driving method includes: providing a reference voltage for compensating a threshold voltage of a driving transistor in a pixel; and providing a data signal to the pixel, wherein providing the reference voltage, and providing the data signal to the pixel are performed in a first frame period, and a second frame period successive to the first frame period, wherein the display device driving method further comprises providing a compensation signal generated by comparing a data signal with a reference voltage provided in a previous frame period of each frame period to the pixel before providing the reference voltage is ended.

    Display device
    17.
    发明授权

    公开(公告)号:US10679566B2

    公开(公告)日:2020-06-09

    申请号:US15843367

    申请日:2017-12-15

    Abstract: Provided herein may be a display device. The display device may include a substrate, a base layer, a first protrusion and a second protrusion. The substrate may include a pixel area, and a peripheral area surrounding the pixel area. The base layer may be disposed on the pixel area, and include a plurality of island patterns on which respective pixels are provided, and a plurality of bridge patterns coupling the adjacent island patterns to each other, the plurality of island patterns and the plurality of bridge patterns disposed on the first area. The first protrusion and the second protrusion may be provided on the base layer.

    Display device and method of driving the same

    公开(公告)号:US11640794B2

    公开(公告)日:2023-05-02

    申请号:US17680612

    申请日:2022-02-25

    Abstract: A display device includes a first transistor including a first electrode connected to a first power line, a second electrode connected to a third node, and a gate electrode connected to a first node, a first capacitor formed between the first power line and a second node, a second capacitor formed between the first node and the second node, an emission transistor including a first electrode connected to the third node, a second electrode, and a gate electrode connected to an emission control line, and a light emitting element connected to the second electrode of the emission transistor and a second power line.

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