Shift register, array substrate and display device

    公开(公告)号:US10672491B2

    公开(公告)日:2020-06-02

    申请号:US15770798

    申请日:2017-11-03

    Inventor: Xianrui Qian Bo Li

    Abstract: A shift register, an array substrate and a display device in the field of display technology are provided in the present disclosure. In the shift register, the gate electrode of the first transistor is connected to a second node, one of the source electrode and the drain electrode is connected to a first clock signal line, and the other one is connected to the first node. The gate electrode of the second transistor is connected to the second node, one of the source electrode and the drain electrode is connected to the second node, and the other one is connected to the first clock signal line. The charging circuitry is configured to set the second node to an effective level when a second clock signal line is at an effective level. The memory circuitry is configured to store the threshold voltage of the second transistor and compensate the threshold voltage of the first transistor with the stored threshold voltage.

    PIXEL DRIVING CIRCUIT, DRIVING METHOD FOR THE SAME AND DISPLAY PANEL

    公开(公告)号:US20190172392A1

    公开(公告)日:2019-06-06

    申请号:US16152263

    申请日:2018-10-04

    Abstract: The present disclosure relates to a pixel driving circuit and a driving method for the same and a display panel. The pixel driving circuit includes a driver unit, a circuit switching unit, and a storage capacitor unit. The driver unit includes a first sub-driver unit and a second sub-driver unit. The circuit switching unit has a first switching unit and a second switching unit. Two terminals of the first switching unit are electrically connected to a first terminal of the light emitting unit and the first sub-driver unit, respectively, two terminals of the second switching unit are electrically connected to the light emitting unit and the second sub-driver unit, respectively, and the circuit switching unit is configured to switch conductive states of the first switching unit and the second switching unit.

    Pixel Driving Circuit, Driving Method, Organic Light Emitting Display Panel and Display Device

    公开(公告)号:US20190156752A1

    公开(公告)日:2019-05-23

    申请号:US16091272

    申请日:2018-02-27

    Abstract: The invention discloses a pixel driving circuit, a driving method, an organic light emitting display panel and a display device. The pixel driving circuit comprises a data writing module (1), a memory module (2), at least one first light emitting device (D1), a first driving module (3) which corresponds to the various first light emitting devices (D1) one by one, at least one second light emitting device (D2) and a second driving module (4) which corresponds to the various second light emitting devices (D2) one by one. Through mutual cooperation of each module, the voltage of a node can be switched between a positive value and a negative value by virtue of a simple structure, so that performances of the first driving module (3) and the second driving module (4) are recovered, and then the influence on the stability and the service life of the display panel due to performance offset of the first driving module (3) and the second driving module (4) is relieved.

    Shift register circuit, method for driving the same, and display device

    公开(公告)号:US11222567B2

    公开(公告)日:2022-01-11

    申请号:US16334938

    申请日:2018-08-14

    Abstract: A shift register circuit includes a noise reduction sub-circuit and a pull-down node control sub-circuit. A control end of the noise reduction sub-circuit is connected to a pull-down node, the noise reduction sub-circuit is connected to a first voltage input end. The pull-down node control sub-circuit includes a first pull-down node control sub-circuit and a second pull-down node control sub-circuit. The second pull-down node control sub-circuit controls the pull-down control node to be connected to a first clock signal input end when the first clock signal input end inputs a first level, the pull-down node to be connected to the first clock signal input end when a potential of the pull-down control node is at the first level, so that the potential of the pull-down node is at a first level and a noise reduction transistor included in the noise reduction sub-circuit is turned off.

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