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    Pixel Drive Circuit and Display Panel
    42.
    发明申请
    Pixel Drive Circuit and Display Panel 有权

    公开(公告)号：US20220383800A1

    公开(公告)日：2022-12-01

    申请号：US17040988

    申请日：2020-04-27

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Ning CONG ,  Ming YANG ,  Han YUE ,  Can WANG ,  Can ZHANG ,  Jiao ZHAO ,  Minghua XUAN ,  Xiaochuan CHEN

    IPC: G09G3/32

    Abstract: The present disclosure discloses a pixel drive circuit and a display panel. The pixel drive circuit includes a Micro-LED, a cathode of which is grounded; a light-emitting control circuit connected with an anode of the Micro-LED and configured to control an emission time of the Micro-LED; a current control circuit connected with the light-emitting control circuit and configured to output a preset current to the light-emitting control circuit to control the Micro-LED to work under a set current density, and luminance efficiency of the Micro-LED under the set current density is greater than a set threshold value.

    PIXEL CIRCUIT AND DRIVING METHOD THEREOF, ARRAY SUBSTRATE AND DIISPLAY APPARATUS
    43.
    发明申请
    PIXEL CIRCUIT AND DRIVING METHOD THEREOF, ARRAY SUBSTRATE AND DIISPLAY APPARATUS 有权

    公开(公告)号：US20220139322A1

    公开(公告)日：2022-05-05

    申请号：US16956200

    申请日：2019-08-14

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Can WANG ,  Han YUE ,  Can ZHANG ,  Minghua XUAN ,  Ming YANG

    IPC: G09G3/3241

    Abstract: Disclosed are a pixel circuit and a driving method thereof, an array substrate and a display apparatus. The pixel circuit includes a pixel sub-circuit. The pixel sub-circuit includes a first adjusting circuit and a second adjusting circuit. The first adjusting circuit is configured to receive a first data signal and a light emitting control signal to control a magnitude of a driving current used for driving a light emitting element to emit light; the second adjusting circuit is configured to receive a second data signal and a time control signal to control a time duration in which the driving current is applied to the light emitting element; and the time control signal changes within a time period during which the light emitting control signal allows the driving current to be generated. The pixel circuit can control the time duration in which the driving current is applied to the light emitting element, so that the light emitting element can realize display of various grayscales by controlling the light emitting time of the light emitting element, on the premise that the light emitting element operates at a relatively high current density.

    DRIVE CIRCUIT, DRIVING METHOD THEREOF AND DISPLAY DEVICE
    44.
    发明申请
    DRIVE CIRCUIT, DRIVING METHOD THEREOF AND DISPLAY DEVICE 有权

    公开(公告)号：US20220139297A1

    公开(公告)日：2022-05-05

    申请号：US16955171

    申请日：2019-07-18

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Ming YANG ,  Ning CONG ,  Minghua XUAN ,  Can ZHANG ,  Xiaochuan CHEN ,  Can WANG ,  Han YUE ,  Jiao ZHAO ,  Angran ZHANG

    IPC: G09G3/32

    Abstract: Embodiments of the present disclosure disclose a drive circuit, a driving method thereof and a display device. The drive circuit includes: a current control circuit, configured to provide a drive signal to a device to be driven according to a signal of a data signal terminal; a first transistor, electrically connected between the current control circuit and the device to be driven; and a duration control circuit, electrically connected with a gate of the first transistor, and configured to provide a light-emitting duration modulating signal to the gate of the first transistor according to a combined action of signals of a scanning signal terminal, a light-emitting control signal terminal, a duration control signal terminal and a reference voltage signal terminal, to control a conduction duration of the first transistor.

    PIXEL CIRCUIT, DRIVING METHOD THEREOF, AND DISPLAY PANEL
    45.
    发明申请
    PIXEL CIRCUIT, DRIVING METHOD THEREOF, AND DISPLAY PANEL 有权

    公开(公告)号：US20220005403A1

    公开(公告)日：2022-01-06

    申请号：US16475086

    申请日：2019-01-07

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Han YUE ,  Xiaochuan CHEN ,  Minghua XUAN ,  Can WANG ,  Can ZHANG ,  Ning CONG ,  Ming YANG

    IPC: G09G3/32

    Abstract: A pixel circuit includes a current control circuit, a time control circuit, and a light-emitting component, which are electrically coupled to one another in series along a common passage path of a driving current. The current control circuit is configured to control an intensity of the driving current according to a display data signal received thereby. The time control circuit is configured to control a passage time of the driving current according to a time data signal and a switch control signal received thereby. The light-emitting component is configured to emit a light according to the intensity and the passage time of the driving current.

    PIXEL CIRCUIT, DRIVING METHOD THEREOF AND DISPLAY DEVICE
    47.
    发明申请
    PIXEL CIRCUIT, DRIVING METHOD THEREOF AND DISPLAY DEVICE 有权

    公开(公告)号：US20210407408A1

    公开(公告)日：2021-12-30

    申请号：US16763219

    申请日：2019-11-01

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Ming YANG ,  Ning CONG ,  Han YUE ,  Can ZHANG ,  Can WANG ,  Jiao ZHAO ,  Angran ZHANG ,  Minghua XUAN ,  Xiaochuan CHEN

    IPC: G09G3/3233 ,  G09G3/00 ,  G09G3/3291

    Abstract: A pixel circuit and driving method are provided. The pixel circuit includes a light emitting device having a first terminal and a second terminal; a driving circuit, electrically connected to the first terminal of the light emitting device, for providing power to the light emitting device; a voltage comparator for generating a pulse width modulated signal having a duty cycle based on a data voltage and a reference voltage; an offset voltage detecting circuit, electrically connected to an output terminal of the voltage comparator, for detecting an input offset voltage of the voltage comparator; and a data voltage compensation circuit, electrically connected to the offset voltage detecting circuit, for compensating the data voltage according to the input offset voltage detected.

    PIXEL DRIVING CIRCUIT, PIXEL UNIT AND DRIVING METHOD, ARRAY SUBSTRATE, AND DISPLAY DEVICE
    48.
    发明申请
    PIXEL DRIVING CIRCUIT, PIXEL UNIT AND DRIVING METHOD, ARRAY SUBSTRATE, AND DISPLAY DEVICE 有权

    公开(公告)号：US20210366396A1

    公开(公告)日：2021-11-25

    申请号：US16639066

    申请日：2019-09-12

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Minghua XUAN ,  Han YUE ,  Ning CONG ,  Xiaochuan CHEN

    IPC: G09G3/3258 ,  G09G3/325 ,  G09G3/36

    Abstract: A pixel driving circuit, a pixel unit and a driving method therefor, an array substrate, and a display device for reducing mura phenomenon comprise: a data write sub-circuit for transmitting signals input by the data voltage terminal to a first node; an input and read sub-circuit for transmitting a signal input from a signal transmission terminal to a second node, or reading an electric signal of the second node to the signal transmission terminal; and an output control sub-circuit for transmitting a signal of a first voltage terminal to a drive sub-circuit, and transmitting a driving signal output by the drive sub-circuit to a driven circuit, wherein the drive sub-circuit outputs the driving signal under control of the signal of the first node and the signal of the first voltage terminal.

    Touch Display Substrate and Method for Driving the Same, Display Device
    49.
    发明申请
    Touch Display Substrate and Method for Driving the Same, Display Device 有权

    公开(公告)号：US20210342035A1

    公开(公告)日：2021-11-04

    申请号：US16606385

    申请日：2019-03-11

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Detao ZHAO ,  Ming YANG ,  Han YUE ,  Dongni LIU ,  Li XIAO ,  Lei WANG ,  Minghua XUAN ,  Xiaochuan CHEN

    IPC: G06F3/044 ,  G09G3/3241

    Abstract: A touch display substrate, including touch electrodes, touch lines and sub-pixels, each sub-pixel includes a storage capacitor, a driving transistor, a switching element and a light emitting element, a first electrode and a second electrode of the storage capacitor are coupled to a gate electrode and a first electrode of the driving transistor, respectively, and a second electrode of the driving transistor, the switching element and the light emitting element are sequentially coupled in series, each touch electrode is coupled to one corresponding touch line through a via hole in an insulating layer between said each touch electrode and the corresponding touch line, and each touch electrode is formed by the second electrode of the storage capacitor in at least one sub-pixel, during a touch stage, the switching element decouples electrical coupling between the second electrode of the driving transistor and the light emitting element.

    DISPLAY ASSEMBLY AND VIRTUAL REALITY DISPLAY DEVICE
    50.
    发明申请
    DISPLAY ASSEMBLY AND VIRTUAL REALITY DISPLAY DEVICE 有权

    公开(公告)号：US20210249634A1

    公开(公告)日：2021-08-12

    申请号：US16973005

    申请日：2020-03-18

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Can WANG ,  Can ZHANG ,  Han YUE ,  Ming YANG ,  Ning CONG ,  Jiao ZHAO ,  Minghua XUAN

    IPC: H01L51/52

    Abstract: The present disclosure provides a display assembly and a virtual reality display device. The display assembly includes an electroluminescent element, a packaging layer and a light converging layer arranged sequentially. The light converging layer is configured to converge light emitted by the electroluminescent element and transmitted through the packaging layer. The electroluminescent element includes a plurality of pixels, the light converging layer is tightly attached to the packaging layer, and an orthogonal projection of each pixel onto a surface of the packaging layer to which the light converging layer is tightly attached is completely covered by the light converging layer.

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