Pixel Circuit, Drive Method Thereof, Display Substrate, and Display Device

    公开(公告)号:US20220343835A1

    公开(公告)日:2022-10-27

    申请号:US17433244

    申请日:2021-02-07

    IPC分类号: G09G3/32

    摘要: A pixel circuit, a drive method, a display substrate, and a display device are provided. The pixel circuit includes a light emitting device, a current supply sub-circuit, and a time control sub-circuit. The current supply sub-circuit is connected to a scanning signal terminal, a data signal terminal, a light emitting control terminal, a first power voltage terminal, the time control sub-circuit, and the light emitting device, and is configured to receive a data voltage of the data signal terminal and provide a drive current for the light emitting device. The time control sub-circuit is connected to the scanning signal terminal, a time length signal terminal, a second power voltage terminal, a direct current control signal terminal, and a direct current voltage terminal, and is configured to receive a time length voltage of the time length signal terminal and a direct current voltage input by the direct current voltage terminal.

    PIXEL DRIVING CIRCUITS AND DISPLAY DEVICES

    公开(公告)号:US20230043626A1

    公开(公告)日:2023-02-09

    申请号:US17787479

    申请日:2021-03-03

    IPC分类号: G09G3/32

    摘要: Provided is a pixel driving circuit configured to provide a signal to a to-be-driven element. The pixel driving circuit includes: a current control sub-circuit, configured to transmit a current signal; a time length control sub-circuit, configured to transmit a time signal; and an output sub-circuit, electrically connected with the time length control sub-circuit and the current control sub-circuit, respectively; where the time length control sub-circuit is further configured to control the output sub-circuit to be turned on or off based on the time signal; the output sub-circuit is configured to, when turned on, control a current applied to the to-be-driven element based on the current signal, where duration of two adjacent turn-ons of the output sub-circuit is same and duration of two adjacent turn-offs of the output sub-circuit is same.

    DRIVE CIRCUIT, DRIVING METHOD THEREOF AND DISPLAY DEVICE

    公开(公告)号:US20220139297A1

    公开(公告)日:2022-05-05

    申请号:US16955171

    申请日:2019-07-18

    IPC分类号: G09G3/32

    摘要: 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 DEVICE

    公开(公告)号:US20210407408A1

    公开(公告)日:2021-12-30

    申请号:US16763219

    申请日:2019-11-01

    摘要: 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.

    DISPLAY DEVICE AND NEAR-EYE DISPLAY APPARATUS

    公开(公告)号:US20230180586A1

    公开(公告)日:2023-06-08

    申请号:US17921914

    申请日:2021-06-08

    IPC分类号: H10K59/80 H10K59/35

    CPC分类号: H10K59/879 H10K59/35

    摘要: The present disclosure provides a display device and a near-eye display apparatus. The display device includes: a base substrate; a light-emitting layer located on the side of the base substrate and including a plurality of light-emitting portions; a package layer located on the side of the light-emitting layer away from the base substrate; and a lens layer located on the side of the package layer away from the light-emitting layer, and including a plurality of lens structures having one-to-one correspondence to the light-emitting portions and protruding towards the sides distant from the light-emitting portions. On a cross section perpendicular to the base substrate, the center of the orthographic projection of the at least one lens structure on the base substrate does not overlap the center of the orthographic projection of a corresponding light-emitting portion on the base substrate.

    DISPLAY ASSEMBLY, DISPLAY APPARATUS AND VR/AR DISPLAY DEVICE

    公开(公告)号:US20220252765A1

    公开(公告)日:2022-08-11

    申请号:US17631279

    申请日:2021-01-21

    IPC分类号: G02B3/00

    摘要: A display assembly includes a display panel and a light adjusting layer disposed on a light-emitting side of the display panel. The display panel has a middle display region and a peripheral display region, and is configured to project light towards an optical device. An orthographic projection of the light adjusting layer on the display panel at least partially overlaps with the peripheral display region. The light adjusting layer is configured to: deflect at least a portion of light emitted to a first region of the optical device and at least a portion of light emitted to an outer side of the optical device among light emitted from the peripheral display region, after passing therethrough; and emit the deflected light to a second region of the optical device. The second region is farther away from a center of the optical device than the first region.

    PIXEL DRIVING CIRCUIT AND DISPLAY DEVICE

    公开(公告)号:US20210166629A1

    公开(公告)日:2021-06-03

    申请号:US16918960

    申请日:2020-07-01

    IPC分类号: G09G3/3258

    摘要: A pixel driving circuit and a display device are provided. The pixel driving circuit includes a voltage control circuit and a light-emitting time control circuit. The voltage control circuit is configured to control a voltage at a voltage writing node according to a first data voltage on a first data line; the light-emitting time control circuit is configured to connect the voltage writing node to a first electrode of a light-emitting device or disconnect the voltage writing node from the first electrode of the light-emitting device according to a second data voltage on a second data line and a reference voltage at a reference voltage terminal; and a second electrode of the light-emitting device is electrically connected to a first voltage terminal.