Virtual reality feedback device, and positioning method, feedback method and positioning system thereof

    公开(公告)号:US11035948B2

    公开(公告)日:2021-06-15

    申请号:US16159123

    申请日:2018-10-12

    Abstract: The disclosure discloses a virtual reality feedback device, and a positioning method, a feedback method, and a positioning system thereof. The method for positioning a virtual reality feedback device includes: obtaining first time point information of a first microwave signal, wherein the first time point information includes a reception time point and a transmission time point of the first microwave signal; obtaining a second time point information of a second microwave signal, wherein the second time point information includes a reception time point and a transmission time point of the second microwave signal; and determining a position of the virtual reality feedback device according to a transmission speed of the first microwave signal, a transmission speed of the second microwave signal, the first time point information, and the second time point information.

    LIGHT-EMITTING LAYER, ORGANIC LIGHT EMITTING DIODE DEVICE AND DISPLAY APPARATUS

    公开(公告)号:US20210159429A1

    公开(公告)日:2021-05-27

    申请号:US17168396

    申请日:2021-02-05

    Abstract: The present disclosure provides a light-emitting layer, an organic light emitting diode (OLED) device, and a display apparatus. The light-emitting layer has a host material containing a first photocrosslinker group. A guest material containing a second photocrosslinker group is prepared. The host material and the guest material are mixed in a solvent to form a mixture. The mixture is coated, annealed, and LV-irradiated on a substrate to form the light-emitting layer. As such, the disclosed light-emitting layer is prepared by the polymerization after being on the substrate. The light-emitting layer has a mesh structure. The mesh structure improves energy transfer between the host material and guest material and increases the lifespan of the resultant OLED device and OLED display apparatus.

    Pixel unit circuit, pixel circuit, driving method and display device

    公开(公告)号:US10796641B2

    公开(公告)日:2020-10-06

    申请号:US16335024

    申请日:2018-06-21

    Abstract: The present disclosure provides a pixel unit circuit, a pixel circuit, a driving method and a display device. The pixel unit circuit includes: a light-emitting component with a first terminal coupled with a first voltage input terminal; a storage capacitor module; a driver transistor; a light-emitting control circuit with a control terminal coupled with a light-emitting control line, a first terminal coupled with a second voltage input terminal and a second terminal coupled with a second electrode of the driver transistor, where the light-emitting control circuit is to, under control of the light-emitting control line, control whether the second electrode of the driver transistor is coupled with the second voltage input terminal; a charging compensation control circuit configured to, under control of a gate line, control whether a gate electrode of the driver transistor is coupled with a data line; and a voltage control circuit coupled with the first voltage input terminal and configured to control a voltage value of a first voltage input to the first voltage input terminal.

    PIXEL CIRCUIT AND DRIVE METHOD THEREOF, DISPLAY SUBSTRATE, DISPLAY DEVICE

    公开(公告)号:US20200312244A1

    公开(公告)日:2020-10-01

    申请号:US16617060

    申请日:2019-02-13

    Abstract: Provided are a pixel circuit and a drive method thereof, a display substrate, and a display device. The pixel circuit includes a current source sub-circuit and a voltage divider sub-circuit. The current source sub-circuit is configured to update a stored drive voltage based on a voltage at the data signal terminal when the gate signal terminal receives a gate drive signal, and output a drive current based on the stored drive voltage when the switch signal terminal receives a light-emitting control signal, a current value of the drive current being positively correlated to a voltage value of the drive voltage. The voltage divider sub-circuit is configured to regulate an equivalent resistance value of the voltage divider sub-circuit in an output path of the drive current based on a signal received by the voltage division control signal terminal.

    Shift Register Unit, Gate Driving Circuit and Driving Method Thereof

    公开(公告)号:US20190066617A1

    公开(公告)日:2019-02-28

    申请号:US15766659

    申请日:2017-09-30

    Inventor: Jian Zhao Hui Wang

    Abstract: A shift register unit and a driving method thereof, a gate driving circuit, and an array substrate are provided, and the shift register unit includes: an input sub-circuit connected between a signal input terminal and a pull-up node, an output sub-circuit connected between the pull-up node and a signal output terminal; a reset sub-circuit connected between a reset terminal, the pull-up node and the signal output terminal; and a clock signal selection sub-circuit having input terminals connected to a first clock signal terminal and a second clock signal terminal, and a first output terminal connected to the output sub-circuit, and for selecting to provide either a first clock signal or a second clock signal to the output sub-circuit according to voltage levels at the first control terminal and the second control terminal.

    Shift register and driving method thereof, gate driving device

    公开(公告)号:US10095058B2

    公开(公告)日:2018-10-09

    申请号:US15740121

    申请日:2017-05-04

    Inventor: Hui Wang Jian Zhao

    Abstract: Embodiments of the present disclosure relate to a shift register and its driving method, a gate driving device and its driving method. The shift register comprises an input module, a reset module, a control module, a pull-up module, a pull-down module, an output gating module and an output pull-down module. The input module can provide an input signal to the pull-up control node according to the input signal. The reset module can provide a first voltage signal to the pull-up control node according to a reset signal. The pull-up module can provide a first clock signal to the cascade node according to the voltage of the pull-up control node. The control module can control the voltage of the pull-down control node according to the second clock signal and the voltage of the pull-up control node.

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