ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY PANEL

    公开(公告)号:US20220255043A1

    公开(公告)日:2022-08-11

    申请号:US17486559

    申请日:2021-09-27

    IPC分类号: H01L51/52 H01L51/50

    摘要: The present disclosure provides an organic electroluminescent device and a display panel. The organic electroluminescent device includes a first electrode, a second electrode and a light-emitting layer disposed between the first electrode and the second electrode; a functional electrode is disposed on a side of at least one of the first electrode and the second electrode away from the light-emitting layer; the functional electrode includes a first layer-stacked structure including a plurality of first light-transmitting layers and at least one second light-transmitting layer; the first and second light-transmitting layers are stacked alternately; in the first layer-stacked structure, both the layer closest to the light-emitting layer and the layer farthest from the light-emitting layer are the first light-transmitting layers; a refractive index of the first light-transmitting layer is greater than a refractive index of the second light-transmitting layer.

    DISPLAY PANEL, BRIGHTNESS COMPENSATION METHOD AND DISPLAYING DEVICE

    公开(公告)号:US20220293050A1

    公开(公告)日:2022-09-15

    申请号:US17509822

    申请日:2021-10-25

    摘要: The disclosure provides a display panel, a compensation of brightness method and a displaying device. The display panel comprises an array substrate, a luminescent layer, a plurality of optical film layers and a photoelectric sensor, wherein the luminescent layer is located on one side of the array substrate, the array substrate is used for driving the luminescent layer to emit light, the optical film layers are located on a side, away from the array substrate, of the luminescent layer, light emitted by the luminescent layer forms optical waveguide on the array substrate and/or the optical film layers, and the photoelectric sensor is used for acquiring the optical waveguide to perform compensation of brightness on the light emitted by the luminescent layer according to data of the optical waveguide.

    DISPLAY SUBSTRATE, METHOD OF FORMING DISPLAY SUBSTRATE AND DISPLAY DEVICE

    公开(公告)号:US20220271105A1

    公开(公告)日:2022-08-25

    申请号:US17552334

    申请日:2021-12-15

    发明人: Xing FAN Chao KONG

    摘要: A display substrate, a method of forming a display substrate and a display device are provided. The display substrate includes: a plurality of pixel units arranged in an array, a substrate, a light-emitting device layer and an electrochromic functional layer, where the light-emitting device layer and the electrochromic functional layer are stacked on the substrate; the light-emitting device layer includes a plurality of light-emitting devices, an orthographic projection of the electrochromic functional device on the substrate is at least partially overlapped with an orthographic projection of the corresponding effective light-emitting area on the substrate.

    DISPLAY DEVICE AND OPERATION METHOD THEREOF

    公开(公告)号:US20210141583A1

    公开(公告)日:2021-05-13

    申请号:US16640408

    申请日:2019-03-11

    IPC分类号: G06F3/14 G06F1/16

    摘要: Disclosed are a display device and an operation method thereof. The display device includes a primary display screen, a secondary display and an optical function processor. The primary display screen has a display surface and includes a transparent region; the secondary display is located at a side of the primary display screen opposite to the display surface of the primary display screen, and is configured to project image light to the transparent region of the primary display screen for displaying in the transparent region; the optical function processor is located at the side of the primary display screen opposite to the display surface of the primary display screen, and is configured to perform the corresponding operation.

    Aging Test Method and Aging Test System for Light Emitting Device

    公开(公告)号:US20190195938A1

    公开(公告)日:2019-06-27

    申请号:US16329393

    申请日:2018-05-03

    IPC分类号: G01R31/26 H05B33/08

    摘要: An aging test method for a light emitting device is provided. The aging test method includes: collecting, in an aging process applied to the light emitting device, an initial value of a first characteristic parameter of the light emitting device and an initial test time point; collecting a current value of the first characteristic parameter and a current test time point (step S1); generating a feature line according to the initial value, the current value, the initial test time point, and the current test time point, and calculating a slope of the feature line; determining whether the slope of the feature line is greater than or equal to a predetermined threshold and less than 0, and returning to the step S1 if a result of the determination is NO; and terminating the aging process applied to the light emitting device if the result of the determination is YES.