Organic light-emitting diode display substrate and display device

    公开(公告)号:US11637150B2

    公开(公告)日:2023-04-25

    申请号:US17353372

    申请日:2021-06-21

    Abstract: The present disclosure provides an organic light-emitting diode display substrate, a method of preparing the same, and a display device. The organic light-emitting diode display substrate includes: a light-emitting layer, a light modulation layer, and a color conversion layer, in which the light-emitting layer is configured to emit first color light, the light modulation layer and the color conversion layer are arranged on different light-exiting paths of the light-emitting layer, the color conversion layer is configured to convert first color light into second color light and third color light, and the light modulation layer is configured to modulate an emergent direction of first color light.

    OLED display panel and OLED display device

    公开(公告)号:US11631835B2

    公开(公告)日:2023-04-18

    申请号:US16768279

    申请日:2020-01-19

    Abstract: The present disclosure provides an OLED display panel and an OLED display device, and belongs to the field of display technology. The OLED display panel of the present disclosure includes a base substrate and a display cover disposed opposite to each other; a polarizing layer disposed between the base substrate and the display cover; a light extraction layer disposed between the base substrate and the display cover; the OLED display panel is provided with a light exit surface, and the light extraction layer is closer to the light exit surface than the polarizing layer.

    LIGHT EMITTING DEVICE AND DISPLAYING DEVICE

    公开(公告)号:US20220029100A1

    公开(公告)日:2022-01-27

    申请号:US17188004

    申请日:2021-03-01

    Abstract: A light emitting device and a displaying device. The light emitting device includes a first electrode, a second electrode, and a light emitting unit located between the first electrode and the second electrode, and the light emitting unit includes a doped electron-barrier layer, a blue-light host layer and a doped blue-light host layer that are stacked; the doped electron-barrier layer includes an electron-barrier host material and a first guest material that is doped in the electron-barrier host material; the blue-light host layer includes a first blue-light host material; the doped blue-light host layer includes a second blue-light host material and a second guest material that is doped in the second blue-light host material; and a singlet-state energy level of the first blue-light host material is higher than a singlet-state energy level of the first guest material and a singlet-state energy level of the second guest material.

    Pixel definition layer and manufacturing method thereof, display substrate, and display panel

    公开(公告)号:US11127798B2

    公开(公告)日:2021-09-21

    申请号:US16126053

    申请日:2018-09-10

    Abstract: A pixel definition layer and a manufacturing method thereof, a display substrate, and a display panel are provided. The pixel definition layer includes: a lyophilic material layer on a base substrate, which includes a plurality of lyophilic portions spaced in pairs, which being with an annular structure and used to define a pixel region; and a lyophobic material layer on a side of the lyophilic material layer from the base substrate, which being filled between each two adjacent lyophilic portions of the plurality of lyophilic portions, and a distance from a surface of the lyophobic material layer from the base substrate to the base substrate is larger than a distance from a surface of the lyophilic material layer from the base substrate to the base substrate. The pixel definition layer improves the uniformity of films formed in the pixel region by the solution.

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