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    Organic Light Emitting Display Device
    2.
    发明申请
    Organic Light Emitting Display Device 有权

    公开(公告)号：US20220069015A1

    公开(公告)日：2022-03-03

    申请号：US17384231

    申请日：2021-07-23

    Applicant: LG Display Co., Ltd.

    Inventor： Wonjin Choi ,  Younghoon Kim ,  Jungmin Yoon ,  Seungcheol You

    IPC: H01L27/32 ,  H01L51/52

    Abstract: An organic light emitting display device includes a substrate having a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel arranged in a quad type of a 2×2 matrix form, a first color filter disposed in the first sub-pixel, a second color filter disposed in the second sub-pixel, a third color filter disposed in the third sub-pixel, and a planarization layer covering the first to third color filters, wherein the planarization layer has a concave portion of a lens shape in the fourth sub-pixel, wherein the concave portion has a width greater than that of the fourth sub-pixel. Accordingly, the organic light emitting display device with improved light extraction efficiency of the fourth sub-pixel may be implemented.

    High-resolution micro-LED display device and manufacturing method of the same
    5.
    发明授权
    High-resolution micro-LED display device and manufacturing method of the same 有权

    公开(公告)号：US10903195B2

    公开(公告)日：2021-01-26

    申请号：US16545973

    申请日：2019-08-20

    Applicant: LG Display Co., Ltd.

    Inventor： Wonjin Choi ,  Geesung Chae

    IPC: H01L25/075 ,  H01L27/12 ,  H01L21/683 ,  H01L33/50

    Abstract: A manufacturing method of a micro-LED display device comprises forming a plurality of thin-film transistor array areas that includes a plurality of thin-film transistor arrays on a first substrate; forming a plurality of micro-LED array areas that includes a plurality of micro-LED arrays on a second substrate; transferring the plurality of micro-LED array areas that correspond to the plurality of thin-film transistor array areas onto the first substrate; forming a bank film on a third substrate over the first substrate; patterning the bank film to form a first bank layer that corresponds to a boundary area between the plurality of micro-LED arrays and a second bank layer that corresponds to an edge area of the plurality of micro-LED array areas, to form a pixel area and a pixel array area, and to remove the bank film in a boundary area between the second bank layers adjacent to each other; cutting the third substrate and the first substrate along a scribe zone that is set in a boundary area between the second bank layers adjacent to each other; and separating a plurality of pixel arrays that includes the plurality of thin-film transistor arrays and the plurality of micro-LED arrays from the first substrate and transferring the plurality of pixel arrays onto a fourth substrate.

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