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    Display apparatus
    5.
    发明授权
    Display apparatus 有权

    公开(公告)号：US11696470B2

    公开(公告)日：2023-07-04

    申请号：US17246989

    申请日：2021-05-03

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Yeonkeon Moon ,  Taesang Kim ,  Joonseok Park ,  Sangwoo Sohn ,  Soyoung Koo

    IPC: H01L27/32 ,  H01L51/56 ,  H10K59/121 ,  H10K71/00 ,  H01L27/12 ,  H10K59/38 ,  H10K59/12

    CPC classification number: H10K59/1213 ,  H10K71/00 ,  H01L27/1225 ,  H01L27/1251 ,  H10K59/1201 ,  H10K59/38

    Abstract: A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a pixel circuit disposed on the substrate in the display area, where the pixel circuit includes a driving thin film transistor and a switching thin film transistor, and a display element connected to the pixel circuit. The driving thin film transistor includes a driving semiconductor layer having a single layer structure, the switching thin film transistor includes a switching semiconductor layer in which a first layer, a second layer, and a third layer, which are oxide semiconductors, are sequentially stacked one on another, and a conductivity of the second layer of the switching semiconductor layer is greater than respective conductivities of the first layer and the third layer of the switching semiconductor layer.

    DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME
    7.
    发明申请
    DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME 有权

    公开(公告)号：US20230037108A1

    公开(公告)日：2023-02-02

    申请号：US17841206

    申请日：2022-06-15

    Applicant: Samsung Display Co., Ltd.

    Inventor： Soyoung Koo ,  Eoksu Kim ,  Hyungjun Kim ,  Yunyong Nam ,  Junhyung Lim ,  Kyungjin Jeon

    IPC: H01L27/32 ,  G09G3/3266 ,  G09G3/3291

    Abstract: A display apparatus is disclosed that includes contact holes formed to expose at least a portion of a conductive layer or a semiconductor layer without damage to the surface of the conductive layer or the semiconductor layer, and a method of manufacturing the display apparatus. The display apparatus includes a substrate, a conductive mound arranged on the substrate, a first insulating mound arranged on the substrate, and a semiconductor layer including a first region arranged on the conductive mound, and a second region arranged on the first insulating mound. The second region of the semiconductor layer substantially covers an upper surface of the first insulating mound.

    Display apparatus
    8.
    发明授权
    Display apparatus 有权

    公开(公告)号：US11495650B2

    公开(公告)日：2022-11-08

    申请号：US17081342

    申请日：2020-10-27

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kyungjin Jeon ,  Soyoung Koo ,  Eoksu Kim ,  Junhyung Lim

    IPC: H01L27/14 ,  H01L27/32 ,  H01L27/12 ,  H01L29/66 ,  H01L29/786 ,  H01L21/02

    Abstract: A display apparatus includes a thin film transistor facing a substrate with a buffer layer therebetween and including a semiconductor layer, a channel region, a source region, a drain region, and a gate electrode; a conductive pattern between the substrate and the semiconductor layer and connected to the semiconductor layer, the conductive pattern facing the semiconductor layer with the buffer layer therebetween; a contact hole in the buffer layer and exposing the conductive pattern to outside the buffer layer; and a display element which is electrically connected to the thin film transistor. The source region or the drain region extends through the contact hole in the buffer layer, to contact the conductive pattern and connect the semiconductor layer to the conductive pattern.

    DISPLAY APPARATUS
    9.
    发明申请
    DISPLAY APPARATUS 有权

    公开(公告)号：US20220149132A1

    公开(公告)日：2022-05-12

    申请号：US17246989

    申请日：2021-05-03

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Yeonkeon Moon ,  Taesang Kim ,  Joonseok Park ,  Sangwoo Sohn ,  Soyoung Koo

    IPC: H01L27/32 ,  H01L51/56

    Abstract: A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a pixel circuit disposed on the substrate in the display area, where the pixel circuit includes a driving thin film transistor and a switching thin film transistor, and a display element connected to the pixel circuit. The driving thin film transistor includes a driving semiconductor layer having a single layer structure, the switching thin film transistor includes a switching semiconductor layer in which a first layer, a second layer, and a third layer, which are oxide semiconductors, are sequentially stacked one on another, and a conductivity of the second layer of the switching semiconductor layer is greater than respective conductivities of the first layer and the third layer of the switching semiconductor layer.

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