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    Display device including refractive layer on pixel defining layer
    1.
    发明授权
    Display device including refractive layer on pixel defining layer 有权

    公开(公告)号：US11489143B2

    公开(公告)日：2022-11-01

    申请号：US15931356

    申请日：2020-05-13

    Applicant: Samsung Display Co., Ltd.

    Inventor： Haeyoung Yun ,  Soon Il Jung ,  Jung-Hyun Cho ,  Sang-Hyun Choi ,  Beohm-Rock Choi

    IPC: H01L51/52 ,  H01L27/32

    Abstract: A display device includes: a pixel defining layer on a pixel electrode, and having a pixel opening exposing a portion of the pixel electrode; an emission layer on the pixel electrode at the pixel opening; an opposite electrode on the emission layer; a first refractive layer on the opposite electrode, and having a first refractive index, and a refractive opening that overlaps with the pixel opening; and a second refractive layer on the first refractive layer, and having a second refractive index greater than the first refractive index. A minimum gap between the pixel opening and the refractive opening in a plan view is greater than or equal to −1 μm and less than or equal to 2.5 μm, and a width of the refractive opening is less than a width of the pixel opening when the minimum gap is negative, and greater when the minimum gap is positive.

    Display apparatus and method of manufacturing the same
    3.
    发明授权
    Display apparatus and method of manufacturing the same 有权

    公开(公告)号：US11569321B2

    公开(公告)日：2023-01-31

    申请号：US17135840

    申请日：2020-12-28

    Applicant: Samsung Display Co., Ltd.

    Inventor： Wangwoo Lee ,  Minwoo Woo ,  Gunwoo Ko ,  Haeyoung Yun ,  Hyungjoo Jeon ,  Junghyun Cho

    IPC: H01L27/32

    Abstract: A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a display element arranged on the substrate in the display area, an encapsulation layer arranged on the display element, a first insulating layer arranged on the encapsulation layer and including a first opening that corresponds to a light-emitting area of the display element, and a second insulating layer covering the first insulating layer. A second refractive index of the second insulating layer is greater than a first refractive index of the first insulating layer, and a side surface of the first insulating layer defining the first opening includes a staircase-shaped step.

    Display device with refractive layers
    4.
    发明授权
    Display device with refractive layers 有权

    公开(公告)号：US11552273B2

    公开(公告)日：2023-01-10

    申请号：US16859868

    申请日：2020-04-27

    Applicant: Samsung Display Co., Ltd.

    Inventor： Haeyoung Yun ,  Jiryun Park ,  Beohmrock Choi ,  Kangwook Heo

    IPC: H01L51/52 ,  H01L27/32

    Abstract: A display device may include a pixel electrode, a pixel defining layer on the pixel electrode and having a pixel opening that exposes at least a portion of the pixel electrode, an emission layer on the pixel electrode in the pixel opening, an opposite electrode on the emission layer, a first refractive layer on the opposite electrode and having a refractive opening, the first refractive layer having a first refractive index, and a second refractive layer on the first refractive layer and having a second refractive index greater than the first refractive index. A maximum inclination angle of a sidewall of the first refractive layer exposed by the refractive opening with respect to a lower surface of the first refractive layer may be between about 65 degrees and about 90 degrees.

    Organic light-emitting display apparatus
    5.
    发明授权
    Organic light-emitting display apparatus 有权

    公开(公告)号：US11233103B2

    公开(公告)日：2022-01-25

    申请号：US16541467

    申请日：2019-08-15

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Kiyoung Yeon ,  Haeyoung Yun ,  Junghyun Cho ,  Younggil Park ,  Dongyoun Yoo ,  Wooyoung Lee ,  Sooim Jeong

    IPC: H01L27/32 ,  H01L51/52

    Abstract: An organic light-emitting display apparatus includes a substrate; thin film transistors; a protective layer that includes a plurality of concave-convex units disposed in a pixel area; an organic light-emitting device disposed on the protective layer; and an encapsulation unit that covers the organic light-emitting device. Each of the concave-convex units protrudes from a surface of the protective layer. The organic light-emitting device includes a pixel electrode, an emission layer, and an opposite layer sequentially stacked on the concave-convex unit, and a distance between the pixel electrode and the opposite electrode is determined by 5%≤(a/b)≤18%, wherein ‘a’ is a vertical distance with respect to the surface of the protective layer between the pixel electrode and the opposite electrode and ‘b’ is a minimum distance between the pixel electrode and the opposite electrode.

    Organic light emitting diode display device
    7.
    发明授权
    Organic light emitting diode display device 有权

    公开(公告)号：US10916607B2

    公开(公告)日：2021-02-09

    申请号：US15868060

    申请日：2018-01-11

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Junghyun Cho ,  Haeyoung Yun

    IPC: H01L27/32 ,  H01L51/52

    Abstract: An organic light emitting diode display device includes a substrate, a protection layer on the substrate, the protection layer including a trench pattern and a recessed portion, a first electrode on the protection layer, a pixel defining layer on the protection layer, the pixel defining layer defining an opening that exposes at least a part of the first electrode, an organic light emitting layer on the first electrode, and a second electrode on the organic light emitting layer. The recessed portion overlaps the opening and is spaced apart from an edge of the opening in a plan view. The trench pattern includes a plurality of trenches extending along a first direction. Each trench of the plurality of trenches is spaced apart from the first electrode in a plan view and has a concave cross-section.

    Organic light emitting display device
    8.
    发明授权
    Organic light emitting display device 有权

    公开(公告)号：US10651428B2

    公开(公告)日：2020-05-12

    申请号：US16529030

    申请日：2019-08-01

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Soonil Jung ,  Haeyoung Yun ,  Junghyun Cho ,  Sanghyun Choi

    IPC: H01L51/52 ,  H01L27/32

    Abstract: An organic light emitting display device includes: a substrate; a first electrode on the substrate; a pixel defining layer on the substrate, the pixel defining layer defining a first opening which exposes at least a part of the first electrode; an organic light emitting layer on the first electrode; a second electrode on the organic light emitting layer; a thin film encapsulation layer on the second electrode; a sensing electrode on the thin film encapsulation layer; a low refractive index layer on the sensing electrode, the low refractive index layer defining a second opening which overlaps the first opening; and a high refractive index layer on the thin film encapsulation layer. A gap between an edge of the first opening and an edge of the second opening is constant irrespective of direction.

    Organic light emitting diode display device and manufacturing method thereof
    9.
    发明授权
    Organic light emitting diode display device and manufacturing method thereof 有权

    公开(公告)号：US10446626B2

    公开(公告)日：2019-10-15

    申请号：US15828630

    申请日：2017-12-01

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Haeyoung Yun ,  Junghyun Cho

    IPC: H01L27/32 ,  G09G3/30 ,  H01L51/10 ,  H01L51/52

    Abstract: An organic light emitting diode display device includes a passivation layer, a first electrode, a pixel defining layer, an organic emitting layer, and a second electrode. The passivation layer includes a trench and a recessed portion. The first electrode is on the passivation layer. The pixel defining layer is on the passivation layer and defines an opening which exposes at least a part of the first electrode. The organic light emitting layer is on the first electrode. The second electrode is on the light emitting layer. The recessed portion overlaps the opening and is spaced apart from an edge of the opening. The trench is spaced apart from the first electrode.

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