公开(公告)号：US20220085331A1

公开(公告)日：2022-03-17

申请号：US17417422

申请日：2019-10-14

Applicant: Samsung Display Co., Ltd.

Inventor： Byunghan YOO ,  Geebum KIM ,  Sangwoo KIM ,  Chaungi CHOI ,  Jungha SON ,  Taekyung AHN ,  Kijune LEE ,  Jaeik LIM

IPC: H01L51/52 ,  H01L27/32

Abstract: A display device having an improved light-extraction efficiency and a reduced color sense variation according to a viewing angle includes a pixel electrode on a substrate, an insulating layer defining an emission area via an opening that covers edges of the pixel electrode and exposes a center portion of the pixel electrode, a first light extraction pattern on the pixel electrode, the first light extraction pattern having a side surface inclined at a first angle, and a second light extraction pattern surrounding the first light extraction pattern on an outer portion of the first light extraction pattern, the second light extraction pattern having a side surface inclined at a second angle that is less than the first angle.

公开(公告)号：US20200227489A1

公开(公告)日：2020-07-16

申请号：US16581002

申请日：2019-09-24

Applicant: Samsung Display Co., Ltd.

Inventor： Geebum KIM ,  Jungha SON ,  Byunghan YOO ,  Chaungi CHOI ,  Sangwoo KIM ,  Taekyung AHN ,  Kijune LEE ,  Jaeik LIM

IPC: H01L27/32 ,  H01L51/52

Abstract: An organic light-emitting display apparatus implemented by using a plurality of organic light-emitting diodes on a substrate and including a first pixel and a second pixel respectively emitting light of different colors, includes: a pixel-defining layer including a first opening and a second opening, the first opening defining an emission area of the first pixel, and the second opening defining an emission area of the second pixel; a total reflective layer over the pixel-defining layer, the total reflective layer including a first upper opening corresponding to the first pixel and a second upper opening corresponding to the second pixel; and a planarization layer covering the total reflective layer and having a refractive index greater than a refractive index of the total reflective layer, wherein an area of the first upper opening is different from an area of the second upper opening.

公开(公告)号：US20190244000A1

公开(公告)日：2019-08-08

申请号：US16119500

申请日：2018-08-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jungha SON ,  Jihun RYU ,  Wonsang PARK ,  Taekyung AHN ,  Byunghan YOO ,  Hanyung JUNG ,  Chaungi CHOI

IPC: G06K9/00 ,  H01L27/32

Abstract: A fingerprint sensing unit includes a substrate; a buffer layer disposed on the substrate; a thin film transistor disposed on the buffer layer; an insulating layer disposed on the buffer layer and that has an opening that exposes at least a portion of the buffer layer; and a sensing electrode disposed on the portion of the buffer layer that is exposed by the opening, where the sensing electrode is connected to the thin film transistor. A display device that includes the fingerprint sensing unit can reduce internal reflection of external light