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公开(公告)号：US20240276819A1
公开(公告)日：2024-08-15
申请号：US18439272
申请日：2024-02-12
Applicant: Samsung Display Co., Ltd.
Inventor： Jaeik Kim , Hyejin Gwark , Hwi Kim , Jungsun Park , Seungyong Song , Duckjung Lee , Yeonhwa Lee , Joongu Lee
IPC: H10K59/131 , H10K59/40 , H10K59/80 , H10K102/00
CPC classification number: H10K59/1315 , H10K59/40 , H10K59/873 , H10K2102/351
Abstract: A display device includes a substrate, a pixel electrode disposed on the substrate, a common layer disposed on the pixel electrode, and a counter electrode disposed on the common layer, wherein a film density of the common layer is in a range of about 3 g/cm3 to about 10 g/cm3.
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公开(公告)号：US20230172005A1
公开(公告)日：2023-06-01
申请号：US17990448
申请日：2022-11-18
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Heemin Park , Arong Kim , Jungsun Park , Yeonhwa Lee , Hyejin Gwark , Jaeik Kim , Joongu Lee , Kyuhwan Hwang
IPC: H01L27/32
CPC classification number: H01L27/3246
Abstract: An organic light-emitting display device includes: a substrate; an insulating layer disposed on the substrate; a first electrode disposed on the insulating layer; a pixel defining layer disposed on the first electrode and defining an emission area by an opening that exposes at least part of the first electrode; a metal layer disposed on the pixel defining layer and in a non-emission area around the emission area; an organic light-emitting layer disposed on the first electrode in the opening; and a second electrode disposed on the organic light-emitting layer in the emission area and the non-emission area, where the metal layer is disposed between the pixel defining layer and the second electrode in the non-emission area.
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公开(公告)号：US10749141B2
公开(公告)日：2020-08-18
申请号：US16260116
申请日：2019-01-29
Applicant: Samsung Display Co., Ltd.
Inventor： Jungsun Park , Hyunsung Bang , Duckjung Lee , Jiyoung Choung , Arong Kim
Abstract: A method of manufacturing an organic light-emitting display apparatus includes: forming a pixel electrode on a substrate; forming a pixel-defining layer (PDL) having an opening exposing at least a part of the pixel electrode; forming an intermediate layer including a central portion disposed on the pixel electrode, an edge portion that extends from the central portion and contacts the PDL, at least one common layer, and an organic emission layer; forming a protective layer including a central portion disposed on the central portion of the intermediate layer and an edge portion that extends from the central portion of the protective layer and contacts the PDL; and forming an opposite electrode on the PDL, the opposite electrode having an opening exposing at least a part of the protective layer and electrically connected to the protective layer.
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公开(公告)号：US10325970B2
公开(公告)日：2019-06-18
申请号：US15838091
申请日：2017-12-11
Applicant: Samsung Display Co., Ltd.
Inventor： Hyunsung Bang , Arong Kim , Jungsun Park , Duckjung Lee , Jiyoung Choung
Abstract: A display device including a first pixel electrode and a second pixel electrode disposed adjacent to each other on a substrate; a pixel defining layer including a first opening corresponding to the first pixel electrode, a second opening corresponding to the second pixel electrode, and a first convex portion arranged adjacent to the first opening; a first intermediate layer arranged on the first pixel electrode to correspond to the first opening and including a first emission layer; and a first conductive inorganic layer arranged on the first intermediate layer to correspond to the first opening. At least one end of the first conductive inorganic layer extends beyond an end of the first intermediate layer and is disposed on the pixel defining layer between the first opening and the second opening.
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公开(公告)号：US20230133603A1
公开(公告)日：2023-05-04
申请号：US17967707
申请日：2022-10-17
Applicant: Samsung Display Co., Ltd.
Inventor： Heemin Park , Joongu Lee , Hyejin Gwark , Arong Kim , Jaeik Kim , Jungsun Park , Yeonhwa Lee , Kyuhwan Hwang
Abstract: A display apparatus includes: an auxiliary line comprising a main sub-layer and an upper layer on the main sub-layer; an insulating layer comprising a first opening having a greater width than the auxiliary line, wherein the first opening overlaps the auxiliary line; a first electrode on the insulating layer; an intermediate layer overlapping the first electrode and comprising an emission layer; an auxiliary layer, at least a portion of which overlaps the auxiliary line; and a second electrode on the auxiliary layer, wherein the upper layer of the auxiliary line comprises a tip protruding, in a lateral direction, from a first point, in which a side surface and an upper surface of the main sub-layer meet each other, and being curved upwards from the first point, and the second electrode contacts the side surface of the main sub-layer through the first opening of the insulating layer.
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Patent Agency Ranking
公开(公告)号：US11621306B2
公开(公告)日：2023-04-04
申请号：US17161734
申请日：2021-01-29
Applicant: Samsung Display Co., Ltd.
Inventor： Jaeik Kim , Yeonhwa Lee , Joongu Lee , Hye Jin Gwark , Jungsun Park , Heemin Park
Abstract: A display apparatus of an embodiment includes a first area and a second area disposed adjacent to the first area in a plan view, and includes a first electrode disposed in the first area and a second electrode disposed in the second area, a hole transport region disposed on the first electrode and the second electrode, an emission layer disposed on the hole transport region to overlap the first electrode and not to overlap the second electrode, a buffer layer disposed on the emission layer in the first area and the second area, a surface energy controlling layer disposed on the buffer layer to overlap the second electrode and not to overlap the first electrode, and a third electrode disposed on the buffer layer to overlap the first electrode and not to overlap the surface energy controlling layer. Such a display apparatus may have improved transmittance.
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公开(公告)号：US11101335B2
公开(公告)日：2021-08-24
申请号：US16740551
申请日：2020-01-13
Applicant: Samsung Display Co., Ltd.
Inventor： Duckjung Lee , Arong Kim , Jungsun Park , Hyunsung Bang , Jiyoung Choung
Abstract: An organic light-emitting display apparatus including a substrate; a pixel electrode on the substrate; a pixel-defining layer including an opening exposing at least a portion of the pixel electrode; an intermediate layer including a center area on the pixel electrode and a side area extending from the center area and arranged on the pixel-defining layer, the intermediate layer including one or more common layers and an emission layer; a protective layer covering top surfaces of the center area and the side area of the intermediate layer and exposing at least a portion of the pixel-defining layer; and an opposite electrode spaced apart from the intermediate layer by the protective layer and arranged on the protective layer and portions of the pixel-defining layer, the portions being exposed by the protective layer.
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公开(公告)号：US11049916B2
公开(公告)日：2021-06-29
申请号：US16239085
申请日：2019-01-03
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Duckjung Lee , Hyejin Gwark , Arong Kim , Jungsun Park , Hyunsung Bang
Abstract: An organic light-emitting display apparatus, including a substrate including a plurality of pixel areas and non-pixel areas in a display area, a plurality of pixel electrodes respectively corresponding to the plurality of pixel areas, a pixel-defining layer including a cover portion and openings, wherein the cover portion covers an edge of each of the plurality of pixel electrodes, and each of the openings exposes a central portion of a pixel electrode among the plurality of pixel electrodes, an auxiliary electrode located such that the auxiliary electrode corresponds to at least a portion of a top surface of the cover portion, and an intermediate layer and a counter electrode, each located in the openings. The pixel-defining layer may have an under-cut structure in which the at least a portion of the top surface of the cover portion is recessed from the auxiliary electrode.
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公开(公告)号：US10431742B2
公开(公告)日：2019-10-01
申请号：US15860466
申请日：2018-01-02
Applicant: Samsung Display Co., Ltd.
Inventor： Arong Kim , Jungsun Park , Hyunsung Bang , Duckjung Lee , Jiyoung Choung
IPC: H01L51/00 , G03F7/09 , G03F7/095 , G03F7/16 , G03F7/20 , G03F7/26 , H01L51/56 , H01L27/32 , H01L51/52 , H01L51/50
Abstract: A method of manufacturing an organic light-emitting display apparatus including forming a lift-off layer on a substrate including a first electrode, the lift-off layer including a fluoropolymer; sequentially forming a barrier layer and a photoresist on the lift-off layer, the barrier layer including an inorganic material; patterning the photoresist and the barrier layer to remove a first portion of the photoresist corresponding to the first electrode such that a second portion other than the first portion remains; etching a portion of the lift-off layer corresponding to the first portion to expose the first electrode; forming an organic functional layer and an auxiliary electrode over the first electrode and the second portion of the photoresist, the organic functional layer including an emission layer; and removing the lift-off layer, the barrier layer, the photoresist, the organic functional layer, and the auxiliary electrode remaining on the second portion.
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公开(公告)号：US20180047930A1
公开(公告)日：2018-02-15
申请号：US15659569
申请日：2017-07-25
Applicant: Samsung Display Co., Ltd.
Inventor： Duckjung LEE , Arong Kim , Jungsun Park , Hyunsung Bang , Jiyoung Choung
CPC classification number: H01L51/5092 , H01L27/3211 , H01L27/3218 , H01L51/0018 , H01L51/0096 , H01L51/5064 , H01L51/5209 , H01L51/5231 , H01L51/56
Abstract: An organic light-emitting display apparatus including: a first electrode of a first group; a first organic functional layer covering the first electrode of the first group and including a first emission layer; a second electrode of the first group covering the first organic functional layer; a first electrode of a second group separate from the first electrode of the first group; a second organic functional layer separate from the first organic functional layer, covering the first electrode of the second group, having a larger area than the first organic functional layer, and including a second emission layer; a second electrode of the second group covering the second organic functional layer; and a common electrode integrally and commonly disposed on the second electrode of the first group and the second electrode of the second group.
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