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公开(公告)号：US11283041B2
公开(公告)日：2022-03-22
申请号：US16696258
申请日：2019-11-26
Applicant: Samsung Display Co., Ltd.
Inventor： Yeonhwa Lee , Jaesik Kim , Jaeik Kim , Joongu Lee , Sehoon Jeong , Jiyoung Choung
Abstract: A display device includes: a circuit element layer comprising a transistor; a display element layer comprising a first electrode connected to the transistor, a second electrode facing the first electrode, an organic pattern between the first electrode and the second electrode, a pixel defining layer having an opening exposing the first electrode, an auxiliary electrode spaced apart from the opening to cover a portion of the pixel defining layer and connected to the second electrode, a first protection pattern covering the second electrode, and a second protection pattern covering the first protection pattern; and an encapsulation layer covering the display element layer, wherein the first protection pattern and the second protection pattern have stress in directions different from each other.
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公开(公告)号：US20180358584A1
公开(公告)日：2018-12-13
申请号：US15803131
申请日：2017-11-03
Applicant: Samsung Display Co., Ltd.
Inventor： Sehoon JEONG , Jaesik Kim , Jaeik Kim , Yeonhwa Lee , Joongu Lee
CPC classification number: H01L51/56 , H01L27/3244 , H01L27/3246 , H01L51/5012 , H01L51/5064 , H01L51/508
Abstract: A method of manufacturing an organic light-emitting display device includes: preparing a substrate including pixel electrodes; forming a pixel defining layer on the substrate, the pixel defining layer exposing a central portion of each of the pixel electrodes and covering an edge portion of each of the pixel electrodes; forming partitioning walls in correspondence with at least a portion of an upper surface of the pixel defining layer, the partitioning walls including a first resin; removing a solvent in the partitioning walls by baking the partitioning walls; forming a first mask layer filling a space between the partitioning walls and exposing a first pixel electrode among the pixel electrodes, the first mask layer including a second resin; and forming a first intermediate layer on the first pixel electrode.
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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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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：US11545653B2
公开(公告)日：2023-01-03
申请号：US17147955
申请日：2021-01-13
Applicant: Samsung Display Co., Ltd.
Inventor： Chanho Moon , Jaesik Kim , Jaeik Kim , Yeonhwa Lee , Joongu Lee
Abstract: A display device may include a pixel area and a transmission area adjacent to the pixel area, a circuit element disposed in the pixel area and including a transistor and a capacitor, a pixel electrode layer disposed in the pixel area and electrically connected to the circuit element, an emission layer disposed on the pixel electrode layer, an opposite electrode layer disposed on the emission layer, and a surface energy control layer disposed between the emission layer and the opposite electrode layer and including a perfluorinated material. The surface energy control layer may have a portion extending into the transmission area.
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Patent Agency Ranking
公开(公告)号：US11476436B2
公开(公告)日：2022-10-18
申请号：US16363813
申请日：2019-03-25
Applicant: Samsung Display Co., Ltd.
Inventor： Jaeik Kim , Jaesik Kim , Yeonhwa Lee , Joongu Lee , Sehoon Jeong , Jiyoung Choung
Abstract: An organic light-emitting display apparatus and a manufacturing method thereof have improved process stability and reliability by reducing damage to the organic light-emitting display apparatus during a manufacturing process. The organic light-emitting display apparatus includes: a substrate, a plurality of pixel electrodes, a pixel defining film, a plurality of hole control layers respectively arranged on the pixel electrodes, a plurality of emission layers respectively arranged on the hole control layers, a plurality of buffer layers respectively arranged on the emission layers, each of the buffer layers having a highest occupied molecular orbital (HOMO) energy level greater than the HOMO energy level of each of the plurality of emission layers, and an opposite electrode integrally provided over the buffer layers.
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公开(公告)号：US10608064B2
公开(公告)日：2020-03-31
申请号：US16538618
申请日：2019-08-12
Applicant: Samsung Display Co., Ltd.
Inventor： Joongu Lee , Jaesik Kim , Jaeik Kim , Yeonhwa Lee , Sehoon Jeong
Abstract: An organic light-emitting display device includes a first pixel electrode, a second pixel electrode, a pixel-defining layer disposed on the first pixel electrode and the second pixel electrode and exposing at least portions of the first pixel electrode and the second pixel electrode, a first stack disposed on the exposed portion of the first pixel electrode, a first protective layer, a second stack disposed on the exposed portion of the second pixel electrode, and a first inorganic conductive layer. The first stack includes a first intermediate layer including an emission layer and a first opposite electrode on the first intermediate layer. The first protective layer is disposed on the first stack. The second stack includes a second intermediate layer including an emission layer and a second opposite electrode on the second intermediate layer. The first inorganic conductive layer is disposed between the second pixel electrode and the second stack.
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公开(公告)号：US20190173046A1
公开(公告)日：2019-06-06
申请号：US16185876
申请日：2018-11-09
Applicant: Samsung Display Co., Ltd.
Inventor： Sehoon Jeong , Jaesik Kim , Jaeik Kim , Yeonhwa Lee , Joongu Lee , Jiyoung Choung
Abstract: A method includes: forming first and second pixel electrodes on a substrate; exposing upper surfaces of the first and second pixel electrodes; forming a pixel defining layer covering edges of the first and second pixel electrodes; sequentially forming a first lift-off layer, a first shape memory alloy layer, and a first photoresist; forming a first opening exposing an upper surface of the first pixel electrode by patterning the first lift-off layer, the first shape memory alloy layer, and the first photoresist; forming, on the first pixel electrode and the first photoresist, a first organic functional layer including a first emission layer; deforming an end portion of the first shape memory alloy layer, in the first opening, in a direction away from a horizontal surface of the substrate; forming a first protection layer over the first organic functional layer; and removing a remainder of the first lift-off layer.
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公开(公告)号：US10211430B2
公开(公告)日：2019-02-19
申请号：US15803131
申请日：2017-11-03
Applicant: Samsung Display Co., Ltd.
Inventor： Sehoon Jeong , Jaesik Kim , Jaeik Kim , Yeonhwa Lee , Joongu Lee
Abstract: A method of manufacturing an organic light-emitting display device includes: preparing a substrate including pixel electrodes; forming a pixel defining layer on the substrate, the pixel defining layer exposing a central portion of each of the pixel electrodes and covering an edge portion of each of the pixel electrodes; forming partitioning walls in correspondence with at least a portion of an upper surface of the pixel defining layer, the partitioning walls including a first resin; removing a solvent in the partitioning walls by baking the partitioning walls; forming a first mask layer filling a space between the partitioning walls and exposing a first pixel electrode among the pixel electrodes, the first mask layer including a second resin; and forming a first intermediate layer on the first pixel electrode.
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公开(公告)号：US12245476B2
公开(公告)日：2025-03-04
申请号：US17737132
申请日：2022-05-05
Applicant: Samsung Display Co., Ltd.
Inventor： Jaeik Kim , Hyejin Gwark , Arong Kim , Jungsun Park , Heemin Park , Yeonhwa Lee , Joongu Lee , Kyuhwan Hwang
IPC: H10K59/13 , H10K59/122 , H10K59/131
Abstract: A display device includes an auxiliary wiring located on a substrate; an insulating layer arranged on the auxiliary wiring, overlapping the auxiliary wiring in a plan view, and including an opening having a width greater than a width of the auxiliary wiring; a first electrode located on the insulating layer; a bank layer including an emission opening that overlaps the first electrode in a plan view; an intermediate layer overlapping the first electrode through an emission opening in a plan view and including an emission layer; a second electrode on the intermediate layer; and an auxiliary layer arranged on the second electrode, wherein the auxiliary wiring includes sub-layers, and each of the second electrode and the auxiliary layer contacts a side surface of one of the sub-layers through the opening of the insulating layer.
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