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公开(公告)号：US10720598B2
公开(公告)日：2020-07-21
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：US20200099006A1
公开(公告)日：2020-03-26
申请号：US16693382
申请日：2019-11-25
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 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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公开(公告)号：US10008556B2
公开(公告)日：2018-06-26
申请号：US15245881
申请日：2016-08-24
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jiyoung Choung
CPC classification number: H01L27/3279 , H01L27/3216 , H01L27/3218 , H01L51/5225 , H01L51/5228
Abstract: An organic light-emitting display device includes a substrate including a display area and a peripheral area surrounding the display area. The display area includes a plurality of pixel regions including a plurality of pixels including pixel electrodes and non-pixel regions between the pixel regions. The pixel electrodes are spaced apart from each other, with a pixel-defining layer above the plurality of pixel electrodes and exposing the plurality of pixel electrodes. A plurality of intermediate layers respectively above the plurality of pixel electrodes include an emission layer. A plurality of opposite electrodes respectively face the plurality of pixel electrodes and are spaced apart from each other. A plurality of connection electrodes that connect the plurality of opposite electrodes are in the non-pixel regions. A power line electrically connected to at least one of the plurality of connection electrodes is in the peripheral area.
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公开(公告)号：US09859344B2
公开(公告)日：2018-01-02
申请号：US14838390
申请日：2015-08-28
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jiyoung Choung , Jungsun Park , Minsoo Shin , Insung Hwang
CPC classification number: H01L27/3246 , H01L27/3211 , H01L27/3216 , H01L27/3218 , H01L51/5225
Abstract: An organic light-emitting display device, including a substrate that includes a plurality of first emission portions that realize a first color and a plurality of second emission portions that realize a second color; a pixel-defining film that defines the plurality of first emission portions and the plurality of second emission portions; a plurality of pixel electrodes that are separate from each other and respectively correspond to the plurality of first emission portions; and a first stacked structure that includes an intermediate layer and a counter electrode on the intermediate layer, the intermediate layer including an organic emission layer emitting light of the first color, the first stacked structure further including first emission pattern portions respectively corresponding to the plurality of first emission portions, and first connection pattern portions on the pixel-defining film, the first connection pattern portions connecting the first emission pattern portions.
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公开(公告)号：US11600807B2
公开(公告)日：2023-03-07
申请号：US17250662
申请日：2019-01-25
Applicant: Samsung Display Co., Ltd.
Inventor： Ji-Hee Son , Sungchul Kim , Jiyoung Choung
Abstract: A method of manufacturing a display apparatus includes: forming a first lower lift-off layer, a first upper lift-off layer, and a first photoresist layer on a substrate on which a first pixel electrode is formed; forming a first masking layer including a first photoresist pattern, a first upper lift-off pattern, and a first lower lift-off pattern, which expose the first pixel electrode, by partially removing the first photoresist layer, the first upper lift-off layer, and the first lower lift-off layer; forming a first light emitting layer and a first counter electrode on the first pixel electrode by using the first masking layer; forming a first passivation layer on the first counter electrode; and removing the first masking layer.
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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：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：US10693068B2
公开(公告)日：2020-06-23
申请号：US15657439
申请日：2017-07-24
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Joongu Lee , Yeonhwa Lee , Sehoon Jeong , Jiyoung Choung
Abstract: Provided are an organic light-emitting display apparatus and a method of manufacturing the same. The organic light-emitting display apparatus includes a substrate; lower electrodes, the lower electrodes being on the substrate and spaced apart from one another; a pixel-defining film, the pixel-defining film having portions that cover ends of the lower electrodes; upper electrodes, an upper electrode corresponding to each lower electrode, each upper electrode including a first portion contacting the corresponding lower electrode and a second portion contacting the pixel-defining film; organic functional layers, each including an emission layer, an organic functional layer corresponding to each upper electrode and disposed thereon; and an electrode on the organic functional layers.
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公开(公告)号：US10529956B2
公开(公告)日：2020-01-07
申请号：US16031246
申请日：2018-07-10
Applicant: Samsung Display Co., Ltd.
Inventor： Younggil Kwon , Jiyoung Choung
Abstract: A method of manufacturing a display device includes forming a pixel-defining layer including an opening corresponding to a pixel electrode and a bank defining the opening, forming a first non-photosensitive layer on the pixel-defining layer, forming a temporary layer including a second non-photosensitive material different from a material of the first non-photosensitive layer on a portion of the first non-photosensitive layer, forming an inorganic material layer on the first non-photosensitive layer using the temporary layer such that the inorganic material layer includes a first open region corresponding to the opening, forming a second open region overlapping the first open region in the first non-photosensitive layer, wherein a width of the second open region is greater than a width of the first open region, and forming an intermediate layer on the pixel electrode by using the first non-photosensitive layer and the inorganic material layer as a template.
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公开(公告)号：US20190355932A1
公开(公告)日：2019-11-21
申请号：US16524941
申请日：2019-07-29
Applicant: Samsung Display Co., Ltd.
Inventor： Jiyoung Choung , Younggil Kwon , Duckjung Lee
Abstract: An organic light-emitting display device includes: first and second pixel electrodes (PEs); a pixel-defining layer (PDL) disposed on the first and second PEs, the pixel-defining layer including first and second openings respectively exposing the first and second PEs; first and second intermediate layers (ILs) respectively disposed on the first and second PEs exposed via the first and second openings, each of the first and second ILs including an emission layer; first and second opposite electrodes (OEs) respectively disposed on the first and second ILs, the first and second OEs having an island-shaped pattern; first and second protective layers (PLs) respectively disposed on the first and second OEs, the first and second PLs having an island-shaped pattern; and a connection layer disposed on the first and second PLs, the connection layer electrically connecting the first and second OEs to one another.
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