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

IPC: H01L51/56 ,  H01L51/50 ,  H01L51/52

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.

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

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

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.

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

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32 ,  H01L51/00

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.

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

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

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.

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

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

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.

公开(公告)号：US10236328B2

公开(公告)日：2019-03-19

申请号：US15831829

申请日：2017-12-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaesik Kim ,  Yeonhwa Lee ,  Joongu Lee ,  Sehoon Jeong

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/00

Abstract: A method of manufacturing an organic light-emitting display device includes forming pixel electrodes on a substrate, forming a first protective layer with a first exposure portion that exposes a first pixel electrode of the pixel electrodes, forming on the first pixel electrode a first intermediate layer and a first blocking layer covering the first intermediate layer, removing the first protective layer, forming a second protective with a second exposure portion that exposes a second pixel electrode of the pixel electrodes, forming on the first pixel electrode a second intermediate layer and a second blocking layer covering the second intermediate layer, removing the second protective layer, forming a third protective with a third exposure portion that exposes a third pixel electrode of the pixel electrodes, and forming a third intermediate layer on the third pixel electrode, wherein each of the first and second blocking layers includes a self-assembled monolayer.

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

IPC: H01L51/56 ,  H01L27/32 ,  H01L51/50

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.

公开(公告)号：US09379325B2

公开(公告)日：2016-06-28

申请号：US14631051

申请日：2015-02-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Joongu Lee ,  Yeonhwa Lee ,  Jinbaek Choi

IPC: H01L51/56 ,  H01L27/32 ,  H01L51/00 ,  H01L51/50

CPC classification number: H01L51/0013 ,  H01L27/3206 ,  H01L27/3211 ,  H01L51/5012 ,  H01L51/56 ,  H01L2251/558

Abstract: A donor mask includes a base substrate, a light-to-heat conversion layer disposed on the base substrate and including a first upper surface portion and a second upper surface portion, and a reflection layer interposed between the base substrate and the light-to-heat conversion layer and including through holes corresponding to the first upper surface portion and the second upper surface portion. The first upper surface portion includes a first upper surface and a second upper surface connected to the first upper surface and inclined at an angle other than 90 degrees with respect to the first upper surface.

Abstract translation: 供体掩模包括基底基板，设置在基底基板上并包括第一上表面部分和第二上表面部分的光热转换层，以及介于基底基板和光 - 热转换层，并且包括对应于第一上表面部分和第二上表面部分的通孔。 第一上表面部分包括第一上表面和连接到第一上表面的第二上表面，并且相对于第一上表面以不同于90度的角度倾斜。

公开(公告)号：US12082446B2

公开(公告)日：2024-09-03

申请号：US17937720

申请日：2022-10-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaeik Kim ,  Jaesik Kim ,  Yeonhwa Lee ,  Joongu Lee

IPC: H10K59/122 ,  H10K50/844 ,  H10K59/121 ,  H10K71/00 ,  H10K102/00

CPC classification number: H10K59/122 ,  H10K50/844 ,  H10K59/121 ,  H10K71/00 ,  H10K2102/00

Abstract: A display apparatus having improved reliability and preventing or reducing damage to an organic light-emitting diode (OLED), and a method of manufacturing the display apparatus by arranging a protective layer on an opposite electrode during a photo-patterning process, are provided. The display apparatus includes: a substrate; a pixel electrode on the substrate; a pixel defining layer on the pixel electrode, the pixel defining layer having a first opening that exposes a center of the pixel electrode; an auxiliary electrode on the pixel defining layer; an intermediate layer on the pixel electrode; an opposite electrode facing the pixel electrode with the intermediate layer therebetween; a first protective layer on the opposite electrode; and a contact electrode on the first protective layer, the contact electrode electrically contacting the auxiliary electrode and the opposite electrode.

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.