公开(公告)号：US20220109083A1

公开(公告)日：2022-04-07

申请号：US17320925

申请日：2021-05-14

Applicant: Samsung Display Co., LTD.

Inventor： Chang Hee LEE ,  Dong Uk KIM ,  Se Hun KIM ,  Hyo Jin KO ,  Dong Hoon KWAK ,  Young Il KIM ,  Ji Yoon KIM

IPC: H01L33/20 ,  H01L33/38 ,  H01L27/15 ,  H01L33/00

Abstract: A light emitting element includes a first surface corresponding to an end of the light emitting element, a second surface corresponding to another end of the light emitting element, a first semiconductor layer adjacent to the first surface, the first semiconductor layer including a first type of semiconductor, a second semiconductor layer adjacent to the second surface, the second semiconductor layer including a second type of semiconductor different from the first type of semiconductor, and an active layer disposed between the first semiconductor layer and the second semiconductor layer. An area of the first surface is larger than an area of the second surface, and a distance between the first surface and the second surface is shorter than a length defined by the first surface.

公开(公告)号：US20240389403A1

公开(公告)日：2024-11-21

申请号：US18785925

申请日：2024-07-26

Applicant: Samsung Display Co., LTD.

Inventor： Soo Hyun PARK ,  Dong Hoon KWAK ,  Dong Hyun KIM ,  Seul Gi HAN

IPC: H10K59/122 ,  H10K59/35

Abstract: A display device includes a substrate, a first pixel electrode disposed on the substrate, and including a first region and a second region electrically connected to each other without overlapping each other, a pixel defining layer disposed on the substrate on which the first pixel electrode is disposed, the pixel defining layer defining a first opening penetrating the pixel defining layer in a thickness direction and exposing the first region of the first pixel electrode, and a second opening penetrating the pixel defining layer in the thickness direction, exposing the second region of the first pixel electrode and separated from the first opening, and a light emitting layer disposed in the first opening exposing the first region of the first pixel electrode and the second opening exposing the second region of the first pixel electrode.

公开(公告)号：US20230110744A1

公开(公告)日：2023-04-13

申请号：US17746444

申请日：2022-05-17

Applicant: Samsung Display Co., LTD.

Inventor： Ji Yoon KIM ,  Chang Hee LEE ,  Dong Hoon KWAK ,  Young Mo KOO

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

Abstract: A display device includes an auxiliary electrode disposed on a substrate, a bank layer disposed on the auxiliary electrode, a conductive layer disposed on the auxiliary electrode, the conductive layer including a base portion and protrusions protruded from the base portion, an organic layer disposed on the conductive layer, and a cathode electrode disposed on the organic layer, the cathode electrode being in contact with the protrusions.

公开(公告)号：US20220223772A1

公开(公告)日：2022-07-14

申请号：US17445801

申请日：2021-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Chang Hee LEE ,  Young Il KIM ,  Hyo Jin KO ,  Dong Hoon KWAK ,  Dong Uk KIM ,  Se Hun KIM ,  Ji Yoon KIM

IPC: H01L33/62 ,  H01L25/075 ,  H01L27/12 ,  H01L33/00 ,  H01L33/24

Abstract: A light emitting diode includes: a first semiconductor layer; an active layer located on one surface of the first semiconductor layer; a second semiconductor layer located on one surface of the active layer; an electrode layer located on one surface of the second semiconductor layer; and a bonding electrode layer located on the other surface of the first semiconductor layer.

公开(公告)号：US20220059629A1

公开(公告)日：2022-02-24

申请号：US17399223

申请日：2021-08-11

Applicant: Samsung Display Co., LTD.

Inventor： Soo Hyun PARK ,  Dong Hoon KWAK ,  Dong Hyun KIM ,  Seul Gi HAN

IPC: H01L27/32

Abstract: A display device includes a substrate, a first pixel electrode disposed on the substrate, and including a first region and a second region electrically connected to each other without overlapping each other, a pixel defining layer disposed on the substrate on which the first pixel electrode is disposed, the pixel defining layer defining a first opening penetrating the pixel defining layer in a thickness direction and exposing the first region of the first pixel electrode, and a second opening penetrating the pixel defining layer in the thickness direction, exposing the second region of the first pixel electrode and separated from the first opening, and a light emitting layer disposed in the first opening exposing the first region of the first pixel electrode and the second opening exposing the second region of the first pixel electrode.

公开(公告)号：US20200168830A1

公开(公告)日：2020-05-28

申请号：US16777549

申请日：2020-01-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Katsushi KISHIMOTO ,  Yoon Ho KANG ,  Dong Hoon KWAK

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

Abstract: An organic light-emitting device including an anode electrode, a hole injection layer on the anode electrode, a hole transport layer on the hole injection layer, an emissive layer on the hole transport layer, and a cathode electrode on the emissive layer. A material of the hole injection layer includes a nitrogen-containing compound having a quinoid structure and a nitrogen-containing compound having a benzenoid structure. A ratio of a peak intensity IB to a peak intensity IA (IB/IA) in a Fourier transform infrared spectroscopy (FTIR) spectrum of the material of the hole injection layer ranges from 1.5 to 2.5, the peak intensity IA and the peak intensity IB being further defined.

公开(公告)号：US20190280250A1

公开(公告)日：2019-09-12

申请号：US16400168

申请日：2019-05-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyang Shik KONG ,  Yoon Ho KANG ,  Dong Hoon KWAK ,  Sung Woong KIM ,  Yool Guk KIM ,  Jae Hoon KIM ,  Ye Seul NA ,  Seok Soon BACK ,  Jae Kwon HWANG

IPC: H01L51/56

Abstract: A method of manufacturing a light-emitting display device, the method including forming a first electrode on a substrate, the substrate including a plurality of pixel regions divided by a non-pixel region, in each of the pixel regions; forming a pixel defining layer, the pixel defining layer having a plurality of pixel openings, each of the pixel openings exposing the first electrode, on the substrate; forming a hole injection layer on the first electrode; forming a lyophilic layer on the hole injection layer to completely overlap the hole injection layer; forming a hole transport layer on the lyophilic layer; forming a light-emitting layer on the hole transport layer; and forming a second electrode on the light-emitting layer.

公开(公告)号：US20170352830A1

公开(公告)日：2017-12-07

申请号：US15441717

申请日：2017-02-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Katsushi KISHIMOTO ,  Yoon Ho KANG ,  Dong Hoon KWAK

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

CPC classification number: H01L51/5088 ,  H01L51/0026 ,  H01L51/0059 ,  H01L51/5004 ,  H01L51/5008 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5064 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/56 ,  H01L2251/552

Abstract: An organic light-emitting device including an anode electrode, a hole injection layer on the anode electrode, a hole transport layer on the hole injection layer, an emissive layer on the hole transport layer, and a cathode electrode on the emissive layer. A material of the hole injection layer includes a nitrogen-containing compound having a quinoid structure and a nitrogen-containing compound having a benzenoid structure. A ratio of a peak intensity IB to a peak intensity IA (IB/IA) in a Fourier transform infrared spectroscopy (FTIR) spectrum of the material of the hole injection layer ranges from 1.5 to 2.5, the peak intensity IA and the peak intensity IB being further defined.

公开(公告)号：US20160343940A1

公开(公告)日：2016-11-24

申请号：US14884798

申请日：2015-10-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyang Shik KONG ,  Yoon Ho KANG ,  Dong Hoon KWAK ,  Sung Woong KIM ,  Yool Guk KIM ,  Jae Hoon KIM ,  Ye Seul NA ,  Seok Soon BACK ,  Jae Kwon HWANG

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

CPC classification number: H01L51/0005 ,  H01L27/3246 ,  H01L51/0035 ,  H01L51/0037 ,  H01L51/0059 ,  H01L51/0091 ,  H01L51/5056 ,  H01L51/56

Abstract: A method of manufacturing a light-emitting display device, the method including forming a first electrode on a substrate, the substrate including a plurality of pixel regions divided by a non-pixel region, in each of the pixel regions; forming a pixel defining layer, the pixel defining layer having a plurality of pixel openings, each of the pixel openings exposing the first electrode, on the substrate; forming a hole injection layer on the first electrode; forming a lyophilic layer on the hole injection layer to completely overlap the hole injection layer; forming a hole transport layer on the lyophilic layer; forming a light-emitting layer on the hole transport layer; and forming a second electrode on the light-emitting layer.

Abstract translation: 一种制造发光显示装置的方法，所述方法包括在每个所述像素区域中在基板上形成第一电极，所述基板包括由非像素区域划分的多个像素区域; 形成像素限定层，所述像素限定层在所述基板上具有多个像素开口，每个所述像素开口暴露所述第一电极; 在所述第一电极上形成空穴注入层; 在空穴注入层上形成亲液层，与空穴注入层完全重叠; 在亲液层上形成空穴传输层; 在空穴传输层上形成发光层; 以及在所述发光层上形成第二电极。