公开(公告)号：US11910626B2

公开(公告)日：2024-02-20

申请号：US17033774

申请日：2020-09-26

Applicant: Samsung Display Co., Ltd.

Inventor： Hyomin Kim ,  Illsoo Park ,  Sijin Sung ,  Gina Yoo ,  Sunhwa Kim ,  Jaehong Kim ,  Heeseong Jeong ,  Jongseok Han

IPC: H10K50/11 ,  H10K59/35 ,  H10K85/60 ,  H10K50/17 ,  H10K101/40 ,  H10K101/30 ,  H10K102/00

CPC classification number: H10K50/11 ,  H10K59/35 ,  H10K85/636 ,  H10K50/17 ,  H10K85/6572 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2102/351

Abstract: A light-emitting device includes: a substrate including a first subpixel, as second subpixel, and a third subpixel; a plurality of first electrodes respectively in the first subpixel, the second subpixel, and the third subpixel of the substrate; a second electrode facing the first electrode; an emission layer located between the plurality of first electrodes and the second electrode; a hole injection layer between the plurality of first electrodes and the emission layer; a first common layer between the hole injection layer and the emission layer, the first common layer integrated with the first subpixel, the second subpixel, and the third subpixel; a second common layer between the hole injection layer and the first common layer, the second common layer integrated with the first subpixel, the second subpixel, and the third subpixel, wherein the first common layer and the second common layer satisfy certain conditions. In particular, the first common layer consists of a blue host, and the blue host satisfies Equations 1 and 2:

|EHOMO_BH|>|EHOMO_REML|  Equation 1

|EHOMO_BH|>|EHOMO_GEML|.  Equation 2

公开(公告)号：US12207532B2

公开(公告)日：2025-01-21

申请号：US17574184

申请日：2022-01-12

Applicant: Samsung Display Co., Ltd.

Inventor： Sijin Sung ,  Jaehong Kim ,  Hyomin Kim ,  Illsoo Park ,  Jongseok Han

IPC: H01L29/08 ,  B08B5/00 ,  H10K50/81 ,  H10K59/122 ,  H10K71/00 ,  H10K59/12 ,  H10K102/10

Abstract: A method of manufacturing a display apparatus includes forming a first electrode on a substrate, forming a pixel-defining layer on the first electrode, the pixel-defining layer including an opening through which at least part of the first electrode is exposed, and performing a first dry cleaning on a surface of the at least part of the first electrode that is exposed through the opening. An indium-fluorine bond is formed on the surface of the at least part of the first electrode through the first dry cleaning.

公开(公告)号：US20230380205A1

公开(公告)日：2023-11-23

申请号：US18316832

申请日：2023-05-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jongseok Han ,  Dalho Kim ,  Illsoo Park ,  Heeseong Jeong ,  Jaehong Kim ,  Hyomin Kim ,  Eunji Park ,  Sijin Sung

IPC: H10K50/16 ,  H10K50/17 ,  H10K50/858

CPC classification number: H10K50/16 ,  H10K50/171 ,  H10K50/858

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer located between the first electrode and the second electrode; and an electron transport region located between the second electrode and the emission layer, wherein the electron transport region includes an electron injection layer including a first material and a second material, the first material and the second material each independently include an alkali metal, an alkaline earth metal, a rare earth metal, or any combination thereof, each of the first material and the second material does not include any halide of the alkali metal, and the first material and the second material are different from each other.

公开(公告)号：US20220190273A1

公开(公告)日：2022-06-16

申请号：US17518551

申请日：2021-11-03

Applicant: Samsung Display Co., Ltd.

Inventor： Jongseok Han ,  lllsoo Park ,  Jaehong Kim ,  Hyomin Kim ,  Sijin Sung ,  Heeseong Jeong

IPC: H01L51/50 ,  H01L51/56

Abstract: A display apparatus includes a substrate, a first electrode on the substrate, a second electrode on the first electrode, an emission layer between the first electrode and the second electrode, and a hole transport layer located between the first electrode and the emission layer, and including a first mixed layer in which a first material and a second material different from the first material are mixed with each other, wherein an absolute value of a difference between a Highest Occupied Molecular Orbital (HOMO) energy level of the first material and a HOMO energy level of the second material is about 0.3 eV or less.