公开(公告)号：US12016191B2

公开(公告)日：2024-06-18

申请号：US17341205

申请日：2021-06-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Soohyun Park ,  Donghoon Kwak ,  Seulgi Han

IPC: H01L51/50 ,  H01L27/32 ,  H10K50/11 ,  H10K50/15 ,  H10K50/17 ,  H10K59/122 ,  H10K59/35 ,  H10K101/40 ,  H10K102/00

CPC classification number: H10K50/15 ,  H10K50/11 ,  H10K50/17 ,  H10K59/122 ,  H10K59/35 ,  H10K2101/40 ,  H10K2102/351

Abstract: An electronic device includes a base layer, a first electrode disposed on the base layer, a pixel defining layer disposed on the base layer and having an opening that exposes an upper surface of the first electrode, a hole transport region disposed in the opening and having a thickness that gradually decreases from a center of the opening toward a side surface of the pixel defining layer, an emission layer disposed on the hole transport region and having a thickness that gradually increases from the center of the opening toward the side surface of the pixel defining layer, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. This electronic device may increase a light-emitting area exhibiting uniform (or substantially uniform) light-emitting characteristics and exhibit high light-emitting efficiency.

公开(公告)号：US20210391394A1

公开(公告)日：2021-12-16

申请号：US17157962

申请日：2021-01-25

Applicant: Samsung Display Co., Ltd

Inventor： Dongha Lee ,  Donghoon Kwak ,  Dukki Kim ,  Sehun Kim ,  Seoksoon Back

IPC: H01L27/32 ,  H01L51/56 ,  C09D11/30 ,  H01L51/00

Abstract: An ink for a display device, the ink includes: an organic material, wherein the organic material has a molecular weight greater than about 500 and less than about 1,000,000, and the organic material in the ink has a concentration and the molecular weight of the organic material satisfy: y>−3.518*ln(x)+45.59, wherein y is the concentration of the organic material, and x is the molecular weight of the organic material.

公开(公告)号：US12167643B2

公开(公告)日：2024-12-10

申请号：US18233651

申请日：2023-08-14

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha Lee ,  Donghoon Kwak ,  Dukki Kim ,  Sehun Kim ,  Seoksoon Back

IPC: H10K71/00 ,  C09D11/30 ,  C09K11/06 ,  H10K59/122 ,  H10K85/10 ,  H10K59/12

Abstract: An ink for a display device, the ink includes: an organic material, wherein the organic material has a molecular weight greater than about 500 and less than about 1,000,000, and the organic material in the ink has a concentration and the molecular weight of the organic material satisfy: y

公开(公告)号：US10998533B2

公开(公告)日：2021-05-04

申请号：US16454497

申请日：2019-06-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Heunggyu Kim ,  Donghoon Kwak ,  Dukki Kim

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

Abstract: Provided is a method for manufacturing a display device. The method may comprise providing a substrate, providing a first organic solution which includes a mixed solvent containing a first solvent having a first boiling point and a second solvent having a second boiling point, conducting a first depressurized drying to form a second organic solution, and conducting a second depressurized drying to form a preliminary organic layer.

公开(公告)号：US20250098436A1

公开(公告)日：2025-03-20

申请号：US18968531

申请日：2024-12-04

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha Lee ,  Donghoon Kwak ,  Dukki Kim ,  Sehun Kim ,  Seoksoon Back

IPC: H10K59/122 ,  C09D11/30 ,  C09K11/06 ,  H10K59/12 ,  H10K71/00 ,  H10K85/10

Abstract: An ink for a display device, the ink includes: an organic material, wherein the organic material has a molecular weight greater than about 500 and less than about 1,000,000, and the organic material in the ink has a concentration and the molecular weight of the organic material satisfy: y

公开(公告)号：US20230389366A1

公开(公告)日：2023-11-30

申请号：US18233651

申请日：2023-08-14

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha LEE ,  Donghoon Kwak ,  Dukki Kim ,  Sehun Kim ,  Seoksoon Back

IPC: H10K59/122 ,  C09D11/30 ,  H10K71/00 ,  H10K85/10 ,  C09K11/06

CPC classification number: H10K59/122 ,  C09D11/30 ,  H10K71/00 ,  H10K85/141 ,  C09K11/06 ,  H10K59/1201

Abstract: An ink for a display device, the ink includes: an organic material, wherein the organic material has a molecular weight greater than about 500 and less than about 1,000,000, and the organic material in the ink has a concentration and the molecular weight of the organic material satisfy:


y

公开(公告)号：US11349078B2

公开(公告)日：2022-05-31

申请号：US16779428

申请日：2020-01-31

Applicant: Samsung Display Co., Ltd.

Inventor： Dukki Kim ,  Jaekook Ha ,  Sehun Kim ,  Dongwoo Shin ,  Donghoon Kwak ,  Junwoo Park

IPC: H01L51/50 ,  H01L51/00 ,  C09D11/52 ,  C09D11/36 ,  C09D11/102

Abstract: Provided are a composition for forming an organic light-emitting device, a method of preparing an organic light-emitting device, and an organic light-emitting device. The method of preparing an organic light-emitting device includes: forming an organic layer including an emission layer on a first electrode, wherein the forming of the organic layer includes performing a solution process using a composition for forming an organic light-emitting device, the composition for forming an organic light-emitting device includes n kinds of solvent, a solvent (Sv1) having the highest boiling point among the n kinds of solvent and a solvent (Sv2) having the second highest boiling point among the n kinds of solvent satisfy Equation 1, n is an integer from 2 to 10, and the solvent (Sv1) having the highest boiling point among the n kinds of solvent is a compound represented by Formula 1.

公开(公告)号：US11800769B2

公开(公告)日：2023-10-24

申请号：US17148433

申请日：2021-01-13

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha Lee ,  Wonhee Nam ,  Donghoon Kwak ,  Sukbeom You ,  Atsushi Kitabayashi

IPC: H10K59/35 ,  H10K59/38 ,  H10K59/122

CPC classification number: H10K59/352 ,  H10K59/122 ,  H10K59/38

Abstract: An organic light-emitting display apparatus includes: a substrate; a 1-1st pixel electrode in a 1-1st pixel to emit light of a first wavelength range and a 1-2nd pixel electrode in a 1-2nd pixel to emit light of the first wavelength range. The 1-1st pixel and the 1-2nd pixel are over the substrate; a pixel-defining layer covering an edge of the 1-1st pixel electrode and an edge of the 1-2nd pixel electrode so as to define a 1-1st exposed upper surface and a 1-2nd exposed upper surface; a 1-1st emission layer over the 1-1st pixel electrode and to generate the light of the first wavelength range and a 1-2nd emission layer over the 1-2nd pixel electrode and to generate the light of the first wavelength range; and an opposite electrode over the 1-1st emission layer and the 1-2nd emission layer.

公开(公告)号：US11778864B2

公开(公告)日：2023-10-03

申请号：US17157962

申请日：2021-01-25

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha Lee ,  Donghoon Kwak ,  Dukki Kim ,  Sehun Kim ,  Seoksoon Back

IPC: H10K71/00 ,  C09D11/30 ,  C09K11/06 ,  H10K59/122 ,  H10K85/10 ,  H10K59/12

CPC classification number: H10K59/122 ,  C09D11/30 ,  C09K11/06 ,  H10K71/00 ,  H10K85/141 ,  H10K59/1201

Abstract: An ink for a display device, the ink includes: an organic material, wherein the organic material has a molecular weight greater than about 500 and less than about 1,000,000, and the organic material in the ink has a concentration and the molecular weight of the organic material satisfy:

y>−3.518*1n(x)+45.59,

wherein y is the concentration of the organic material, and x is the molecular weight of the organic material.

公开(公告)号：US20210335905A1

公开(公告)日：2021-10-28

申请号：US17148433

申请日：2021-01-13

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha Lee ,  Wonhee Nam ,  Donghoon Kwak ,  Sukbeom You ,  Atsushi Kitabayashi

IPC: H01L27/32

Abstract: An organic light-emitting display apparatus includes: a substrate; a 1-1st pixel electrode in a 1-1st pixel to emit light of a first wavelength range and a 1-2nd pixel electrode in a 1-2nd pixel to emit light of the first wavelength range. The 1-1st pixel and the 1-2nd pixel are over the substrate; a pixel-defining layer covering an edge of the 1-1st pixel electrode and an edge of the 1-2nd pixel electrode so as to define a 1-1st exposed upper surface and a 1-2nd exposed upper surface; a 1-1st emission layer over the 1-1st pixel electrode and to generate the light of the first wavelength range and a 1-2nd emission layer over the 1-2nd pixel electrode and to generate the light of the first wavelength range; and an opposite electrode over the 1-1st emission layer and the 1-2nd emission layer.