公开(公告)号：US20230171984A1

公开(公告)日：2023-06-01

申请号：US17851668

申请日：2022-06-28

Applicant: Samsung Display Co., Ltd.

Inventor： Jinwoo PARK ,  Boobae KIM ,  Seokjae LEE ,  Jaejin LEE

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

CPC classification number: H01L51/5056 ,  H01L51/5072 ,  H01L27/3218 ,  H01L51/5275 ,  H01L51/5092 ,  H01L27/3244

Abstract: A light-emitting device includes a first electrode; a second electrode facing the first electrode; m emitting parts located between the first electrode and the second electrode; and m−1 charge generation layers. A first hole transport region included in a first emitting part among the m emitting parts includes a first hole transport material, a second hole transport region included in a second emitting unit among the m emitting parts includes a second hole transport material, and a refractive index of the first hole transport material is greater than a refractive index of the second hole transport material.

公开(公告)号：US20190326542A1

公开(公告)日：2019-10-24

申请号：US16383362

申请日：2019-04-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jungjin YANG ,  Myunghwan KIM ,  Seohyun KIM ,  Ji-young KIM ,  Jinwoo PARK ,  Wonjun SONG ,  Taewoong YOO ,  Soojung YOUN ,  Kwanhee LEE ,  Seokjae LEE

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

Abstract: An organic electroluminescence display device includes: a substrate; a first electrode including a first sub-electrode and a second sub-electrode spaced apart from each other and on the substrate; a first light emitting unit on the first electrode; a charge generation unit on the first light emitting unit; a second light emitting unit on the charge generation unit; and a second electrode on the second light emitting unit, wherein the first light emitting unit comprises a first light emitting layer correspondingly on the first sub-electrode; and a second light emitting layer correspondingly on the second sub-electrode, wherein the second light emitting unit comprises a third light emitting layer correspondingly on the first light emitting layer; and a fourth light emitting layer correspondingly on the second light emitting layer.

公开(公告)号：US20230141265A1

公开(公告)日：2023-05-11

申请号：US18148194

申请日：2022-12-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jungjin YANG ,  Myunghwan KIM ,  Seohyun KIM ,  Ji-young KIM ,  Jinwoo PARK ,  Wonjun SONG ,  Taewoong YOO ,  Soojung YOUN ,  Kwanhee LEE ,  Seokjae LEE

IPC: H10K50/805 ,  H10K59/32 ,  H10K50/15 ,  H10K50/16

CPC classification number: H01L51/5203 ,  H01L27/3209 ,  H01L51/5056 ,  H01L51/5072

Abstract: An organic electroluminescence display device includes: a substrate; a first electrode including a first sub-electrode and a second sub-electrode spaced apart from each other and on the substrate; a first light emitting unit on the first electrode; a charge generation unit on the first light emitting unit; a second light emitting unit on the charge generation unit; and a second electrode on the second light emitting unit, wherein the first light emitting unit comprises a first light emitting layer correspondingly on the first sub-electrode; and a second light emitting layer correspondingly on the second sub-electrode, wherein the second light emitting unit comprises a third light emitting layer correspondingly on the first light emitting layer; and a fourth light emitting layer correspondingly on the second light emitting layer.

公开(公告)号：US20210313537A1

公开(公告)日：2021-10-07

申请号：US17352111

申请日：2021-06-18

Applicant: Samsung Display Co., Ltd.

Inventor： Jungjin YANG ,  Myunghwan KIM ,  Seohyun KIM ,  Ji-young KIM ,  Jinwoo PARK ,  Wonjun SONG ,  Taewoong YOO ,  Soojung YOUN ,  Kwanhee LEE ,  Seokjae LEE

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

Abstract: An organic electroluminescence display device includes: a substrate; a first electrode including a first sub-electrode and a second sub-electrode spaced apart from each other and on the substrate; a first light emitting unit on the first electrode; a charge generation unit on the first light emitting unit; a second light emitting unit on the charge generation unit; and a second electrode on the second light emitting unit, wherein the first light emitting unit comprises a first light emitting layer correspondingly on the first sub-electrode; and a second light emitting layer correspondingly on the second sub-electrode, wherein the second light emitting unit comprises a third light emitting layer correspondingly on the first light emitting layer; and a fourth light emitting layer correspondingly on the second light emitting layer.

公开(公告)号：US20240147755A1

公开(公告)日：2024-05-02

申请号：US18407374

申请日：2024-01-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jungjin YANG ,  Myunghwan KIM ,  Seohyun KIM ,  Ji-young KIM ,  Jinwoo PARK ,  Wonjun SONG ,  Taewoong YOO ,  Soojung YOUN ,  Kwanhee LEE ,  Seokjae LEE

IPC: H10K50/805 ,  H10K50/15 ,  H10K50/16 ,  H10K59/32

CPC classification number: H10K50/805 ,  H10K50/15 ,  H10K50/16 ,  H10K59/32

Abstract: An organic electroluminescence display device includes: a substrate; a first electrode including a first sub-electrode and a second sub-electrode spaced apart from each other and on the substrate; a first light emitting unit on the first electrode; a charge generation unit on the first light emitting unit; a second light emitting unit on the charge generation unit; and a second electrode on the second light emitting unit, wherein the first light emitting unit comprises a first light emitting layer correspondingly on the first sub-electrode; and a second light emitting layer correspondingly on the second sub-electrode, wherein the second light emitting unit comprises a third light emitting layer correspondingly on the first light emitting layer; and a fourth light emitting layer correspondingly on the second light emitting layer.