公开(公告)号：US12127477B2

公开(公告)日：2024-10-22

申请号：US17329903

申请日：2021-05-25

Applicant: Samsung Display Co., Ltd.

Inventor： Jiyoung Song ,  Seulong Kim ,  Pilgu Kang ,  Eungyoung Park ,  Hajin Song ,  Hyekyun Lee ,  Soonchul Chang ,  Dongseob Jeong ,  Yangjin Cho ,  Jina Hur

IPC: H01L51/00 ,  H10K85/30 ,  H10K85/40 ,  H10K85/60 ,  H10K50/11 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K101/10

CPC classification number: H10K85/654 ,  H10K85/342 ,  H10K85/346 ,  H10K85/40 ,  H10K85/622 ,  H10K85/623 ,  H10K85/624 ,  H10K85/633 ,  H10K85/636 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/11 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/171 ,  H10K50/18 ,  H10K2101/10

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission region between the first electrode and the second electrode and including a first emission layer and a second emission layer; and a hole blocking layer between the first emission layer and the first electrode, or between the second emission layer and the second electrode, wherein the second emission layer may be between the first emission layer and the hole blocking layer, the first emission layer may include a first host and a first light-emitting material, the second emission layer may include a second host and a second light-emitting material, and the first light-emitting material and the second light-emitting material may respectively be included in the first emission layer and the second emission layer at an identical ratio.

公开(公告)号：US11925045B2

公开(公告)日：2024-03-05

申请号：US16881591

申请日：2020-05-22

Applicant: Samsung Display Co., Ltd.

Inventor： Seulong Kim ,  Taekyung Kim ,  Pilgu Kang ,  Jiyoung Kwon ,  Eungyoung Park ,  Jiyoung Song ,  Soon-Chul Chang ,  Dongseob Jeong

IPC: H10K50/13 ,  H10K50/18 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/805 ,  H10K59/32

CPC classification number: H10K50/13 ,  H10K50/156 ,  H10K50/157 ,  H10K50/166 ,  H10K50/171 ,  H10K50/18 ,  H10K50/805 ,  H10K59/32

Abstract: A light emitting device includes a first electrode, a first stack on the first electrode, a first charge generation layer on the first stack, a second stack on the first charge generation layer, and a second electrode on the second stack. The first stack includes a first light emitting layer and a plurality of first organic layers, and the second stack includes a second light emitting layer and a plurality of second organic layers. Among the plurality of first organic layers and the plurality of second organic layers, at least one of organic layers adjacent to the first light emitting layer and the second light emitting layer includes a light emitting material.

公开(公告)号：US20230005994A1

公开(公告)日：2023-01-05

申请号：US17556031

申请日：2021-12-20

Applicant: Samsung Display Co., Ltd.

Inventor： Seulong Kim ,  Eungyoung Park ,  Jiyoung Song ,  Hajin Song ,  Jaehoon Hwang

IPC: H01L27/32 ,  C09K11/06 ,  H01L51/00

Abstract: A display apparatus, comprising a substrate; a light-emitting device layer arranged on the substrate, wherein the light-emitting device layer comprises a first, second, and third areas, and at least one light-emitting device emitting a first light; and a color conversion layer arranged on the light-emitting device layer, wherein the color conversion layer comprises first, second, and third color conversion areas, wherein the first color conversion area emits a first color light, the second color conversion area emits a second color light, the third color conversion area emits a third color light, a maximum emission wavelength of the first, second, and third color lights are greater than a maximum emission wavelength of the first light, a color of the third color light is identical to that of the first light, and the maximum emission wavelength of the third color light is greater than the maximum emission wavelength of the first light.

公开(公告)号：US12171142B2

公开(公告)日：2024-12-17

申请号：US17393958

申请日：2021-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： Seulong Kim ,  Eungyoung Park ,  Jiyoung Song

IPC: C09K11/06 ,  C07F5/02 ,  H10K85/60 ,  H10K50/11 ,  H10K59/35 ,  H10K101/10

Abstract: A light emitting device includes a first electrode, a second electrode facing the first electrode, and at least one emission layer disposed between the first electrode and the second electrode. The at least one emission layer includes a polycyclic compound represented by Formula 1, thereby exhibiting long service life characteristics.

公开(公告)号：US20240074310A1

公开(公告)日：2024-02-29

申请号：US18315026

申请日：2023-05-10

Applicant: Samsung Display Co., Ltd.

Inventor： Jimyoung Ye ,  Jiyoung Song ,  Hajin Song ,  Jihwan Yoon ,  Jaehoon Hwang

IPC: H10K85/60 ,  H10K50/13

CPC classification number: H10K85/6572 ,  H10K50/13 ,  H10K85/6574 ,  H10K50/12

Abstract: Embodiments provide a light-emitting device that includes a first electrode, a second electrode facing the first electrode, and light-emitting units between the first electrode and the second electrode. The light-emitting units include at least one first light-emitting unit and at least one second light-emitting unit, the first light-emitting unit includes a first emission layer including a first host and a first dopant, the second light-emitting unit includes a second emission layer including a second host, a third host, and a second dopant, the first host includes a first compound represented by Formula 1, the second host includes at least one second compound each independently represented by one of Formulae 2a to 2c, the third host includes a third compound represented by Formula 3, wherein Formulae 1, 2a to 2c, and 3 are explained in the specification: