公开(公告)号：US20170054086A1

公开(公告)日：2017-02-23

申请号：US15053629

申请日：2016-02-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Youngtak Lee ,  Jahyun Im

IPC: H01L51/00 ,  C07D493/04 ,  C07D307/77 ,  H01L27/32

CPC classification number: H01L51/0073 ,  C07D307/77 ,  C07D493/04 ,  C09K11/06 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0077 ,  H01L51/0094 ,  H01L51/506 ,  H01L51/5076 ,  H01L51/508 ,  H01L2251/308

Abstract: When a decrease in low-grey level region (e.g., 0 to 80 grey) efficiencies of organic light emitting devices is not constant, deviation among display panels may cause color change and stain in the low luminance region. Aspects of the present disclosure are directed toward a compound to overcome this problem and an organic light-emitting device including the same. The compound may be represented by Formula 1: Organic light-emitting devices including this compound in the buffer layer were found to have improved efficiencies at low grey levels.

Abstract translation: 发现在缓冲层中包含该化合物的有机发光器件在低灰度水平下具有改进的效率。

公开(公告)号：US10014481B2

公开(公告)日：2018-07-03

申请号：US15053629

申请日：2016-02-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Youngtak Lee ,  Jahyun Im

IPC: H01L51/50 ,  H01L51/00 ,  H01L27/32 ,  C07D493/04 ,  C07D307/77

CPC classification number: H01L51/0073 ,  C07D307/77 ,  C07D493/04 ,  C09K11/06 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0077 ,  H01L51/0094 ,  H01L51/506 ,  H01L51/5076 ,  H01L51/508 ,  H01L2251/308

Abstract: When a decrease in low-grey level region (e.g., 0 to 80 grey) efficiencies of organic light emitting devices is not constant, deviation among display panels may cause color change and stain in the low luminance region. Aspects of the present disclosure are directed toward a compound to overcome this problem and an organic light-emitting device including the same. The compound may be represented by Formula 1: Organic light-emitting devices including this compound in the buffer layer were found to have improved efficiencies at low grey levels.

公开(公告)号：US20250072204A1

公开(公告)日：2025-02-27

申请号：US18736316

申请日：2024-06-06

Applicant: Samsung Display Co., Ltd.

Inventor： Jinwoong Kim ,  Jungmin Moon ,  Youngtak Lee ,  Hyowon Choi

IPC: H10K50/16 ,  H10K71/13 ,  H10K101/40 ,  H10K102/00

Abstract: A light-emitting diode includes a pixel electrode, a first functional layer on the pixel electrode, an emission layer on the first functional layer, a second functional layer on the emission layer, and an opposite electrode on the second functional layer, wherein the second functional layer includes an auxiliary electron transport layer on the emission layer and including a first deposition material, a mixed layer on the auxiliary electron transport layer and including the first deposition material, a second deposition material, and a third deposition material, and an electron transport layer on the mixed layer and including the second deposition material and the third deposition material.

公开(公告)号：US11050043B2

公开(公告)日：2021-06-29

申请号：US16657188

申请日：2019-10-18

Applicant: Samsung Display Co., Ltd. ,  KOREA UNIVERSITY Research and Business Foundation

Inventor： Byeong-kwon Ju ,  Youngwook Park ,  Cheolhwee Park ,  Youngtak Lee ,  Jinwoo Park

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

Abstract: A display device includes a light emitting element layer and a light scattering layer disposed on the light emitting element layer. The light scattering layer may include a low refractive part that includes a plurality of protruding portions and a high refractive part that covers the protruding portions.