公开(公告)号：US12052881B2

公开(公告)日：2024-07-30

申请号：US18151954

申请日：2023-01-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyomin Ko ,  Changmin Lee

IPC: H01L51/54 ,  H10K50/15 ,  H10K50/852 ,  H10K85/60 ,  H10K50/11 ,  H10K59/35 ,  H10K101/10 ,  H10K102/00

CPC classification number: H10K50/15 ,  H10K50/852 ,  H10K85/633 ,  H10K50/11 ,  H10K50/156 ,  H10K59/35 ,  H10K2101/10 ,  H10K2102/341 ,  H10K2102/351

Abstract: An organic light-emitting device includes: a first pixel electrode on a first emission region, a second pixel electrode on a second emission region, and a third pixel electrode on a third emission region; a counter electrode facing each of the first pixel electrode, the second pixel electrode, and the third pixel electrode; and an interlayer between the counter electrode and each of the first pixel electrode, the second pixel electrode, and the third pixel electrode. The interlayer includes an emission layer, and a hole transport region between the emission layer and each of the first pixel electrode, the second pixel electrode, and the third pixel electrode, the hole transport region includes a planarization layer that includes an amine-based compound represented by Formula 1, Formula 2A, or Formula 2B, and the amine-based compound has a crystallization peak having a noise-to-peak ratio of 1.75 or more in an X-ray diffraction (XRD) spectrum.

公开(公告)号：US20230113852A1

公开(公告)日：2023-04-13

申请号：US17722378

申请日：2022-04-17

Applicant: Samsung Display Co., Ltd.

Inventor： Jongwon LEE ,  Seungcheol Kim ,  Heungsu Park ,  Changmin Lee ,  Hyunshik Lee

IPC: H01L51/50 ,  H01L51/00

Abstract: A light-emitting device including: m emitting units located between a first electrode and a second electrode; and m−1 charge generation units, each located between two neighboring emitting units among the m emitting units and including an n-type charge generation layer and a p-type charge generation layer. The m emitting units may each include an emission layer, at least one of the m emission layers comprises a first emission layer and a second emission layer that are in contact with each other, the first emission layer includes a first host, a second host, and a first dopant, the second emission layer includes a third host, a fourth host, and a second dopant, the first host and the second host form a first exciplex, the third host and the fourth host form a second exciplex, and the first dopant is a delayed fluorescence dopant, and the second dopant is a phosphorescent dopant.

公开(公告)号：US11569470B2

公开(公告)日：2023-01-31

申请号：US16928544

申请日：2020-07-14

Applicant: Samsung Display Co., Ltd.

Inventor： Hyomin Ko ,  Changmin Lee

IPC: H01L51/54 ,  H01L51/50 ,  H01L51/52 ,  H01L51/00 ,  H01L27/32

Abstract: An organic light-emitting device includes: a first pixel electrode on a first emission region, a second pixel electrode on a second emission region, and a third pixel electrode on a third emission region; a counter electrode facing each of the first pixel electrode, the second pixel electrode, and the third pixel electrode; and an interlayer between the counter electrode and each of the first pixel electrode, the second pixel electrode, and the third pixel electrode. The interlayer includes an emission layer, and a hole transport region between the emission layer and each of the first pixel electrode, the second pixel electrode, and the third pixel electrode, the hole transport region includes a planarization layer that includes an amine-based compound represented by Formula 1, Formula 2A, or Formula 2B, and the amine-based compound has a crystallization peak having a noise-to-peak ratio of 1.75 or more in an X-ray diffraction (XRD) spectrum.

公开(公告)号：US20230320120A1

公开(公告)日：2023-10-05

申请号：US18102169

申请日：2023-01-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jongwon Lee ,  Seungcheol Kim ,  Changmin Lee ,  Hyunshik Lee

IPC: H10K50/13

CPC classification number: H10K50/131 ,  H10K59/12

Abstract: Embodiments provide a light-emitting device and an electronic apparatus including the same. The light-emitting device includes a first electrode, a second electrode facing the first electrode, m light-emitting units stacked between the first electrode and the second electrode, and m-1 charge generation layers between adjacent ones of the light-emitting. Each light-emitting unit includes an emission layer; the m light-emitting units include a first light-emitting unit, a second light-emitting unit, a third light-emitting unit, a fourth light-emitting unit, and a fifth light-emitting unit; the m−1 charge generation layers include a first charge generation layer, a second charge generation layer, a third charge generation layer, and a fourth charge generation layer; the first light-emitting unit and the second light-emitting unit each emit green light; and the third light-emitting unit, the fourth light-emitting unit, and the fifth light-emitting unit each emit blue light.

公开(公告)号：US10910587B2

公开(公告)日：2021-02-02

申请号：US15730847

申请日：2017-10-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sangwoo Pyo ,  ILsoo Oh ,  Jihwan Yoon ,  Changmin Lee ,  Sungjin Choi

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

Abstract: An organic light emitting diode display device includes an auxiliary electrode spaced apart from a plurality of first electrodes on a substrate. A first light emitting portion is on the first electrode. A charge generation layer is on the first light emitting portion. A second light emitting portion is on the charge generation layer. A second electrode is on the second light emitting portion and is electrically connected to the auxiliary electrode. The second electrode is insulated from the charge generation layer.

公开(公告)号：US10903442B2

公开(公告)日：2021-01-26

申请号：US16040471

申请日：2018-07-19

Applicant: Samsung Display Co., Ltd.

Inventor： Changmin Lee ,  Jihye Shim ,  Yeonwoo Lee ,  Jehong Choi ,  Hyunju Choi ,  Sangwoo Pyo ,  Myungsuk Han

IPC: H01L29/08 ,  H01L51/50 ,  H01L51/52 ,  H01L27/32 ,  H05B33/10

Abstract: Disclosed are an organic light-emitting diode and an organic light-emitting display device including the same. The organic light-emitting diode includes: a first electrode; a second electrode disposed opposite to the first electrode; a light-emitting layer disposed between the first electrode and the second electrode; a hole transport region disposed between the first electrode and the light-emitting layer; and an electron transport region disposed between the light-emitting layer and the second electrode; the hole transport region including at least two layers, and one of the at least two layers is in contact with the first electrode and is a self-crystallizing material-containing layer.

公开(公告)号：US09711746B2

公开(公告)日：2017-07-18

申请号：US14692638

申请日：2015-04-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Changmin Lee ,  Hyunju Choi ,  Jihwan Yoon

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

CPC classification number: H01L51/5036 ,  H01L27/3206 ,  H01L27/3209 ,  H01L27/3211 ,  H01L27/3216 ,  H01L27/3218 ,  H01L27/3244 ,  H01L51/5012 ,  H01L51/5024 ,  H01L51/504 ,  H01L51/5056 ,  H01L51/5064 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5265 ,  H01L2251/558

Abstract: An organic light emitting diode display includes: a substrate; and a plurality of red organic light emitting diodes, green organic light emitting diodes, and blue organic light emitting diodes on the substrate, each of the plurality of red organic light emitting diodes, green organic light emitting diodes, and blue organic light emitting diodes including: a first electrode on the substrate; an organic layer on the first electrode; and a second electrode on the organic layer, and the organic layer includes a light emission auxiliary layer on the first electrode and an organic light emitting layer on the light emission auxiliary layer, and the organic layer of each of the red organic light emitting diodes has a thickness of about 90 to 110 nm.