公开(公告)号：US20230151032A1

公开(公告)日：2023-05-18

申请号：US17985653

申请日：2022-11-11

Applicant: Samsung Display Co., Ltd.

Inventor： Yujin Kang ,  Mieun Jun ,  Changwoong Chu

IPC: C07F7/08 ,  H01L51/00 ,  H01L51/50 ,  H01L51/52

CPC classification number: C07F7/0812 ,  H01L51/0094 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/5012 ,  H01L51/52

Abstract: A heterocyclic compound represented by Formula 1, a light-emitting device including the heterocyclic compound, and an electronic apparatus including the light-emitting device are provided

公开(公告)号：US20230268467A1

公开(公告)日：2023-08-24

申请号：US17979958

申请日：2022-11-03

Applicant: Samsung Display Co., Ltd.

Inventor： Mieun Jun ,  Yujin Kang ,  Youngki Lee

IPC: H01L33/50 ,  H01L33/14

CPC classification number: H01L33/502 ,  H01L33/14

Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode and including an emission layer. The emission layer includes a first host, a second host, a first dopant, and a second dopant, which are all different from one another. The first host is a hole transporting compound, the second host is an electron transporting compound, the first dopant is a phosphorescent dopant, and the second dopant is a delayed fluorescence dopant. The light-emitting device satisfies Expression 1, and a spectral overlap integral of an emission spectrum of the first dopant and an absorption spectrum of the second dopant is 0.5×1014 M−1cm−1nm4 or greater, wherein the spectral overlap integral is evaluated by Expression 2:


T1(D1)≤S1(D2)  [Expression 1]



J(λ)=∫0∞ε(λ)λ4FD(λ)dλ  [Expression 2]

Expressions 1 and 2 are explained in the specification.

公开(公告)号：US11348974B2

公开(公告)日：2022-05-31

申请号：US16813497

申请日：2020-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： Pyungeun Jeon ,  Ilsoo Oh ,  Bora Lee ,  Yujin Kang ,  Juwon Lee

IPC: H01L51/50 ,  H01L27/32 ,  C07F5/02 ,  C09K11/06 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56

Abstract: A light-emitting device includes: a plurality of first electrodes respectively in a first sub-pixel, a second sub-pixel, and a third sub-pixel; a second electrode facing the plurality of first electrodes; a first emission layer in the first sub-pixel and configured to emit a first color light; a second emission layer in the second sub-pixel and configured to emit a second color light; a first layer that is integrated with the first sub-pixel, the second sub-pixel, and the third sub-pixel; a first auxiliary layer between the first layer and the first emission layer; and a first intermediate layer between the first auxiliary layer and the first emission layer. The first emission layer includes a first host and a first dopant. The first dopant is configured to emit light having a full width at half maximum (FWHM) of about 35 nm or more.

公开(公告)号：US20240341115A1

公开(公告)日：2024-10-10

申请号：US18597699

申请日：2024-03-06

Applicant: Samsung Display Co., Ltd.

Inventor： Youngki Lee ,  Yujin Kang ,  Minje Kim ,  Seongkeun Kim ,  Eungdo Kim ,  Hyunyoung Kim ,  Hyojeong Kim ,  Jungsub Lee ,  Hyunwoo Lee ,  Mieun Jun

IPC: H10K50/12 ,  C09K11/06 ,  H10K50/15 ,  H10K85/30 ,  H10K85/60 ,  H10K101/20 ,  H10K102/00

CPC classification number: H10K50/121 ,  C09K11/06 ,  H10K50/156 ,  H10K85/342 ,  H10K85/346 ,  H10K85/6572 ,  H10K85/658 ,  C09K2211/1018 ,  H10K2101/20 ,  H10K2102/351

Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, an interlayer between the first electrode and the second electrode and including a hole transport region and an emission layer, the hole transport region including a first layer including a compound represented by Formula 1 and a second layer, where a thickness of the emission layer is greater than or equal to about 25% of a thickness of the first layer. In addition, an electronic apparatus and an electronic device each including the light-emitting device are also provided.

公开(公告)号：US20240292747A1

公开(公告)日：2024-08-29

申请号：US18364157

申请日：2023-08-02

Applicant: Samsung Display Co., Ltd.

Inventor： Eungdo Kim ,  Yujin Kang ,  Minje Kim ,  Seongkeun Kim ,  Hyunyoung Kim ,  Hyojeong Kim ,  Youngki Lee ,  Jungsub Lee ,  Hyunwoo Lee ,  Mieun Jun

IPC: H10K85/60 ,  H10K85/40

CPC classification number: H10K85/6572 ,  H10K85/40 ,  H10K85/624 ,  H10K85/626 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/12 ,  H10K2101/90

Abstract: Embodiments provide a light-emitting device including a first electrode, a second electrode facing the first electrode, m emitting units between the first electrode and the second electrode, and m-1 charge generation layers between adjacent ones of the m emitting units, wherein m is an integer of 3 or more, and the emitting units include a first emitting unit, a second emitting unit, and a third emitting unit. The first emitting unit includes a first-first host and a first-second host, the second emitting unit includes a second-first host and a second-second host, the third emitting unit includes a third-first host and a third-second host, and T1 values of hosts of at least one of a first emitting unit, a second emitting unit, and a third emitting unit are each smaller than T1 values of hosts of the other emitting units.

公开(公告)号：US11121196B2

公开(公告)日：2021-09-14

申请号：US16536428

申请日：2019-08-09

Applicant: Samsung Display Co., Ltd.

Inventor： Chang-Min Lee ,  Yujin Kang ,  Hyomin Ko ,  Daehyeon Kim ,  Juwon Lee

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L51/44 ,  G06K9/00 ,  G06F3/044 ,  H01L51/42

Abstract: Provided is a display device including a light emitting device and a light receiving device. The light receiving device includes a first light receiving electrode and a light receiving layer. The light receiving device receives a second light reflected from an external object and generates current.