公开(公告)号：US12250877B2

公开(公告)日：2025-03-11

申请号：US17239405

申请日：2021-04-23

Applicant: Samsung Display Co., Ltd.

Inventor： Namsu Kang ,  Jin Kim ,  Jongwon Lee ,  Hyunshik Lee ,  Jaehoon Hwang

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

Abstract: An organic light-emitting device includes: a first electrode; a second electrode; m emission units; and m−1 charge generation layer(s), each including an n-type charge generation layer and a p-type charge generation layer and being located between two emission units. The m emission units each include a hole transport region, an electron transport region, and an emission layer between the hole transport region and the electron transport region. An mth electron region included in an mth emission layer that is closest among the m emission units to the second electrode includes an mth electron transport layer. The mth electron transport layer is a single layer consisting of a first compound, the mth emission layer included in the mth emission unit includes a second compound, and the mth electron transport layer and the mth emission layer may be different from each other.

公开(公告)号：US12193253B2

公开(公告)日：2025-01-07

申请号：US17575583

申请日：2022-01-13

Applicant: Samsung Display Co., Ltd.

Inventor： Jimyoung Ye ,  Seulong Kim ,  Hyekyun Lee ,  Hajin Song ,  Jihwan Yoon ,  Dongseob Jeong ,  Jaehoon Hwang

IPC: H10K50/13 ,  H10K50/11 ,  H10K50/19 ,  H10K59/122 ,  H10K59/38 ,  H10K101/00 ,  H10K101/10

Abstract: A light emitting devices includes a first electrode, a hole transport region on the first electrode, a first emission layer on the hole transport region, the first emission layer to emit light of a first wavelength, a second emission layer on the hole transport region and to emit light of a second wavelength, an electron transport region on the first and second emission layers, and a second electrode on the electron transport region. The first emission layer includes a first sub-emission layer including a first hole transport host and a first sub-dopant to emit the light of the first wavelength, and a second sub-emission layer including a first electron transport and a second sub-dopant to emit the light of the first wavelength. The second emission layer includes a second hole transport host, a second electron transport host, and a second dopant to emit the light of the second wavelength.

公开(公告)号：US11944002B2

公开(公告)日：2024-03-26

申请号：US17004558

申请日：2020-08-27

Applicant: Samsung Display Co., Ltd.

Inventor： Namsu Kang ,  Jin Kim ,  Dongkyu Lee ,  Hyunshik Lee ,  Jungho Choi ,  Jaehoon Hwang

IPC: H10K85/00 ,  H10K85/60 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/19 ,  H10K101/10 ,  H10K101/30

CPC classification number: H10K85/631 ,  H10K85/626 ,  H10K85/654 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/19 ,  H10K2101/10 ,  H10K2101/30

Abstract: The present application relates to an organic light-emitting device and a flat display apparatus including the same. An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; light-emitting units in the number of m between the first electrode and the second electrode; and charge generation layers in the number of m−1 respectively between each pair of adjacent light-emitting units among the light-emitting units in the number of m, each charge generation layer including an n-type charge generation layer and a p-type charge generation layer, wherein m is an integer of 3 or more, the light-emitting units in the number of m each include a hole transport region, an emission layer, and an electron transport region, which are sequentially stacked, electron transport regions in the number of m included in the light-emitting units in the number of m each include an electron transport material, and an electron transport material included in at least one electron transport region among the electron transport regions in the number of m is different from an electron transport material included in at least one electron transport region among the other electron transport regions.

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:

公开(公告)号：US11569454B2

公开(公告)日：2023-01-31

申请号：US16813539

申请日：2020-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jaeyong Lee ,  Taekyung Kim ,  Minkyung Kim ,  Seulong Kim ,  Pilgu Kang ,  Jiyoung Kwon ,  Soonchul Chang ,  Jaehoon Hwang

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

Abstract: Provided are an organic-light-emitting device and a display apparatus including the same. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including at least one light-emitting unit, wherein the at least one light-emitting unit includes: an emission layer; and a hole transport region between the first electrode and the emission layer and including a first hole transport (HT) layer, the emission layer includes a host, the first HT layer includes a first compound, a minimum bond dissociation energy (BDE1HT) of the first compound is larger than a triplet energy (T1,host) of the host, and a minimum bond dissociation energy (BDEhost) of the host is larger than the triplet energy (T1,host) of the host.

公开(公告)号：US10418574B2

公开(公告)日：2019-09-17

申请号：US15937070

申请日：2018-03-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Heungsu Park ,  Jihwan Yoon ,  Sangwoo Lee ,  Jaehoon Hwang

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

Abstract: An organic light emitting element includes a first electrode; a first organic layer on the first electrode; a second organic layer on the first organic layer; a second electrode on the second organic layer; and a mixed layer between the first organic layer and the second organic layer. A gap between a highest occupied molecular orbital (HOMO) energy level of the first organic layer and a lowest unoccupied molecular orbital (LUMO) energy level of the second organic layer may be in a range from about 1.35 eV to about 1.70 eV. The mixed layer may emit light having a wavelength in a range from about 740 nm to about 950 nm by exciplex.

公开(公告)号：US20190103566A1

公开(公告)日：2019-04-04

申请号：US15921590

申请日：2018-03-14

Applicant: Samsung Display Co., Ltd.

Inventor： Seulong Kim ,  Soobyung Ko ,  Myeongsuk Kim ,  Jimyoung Ye ,  Byeongwook Yoo ,  Heunseung Lee ,  Jaehoon Hwang

IPC: H01L51/00 ,  C07F15/00 ,  C09K11/06

Abstract: An organometallic compound and an organic light-emitting device including the same are provided. The organometallic compound is represented by Formula 1 below:

公开(公告)号：US20190084986A1

公开(公告)日：2019-03-21

申请号：US15963036

申请日：2018-04-25

Applicant: Samsung Display Co., Ltd.

Inventor： Jimyoung Ye ,  Myeongsuk Kim ,  Seulong Kim ,  Byeongwook Yoo ,  Jaehoon Hwang ,  Soo-byung Ko ,  Jihwan Yoon

IPC: C07D487/04 ,  C07D403/14 ,  C07D417/14 ,  C07D413/14 ,  C07D409/14 ,  H01L51/00 ,  H01L51/50

Abstract: Provided are a heterocyclic compound represented by Formula 1 and an organic electroluminescence device and an organic electroluminescence display device including the heterocyclic compound represented by Formula 1 in an emission layer. In Formula 1, A is represented by Formula 2, D1 is represented by Formula 3, and D2 is represented by Formula 4.

公开(公告)号：US20190062357A1

公开(公告)日：2019-02-28

申请号：US16015031

申请日：2018-06-21

Applicant: Samsung Display Co., Ltd.

Inventor： Byeongwook Yoo ,  Soobyung Ko ,  Myeongsuk Kim ,  Seulong Kim ,  Yiseul Kim ,  Jimyoung Ye ,  Jaehoon Hwang

IPC: C07F15/00 ,  H01L51/00 ,  H01L51/50

Abstract: An organometallic compound is represented by Formula 1. An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer and at least one of the organometallic compound. An organic light-emitting apparatus includes the organic light-emitting device.