公开(公告)号：US20210242431A1

公开(公告)日：2021-08-05

申请号：US17012700

申请日：2020-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： Hojung Syn

IPC: H01L51/52 ,  H01L51/00 ,  C09K11/06

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer disposed between the first electrode and the second electrode and including an emission layer; wherein the interlayer further includes: a layer A including an oxide of an inorganic compound; a layer B adjacent to an upper portion of the layer A and including an oxide of an inorganic compound; and a layer C adjacent to a lower portion of the layer A and including an oxide of an inorganic compound, and relationships between a refractive index a of the layer A, a refractive index b of the layer B, and a refractive index c of the layer C satisfy the Equations (1) and (2) defined herein.

公开(公告)号：US20240334729A1

公开(公告)日：2024-10-03

申请号：US18491154

申请日：2023-10-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jiyoung Lee ,  Makoto Yamamoto ,  Tsuyoshi Naijo ,  Toshiyuki Matsuura ,  Sungsoo Bae ,  Hojung Syn ,  Hyosup Shin ,  Heechoon Ahn ,  Changwoong Chu

IPC: H10K50/135 ,  H10K50/155 ,  H10K50/16 ,  H10K85/30 ,  H10K85/40 ,  H10K85/60

CPC classification number: H10K50/135 ,  H10K50/155 ,  H10K50/16 ,  H10K85/346 ,  H10K85/40 ,  H10K85/631 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/658 ,  H10K2101/25

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, wherein the emission layer includes a first compound, a second compound, a transition metal-containing compound, and a delayed fluorescence compound, the first compound being a hole transport material, and the second compound being an electron transport material, the first compound and the second compound form an exciplex, the first compound, the second compound, or any combination thereof is substituted with at least one deuterium, and an absolute value of a triplet charge transfer state-singlet ground state non-radiative decay rate constant of a mixture of the first compound and the second compound is decreased, compared to a case in which the first compound, the second compound, or any combination thereof is not substituted with deuterium.

公开(公告)号：US20240298457A1

公开(公告)日：2024-09-05

申请号：US18465294

申请日：2023-09-12

Applicant: Samsung Display Co., Ltd.

Inventor： Sungsoo Bae ,  Tsuyoshi Naijo ,  Hojung Syn ,  Hyosup Shin ,  Jiyoung Lee ,  Changwoong Chu

IPC: H10K50/12 ,  H10K50/15 ,  H10K50/18 ,  H10K85/30

CPC classification number: H10K50/12 ,  H10K50/15 ,  H10K50/181 ,  H10K85/342 ,  H10K85/346

Abstract: Embodiments provide a light-emitting device that include a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode. The interlayer includes an emission layer, and the emission layer includes a first emission layer and a second emission layer. The first emission layer includes a first host and a first-first dopant, or a first host, a first-first dopant, and a first-second dopant. The second emission layer includes a second host and a second-first dopant, or a second host, a second-first dopant, and a second-second dopant. The emission layer includes the first-second dopant and/or the second-second dopant, the first emission layer and the second emission layer directly contact each other, and a thickness of the second emission layer is greater than a thickness of the first emission layer.

公开(公告)号：US20230147748A1

公开(公告)日：2023-05-11

申请号：US17664725

申请日：2022-05-24

Applicant: Samsung Display Co., Ltd.

Inventor： Hojung Syn ,  Jinwon Sun ,  Changwoong Chu

IPC: H01L51/00 ,  C07D307/91 ,  C07D209/82 ,  C07D333/76 ,  C07C15/38 ,  C07C15/30 ,  C07C13/62 ,  C07D491/048 ,  C07D251/24 ,  C07F3/00 ,  C07D493/04 ,  C07D405/14 ,  C07D409/14 ,  C07D403/14 ,  C07D403/10 ,  C07D401/14 ,  C07D495/04 ,  C07D487/04 ,  C07C15/28 ,  C07F15/00

CPC classification number: H01L51/0087 ,  C07D307/91 ,  C07D209/82 ,  C07D333/76 ,  C07C15/38 ,  C07C15/30 ,  C07C13/62 ,  C07D491/048 ,  C07D251/24 ,  C07F3/006 ,  C07D493/04 ,  C07D405/14 ,  C07D409/14 ,  C07D403/14 ,  C07D403/10 ,  C07D401/14 ,  C07D495/04 ,  C07D487/04 ,  C07C15/28 ,  C07F15/0086 ,  H01L51/0062 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0052 ,  H01L51/0054 ,  H01L2251/558 ,  H01L51/506

Abstract: Provided is a light-emitting device including: 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, wherein the emission layer includes a layer including a Pt complex, and the layer has a thickness of greater than 0 Å and less than 10 Å.

公开(公告)号：US20240298517A1

公开(公告)日：2024-09-05

申请号：US18370815

申请日：2023-09-20

Applicant: Samsung Display Co., Ltd.

Inventor： Hyosup Shin ,  Naijo Tsuyoshi ,  Sungsoo Bae ,  Hojung Syn ,  Jiyoung Lee ,  Changwoong Chu

IPC: H10K85/30 ,  C09K11/06 ,  H10K85/60

CPC classification number: H10K85/346 ,  C09K11/06 ,  H10K85/658 ,  C09K2211/1018 ,  C09K2211/1029 ,  C09K2211/1033 ,  C09K2211/185 ,  H10K50/121 ,  H10K2101/30

Abstract: A light-emitting device including 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 is provided. The emission layer includes a sensitizer and an emitter and a spectral overlap integral of an emission spectrum of the sensitizer and an absorption spectrum of the emitter is at least 1×1013 M−1 cm4. A highest occupied molecular orbital (HOMO) energy level of the sensitizer is greater than a HOMO energy level of the emitter, and the spectral overlap integral is evaluated by Equation 1:








J
⁡
(
λ
)

=


∫
0
∞



ε
⁡
(
λ
)

⁢

λ
4

⁢


F
D

(
λ
)

⁢
d
⁢

λ
.







Equation
⁢

1

公开(公告)号：US11744106B2

公开(公告)日：2023-08-29

申请号：US17012700

申请日：2020-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： Hojung Syn

IPC: H10K50/858 ,  H10K85/30 ,  H10K85/60 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K101/10 ,  H10K102/00 ,  C09K11/06

CPC classification number: H10K50/858 ,  C09K11/06 ,  H10K85/324 ,  H10K85/342 ,  H10K85/631 ,  H10K85/6572 ,  C09K2211/1029 ,  C09K2211/185 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K50/18 ,  H10K2101/10 ,  H10K2102/3026

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer disposed between the first electrode and the second electrode and including an emission layer; wherein the interlayer further includes: a layer A including an oxide of an inorganic compound; a layer B adjacent to an upper portion of the layer A and including an oxide of an inorganic compound; and a layer C adjacent to a lower portion of the layer A and including an oxide of an inorganic compound, and relationships between a refractive index a of the layer A, a refractive index b of the layer B, and a refractive index c of the layer C satisfy the Equations (1) and (2) defined herein.

公开(公告)号：US20230189546A1

公开(公告)日：2023-06-15

申请号：US18053152

申请日：2022-11-07

Applicant: Samsung Display Co., Ltd.

Inventor： Hojung Syn

IPC: H01L51/00 ,  C09K11/06

CPC classification number: H10K50/19 ,  C09K11/06 ,  H10K85/346 ,  C09K2211/185 ,  H10K50/11 ,  H10K59/12

Abstract: A light-emitting device including a first electrode, a second electrode facing the first electrode, and an interlayer arranged between the first electrode and the second electrode and including an emission layer is provided. The emission layer includes a first emission layer and a second emission layer. The first emission layer includes a phosphorescent emitter and a first host. The second emission layer includes a fluorescent emitter and a second host. The phosphorescent emitter is configured to emit a first light having a first emission spectrum, and the first light is blue light.

公开(公告)号：US12171108B2

公开(公告)日：2024-12-17

申请号：US17358660

申请日：2021-06-25

Applicant: Samsung Display Co., Ltd.

Inventor： Hojung Syn

IPC: H10K50/11 ,  C09K11/06 ,  H10K50/00 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00

Abstract: An organic electroluminescence device according to an embodiment includes a first electrode, a hole transport region disposed on the first electrode, an exciton diffusion layer disposed on the hole transport region and including a first host represented by Formula 1, an emission layer disposed on the exciton diffusion layer and including a second host, a third host, and a phosphorescent dopant, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. The organic electroluminescence device exhibits high efficiency and a long service life.

公开(公告)号：US20240155861A1

公开(公告)日：2024-05-09

申请号：US18335401

申请日：2023-06-15

Applicant: Samsung Display Co., LTD.

Inventor： Tsuyoshi Naijo ,  Yunjee Park ,  Sungsoo Bae ,  Hojung Syn ,  Hyosup Shin ,  Jiyoung Lee ,  Changwoong Chu

IPC: H10K50/13 ,  C07F15/00 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K85/30

CPC classification number: H10K50/13 ,  C07F15/0086 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K85/346 ,  H10K2101/90

Abstract: Embodiments provide an organic light-emitting device and an electronic apparatus including the organic light-emitting device. The organic 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 each including an emission layer, and m−1 charge generation layers between adjacent ones of the m light-emitting units, wherein m is an integer of 2 or more, at least one of the emission layers of the light-emitting units includes a first emission layer and a second emission layer, the first emission layer includes a first host, a second host, a first dopant, and a second dopant, the second emission layer includes a third host and a third dopant.

公开(公告)号：US20220199917A1

公开(公告)日：2022-06-23

申请号：US17400067

申请日：2021-08-11

Applicant: Samsung Display Co., Ltd.

Inventor： Hojung Syn

IPC: H01L51/00

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, wherein the emission layer includes a first emission layer including a first host, a second host, and a first dopant, and a second emission layer including a third host, a fourth host, and a second dopant, the first host and the third host are hole transport hosts, the second host and the fourth host are electron transport hosts, the first dopant and the second dopant are phosphorescent dopants including platinum, and the second host has a T1 energy value (T1_H2) and the fourth host has a T1 energy value (T1_H4) that satisfy the Equation (1) T1_H2>T1_H4 or Equation (2) T1_H2