公开(公告)号：US20250098401A1

公开(公告)日：2025-03-20

申请号：US18615736

申请日：2024-03-25

Applicant: Samsung Display Co., Ltd.

Inventor： Jongwon Lee ,  Hakchoong Lee ,  Kayoung Lee ,  Changmin Lee ,  Jaehoon Hwang

IPC: H10K50/13 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K59/123 ,  H10K59/38

Abstract: Provided is 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. The interlayer includes emission layers, charge generation layers arranged between emission layers, and a layer including an alkali metal and Yb.

公开(公告)号：US11653517B2

公开(公告)日：2023-05-16

申请号：US17033772

申请日：2020-09-26

Applicant: Samsung Display Co., Ltd.

Inventor： Dongchan Kim ,  Jiyoung Moon ,  Heechang Yoon ,  Jihye Lee ,  Hakchoong Lee ,  Haemyeong Lee ,  Yoonhyeung Cho ,  Myungsuk Han ,  Jihwan Yoon ,  Jonghyuk Lee

IPC: H01L51/50 ,  H01L51/56 ,  H01L27/32

CPC classification number: H01L51/5056 ,  H01L27/322 ,  H01L27/3244 ,  H01L51/5016 ,  H01L51/5072 ,  H01L51/5092 ,  H01L51/5096 ,  H01L51/56

Abstract: A light-emitting device includes a first electrode; a second electrode facing the first electrode; m emission units between the first electrode and the second electrode; and m−1 charge-generating unit(s) between adjacent ones of the emission units, where m is a natural number of 2 or more. The emission units each include an emission layer. At least one of the charge-generating unit(s) includes an n-type charge-generating layer and a p-type charge-generating layer; and the n-type charge-generating layer includes a first material and a second material. The first material includes an organic electron transport compound; and the second material includes at least one selected from an alkali metal, an alkali metal alloy, an alkaline earth metal, an alkaline earth metal alloy, a lanthanide metal, and a lanthanide metal alloy. The light-emitting device may have improved hole and electron balance, a decreased driving voltage, and excellent efficiency and/or lifespan characteristics.

公开(公告)号：US20220209157A1

公开(公告)日：2022-06-30

申请号：US17483675

申请日：2021-09-23

Applicant: Samsung Display Co., Ltd.

Inventor： Hakchoong Lee ,  Jihye Lee ,  Myungsuk Han ,  Dongchan Kim ,  Yoonseok Ka ,  Jiyoung Moon

IPC: H01L51/50 ,  H01L27/32

Abstract: A display apparatus including a pixel electrode disposed on a substrate, an opposite electrode disposed to face the pixel electrode, a first emission layer and a second emission layer disposed on the first emission layer and overlapping each other between the pixel electrode and the opposite electrode, and a charge generation layer disposed between the first emission layer and the second emission layer, in which the charge generation layer includes an n-type charge generation layer, a p-type charge generation layer, and a metal interlayer disposed between the n-type charge generation layer and the p-type charge generation layer, and the metal interlayer includes metal having a work function of about −6.0 eV to about −3.5 eV.

公开(公告)号：US12302692B2

公开(公告)日：2025-05-13

申请号：US17714892

申请日：2022-04-06

Applicant: Samsung Display Co., Ltd.

Inventor： Hakchoong Lee ,  Yoonseok Ka ,  Dongchan Kim ,  Jiyoung Moon ,  Hajin Song ,  Jihwan Yoon ,  Jaehoon Hwang

IPC: H10K50/17 ,  H10K50/828 ,  H10K59/123 ,  H10K85/60 ,  H10K102/00

Abstract: A light-emitting device includes a second electrode that includes: a first layer including a first metal having a work function with an absolute value of 5.2 eV or less and a second metal having an electrical conductivity of 1×107 S/m or more; and a second layer consisting of the second metal having the electrical conductivity of 1×107 S/m or more. The first metal and the second metal are different from each other, a thickness of the first layer is from 1 Å to 30 Å, and a thickness of the second layer is from 10 Å to 110 Å.

公开(公告)号：US20240341116A1

公开(公告)日：2024-10-10

申请号：US18417136

申请日：2024-01-19

Applicant: Samsung Display Co., Ltd.

Inventor： Jungho Choi ,  Pilgu Kang ,  Daehyeon Kim ,  Dongchan Kim ,  Jiyoung Moon ,  Hakchoong Lee ,  Jaehoon Hwang

IPC: H10K50/17 ,  H10K102/00

CPC classification number: H10K50/171 ,  H10K2102/351

Abstract: Embodiments provide a light-emitting device, and an electronic apparatus and electronic equipment that each include the light-emitting device. The light-emitting device includes an anode, a cathode facing the anode, and an interlayer between the anode and the cathode, wherein the interlayer includes an emission layer and an electron transport region between the emission layer and the cathode. The electron transport region includes an electron injection layer adjacent to the cathode, the electron injection layer includes an alkali metal, and the cathode includes silver (Ag).

公开(公告)号：US20240334731A1

公开(公告)日：2024-10-03

申请号：US18595603

申请日：2024-03-05

Applicant: Samsung Display Co., Ltd.

Inventor： Jungho Choi ,  Jiyoung Moon ,  Pilgu Kang ,  Dongchan Kim ,  Hakchoong Lee

IPC: H10K50/16 ,  H10K50/17 ,  H10K101/40 ,  H10K102/00

CPC classification number: H10K50/166 ,  H10K50/171 ,  H10K2101/40 ,  H10K2102/351

Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer arranged between the first electrode and the second electrode and comprising an emission layer. The interlayer further includes a first layer arranged between the emission layer and the second electrode, and a second layer arranged between the first layer and the emission layer. The first layer includes a first metal-containing material, the second layer includes a second metal-containing material and a metal-free material, and a difference between a work function (W/F) of the first layer and a work function (W/F) of the second layer is in a range of about 0.05 eV to about 0.2 eV.

公开(公告)号：US20240284700A1

公开(公告)日：2024-08-22

申请号：US18444740

申请日：2024-02-18

Applicant: Samsung Display Co., LTD.

Inventor： Dongchan Kim ,  Jiyoung Moon ,  Heechang Yoon ,  Jihye Lee ,  Hakchoong Lee ,  Haemyeong Lee ,  Myungsuk Han ,  Jihwan Yoon ,  Jonghyuk Lee ,  Yoonhyeung Cho

IPC: H10K50/17 ,  H10K50/15 ,  H10K50/16 ,  H10K59/12 ,  H10K59/40

CPC classification number: H10K50/171 ,  H10K50/15 ,  H10K50/16 ,  H10K59/12 ,  H10K59/40

Abstract: A light-emitting device and an apparatus including the same include a first electrode, a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes m emission units and (m−1) charge generating units, each of the charge generating units being between the emission units that are adjacent to each other, m is a natural number of 2 or greater, at least one of the (m−1) charge generating units includes an n-type charge generating layer, a p-type charge generating layer, and a p-type hole injection layer, wherein the n-type charge generating layer includes an n-type organic compound and a metal material, and wherein the p-type charge generating layer and the p-type hole injection layer each independently include an inorganic semiconductor material.

公开(公告)号：US11856839B2

公开(公告)日：2023-12-26

申请号：US17038768

申请日：2020-09-30

Applicant: Samsung Display Co., Ltd.

Inventor： Dongchan Kim ,  Jiyoung Moon ,  Jihwan Yoon ,  Donghui Lee ,  Jihye Lee ,  Chulsoon Lee ,  Hakchoong Lee ,  Haemyeong Lee ,  Yoonhyeung Cho ,  Wonsuk Han

IPC: H10K50/10 ,  H10K85/30 ,  C09K11/06 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18

CPC classification number: H10K85/342 ,  C09K11/06 ,  H10K85/346 ,  C09K2211/185 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K50/18

Abstract: A light-emitting device and a method of manufacturing the same are provided. The light-emitting device may include a first electrode, a second electrode, and an interlayer located between the first electrode and the second electrode. The interlayer may include an emission layer that includes a first material, a second material, and a third material. The first material may include an inorganic semiconductor compound, an inorganic insulator compound, or any combination thereof. The second material may include a lanthanide metal. The third material may include an organic compound. An apparatus including the light-emitting device is provided.

公开(公告)号：US11825670B2

公开(公告)日：2023-11-21

申请号：US17031828

申请日：2020-09-24

Applicant: Samsung Display Co., Ltd.

Inventor： Wonsuk Han ,  Donghui Lee ,  Hakchoong Lee ,  Dongchan Kim ,  Jiyoung Moon ,  Jihye Lee ,  Chulsoon Lee ,  Haemyeong Lee ,  Yoonhyeung Cho

IPC: H10K50/11 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K50/19 ,  H10K50/155 ,  H10K50/15 ,  H10K59/123 ,  H10K85/60 ,  H10K101/40 ,  H10K101/10 ,  H10K102/00

CPC classification number: H10K50/11 ,  H10K50/155 ,  H10K50/156 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K50/18 ,  H10K50/19 ,  H10K59/123 ,  H10K85/624 ,  H10K85/626 ,  H10K2101/10 ,  H10K2101/40 ,  H10K2102/00 ,  H10K2102/351

Abstract: An organic light-emitting device includes an auxiliary layer located between a first electrode and a hole injection layer or a hole transport layer and including a metal fluoride. The metal of the metal fluoride may be a Group III metal having a high work function of 3.8 eV or more. The hole injection barrier at the interface between the first electrode and the hole injection layer may be adjusted by the fluoride of the high work function metal in the auxiliary layer so that the electron-hole charge balance and the efficiency of the organic light-emitting device may be improved.

公开(公告)号：US11700737B2

公开(公告)日：2023-07-11

申请号：US16895842

申请日：2020-06-08

Applicant: Samsung Display Co., Ltd.

Inventor： Dongchan Kim ,  Jiyoung Moon ,  Donghui Lee ,  Jihye Lee ,  Chulsoon Lee ,  Hakchoong Lee ,  Haemyeong Lee ,  Wonsuk Han ,  Jihwan Yoon ,  Yoonhyeung Cho

IPC: H01L51/52 ,  H10K50/19 ,  H10K50/13 ,  H10K59/38 ,  H10K59/123 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K71/00 ,  H10K85/30 ,  H10K85/60 ,  H10K101/30 ,  H10K102/00

CPC classification number: H10K50/19 ,  H10K50/13 ,  H10K59/123 ,  H10K59/38 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K71/00 ,  H10K85/30 ,  H10K85/322 ,  H10K85/615 ,  H10K85/626 ,  H10K85/633 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K2101/30 ,  H10K2102/331 ,  H10K2102/351

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; light-emitting units in the number of n between the first electrode and the second electrode; and a charge-generation unit(s) in the number of n−1 between the adjacent light-emitting units. The light-emitting units each include an emission layer, and at least one of the charge-generation unit(s) includes an n-type charge-generation layer, a p-type charge-generation layer, and an interlayer between the n-type charge-generation layer and the p-type charge-generation layer. The p-type charge-generation layer includes a first material and a second material, the first material includes a hole-transporting organic compound, an inorganic insulation compound, or any combination thereof, the second material includes at least one inorganic semiconductor compound, the interlayer comprises a third material, and the third material is selected from an organic compound, an inorganic semiconductor compound, and an inorganic insulation compound.