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：US20220344591A1

公开(公告)日：2022-10-27

申请号：US17506448

申请日：2021-10-20

Applicant: Samsung Display Co., Ltd.

Inventor： Yoonseok Ka ,  Dongchan Kim ,  Jiyoung Moon ,  Heechang Yoon

IPC: H01L51/00 ,  C09K11/61

Abstract: A method of forming a perovskite thin film and a light-emitting device including a layer manufactured by the method.

公开(公告)号：US20230329103A1

公开(公告)日：2023-10-12

申请号：US18108146

申请日：2023-02-10

Applicant: Samsung Display Co., Ltd.

Inventor： Jungho Choi ,  Dongchan Kim ,  Yoonseok Ka ,  Pilgu Kang ,  Hajin Song ,  Hakchoong Lee

IPC: H10K85/60 ,  H10K50/115 ,  C09K11/06

CPC classification number: H10K85/6572 ,  H10K50/115 ,  C09K11/06 ,  H10K50/131

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, and an interlayer between the first electrode and the second electrode. The interlayer includes m emitting parts, and m−1 charge generation parts between two adjacent ones of the emitting parts, wherein m is an integer of 2 or more. At least one of the charge generation parts includes an n-type charge generation layer, a first p-type charge generation layer, and a second p-type charge generation layer. A band gap of the second p-type charge generation layer is greater than a band gap of the first p-type charge generation layer.

公开(公告)号：US20230140767A1

公开(公告)日：2023-05-04

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: H01L51/52

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：US12256636B2

公开(公告)日：2025-03-18

申请号：US17544866

申请日：2021-12-07

Applicant: Samsung Display Co., Ltd.

Inventor： Heechang Yoon ,  Dongchan Kim ,  Yoonseok Ka ,  Jiyoung Moon ,  Haemyeong Lee ,  Yoonhyeung Cho

IPC: H10K85/60 ,  H10K10/46 ,  H10K30/80 ,  H10K30/81 ,  H10K50/155 ,  H10K50/17 ,  H10K50/81 ,  H10K50/82

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 a first layer, wherein the first electrode has a work function value of about −5.5 eV to about −6.1 eV, and the interlayer includes a second layer doped with a non-lead-based perovskite compound.

公开(公告)号：US20220344595A1

公开(公告)日：2022-10-27

申请号：US17544866

申请日：2021-12-07

Applicant: Samsung Display Co., Ltd.

Inventor： Heechang Yoon ,  Dongchan Kim ,  Yoonseok Ka ,  Jiyoung Moon ,  Haemyeong Lee ,  Yoonhyeung Cho

IPC: H01L51/00 ,  H01L51/44 ,  H01L51/05

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 a first layer, wherein the first electrode has a work function value of about −5.5 eV to about −6.1 eV, and the interlayer includes a second layer doped with a non-lead-based perovskite compound.

公开(公告)号：US11895903B2

公开(公告)日：2024-02-06

申请号：US17506448

申请日：2021-10-20

Applicant: Samsung Display Co., Ltd.

Inventor： Yoonseok Ka ,  Dongchan Kim ,  Jiyoung Moon ,  Heechang Yoon

IPC: H01L23/00 ,  H10K71/15 ,  C09K11/61 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K71/00

CPC classification number: H10K71/15 ,  C09K11/616 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K71/00

Abstract: A method of forming a perovskite thin film and a light-emitting device including a layer manufactured by the method.

公开(公告)号：US20220149310A1

公开(公告)日：2022-05-12

申请号：US17450820

申请日：2021-10-13

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L51/50 ,  H01L27/32

Abstract: A light-emitting device and an electronic apparatus including the same are provided. The light-emitting device includes: a first electrode; a second electrode facing the first electrode; m emission units stacked between the first electrode and the second electrode and including an emission layer; and m−1 charge generation layers each between two neighboring emission units from among the m emission units, wherein m is an integer of 2 or more, at least one of the m emission units includes an inorganic mixed layer between the first electrode and the emission layer, and the inorganic mixed layer includes an inorganic insulating material and an inorganic semiconductor material.