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.

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.