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.