公开(公告)号：US20210296606A1

公开(公告)日：2021-09-23

申请号：US17088178

申请日：2020-11-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil KIM ,  Wonjong KIM ,  Yeongrong PARK ,  Dongkyu SEO ,  Junyong SHIN ,  Junghee AN ,  Byeongwook YOO ,  Daeho LEE ,  Byungseok LEE

IPC: H01L51/50 ,  H01L51/52

Abstract: An organic 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, each emission unit including at least one emission layer; and m−1 charge generating layers respectively located between two adjacent emission units among them emission units, each of the charge generating layers including one n-type charge generating region and one p-type charge generating region, wherein m is an integer of 2 or more, and at least one of the m−1 p-type charge generating regions includes a phosphate-containing compound.

公开(公告)号：US20210217964A1

公开(公告)日：2021-07-15

申请号：US17142900

申请日：2021-01-06

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongpil KIM ,  Wonjong KIM ,  Hyoyeon KIM ,  Yeongrong PARK ,  Dongkyu SEO ,  Junyong SHIN ,  Junghee AN ,  Byeongwook YOO ,  Daeho LEE ,  Byungseok LEE ,  Jaejin LYU

IPC: H01L51/00

Abstract: An organic light-emitting device and a flat-display apparatus, the organic light-emitting device including: a charge generating layer between two adjacent emission units, the charge generating layer including an n-type charge generating layer and a p-type charge generating layer, wherein at least one of the n-type and the p-type charge generating layers includes a first inorganic material selected from a late transition metal, a metalloid, a compound including late transition metals, a compound including metalloids, a compound including a late transition metal and a metalloid, and combinations thereof, the late transition metal is at least one selected from Al, Ga, In, Tl, Sn, Pb, Fl, Bi, and Po, the metalloid is at least one selected from B, Si, Ge, As, Sb, Te, and At, and when the late transition metal is at least one selected from Al, In, and Pb, the first inorganic material is the compound including a late transition metal and a metalloid.

公开(公告)号：US20200266382A1

公开(公告)日：2020-08-20

申请号：US16684325

申请日：2019-11-14

Applicant: Samsung Display Co., Ltd.

Inventor： Dongkyu SEO ,  Wonjong KIM ,  Yeongrong PARK ,  Hyeongpil KIM ,  Junghee AN ,  Byeongwook YOO ,  Byungseok LEE

IPC: H01L51/52 ,  H01L51/00 ,  H01L51/50

Abstract: A luminescence device includes a first electrode, a first emission portion disposed on the first electrode, a second electrode disposed on the first emission portion, and a capping layer disposed on the second electrode and including a metal atom and a metal halide compound, wherein the metal atom is a lanthanide metal, a transition metal, or a post-transition metal and the metal halide compound is formed by combining an alkali metal atom and a halogen atom.