公开(公告)号：US20220006028A1

公开(公告)日：2022-01-06

申请号：US17358681

申请日：2021-06-25

Applicant: Samsung Display Co., Ltd.

Inventor： Beomjin KIM ,  Yeongji IM ,  Jino LIM ,  Seunggak YANG

IPC: H01L51/00

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, and an interlayer between the first electrode and the second electrode. The interlayer includes an emission layer, and a hole transport region between the emission layer and the first electrode. The hole transport region includes at least one first compound including 15N in the number of m1, 15N in the number of m1 is linked to a neighboring carbon (C) via a single bond, m1 is an integer equal to or greater than 1, and the first compound is not Compound A in the specification.

公开(公告)号：US20210320256A1

公开(公告)日：2021-10-14

申请号：US17222580

申请日：2021-04-05

Applicant: Samsung Display Co., Ltd.

Inventor： Jino LIM ,  Yeongji IM ,  Sejin CHO ,  Seunggak YANG

IPC: H01L51/00 ,  C07D307/91 ,  C09K11/06 ,  C07C15/28 ,  C07F5/02

Abstract: An organic light-emitting device includes: 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 an emission layer and a hole transport region between the first electrode and the emission layer, the hole transport region includes a first hole transport layer and a second hole transport layer, the first hole transport layer includes a first hole transport compound and a p-type dopant, the second hole transport layer includes a second hole transport compound, and the emission layer includes a host compound represented by Formula 1 and a dopant compound represented by Formula 2:

公开(公告)号：US20210399233A1

公开(公告)日：2021-12-23

申请号：US17352033

申请日：2021-06-18

Applicant: Samsung Display Co., Ltd.

Inventor： Beomjin KIM ,  Yeongji IM ,  Jino LIM

IPC: H01L51/00 ,  C09K11/02

Abstract: An organic light emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer that includes a first emission layer, a second emission layer, and a third emission layer, wherein at least one of the first emission layer, the second emission layer, or the third emission layer includes at least one first compound, and formulae for the first compound include at least one 15N.

公开(公告)号：US20210320273A1

公开(公告)日：2021-10-14

申请号：US17249231

申请日：2021-02-24

Applicant: Samsung Display Co., Ltd.

Inventor： Yeongji IM ,  Jino LIM ,  Beomjin KIM ,  Seunggak YANG

IPC: H01L51/50 ,  H01L27/32 ,  C09K11/06

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer located between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a host and a dopant, the host includes a first compound and a second compound, and the first compound, the second compound, and the dopant are different from one another. Two compounds in the host included in the emission layer may have different HOMO and LUMO energy levels and may form an exciplex, and a difference between a HOMO energy level and a LUMO energy level of the exciplex (ΔEexciplex) may be greater than a difference between a HOMO energy level and a LUMO energy level of the dopant (ΔEdopant).