公开(公告)号：US20210184152A1

公开(公告)日：2021-06-17

申请号：US16996599

申请日：2020-08-18

Applicant: Samsung Display Co., Ltd.

Inventor： Seungjin CHU ,  Kyungsik KIM ,  Sungwook KIM ,  Seulong KIM ,  Tsuyoshi NAIJO ,  Yunjee PARK ,  Sungsoo BAE ,  Dongchan LEE ,  Hyewon CHOI ,  Jaeweon HUR

IPC: H01L51/50 ,  H01L51/00

Abstract: An organic light-emitting device includes a mixed layer, an emission layer, and a buffer layer and satisfies one of Equation 1 or Equation 2 and Equation 3: T1(D)≥T1(Mix)+0.3 eV  Equation 1 T1(H)≥T1(Mix)+0.3 eV  Equation 2 T1(Mix)

公开(公告)号：US20210098713A1

公开(公告)日：2021-04-01

申请号：US16904419

申请日：2020-06-17

Applicant: Samsung Display Co., Ltd.

Inventor： Hyewon CHOI ,  Tsuyoshi Naijo ,  Yunjee Park ,  Sung-Soo Bae ,  Dongchan Lee

IPC: H01L51/00 ,  C09K11/06

Abstract: An organic electroluminescence device of the present embodiments includes a first electrode, a second electrode on the first electrode, and a first emission layer and a second emission layer, both between the first electrode and the second electrode, wherein the first emission layer includes a first host and a first dopant including an anthracene-based compound, the second emission layer includes a second host represented by Formula H-1 and a second dopant including an organometal compound, and the first emission layer and the second emission layer are adjacent to each other. The device of the present embodiments thereby shows high emission efficiency and long-life characteristics.