公开(公告)号：US20190088896A1

公开(公告)日：2019-03-21

申请号：US15957667

申请日：2018-04-19

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Wook Kim ,  Sung-Soo Bae ,  Hye In Jeong ,  Dong Hyun Kim ,  Seul Ong Kim ,  Tsuyoshi Naijo ,  Hwan Hee Cho

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/56

Abstract: An organic light emitting device includes: a first electrode; a second electrode that overlaps the first electrode; and an organic layer that is disposed between the first electrode and the second electrode, wherein the organic layer comprises a hole transport region that includes a hole transport material and a p-dopant, and wherein when a doping amount of the p-dopant doped to the hole transport region exceeds 1 wt %, the following Equation 1 is satisfied, while when the doping amount of the p-dopant is 1 wt % or less than 1 wt %, the following Equation 2 is satisfied: HOMO_HTM−LUMO_p-dopant −0.05 eV   [Equation 2] In Equation 1 and Equation 2, HOMO_HTM denotes HOMO energy of the hole transport material and LUMO_p-dopant denotes LUMO energy of the p-dopant.

公开(公告)号：US10673006B2

公开(公告)日：2020-06-02

申请号：US15957667

申请日：2018-04-19

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Wook Kim ,  Sung-Soo Bae ,  Hye In Jeong ,  Dong Hyun Kim ,  Seul Ong Kim ,  Tsuyoshi Naijo ,  Hwan Hee Cho

IPC: H01L51/56 ,  H01L27/32 ,  H01L51/50 ,  B82Y10/00 ,  H01L51/00

Abstract: An organic light emitting device includes: a first electrode; a second electrode that overlaps the first electrode; and an organic layer that is disposed between the first electrode and the second electrode, wherein the organic layer comprises a hole transport region that includes a hole transport material and a p-dopant, and wherein when a doping amount of the p-dopant doped to the hole transport region exceeds 1 wt %, the following Equation 1 is satisfied, while when the doping amount of the p-dopant is 1 wt % or less than 1 wt %, the following Equation 2 is satisfied: HOMO_HTM−LUMO_p-dopant −0.05 eV  [Equation 2] In Equation 1 and Equation 2, HOMO_HTM denotes HOMO energy of the hole transport material and LUMO_p-dopant denotes LUMO energy of the p-dopant.