公开(公告)号：US20210408421A1

公开(公告)日：2021-12-30

申请号：US17473261

申请日：2021-09-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jang Joo KIM ,  Young Seo PARK ,  Sung Hun LEE ,  Kwon Hyeon KIM

IPC: H01L51/50

Abstract: An organic light-emitting diode (“OLED”) includes a bottom electrode, a top electrode disposed opposite to the bottom electrode, and an organic layer that is interposed between the bottom electrode and the top electrode and includes a hole-transporting host and an electron-transporting host forming an exciplex and a phosphorescent dopant having a triplet energy which is lower than the triplet energy of the hole-transporting host, the triplet energy of the electron-transporting host, and the triplet energy of the exciplex, and a lighting device and a display apparatus including the OLED. Instead of a phosphorescent dopant, the fluorescent dopant having a singlet energy which is lower than the singlet energy of the exciplex may be also used.

公开(公告)号：US20190097155A1

公开(公告)日：2019-03-28

申请号：US16197842

申请日：2018-11-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jang Joo KIM ,  Young Seo PARK ,  Sung Hun LEE ,  Kwon Hyeon KIM

IPC: H01L51/50 ,  H01L51/00

Abstract: Provided are an organic light-emitting diode (“OLED”) including a bottom electrode, a top electrode disposed opposite to the bottom electrode, and an organic layer that is interposed between the bottom electrode and the top electrode and includes a hole-transporting host and an electron-transporting host forming an exciplex and a phosphorescent dopant having a triplet energy which is lower than the triplet energy of the hole-transporting host, the triplet energy of the electron-transporting host, and the triplet energy of the exciplex, and a lighting device and a display apparatus including the OLED. Instead of a phosphorescent dopant, the fluorescent dopant having a singlet energy which is lower than the singlet energy of the exciplex may be also used.