公开(公告)号：US11152583B2

公开(公告)日：2021-10-19

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.

公开(公告)号：US11943945B2

公开(公告)日：2024-03-26

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: H10K50/12 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K85/30 ,  H10K85/60 ,  H10K101/10 ,  H10K101/00 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K50/11 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K85/322 ,  H10K85/342 ,  H10K85/622 ,  H10K85/631 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2101/90

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.