Patent ID: 11943945
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 0:
1. An organic light-emitting diode (OLED) comprising:
an anode;
a cathode; and
a light emitting layer which is disposed between the anode and the cathode,
wherein the light emitting layer comprises,
a hole-transporting host and an electron-transporting host which form an exciplex together; wherein the hole-transporting host and the electron-transporting host are mixed together in a single layer; 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,
wherein λmax of photoluminescence of the exciplex is about 450 nm or less.