Invention Grant
- Patent Title: Organic light-emitting device incorporating a triplet-triplet annihilation promoter and method of forming the same
- Patent Title (中): 含有三线态三重态湮灭促进剂的有机发光器件及其形成方法
-
Application No.: US14398921Application Date: 2013-05-03
-
Publication No.: US09548467B2Publication Date: 2017-01-17
- Inventor: Robert Archer
- Applicant: Cambridge Display Technology Limited , Sumitomo Chemical Company Limited
- Applicant Address: GB Godmanchester JP Tokyo
- Assignee: Cambridge Display Technology Limited,Sumitomo Chemical Company Limited
- Current Assignee: Cambridge Display Technology Limited,Sumitomo Chemical Company Limited
- Current Assignee Address: GB Godmanchester JP Tokyo
- Agency: Wolf, Greenfield & Sacks, P.C.
- Priority: GB1207866.3 20120504
- International Application: PCT/GB2013/051171 WO 20130503
- International Announcement: WO2013/164647 WO 20131107
- Main IPC: H01L29/08
- IPC: H01L29/08 ; H01L35/24 ; H01L51/00 ; H01L51/50 ; H01L51/56
Abstract:
Provided are organic light-emitting devices having an anode; a cathode; a first light-emitting layer between the anode and the cathode, the first light-emitting layer having a fluorescent light-emitting material with a triplet excited state energy level T1F and a triplet-triplet annihilation (TTA) promoter with a triplet excited state energy level T1T, wherein T1F>1T; and a second light-emitting layer between the anode and the cathode and adjacent to the first light-emitting layer, the second light-emitting layer having a phosphorescent material with a triplet excited state energy level T1P, wherein T1P>T1T.
Public/Granted literature
- US20150115245A1 ORGANIC LIGHT EMITTING DEVICE AND METHOD Public/Granted day:2015-04-30
Information query
IPC分类:
