OLED device with certain fluoranthene light-emitting dopants
US8420229B2 · kind B2 · utility
1Cited by
89References
10Claims
0Family size
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Key dates
| Filing date | Oct 26, 2007 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Aug 10, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/342
Abstract
An OLED device comprising a cathode, an anode, and having therebetween a light emitting layer and an electron-injecting layer, where (a) the light emitting layer contains a host and up to 50 volume % of a light-emitting fluoranthene compound with a 7,10-diaryl substituted fluoranthene nucleus having no aromatic rings annulated to the fluoranthene nucleus; and (b) the electron-injecting layer being located between the cathode and the light-emitting layer contains an organic alkali metal compound. It provides reduced drive voltage, operational stability and luminance of OLED devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.