Organic electroluminescent device and display apparatus

Details Organic electroluminescent device and display apparatus Organic electroluminescent device and display apparatus

2005-09-27

2008-12-16

Lefkowitz, Sumati (Department: 2629)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S506000, C428S690000, C428S917000

Reexamination Certificate

active

07466073

ABSTRACT:
The present invention provides a phosphorescent luminescent device which has high-efficiency and a long lifetime. The organic electroluminescent device according to the present invention includes a pair of electrodes and an organic layer disposed between the pair of electrodes, wherein the organic layer has at least a light-emitting layer, and the light-emitting layer include at least a host material and dopants containing at least a first dopant and a second dopant, and wherein a triplet lowest excitation level of the first dopant is higher than a triplet lowest excitation level of the host material, and a triplet lowest excitation level of the second dopant is lower than a triplet lowest excitation level of the host material.

REFERENCES:
patent: 6838818 (2005-01-01), Furugori et al.
patent: 6929873 (2005-08-01), Tsuboyama et al.
patent: 7265163 (2007-09-01), O'Neill et al.
patent: 2002/0146589 (2002-10-01), Akiyama et al.
patent: 2003/0141809 (2003-07-01), Furugori et al.
patent: 2004/0013905 (2004-01-01), Tsuboyama et al.
patent: 2005/0035707 (2005-02-01), Furugori et al.
patent: 2005/0048314 (2005-03-01), Antoniadis et al.
patent: 2005/0077817 (2005-04-01), Yamazaki et al.
patent: 2005/0084710 (2005-04-01), Kishino et al.
patent: 2002-50483 (2002-02-01), None

Affiliated with

Also associated with

Rating

Organic electroluminescent device and display apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Organic electroluminescent device and display apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic electroluminescent device and display apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4042955