Light emitting device

Details Light emitting device Light emitting device

2005-02-25

2008-09-09

Yamnitzky, Marie R. (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257S040000, C257SE51024

Reexamination Certificate

active

07422799

ABSTRACT:
To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, the organic electroluminescent device includes an organic compound layer containing a hole transport layer, a light emitting layer, and an electron transport layer between a pair of electrodes, wherein the hole transport layer contains a hole transport material and an electrically inactive organic compound capable of being subjected to dry film formation and having an energy difference Eg between highest occupied molecular orbital and lowest unoccupied molecular orbital of 4.0 eV or more.

REFERENCES:
patent: 6303238 (2001-10-01), Thompson et al.
patent: 6444333 (2002-09-01), Okada et al.
patent: 2002/0057050 (2002-05-01), Shi
patent: 2002/0102433 (2002-08-01), Lee et al.
patent: 2003/0039858 (2003-02-01), Igarashi et al.
patent: 10-255985 (1998-09-01), None
patent: 2000-182775 (2000-06-01), None
patent: 2000-182777 (2000-06-01), None
Baldo et al., “Very high-efficiency green organic light-emitting devices based on electrophosphorescence”, Applied Physics Letters, vol. 75, No. 1, Jul. 1999, pp. 4-6.
Tsutsui et al., “High quantum efficiency in organic light-emitting devices with iridium-complex as a triplet emissive center”, Japanese Journal of Applied Physics, vol. 38, 1999, pp. 1502-1504.

Affiliated with

Also associated with

Rating

Light emitting device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3986247