Blue-emitting polymer and organic electroluminescent device...

Details Blue-emitting polymer and organic electroluminescent device... Blue-emitting polymer and organic electroluminescent device...

2006-01-05

2009-06-23

Shosho, Callie E (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C548S126000, C257S040000, C257SE51028, C257SE51036, C528S397000, C528S422000, C528S423000, C313S504000, C313S506000

Reexamination Certificate

active

07550207

ABSTRACT:
A blue-emitting polymer in which a bisindenospirofluorene unit is incorporated in a polyarylene polymer backbone, and an organic EL device using the blue-emitting polymer as a light-emitting material. One example of the blue-emitting polymer may be represented by Formula 1:where Ar, R1through R14, X1and X2, M and n are defined in the specification. The organic EL device exhibits excellent emission efficiency, low turn-on voltage, good color stability and color purity.

REFERENCES:
patent: 5708130 (1998-01-01), Woo et al.
patent: 5728801 (1998-03-01), Wu et al.
patent: 5945502 (1999-08-01), Hsieh et al.
patent: 6169163 (2001-01-01), Woo et al.
patent: 2004/0192871 (2004-09-01), Wang et al.
patent: 2007/0252139 (2007-11-01), Mckiernan et al.
patent: WO 99/54385 (1999-10-01), None
Olivier Stéphan et al., “Blue light electroluminescent devices based on a copolymer derived from fluorene and carbazole”, Synthetic Metals 106, pp. 115-119, 1999.
D. Sainova et al., “Control of color and efficiency of light-emitting diodes based on polyfluorenes blended with hole-transporting molecules”, Applied Physics Letters, vol. 76, No. 14, p. 1810, Apr. 3, 2000.

Affiliated with

Also associated with

Rating

Blue-emitting polymer and organic electroluminescent 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 Blue-emitting polymer and organic electroluminescent device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blue-emitting polymer and organic electroluminescent device... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4139881