Vinyl polymer and organic electroluminescent device

Details Vinyl polymer and organic electroluminescent device Vinyl polymer and organic electroluminescent device

2007-01-09

2007-01-09

Davis, Brian (Department: 1621)

Stock material or miscellaneous articles

Composite

Of inorganic material

C313S504000, C257S040000, C526S310000

Reexamination Certificate

active

11249421

ABSTRACT:
An organic electroluminescent device having an organic layer between a pair of electrodes. The organic layer (in particular, a hole-transporting layer) has a polymer of a vinyl compound represented by the following formula (1):wherein R1and R2are the same or different, each representing a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group. The glass transition temperature of the polymer is about 200 to 250° C., and the polymer has high heat-resistance. Thus, the use of the polymer improves heat resistance of an organic EL device.

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