Pyran derivative

Details Pyran derivative Pyran derivative

2007-04-04

2008-05-13

Shosho, Callie (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257S102000, C257SE51031

Reexamination Certificate

active

07371470

ABSTRACT:
A light-emitting compound that can be easily applied to vacuum vapor deposition and exhibit long wavelength light is disclosed. Further, a light-emitting element without inferior luminescence properties due to the carbonization of a light-emitting compound during vapor deposition; and a light-emitting device that is composed of the light-emitting elements are also disclosed. A pyran derivative is represented by the following general formula 1:wherein R1is a hydrogen element or an alkoxy group.

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English translation of Office Action, Chinese Patent Application No. 20040068600, dated Jun. 29, 2007.
Jung, B.J. et al., “Pure-Red Dye for Organic Electroluminescent Devices: Bis-Condensed DCM Derivatives,” Advanced Functional Materials, vol. 11, No. 6, (2000), pp. 430-434.

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