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US 6,649,089 B2Granted
Red organic electroluminescent materials
AssigneeE-Ray Optoelectronics Technology Co., Ltd.
InventorsMin-Jong Chang, Wen-Yao Huang, Wen-Chin Huang
Life of this patent
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Abstract
A red fluorescent material comprising a compound of Formula I: wherein R1, R2, R3, R4, R5, and R6 each independently represents a linear or branched aliphatic group having from 1 to 10 carbon atoms or an aromatic group having from 5 to 20 carbon atoms.
Claims7
A compound of Formula I:
- wherein R1, R2, R3, R4, R5, and R6 each independently represents a linear or branched aliphatic group having from 1 to 10 carbon atoms or an aromatic group having from 5 to 20 carbon atoms.
A compound of Formula II:
- wherein R1, R2, and R3 each independently represents a linear or branched aliphatic group having from 1 to 10 carbon atoms or an aromatic group having from 5 to 20 carbon atoms.
A compound of Formula III:
- wherein R represents a linear or branched aliphatic group having from 1 to 10 carbon atoms or an aromatic group having from 5 to 20 carbon atoms.
Dependencies are inferred from the claim text.