Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2007-09-25
2010-06-08
Chu, Yong (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C564S305000
Reexamination Certificate
active
07732619
ABSTRACT:
A novel stilbene derivative is provided with motivation of providing a blue emissive material showing excellent color purity. The use of the stilbene derivative of the present invention allows the fabrication of a blue-emissive light-emitting element with excellent color purity. The invention also includes an electronic device equipped with a display portion in which the stilbene derivative is employed. The stilbene derivative of the present invention is represented by formula (1), in which Ar1and Ar2may form a 5-membered ring by being directly bonded to each other. In formula (1), A11represents any one of substituents represented by general formulas (1-1) to (1-3). The variables shown in formula (1) and (1-1) to (1-3) are as defined in the specification.
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Egawa Masakazu
Kawakami Sachiko
Nomura Ryoji
Ohsawa Nobuharu
Osaka Harue
Chu Yong
Husch Blackwell Sanders LLP
Semiconductor Energy Laboratory Co,. Ltd.
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