Composition and light emitting device using the same

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United States of America Patent

PATENT NO 11532790
SERIAL NO

16500872

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Abstract

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A composition which is useful for producing a light emitting device having excellent external quantum efficiency contains two or more compounds represented by the formula (C-1) and a phosphorescent compound, in which at least one of the compounds represented by the formula (C-1) is a compound in which RC is a group represented by the formula (C′-1).

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Patent Owner(s)

  • SUMITOMO CHEMICAL COMPANY, LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayashi, Naoki Osaka, JP 292 2545
Inakazu, Shinichi Tsukuba, JP 6 4
Sasada, Toshiaki Tsukuba, JP 45 29

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