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US 10,403,827 B2Granted
2,2′-bibenzo[D]imidazolidene compound having condensed rings at the 1-, 1′-, 3- and 3′-positions, and organic light-emitting element, display device, image information processing apparatus, lighting device, image forming apparatus and exposure unit, each containing the same
AssigneeCanon Kabushiki Kaisha
InventorsJun Kamatani, Yosuke Nishide, Hirokazu Miyashita, Naoki Yamada
Life of this patent
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Abstract
A stable 2,2′-bibenzo[d]imidazolidene compound is provided. The 2,2′-bibenzo[d]imidazolidene compound is expressed by the following General Formula (1). In General Formula (1), Ar1 to Ar8 each represent a substituted or unsubstituted condensed ring. R1 to R8 each represent a hydrogen atom or a substituent.
Claims16
A 2,2′-bibenzo[d]imidazolidene compound expressed by the following general formula (1):
- wherein Ar1 to Ar4 each represent a substituted or unsubstituted condensed ring, and R1 to R8 each represent a hydrogen atom or a substituent selected from the group consisting of halogen atoms, alkyl groups having a carbon number in the range of 1 to 8, and substituted or unsubstituted aromatic hydrocarbon groups.
Dependencies are inferred from the claim text.