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US 2004/0106003 A1Published application
Binaphthalene derivatives for organic electro-luminescent devices
AssigneeCanon Kabushiki Kaisha
InventorsJian Ping Chen, Xiao-Chang Charles Li, Koichi Suzuki, Kazunori Ueno
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Abstract
The present invention relates to an organic light emitting device (OLED) in which a binaphthalene derivative is used as the emissive layer and/or one or more of the charge transport layers, or as a host or dopant material for one or more of such layers.
Claims14
An organic light emitting device comprising:
- an emissive layer sandwiched between at least a cathode and an anode, wherein the emissive layer includes a first binaphthalene derivative expressed according to the following general formula:
- 11
- wherein each of R1 to R12 independently represents a hydrogen atom, an alkyl group, an alkoxy group, a vinyl group, an aromatic compound, or a hetero-aromatic compound;
- wherein the 4 and 4′ positions on the naphthalene rings are unsubstituted;
- wherein X can represent either carbon or nitrogen atoms;
- and
- wherein if X represents nitrogen, then R6 and R12 are limited to representing only hydrogen atoms.
4 more elements
An organic light emitting device comprising:
- an emissive layer sandwiched between at least one charge transport layer and an anode and a cathode, wherein the charge transport layer includes a binaphthalene derivative expressed according to the following general formula:
- 13
- wherein each of R1 to R12 independently represent a hydrogen atom, an alkyl group, an alkoxy group, a vinyl group, an aromatic compound, or a hetro-aromatic compound;
- wherein the 4 and 4′ positions on the naphthalene rings are unsubstituted;
- wherein X can represent either carbon or nitrogen atoms;
- and
- wherein if X represents nitrogen, then R6 and R12 are limited to representing only hydrogen atoms.
4 more elements
Dependencies are inferred from the claim text.