Organic electroluminescence device and organic light emitting medium
AssigneeIdemitsu Kosan Co., Ltd.
InventorsKenichi Fukuoka, Chishio Hosokawa
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Abstract
An electroluminescence device comprising a pair of electrodes and a layer of an organic light emitting medium disposed between the pair of electrodes, wherein the layer of an organic light emitting medium comprises (A) at least one electron transporting compound and (B) an anthracene derivative having a specific structure and an organic light emitting medium comprising the above components (A) and (B). The device exhibits excellent heat resistance, has a long life time and provides efficient light emission. The organic light emitting medium is advantageously used for the organic EL device
Claims13
An organic electroluminescence device which comprises a pair of electrodes, a hole injecting layer, a hole transporting layer, a layer of an organic light emitting medium, and an electron injecting layer disposed between the pair of electrodes, wherein the layer of an organic light emitting medium comprises (A) at least one electron transporting compound and (B) at least one compound selected from anthracene derivatives represented by general formula (I):
- A1—L—A2 (I)
- wherein A1 and A2 each represent a substituted or unsubstituted monphenylanthryl group or a substituted or unsubstituted diphenylanthryl group and may represent a same group or different groups and L represents a single bond or a divalent connecting group;
- or anthracene derivatives represented by general formula (II):
- A3—An—A4 (II)
- wherein An represents a substituted or unsubstituted divalent anthracene residue group and A3 and A4 each represent a substituted or unsubstituted monovalent condensed aromatic ring group having 10 or more carbon atoms or a substituted or unsubstituted non-condensed ring aryl group having 12 or more carbon atoms and may represent a same group or different groups.
Dependencies are inferred from the claim text.