Light-emitting material for organic electroluminescence device, and organic electroluminescence device for which the light-emitting material is adapted
AssigneeToyo Ink Manufacturing Co., Ltd.
InventorsToshio Enokida, Michiko Tamano, Satoshi Okutsu
Life of this patent
Estimating the term…
Abstract
A light-emitting material of the following general formula [1] for an organic electroluminescence device, wherein each of A1 to A4 is a substituted or unsubstituted aryl group having 6 to 16 carbon atoms, and each of R1 to R8 is independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted amino group, provided that adjacent substituents may form an aryl ring.
Claims10
An organic electroluminescence device obtained by forming a hole-injecting layer, a light-emitting layer and an electron-injecting layer between a pair of electrodes which are an anode and a cathode, the light-emitting layer comprising at least one light-emitting material selected from the group consisting of the following general formulas:
- wherein each of A1 to A4 is a substituted or unsubstituted aryl group having 6 to 16 carbon atoms, and each of R1 to R8 is independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted amino group, provided that adjacent substituents may form an aryl ring,
- wherein each of R1 to R28 is independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted amino group, provided that adjacent substituents of R1 to R4 or R5 to R8 may form an aryl ring,
- wherein each of R1 to R8 and R29 to R48 is independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted amino group, and each of X1 to X4 is independently O, S, C═O, SO2, (CH2)x—O—(CH2)y, a substituted or unsubstituted alkylene group or a substituted or unsubstituted alicyclic residue, provided that each of x and y is independently an integer of 0 to 20 and that x+y=0 in no case, provided that adjacent substituents of R1 to R4 or R5 to R8 may form an aryl ring,
- wherein each of R1 to R8 and R29 to R48 is independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted amino group, and each of X1 to X4 is independently O, S, C═O, SO2, (CH2)x—O—(CH2)y, a substituted or unsubstituted alkylene group or a substituted or unsubstituted alicyclic residue, provided that each of x and y is independently an integer of 0 to 20 and that x+y=0 in no case, provided that adjacent substituents of R1 to R4 or R5 to R8 may form an aryl ring, and
- wherein each of R1 to R8 and R29 to R48 is independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted amino group, and each of Y1 to Y8 is independently a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms or a substituted or unsubstituted aryl group having 6 to 16 carbon atoms, provided that adjacent substituents of R1 to R4 or R5 to R8 may form an aryl ring.
Dependencies are inferred from the claim text.