| abstract |
PURPOSE: To obtain the title high-luminance EL element of full color, with its concentration quenching prevented, capable of operating at low voltage, by dispersing an organic charge-transfer material containing a specific tertiary diamine in an organic luminescent material. n CONSTITUTION: The objective EL element can be obtained by dispersing (A) an organic charge-transfer material containing a tertiary diamine of the formula (R 1 to R 4 are each H, alkyl, aryl, substituted alkyl or substituted aryl; R 5 is divalent organic group) {e.g. 1-1-bis(4-di-p-tolylaminophenyl)cyclohexane, 4-(di-p- tolylamino)-4'-[4-(di-p-tolylamino)-styryl]stilbene} in (B) an organic luminescent material. n COPYRIGHT: (C)1992,JPO&Japio |