| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electric field light emitting device, which has high luminosity and stable red luminescence. SOLUTION: A mixture containing at least one sort of aminostyryl compound expressed with the following formula [I] or [II] to at least 1 part of an organic layers 5, 5a, or 5b, which have a luminescence domain, is contained. Formula [I]: Y1-CH=CH-X1-CH=CH-Y2 Formula [II]: Y3-CH=CH-X2 However in the formula, X1 and X2 express aryl group, such as anthracene group, and Y1, Y2 and Y3 express arylamino group or the like. |
