Patent ID: 7422800

Claim:
An organic electroluminescent device comprising: a pair of electrodes; an organic compound layer between the pair of electrodes, the organic compound layer comprising a light emitting layer, wherein the light emitting layer comprises: a light emitting material; and an electrically inactive organic compound capable of being subjected to dry film formation, the electrically inactive organic compound having an energy difference Eg between a highest occupied molecular orbital and a lowest unoccupied molecular orbital of 4.0 eV or more, wherein the electrically inactive organic compound is a compound represented by formula (1): L-(Ar) m Formula (1) wherein Ar represents a group represented by formula (2); L represents a trivalent or tetravalent benzene skeleton; and m represents an integer of 3 or 4: wherein R 1 represents a substituent; n 1 represents an integer of 0 to 2, when plural R 1 s are present, the plural R 1 s are the same or different; R 3 represents a substituent; n 3 represents an integer of 0 to 1 and when plural R 3 s are present, the plural R 3 s are the same or different.