Patent ID: 7892657

Claim:
A light emitting element comprising: a first electrode; a second electrode; and a plurality of layers located between the first electrode and the second electrode, wherein the plurality of layers comprises: a first layer comprising a light emitting substance; and a second layer for transporting a hole, wherein the second layer comprises: a carbazole derivative represented by General Formula (1); and a metal oxide, and wherein in the formula, R 1 refers to hydrogen, halogen, a cyano group, an alkyl group having a carbon number of 1 to 20, a haloalkyl group having a carbon number of 1 to 20, an alkoxyl group having a carbon number of 1 to 20, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocycle residue, and R 2 to R 5 is the same or different material and refer to hydrogen, halogen, a cyano group, an alkyl group having a carbon number of 1 to 20, an alkoxyl group having a carbon number of 1 to 20, an acyl group having a carbon number of 1 to 20, a haloalkyl group having a carbon number of 1 to 20, a dialkylamino group having a carbon number of 1 to 20, a diarylamino group having a carbon number of 1 to 20, a substituted or unsubstituted heterocycle residue, or a carbazolyl group.