ORGANIC ELECTROLUMINESCENCE ELEMENT

[Object]The present invention provides an organic electroluminescent device having a capping layer comprising a material having a high absorption coefficient in the wavelength range of 400 nm to 410 nm, a high refractive index, good thin-film stability, excellent durability and lightfastness, and no absorption in the respective wavelength ranges of blue, green and red in order to prevent the light in the 400 nm to 410 nm wavelength of sunlight from being absorbed and affecting the materials inside the device and to improve the light extraction efficiency.[Means of Realizing the Object]Since the arylamine compound having a specific structure in the present invention is excellent in the stability and durability of the thin film, an organic EL device obtained by selecting amine compounds with high absorbance in the absorption spectrum at concentration 10-5 mol/L at wavelengths of 400 nm to 410 nm, from amine compounds having a specific benzoazole ring structure with a high refractive index as a material of a capping layer, exhibits good characteristics.