ORGANIC ELECTROLUMINESCENCE ELEMENT

摘要

The present invention relates to an organic electroluminescence element in which a transparent first electrode 5, an organic light emitting layer 6, a second electrode 7 are stacked on a translucent substrate 1 in this order. The translucent substrate 1 includes a moisture-proof layer 1a facing the first electrode 5. An LR layer 2 and an HR layer 3 having a refractive index higher than a refractive index of the LR layer 2 are situated between the moisture-proof layer 1a and the first electrode 5 in this order from the moisture-proof layer 1a. An uneven structure 4 is provided at an interface between the LR layer 2 and the HR layer 3. A linear expansivity ± of the moisture-proof layer 1a, and a linear expansivity ² of the LR layer 2, and a linear expansivity ³ of the HR layer 3 satisfy a relation of ±‰¤²‰¤³.