Patent ID: 8742430

Claim:
An organic light emitting element comprising: a first substrate; a light emitting layer provided adjacent to the first substrate; a pair of electrodes provided adjacent to the first substrate so as to sandwich the light emitting layer therebetween, one of the pair of electrodes being a transparent electrode; a protective layer disposed on the transparent electrode; a first light extraction layer having microscopic particles disposed therein; a second substrate which is disposed facing the first substrate; a second light extraction layer having microscopic particles disposed therein, the second light extraction layer being provided adjacent to and connected to the second substrate, the microscopic particles of the second light extraction layer being randomly arranged with an air gap formed between at least one of the microscopic particles and an adjacent microscopic particle in a planar direction of the second substrate, the microscopic particles of the second light extraction layer being connected by the second substrate; a resin layer made of any one of polyester resin, acryl resin, polycarbonate, polyethylene, and polypropylene being interposed between at least the first light extraction layer and the second light extraction layer, and at least making contact with the first light extraction layer; the second light extraction layer having an average index of refraction of 1.5 which is approximately the same as an index of refraction of the resin layer; and the microscopic particles of the first light extraction layer having an index of refraction of at least 2, and a material of the resin layer fills a space between the microscopic particles of the first light extraction layer.