Patent ID: 8648382
Filing Date: 2014-02-11
Classification: H01L,H05B

Abstract:
1. A planar light emitting device, comprising: a transparent substrate that is quadrilateral in plan view; and an organic EL element formed on a first surface side of the transparent substrate, wherein the organic EL element comprises: wherein a light emitting part is formed of a region where the only organic layer intervenes between the planar anode and the planar cathode, the plane shape of the light emitting part being quadrilateral, two distances between predetermined two parallel sides of the four sides of the light emitting part and outer circumferential edges of the transparent substrate on sides adjacent to the two parallel sides, respectively, being smaller than two distances between the other two parallel sides and the outer circumferential edges of the transparent substrate on sides adjacent to the other two parallel sides, respectively, and wherein the cathode feeding part and the anode feeding part are located along said other two parallel sides of the light emitting part in plan view, and the anode feeding part is located at each side, in a width direction, of the cathode feeding part.