Elektrolumineszente Lichtemissionseinrichtung mit einer optischen Gitterstruktur und Verfahren zur Herstellung derselben
A light emission device 1 comprises a substrate 13 and a layer arrangement 10 that has been applied to the substrate 13. The layer arrangement 10 has a first electrode layer 12 consisting of a conductive material and a second electrode layer 14 consisting of a conductive material. At least one light-emitting layer 16 consisting of an organic material is arranged between the first and second electrode layers 12 and 14. At least one intermediate layer 18 having an optical grating structure is arranged between the light-emitting layer 16 and one of the two electrode layers. A first main surface 18c of the intermediate layer 18 faces the light-emitting layer 16, said first main surface 18c of the intermediate layer having a planar design at least in the region of the optical grating structure within a tolerance range. At least regions of the intermediate layer 18 between the first main surface and a second main surface 18c and 18d thereof are conductive.
EP 2541637 A1: 20110630