Light extraction layer substrate for oled and method of fabricating thereof

Extract the present invention light for more particularly to an organic light emitting device capable of the organic light emitting device improves the brightness of the display and light employed with the improved light extraction efficiency related to a light extraction layer substrate and a manufacturing method for an organic light emitting element It relates to a layer substrate and a manufacturing method thereof. To this end, the present invention is a substrate; A base layer formed on the substrate; Being formed on said base layer, the first texturing (texturing) unit consisting of a plurality of first projections are continuously or discontinuously protruding from said base layer; And a method wherein the organic light emitting element light extraction layer substrates, characterized in that consisting of the oxide or nitride thin film containing two textured portion formed of a plurality of second protrusions protruding on the outer circumferential surface of the first protrusions in a continuous or discontinuous and a process for producing It provides.