Patent ID: 9306189
Filing Date: 2016-04-05
CPC Classification: H01L

Claim Text:
1. An organic light emitting display device, comprising: a substrate; a display unit on the substrate; and an encapsulation layer on the display unit, wherein the encapsulation layer comprises a lower layer on the display unit; a pattern layer on the lower layer; and an upper layer on the pattern layer, the lower layer comprises at least one of an inorganic film and an organic film, the pattern layer comprises an uneven pattern having a plurality of protrusions which extend from a surface of the lower layer toward the upper layer and are spaced apart from each other, at least one of the plurality of protrusions being separated from another one of the plurality of protrusions on the surface of the lower layer, and a filling layer on the uneven pattern, the filling layer separating the plurality of protrusions from the upper layer and covering the plurality of protrusions so that the filling layer fills an entire space between each of the plurality of protrusions and directly contacts the entire surface of the lower layer between each protrusion, the upper layer comprises at least one of an inorganic film and an organic film, and the uneven pattern comprises a block copolymer.