LG Display Co., Ltd.
Organic light emitting diode display device for improving light extraction efficiency of pixels

Abstract:

Disclosed is a light emitting display device which facilitates to improve light-extraction efficiency of pixels, and to maximize light-extraction efficiency of each pixel, wherein the light emitting display device includes a substrate having a first area and a second area, a planarization coating layer prepared on the substrate and configured to have a first curve pattern prepared on the first area, and a second curve pattern prepared on the second area, and an emission device prepared on the first curve pattern and the second curve pattern, wherein a thickness of the planarization coating layer overlapping the first curve pattern is different from a thickness of the planarization coating layer overlapping the second curve pattern, and each of the first curve pattern and the second curve pattern includes a plurality of protruding portions having an aspect ratio of 0.4.about.0.6.