OLED OLED LIGHT DIRECTING FILM FOR OLED ILLUMINATING DEVICE AND OLED ILLUMINATING DEVICE COMPRISING THE SAME

摘要

The present invention relates to a substrate; A light emitting portion formed on one surface of the substrate and including a plurality of first lens structures arranged in parallel; And a plurality of second lens structures including a light-incident portion formed on the other surface of the substrate and arranged in parallel, wherein the first lens structure has an inclination angle of 20 DEG to 40 DEG with respect to a plane direction of the base film Wherein the second lens structure has a first inclined surface and a second inclined surface having an inclination angle of 60 to 90 degrees with respect to a plane direction of the base film and the second lens structure has an inclination angle of 40 to 55 degrees with respect to a plane direction of the base film And a fourth inclined surface having an inclination angle of 80 DEG to 90 DEG with respect to a plane direction of the base film, and an OLED lighting device including the same.;