Patent ID: 9620688
Date: 2017-04-11
CPC Classifications: G02B,G02F,H01L

Claim:
1. A display device comprising: a display panel configured to display an image; a plurality of Light Emitting Diodes (LEDs) configured to generate light to supply light to the display panel; a light guide panel configured to guide light to the display panel; and a micro-lens film that concentrates and diffuses light emitted from the light guide panel, the micro-lens film including a base film, a lens unit at an upper surface of the base film, and a back-coating film at a lower surface of the base film, wherein the lens unit includes unit block groups randomly arranged at the upper surface of the base film, each unit block group containing randomly arranged fixed-shape lenses having different sizes, and micro-beads randomly arranged on both surfaces of the fixed-shape lenses and the upper surface of the base film.