Patent ID: 9618674
Date: 2017-04-11
CPC Classifications: B29D,G02B

Claim:
1. A light guide panel, comprising: a top surface; a bottom surface configured to be opposite to the top surface and facing a reflective sheet; side surfaces connecting the top surface and the bottom surface, the side surfaces including a light incident surface and an opposite surface opposite to the light incident surface, wherein: the bottom surface comprises a flat reference surface and a plurality of diffusion patterns including a plurality of recesses recessed from the flat reference surface and a plurality of protrusions protruding from the flat reference surface and formed along at least parts of circumferences of the recesses; each of the plurality of protrusions includes a first protrusion disposed in a first region with respect to a reference line and a second protrusion disposed in a second region with respect to the reference line, the reference line extending substantially perpendicular to the light incident surface, passing through each of centers of the plurality of recesses and dividing each of the plurality of recesses in half into the first region and the second region; and each of a volume of the second protrusions is less than half each of a volume of the first protrusions, and wherein each of the first regions is disposed at the same one side with respect to the reference line.