Patent ID: 9279919
Filing Date: 2016-03-08
CPC Classification: B32B,G02B,G02F,G03F,G09F

Claim Text:
1. A light diffusing member comprising: a base material with optical transparency; a plurality of light-shielding layers dotted on one surface of the base material; and an optically transparent material layer provided on the one surface of the base material and thicker than the light-shielding layers; wherein at least a light-shielding layer, which is part of the plurality of light-shielding layers, has a planar shape surrounded by a first figure and a second figure contained in the first figure or a planar shape surrounded by at least part of the first figure and at least part of the second figure arranged so as to be partially overlaid with the first figure, when viewed in a direction of a normal to the one surface of the base material, hollow portions are provided in a formation region of the light-shielding layers, each hollow portion being shaped so that a cross-sectional area obtained by cutting along a plane parallel to the one surface of the base material is large on the light-shielding layer side and is gradually decreased as being away from the light-shielding layer, and a part of the optically transparent material layer other than the hollow portions is taken as a light transmitting portion.