LIGHT GUIDE PLATE, LIGHT GUIDE PLATE MOLDING DIE, METHOD OF MANUFACTURING LIGHT GUIDE PLATE MOLDING DIE, AND METHOD OF MANUFACTURING LIGHT GUIDE PLATE

摘要

PROBLEM TO BE SOLVED: To stably improve emission efficiency of light from a light source.;SOLUTION: The light guide plate 110 includes a light outgoing surface 110A into which the light from a light source enters from the side face and from which light is emitted and a light reflection face 110B to reflect light. At least on one of the light outgoing surface 110A and the light reflection face 110B, a plurality of first light diffusion parts 111 which are formed in concave or convex shape in thickness direction of the light guide plate 110 and diffuses light and second light diffusion parts 112 which are formed so as to be uniformly rough surface throughout between the plurality of the first light diffusion parts are provided.;COPYRIGHT: (C)2008,JPO&INPIT