| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding mold of a side-light type light guide plate which solves the problem wherein a light incident surface forming surface forming a non-planar light incident surface is worn and damaged when injection molding the side-light type guide plate having the non-planar light incident surface such as groove or dot, and can easily test a plurality of light incident surfaces by a simple mechanism. SOLUTION: The light incident surface forming surface 42 for forming the light incident surface P3 of an injection molding mold 11 for the side-light type light guide plate P having the non-planar light incident surface P3 can be retracted outward from a cavity forming position. COPYRIGHT: (C)2008,JPO&INPIT |
