METAL PLATE FOR MANUFACTURING LIGHT GUIDE PLATE, METHOD FOR MANUFACTURING LIGHT GUIDE PLATE USING THE SAME AND LIGHT GUIDE PLATE

摘要

PROBLEM TO BE SOLVED: To provide a method for injection molding a light guide plate by using a synthetic resin by manufacturing a metal plate easy to mold a recess pattern part of the guide plate and having a pattern for efficiently reflecting a light and mounting the metal plate on one or both side surfaces of a cavity of a mold.

SOLUTION: The light guide plate having a sectional shape of a depth of 2-100 μm in a semi-elliptical or semi-circular shape and a surface roughness Rz (according to JIS B 0601-1994) of 0.1-20 μm of an inner surface formed with a recess pattern of a rough surface is injection molded by using the synthetic resin by mounting the metal plate for manufacturing the guide plate on one or both the surfaces of the mold.

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