Method of manufacturing light guide plate of keypad

Details Method of manufacturing light guide plate of keypad Method of manufacturing light guide plate of keypad

2011-07-12

2011-07-12

Del Sole, Joseph S (Department: 1743)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Light polarizing article or holographic article

C264S001250, C264S241000, C362S606000, C156S379600, C156S275500

Reexamination Certificate

active

07976741

ABSTRACT:
A method of manufacturing a light guide plate containing a plurality of light-guiding micro structures comprises the steps of: preparing a mold that has a concave hole formed by a plurality of light-guiding micro structures; pouring a mixture of ultraviolet curable resins and glass microbeads into the mold; attaching a carrier onto the mixture; using a rolling tool to roll the surface of the carrier, such that the mold is filled up with the mixture uniformly, while the air among the mold, the carrier and the mixture is discharged; and finally projecting the ultraviolet light onto the ultraviolet curable resin, such that the ultraviolet curable resin can be cured at the carrier and removed from the mold, so as to form a light guide plate having a plurality of light-guiding micro structures.

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