Study on Optical properties of Lightguiding Plate for Micro Injection Molding and Micro Injection Compression Molding

摘要

This paper presents the optical properties of microstructure of lightguiding plate for micro injection molding (MIM) and micro injection compression molding (MICM). The lightguiding plate is applied on LCD of two inch of digital camera. Its radius of micro-structure is from 100μm to 300μm by linearity expansion. The material of lightguiding plate is PMMA. This paper discusses the optical properties for different process parameters by single-parameter method for micro injection molding and micro injection compression molding. The important process parameters of optical properties are the mold temperature, melt temperature and packing pressure in micro injection molding. The important process parameters of optical properties are the compression distance, mold temperature and compression speed in micro injection compression molding. The process of micro injection compression molding is better than micro injection molding for optical properties.