AROMATIC POLYCARBONATE RESIN PELLET FOR LIGHT GUIDE PLATE, LIGHT GUIDE PLATE, METHOD FOR MANUFACTURING LIGHT GUIDE PLATE AND SURFACE ILLUMINANT

摘要

PPROBLEM TO BE SOLVED: To provide a light guide plate which does not mar the characteristics of an aromatic polycarbonate resin; shows high light transmittance/ brightness and high degree of brightness uniformity; an aromatic polycarbonate resin pellet best suited for the manufacture of the light guide plate; a method for manufacturing the light guide plate; and a surface illuminant using the light guide plate. PSOLUTION: The aromatic polycarbonate resin pellet for the light guiding plate contains not more than 50,000 pieces/g of dust with a particle diameter of 0.5 to 1.0 m and not more than 3,000 pieces/g of dust with a particle diameter exceeding 1.0 m. The light guiding plate is formed of the aromatic polycarbonate resin and contains not more than 50,000 pieces/g of dust with a particle diameter of 0.5 to 1.0 m and not more than 3,000 pieces/g of dust with a particle diameter exceeding 1.0 m. PCOPYRIGHT: (C)2005,JPO&NCIPI