| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a light diffusing film that is capable of diffusing light emitted by a light source and of reducing uneven illuminance. <P>SOLUTION: A manufacturing method of a light diffusing film comprises: a step (1) for forming a film with a resin composition that includes both a resin component forming a polymer matrix and a fine particle; and a step (2) for stretching the film formed in the step (1). The resin component forming the polymer matrix differs from the fine particle in a refractive index, and the difference of refractive index is equivalent to or greater than 0.1. In addition, a difference between a glass-transition temperature (Tg(2)) of the resin component forming the polymer matrix and a glass-transition temperature (Tg(1)) of the fine particle is 0 to 150°C, and a temperature of stretching in the step (2) is Tg(1)+0°C to Tg(1)+70°C. <P>COPYRIGHT: (C)2012,JPO&INPIT |
