| 摘要 |
PROBLEM TO BE SOLVED: To provide a light diffusion film appropriate for a base film of a laminate. SOLUTION: This light diffusion film satisfies requirements (1) to (4). (1) A light diffusion layer containing a light diffusing component is disposed, on at least one surface of a biaxial stretching polyethylene terephthalate resin film. (2) The light diffusion layer is formed of at least thermoplastic resin and fine particles as the light diffusing component. (3) The light diffusion layer contains air bubbles which are independent of the fine particles. (4) The average of heights of the cambers at four corners is 0.5 mm or more and 5.0 mm or less, when a sample obtained by sampling the film by 300 mm in the longitudinal direction of the film production and by 210 mm in the width direction rectangular to the longitudinal direction is heat-treated at 150°C for 30 minutes. COPYRIGHT: (C)2011,JPO&INPIT
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