| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a laminated film capable of uniformly surface emitting a light in a high accuracy and being stably manufactured for a long period. SOLUTION: Transparent resin layers 12 and 13 are laminated on at least one surface (particularly both surfaces) of an anisotropic light scattering layer 11. The scattering layer 11 has a continuous phase and a particle-like dispersed phase 14 having different refractive indexes from each other, a mean aspect ratio of the phase 14 is larger than 1 and a major axis of the dispersed phase is oriented in one direction. The laminated film 10 can diffuse an incident light in a light traveling direction and may satisfy the formula of Fy(θ)/Fx(θ)>5, wherein Fx(θ) is light scattering characteristics of a major axis direction of the dispersed phase and Fy(θ) is light scattering characteristics of a direction perpendicular to the major axis direction of the dispersed phase and in the range of, for example,θ=4 to 30 deg..</p> |
