| 摘要 |
[Problem] To provide a backlight which has excellent luminance characteristics and goes along very well with other components at a low cost by using a white reflective film that has excellent economic efficiency, film formability, whiteness, reflectivity, lightweightness and surface profile. [Solution] A white reflective film for edge-lit backlights, which satisfies the following conditions (i)-(iii). (i) The white reflective film is a multilayer film composed of two or more layers including at least a surface layer (A) and a base layer (B) that contains air bubbles. (ii) The surface of the surface layer (A) has a center plane average roughness (SRa) of 90 nm or more but less than 300 nm. (iii) The surface layer (A) has a domain composed of a polymer that is different from the polymer that constitutes the matrix. |
