| abstract |
The present invention relates to a white polyester film for a liquid crystal reflector excellent in burr generation and dust adhesion prevention during punching, handling in a single wafer, and oligomer precipitation prevention, and a surface light source using the same. Is to provide. A white polyester film for a liquid crystal reflector according to the present invention and a surface light source using the same have an antistatic layer containing polystyrene sulfonic acid and / or a polystyrene sulfonic acid derivative, and the surface of the surface of the antistatic layer. Antistatic after heat treatment at 180 ° C. for 30 minutes with specific resistance of 1 × 10 13 Ω / □ or less, reflectance of light of wavelength 560 nm on the surface is 95% or more, total light transmittance is 10% or less The oligomer amount on the layer side surface is 3.0 mg / m 2 or less. [Selection figure] None |