| 摘要 |
PROBLEM TO BE SOLVED: To provide a white polyester film for liquid crystal display reflection panel suitable for use as a substrate for liquid crystal display reflection panel which gives brighter screen and higher reflection rate using titanium oxide. SOLUTION: This white polyester film comprises 15 to 40 wt.% of titanium oxide having an average particle size of 0.1 to 0.5μm, with 3 to 25% void rate, and is characterized in that an average reflection rate of light in the range of 400 to 700 nm wave length is 90% or more and a reflection rate of light at 390 nm wave length is 75% or more.
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