<p>Provided is a coating film having superior transparency, favorable sliding characteristics, and having favorable visibility after various types of surface functional layer such as a hard coating layer have been formed. The coating film has a first coating layer formed by applying a coating liquid containing particles onto at least one surface of an unstretched polyester film and then stretching in at least one direction, and has a second coating layer that is formed by applying a coating liquid onto the first coating layer and/or the surface at the reverse side from the first coating layer, and that has an absolute reflectance having a minimum value in the wavelength range of 400-800 nm and an absolute reflectance at the minimum value of at least 4.0%.</p>
