| 摘要 |
A laminated polyester film for a flexible display substrate is provided to obtain high visibility and gas barrier efficiency for preventing deterioration of devices by using the film with high surface smoothness and transparency. A laminated polyester film at least includes two layers of a base layer(A) which includes aromatic polyester as main components with no particles, and a coating layer(B) including particles formed in the single side. A thickness of the base layer is about 12 - 125 um. The coating layer satisfies the following formulas that are 30 nm <= average size of particles d <= 100nm, 2 <d/tB <3.0, and 4 weight % <= content of particles <= 20 weight%. The tB is the thickness of the coating layer. |
