| abstract |
The embodiment of the present invention relates to a polyester film and an organic light-emitting display device using the polyester film. The polyester film includes: a substrate layer containing a polyester resin; and a coating layer provided on the substrate layer , And containing dichroic dyes, the polyester film has a polarization degree of more than 50% in the wavelength range of 380 nm to 780 nm, a light transmittance of more than 40%, and has excellent optical properties, durability, and heat resistance Sexuality and color performance. |