Polyamide-imide-based film, preparation method thereof, and cover window and display device comprising the same

Abstract

This embodiment aims to provide a polyamide-imidene film comprising a polyamide-imidene polymer, wherein the haze variation (ΔHzM) of the polyamide-imidene film is 1% or less, thereby exhibiting excellent optical properties, mechanical properties and solvent resistance; a process for preparing the film; and a cover window and display device comprising the film. The embodiments aim to provide a polyamide-imide-based film, which comprises a polyamide-imide-based polymer, wherein the amount of change in haze (ΔHzM) of the polyamide-imide-based film is 1% or less, whereby it is excellent in optical properties, mechanical properties, and solvent resistance; a process for preparing the same; and a cover window and a display device comprising the same.

Images