FLEXIBLE DISPLAY SUBSTRATE

摘要

PURPOSE: A flexible display substrate is provided to improve light transmittance, surface hardness, and moisture permeability by increasing the surface adhesion of the transparent polyimide film and the hardcoating layer. CONSTITUTION: A flexible display substrate comprises a transparent polyimide film, a hardcoating layer, and an organic layer. The hardcoating layer is formed on one side of the polyimide film. The organic layer comprises the upper side of the hardcoating layer and comprises a urethane-based polymer and an acryl-based polymer. The hardcoating layer comprises one or more kinds selected from polysilazane-based, acryl-based and polyurethane-based.