BRIGHTNESS ENHANCEMENT FILM

摘要

PURPOSE: A brightness enhancement film is provided to improve a brightness enhancement effect by including a birefringent sea island fiber in the structure of the film. CONSTITUTION: A brightness enhancement film comprises a base member and a birefringent sea island fiber. The birefringent sea island fiber is a polycarbonate alloy. An island part of the birefringent sea island fiber is a poly ethylene naphthalate(PEN). The see part of the birefringent sea island fiber is formed with a polycarbonate and degenerated glycol polycyclohexylenedimethylene terephthalate(PCTG). The birefringent sea island fiber is formed inside the base member.