multi-layer optical film superstructures with improved properties and their application

摘要

SUPERSTRUCTURES OF OPTICAL MULTI-LAYER MOVIES WITH IMPROVED PROPERTIES AND THEIR APPLICATION. The present invention relates to an optical film construction having improved properties comprising at least one prism film and / or a diffuser film as well as a multilayer optical film, wherein the multilayer optical film has at least one film. coating with an outer layer facing the prism film and / or diffuser film from a plastics composition containing a transparent thermoplastic and, as a lubricant additive, at least one quaternary ammonium salt of a perfluoroalkyl sulfonic acid . In this case, according to the invention, the outer layer has at least a slip coefficient of friction 0.30 with respect to the prism film and / or diffuser film measured according to ASTM D 1894-06 with a roughness R3z 5 109 m (R3z according to ISO 4288). The object of the invention is furthermore a backlight unit containing the improved film construction as well as the application of the optical film construction according to the invention to liquid crystal monitor screens.