A method for preventing deformation of a groove tip portion existing in a brightness enhancement film

摘要

The present invention relates to a method of manufacturing a microstructure, comprising the steps of casting microstructures (22, 24, 26, 28) on a substrate (34), curing the resin forming the microstructure, and heat treating the microstructure Containing product (11). The heat treatment is performed at a temperature of at least the standard glass transition temperature of the resin. This heat treatment increases the glass transition temperature of the resulting polymer to about 333 ° K or more to reduce the groove tip indentation. Such an article is useful for a backlit display 10 used in a computer or the like.