WIDE-WIDTH CASTING BELT AND A WIDE-WIDTH FILM FOR USE IN A POLARIZING PLATE OF A LIQUID CRYSTAL DISPLAY OR AN OPTICALLY COMPENSATORY FILM, AND A MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A wide-width casting belt and a wide-width film, and a manufacturing method thereof are provided with no need of high elongation ratio of a film.;CONSTITUTION: A wide-width casting belt comprises a center belt(110), left belt(120), and right belt(130). The left belt is joined with the center belt and a left joint is formed between them. The right end of the left belt is connected to the left end of the center belt. The right belt is joined with the center belt and a right joint is formed between them. The left end of the right belt is connected to the right end of the center belt. The center belt joint, left belt joint, and right belt joint lay on the same line.;COPYRIGHT KIPO 2010