Patent ID: 6055096
Filing Date: 2000-04-25
Classification: G02B

Abstract:
A protective film of a polarizing plate, the protective film comprising a resin film consisting of one layer containing an ultraviolet (UV) absorbent, wherein the resin film has a change in linear dimensions of -0.06 to 0.06%, and the protective film has a retardation of no more than 30 nm, the chance in linear dimensions being obtained by the following:two points are marked on the resin film; thereafter the resin film is heat treated to 90.degree. C. for 60 hours and then allowed to stand at 23.degree. C. for 24 hours; the distance between the two points before and after the heat treatment is measured at 23.degree. C. and 55% RH; the chance in linear dimensions is calculated by the following formula:(the distance after the heat treatment)-(the distance before the heat treatment).times.100/(the distance before the heat treatment).