SET OF POLARIZING PLATES AND FRONT-PLATE-INTEGRATED LIQUID CRYSTAL DISPLAY PANEL

摘要

Provided is a set of polarizing plates comprising a front-plate-integrated polarizing plate to be disposed at a viewing side of a liquid crystal cell and a back-side polarizing plate to be disposed at a back side of the cell. The front-plate-integrated polarizing plate includes a front-side polarizing plate and a front plate having a Young's modulus of 2 GPa or more. The set of polarizing plates satisfies the formula: (Ra−Ft)<(Fa−Rt), where Fa and Ft represent ratios of dimensional change observed in the front-side polarizing plate in absorption and transmission axis directions, respectively, after the front-side polarizing plate is heated at 85° C. for 100 hours, and Ra and Rt represent ratios of dimensional change observed in the back-side polarizing plate in absorption and transmission axis directions, respectively, after the back-side polarizing plate is heated at 85° C. for 100 hours.

主权项

1. A set of polarizing plates comprising a front-plate-integrated polarizing plate to be disposed at a viewing side of a liquid crystal cell, and a back-side polarizing plate to be disposed at a back side of the liquid crystal cell, the front-plate-integrated polarizing plate including a front-side polarizing plate and a front plate, the front plate being disposed at a viewing side of the front-side polarizing plate and having a Young's modulus equal to or greater than 2 GPa,
the set of polarizing plates satisfying the following formula:
(Ra−Ft)<(Fa−Rt)   [I], where Fa represents a ratio of dimensional change observed in the front-side polarizing plate in an absorption axis direction after the front-side polarizing plate is heated at 85° C. for 100 hours and Ft represents a ratio of dimensional change observed in the front-side polarizing plate in a transmission axis direction after the front-side polarizing plate is heated at 85° C. for 100 hours, and Ra represents a ratio of dimensional change observed in the back-side polarizing plate in an absorption axis direction after the back-side polarizing plate is heated at 85° C. for 100 hours and Rt represents a ratio of dimensional change observed in the back-side polarizing plate in a transmission axis direction after the back-side polarizing plate is heated at 85° C. for 100 hours.