POLARIZING PLATE, METHOD FOR MANUFACTURING POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

The polarizing plate has a high contrast and little image inconsistency (corner inconsistency) as well as curl stability and durability under a high-temperature and high-humidity environment. The polarizing plate is a laminate of a substrate with a hard coat layer and a polarizer. The polarizer is formed by applying a stretching process after laminating a hydrophilic polymer layer on which a dichroic material is absorded, onto a thermoplastic resin layer by a coating technique. The thickness of the hydrophilic polymer layer is within the range of 0.5 to 10 μm and the thickness of the hard coat layer is within the range of 1.0 to 5.0 μm. The substrate having the hard coat layer satisfies a condition prescribed by the following formula (1): Formula (1): 3

主权项

1. A polarizing plate comprising a laminate of a substrate which has a hard coat layer formed by an application process and a polarizer which includes a hydrophilic polymer layer on which a dichroic substance is adsorbed, wherein
the polarizer is formed by applying the hydrophilic polymer layer onto a thermoplastic resin layer and stretching the layers, the stretched hydrophilic polymer layer has a thickness in range of 0.5 to 10 μm, the hard coat layer has a thickness in range of 1.0 to 5.0 μm, and the substrate having the hard coat layer satisfies a condition defined by Expression (1):
3