| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a high performance polarizing plate at a low cost with a simple method by improving the yield in the polarizing plate punching process. SOLUTION: In the polarizing plate comprising a polarizing layer held between two transparent substrates, the polarizing plate has a polarizing layer comprising a polyvinyl alcohol type film 10-80 deg. obliquely stretched to which a polarizing element is adsorbed with alignment. Simultaneously, in the polarizing plate, at least one out of the transparent substrates satisfies the following inequalities at both of 380 and 780 nm wavelengths. Inequality 1 -10<=(nx-ny)×d<=10 (d: thickness of the transparent substrate) Inequality 2 0<= (nx+ny)/2-nz)×d<=20 (d: thickness of the transparent substrate) In the inequalities 1, 2, n expresses the refractive index, x expresses the MD direction of the transparent substrate, y expresses its TD direction, and z expresses its thickness direction. |
