Polarizing plate having an improved reliable property and high degree of polarization at high temperature/humidity condition and method for preparing the same

摘要

The invention as a hayeoseo held between the polarizing plate protective film A and B, which sandwich the polarizing film the polarizing plate, which is represented by the low molecular weight asymmetric ester-based compound and formula (2) containing an aromatic of the formula 1 below is the polarizing plate protective film B polarization at high temperature and high humidity has a degree of polarization in the range more than 99.9500% of the polarizing plate by containing the low molecular symmetric ester compounds containing an aromatic FIG cellulose-based polarizing plate having excellent reliability and to provide a production method thereof. Formula 1 T + [D] n [Formula 2] T + [D] n + T Here, T is a toluic acid (Toluic acid) moiety or a benzene carboxylic acid residue, D is a carbon number of 2 to 8, the propylene glycol (Propyleneglycol), neopentyl glycol (Neopentylglycol), diethylene glycol (Diethyleneglycol), dipropylene glycol (Dipropyleneglycol ), triethylene glycol (triethyleneglycol), an aryl glycol residue having 2 alkylene glycol residue of 1 to 12, having 6 to 12 carbon atoms, or carbon atoms, represents a 4 to 12 oxyalkylene glycol residue, n represents an integer of 1 or more .;