Polarizing plate and liquid crystal display employing the same

Details Polarizing plate and liquid crystal display employing the same Polarizing plate and liquid crystal display employing the same

2006-12-15

2009-10-06

Caley, Michael H (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S118000, C349S119000, C428S001300, C428S001310, C428S001330

Reexamination Certificate

active

07599028

ABSTRACT:
A polarizing plate used in a vertical alignment mode liquid crystal display comprising a liquid crystal cell is disclosed, wherein the polarizing plate comprises a polarizing film and a mixed fatty acid cellulose ester film with optical biaxiality provided between the polarizing film and the liquid crystal cell, and wherein the mixed fatty acid cellulose ester film has a retardation in plane R0 of from 31 to 120 nm, and a retardation in the thickness direction Rt of from 60 to 300 nm, in which R0 is represented by the following formula (1) and Rt is represented by the following formula (2):in-line-formulae description="In-line Formulae" end="lead"?R0=(nx−ny)×d  formula (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Rt={(nx+ny)/2−nz}×d.  formula (2)in-line-formulae description="In-line Formulae" end="tail"?

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