Patent ID: 7852441
Filing Date: 2010-12-14
Classification: G02B,G02F

Abstract:
1. A liquid crystal panel, comprising at least: a liquid crystal cell having opposing sides comprising a liquid crystal layer containing a liquid crystal molecule that is oriented in homogeneous alignment with no electric field applied thereto; a first polarizer placed on one side of the liquid crystal cell; a first optical element placed directly between the liquid crystal cell and the first polarizer with no other optical element between the liquid crystal cell and the first polarizer; and a second polarizer placed on the other side of the liquid crystal cell with no optical element placed between the liquid crystal cell and the second polarizer, wherein the first optical element is substantially optically isotropic, the liquid crystal cell has an initial alignment direction that is substantially parallel to the absorption axis of the first polarizer, and the absorption axis of the first polarizer is substantially perpendicular to the absorption axis of the second polarizer; wherein the first optical element satisfies the formulae: wherein Re[590] and Rth[590] are an in-plane retardation and a thickness direction retardation, respectively, which are determined at 23° C. with respect to light having a wavelength of 590 nm.