Patent ID: 7768608
Filing Date: 2010-08-03
Classification: G02F

Abstract:
1. A liquid crystal display device comprising, at least, a first polarizing film, a first retardation region, a second retardation region, a liquid crystal cell comprising a liquid crystal layer and a pair of substrates sandwiching the liquid crystal layer with liquid crystal molecules of the liquid crystal layer being aligned in parallel to the surfaces of the pair of substrates in a black state, and a second polarizing film in this order disposed therein, wherein an in-plane retardation (Re) of the first retardation region is from 70 nm to 330 nm; a value of Nz of the first retardation region, as defined by [Nz=Rth/Re+0.5] where “Rth” is a retardation in the thickness direction of the first retardation region and “Re” is an in-plane retardation of the first retardation region, exceeds 0 and is less than 0.5; an in-plane retardation (Re) of the second retardation region is not greater than 50 nm, any optical axis is not included in a plane of the second retardation region and a retardation (Rth) in the thickness direction of the second retardation region is from 10 nm to 140 nm; a slow axis of the first retardation region is perpendicular to a transmission axis of the first polarizing film; and the transmission axis of the first polarizing film is parallel to the slow axis direction of the liquid crystal molecules of the liquid crystal layer in a black state.