Patent ID: 7548289
Filing Date: 2009-06-16
Classification: G02F

Abstract:
1. A liquid crystal display device comprising: a liquid crystal display cell including liquid crystal between two substrates facing to each other; a polarizing element provided on each side of the liquid crystal display cell; and at least one film member provided in at least either one area of areas between the liquid crystal display cell and the polarizing element, the polarizing element being formed from a film made of polyvinylalcohol resin in which iodine or dichromatic dye is absorbed and oriented, the film member being attached to the polarizing element with a cohesive layer and/or an adhesive layer having a thickness of less than 10 μm therebetween, and when attached to another film member, the film member being attached to the another film member with a cohesive layer and/or an adhesive layer having a thickness of less than 10 μm therebetween, the film member provided in at least either one area of areas between the liquid crystal display cell and the polarizing element having an absolute value of a photoelastic coefficient of less than 10×10 wherein the liuid crystal display device satisfies a relationship of CR (Φ, 60)/CR (0)≧0.025 at all azimuthal angles of Φ=0 to 360° when a contrast ratio of the liquid crystal display cell in a normal direction of the substrate on the observation side as defined as CR (0), a contrast ratio of the liquid crystal display cell in a direction inclined by 60° from the normal direction in an azimuthal angle Φ direction is defined as CR (Φ, 60).