Patent ID: 6693693
Filing Date: 2004-02-17
Classification: G02F

Abstract:
A liquid crystal display device utilizing an OCB mode, comprising:a polarizer and an analyzer with respective polarization axes intersecting each other at right angles; two substrates located between said polarizer and analyzer; a liquid crystal layer sandwiched between said substrates, wherein liquid crystal molecules are bend-aligned; a first uniaxial phase plate having negative optical anisotropy and having an optical axis direction perpendicular to said substrate, said first uniaxial phase plate located between said polarizer or analyzer and the nearer of said two substratates; a second uniaxial phase plate having positive optical anisotropy with an optical axis direction perpendicular to the direction of orthogonal projection of the optical axes of said liquid crystal molecules onto said substrate, said second uniaxial phase plate located between said polarizer or analyzer and the nearer of said two substrates; and an additional uniaxial phase plate having positive optical anisotropy with an optical axis direction not perpendicular to the direction of orthogonal projection of the optical axes of said liquid crystal molecules onto said substrate, said additional uniaxial phase plate located between said polarizer or analyzer and the nearer of said two substrates.