Patent ID: 6600538
Filing Date: 2003-07-29
Classification: G02F

Abstract:
A liquid crystal display including a display portion formed of a transmission-type liquid crystal panel having a viewing surface side, said liquid crystal display comprising a nematic liquid crystal layer having a horizontal arrangement and positive anisotropy of dielectric constant, a pair of transparent substrates, each having an inner surface equipped with transparent electrodes and an outer surface, disposed such that said liquid crystal layer is sandwiched between said inner surfaces of said substrates, a pair of polarized plates arranged in cross-Nicol and having absorption axes respectively oriented differently from the direction of liquid crystal orientation, and a first retardation plate positioned so that its slow-phase axis direction is substantially orthogonal to the direction of liquid crystal orientation, said first retardation plate compensating for the birefringence of said liquid crystal layer parallel to said substrate surfaces generated when a voltage equal to or more than 8 V has been impressed on said liquid crystal panel:wherein when no voltage is impressed said liquid crystal layer has a retardation set larger than the Â½ wavelength condition, white-display voltage is set 1V or more higher than the response voltage value of the liquid crystal, and the retardation of the liquid crystal is set to a range of 200 nm-250 nm, wherein said liquid crystal layer includes two kinds of orientation regions, each region having a direction of liquid crystal orientation at an angle of approximately 180 degrees to the direction of liquid crystal orientation of the other region, and wherein said display is further equipped with a lens sheet mounted to the viewing surface side of said liquid crystal panel for either scattering or refracting wider than its incident angle a light ray being stretched in the direction substantially parallel to the direction of liquid crystal orientation.