Patent ID: 7432999

Claim:
A liquid crystal display comprising: a liquid crystal display panel; and a surface light source device for inputting light to the liquid crystal display panel, said liquid crystal display panel being provided with at least a liquid crystal cell and a polarization plate arranged at an input side of the liquid crystal cell, said surface light source device being provided with at least a light guide plate emitting light having a polarization state, a primary light source to supply illumination light to said light guide plate and a light control sheet interposed between said light guide plate and said polarization plate, wherein said light control sheet is made of a particular portion of a resin material produced through a resin material drawing process and is provided with an ability acquired through the resin material drawing process and a cutting-out process for choosing the particular portion such that a maximum-intensity-direction of polarization of the light emitted from said light guide plate is rotated around a traveling direction of the light toward a direction of a light transmission axis of said polarization plate by transmitting through the light control sheet.