Patent ID: 6480248
Filing Date: 2002-11-12
Classification: G02F

Abstract:
A method of illuminating a liquid crystal layer, the method comprising:generating a light including a first light passing through a first polarizing axis and a second light passing through a second polarizing axis; changing a polarization of the second light such that the second light passes through the first polarizing axis; passing the first light and the changed second light through a third polarizing axis, the third polarizing axis allowing a brightness pattern repeated in a range of a first value and a second value depending on an angle between the third polarizing axis and the first polarizing axis, the first value being greater than the second value; controlling the angle between the third polarizing axis and the first polarizing axis such that the first light and the changed second light are transmitted as a third light having a brightness of a desired value equal to or greater than the second value and equal to or less than the first value; and providing the third light to a liquid crystal layer.