Patent ID: 6943857
Filing Date: 2005-09-13
Classification: G02B

Abstract:
1. A liquid crystal display device comprising: a liquid crystal display panel having one and another main surfaces; a light guide plate having a first main surface facing the one main surface of the liquid crystal display panel and a second main surface on which an optical reflection pattern is formed to be distributed two-dimensionally; and linear light sources being disposed along respective side edges of the first or second main surfaces of the light guide plate being opposite to one another, wherein brightness of each of the linear light sources increases one-dimensionally and gradually from one least bright end of the linear light source toward one brightest end thereof, the respective least bright ends of the linear light sources are arranged on a diagonal of the first or second main surface of the light guide plate, and wherein a distribution density of the optical reflection pattern provided two-dimensionally for the light guide plate is heightened gradually from a center of the second main surface of the light guide plate along the diagonal in accordance with a combinational effect of the one-dimensional gradual decreases of the brightness of the linear light sources.