Patent ID: 6317177
Filing Date: 2001-11-13
Classification: G02B,G02F

Abstract:
A liquid crystal display device including an edge light type back light unit in which light emitted from a linear light source is condensed at an end portion of a light conduction plate, then conducted and reflected, and a reflected light ejected from the light conduction plate is transmitted through a light diffusion plate to form a planar light source with a first uniform luminance indirectly irradiating a first central portion of a liquid crystal panel from a rear side thereof,wherein a reflecting plate having a curved surface is disposed in a vicinity of the linear light source, and a light shielding plate is disposed so that part of the light emitted from the linear light source and reflected by the reflecting plate is condensed at the end portion of the light conduction plate, and another part of the light emitted from the linear light source and reflected by the reflecting plate irradiates a second peripheral portion of the liquid crystal panel from the rear side thereof with a second luminance higher than the first uniform luminance.