Patent ID: 7583332
Filing Date: 2009-09-01
Classification: G02F

Abstract:
1. A liquid crystal display device comprising: a plurality of pixel units comprising a first sub-pixel unit and a second sub-pixel unit; a first light source for generating light having a first wavelength range; a second light source for generating light having a second wavelength range; a third light source for generating light having a third wavelength range; a fourth light source for generating light having a fourth wavelength range; a light guide plate having a plurality of first grooves and a plurality of second grooves, each first groove comprising a first reflective surface for guiding the light having the first wavelength range and the light having the third wavelength range, and each second groove comprising a second reflective surface for guiding the light having the second wavelength range and the light having the fourth wavelength range; and a plurality of condensing lenses disposed between the light guide plate and the Plurality of pixel units, each condensing lens is adapted for condensing the light having the first wavelength range and the light having the third wavelength range on the first sub-pixel, and is adapted for condensing the light having the second wavelength range and the light having the fourth wavelength range on the second sub-pixel.