Color-filterless liquid crystal display device
AssigneeAu Optronics Corporation
InventorSeok-Iyul Lee
Life of this patent
Estimating the term…
Abstract
A color-fliterless liquid crystal display device includes a plurality of pixel units, each pixel unit includes a first sub-pixel and a second sub-pixel. The liquid crystal display device includes a plurality of light sources, each for emitting light having various wavelength ranges. A guide plate contains a first reflective surface and a second reflective surface for guiding light having various wavelength ranges toward the first and second sub-pixels. Accordingly, various gray levels shown by each pixel unit are combined by the two sub-pixels based on the light having various wavelength ranges
Claims26
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.
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 first light guide plate having a plurality of first 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;
- a second light guide plate having a plurality of second grooves, 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.
Dependencies are inferred from the claim text.