Back light unit
AssigneeChi Mei Optoelectronics Corp.
InventorChung-Kuang Wei
Life of this patent
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Abstract
A backlight unit is disposed beneath a display panel. The backlight unit includes an illumination means, which is used to provide a light source, and a diffuser positioned between the illumination means and the display panel, which is used to scatter the light generated by the illumination means. The diffuser, which is composed of liquid crystal particles and polymer, has a plurality of regions.The region thatis closer to the illumination means has greater scattering effect. In addition, the region with the greatest scattering effect has a shape corresponding to the illumination means.
Claims13
A back light unit disposed under a display panel, the back light unit comprising:
- a luminous means as a light source for providing light beams;
- and
- a diffuser interposed between the luminous means and the display panel for diffusing the light beams to the display panel, wherein the diffuser is composed of liquid crystal molecules and polymers and comprises a plurality of regions with different diffusion effects;
- wherein a region with greater diffusion effect is closer to the luminous means.
A diffuser adapted for a back light unit, the diffuser composed of liquid crystal molecules and polymers, the diffuser comprising a plurality of regions with different diffusion effects formed by different sizes of liquid crystal droplets.
Dependencies are inferred from the claim text.