Patent ID: 8547490

Claim:
A three-dimensional imaging device, comprising: a display device comprising: a first substrate; a second substrate paralleled to the first substrate; a black absorbing layer disposed on the second substrate; a cholesteric liquid crystal layer disposed between the black absorbing layer and the first substrate, wherein the cholesteric liquid crystal layer includes a first levo-cholesteric liquid crystal layer and a first dextro-cholesteric liquid crystal layer to display a first image and a second image respectively, and the first levo-cholesteric liquid crystal layer and the first dextro-cholesteric liquid crystal layer are disposed at a same plane; and a viewing device comprising: a second levo-cholesteric liquid crystal layer and a second dextro-cholesteric liquid crystal layer enabling light of the first image and the second image to respectively pass through the second levo-cholesteric liquid crystal layer and the second-dextro cholesteric liquid crystal layer and then to reach a viewer's eyes, wherein the first levo-cholesteric liquid crystal layer is made of a same material as the second levo-cholesteric liquid crystal layer, and the first dextro-cholesteric liquid crystal layer is made of a same material as the second dextro-cholesteric liquid crystal layer.