Patent ID: 7796200

Claim:
A switchable two dimensional/three dimensional (2D/3D) display, comprising: a liquid crystal display panel, comprising: a first substrate and a second substrate opposite to the first substrate; a first twisted nematic liquid crystal layer, disposed between the first substrate and the second substrate; a first wide-view film set, comprising a first wide-view film and a second wide-view film, the first wide-view film being disposed on an outer surface of the first substrate, the second wide-view film being disposed on an outer surface of the second substrate; a first polarizer set, comprising a first polarizer and a second polarizer, the first polarizer set being disposed on the first wide-view film set, such that the first wide-view film is disposed between the first polarizer and the first substrate, and the second wide-view film is disposed between the second polarizer and the second substrate, a transmission axis of the first polarizer and a transmission axis of the second polarizer being substantially perpendicular to each other; a switchable barrier, comprising: a third substrate and a fourth substrate opposite to the third substrate; a second twisted nematic liquid crystal layer, disposed between the third substrate and the fourth substrate, wherein the second twisted nematic liquid crystal layer and the first twisted nematic liquid crystal layer have opposite chiralities; a second wide-view film set, comprising a third wide-view film and a fourth wide-view film, the third wide-view film being disposed on an outer surface of the third substrate, the fourth wide-view film being disposed on an outer surface of the fourth substrate; and a second polarizer set, comprising a third polarizer and a fourth polarizer, the second polarizer set being disposed on the second wide-view film set, such that the third wide-view film is disposed between the third polarizer and the third substrate, and the fourth wide-view film is disposed between the fourth polarizer and the fourth substrate, a transmission axis of the third polarizer and a transmission axis of the fourth polarizer being substantially perpendicular to each other.