Liquid crystal grating module and two dimension-three dimension switchable liquid crystal display device using the same

A two dimension-three dimension switchable liquid crystal display device, comprising a liquid crystal display and a liquid crystal grating module arranged on the liquid crystal display;

• wherein the liquid crystal grating module comprises a first transparent electrode layer and a second transparent electrode layer, which are provided with interval;
• the liquid crystal grating module further comprises
• a liquid crystal layer between the first transparent electrode layer and the second transparent electrode layer;
• a first alignment film formed on the first transparent electrode layer;
• and
• a second alignment film formed on the second transparent electrode layer;
• wherein the first alignment film is sandwiched between the first transparent electrode layer and the liquid crystal layer, and the second alignment film is sandwiched between the second transparent electrode layer and the liquid crystal layer;
• the first transparent electrode layer comprises a plurality of lateral electrode bars, and the second transparent layer comprises a plurality of vertical electrode bars;
• the lateral electrode bars and the vertical electrode bars are alternately superposed on each other with interval to form grating structure, and the vertical electrode bars have three different widths in a direction vertical to liquid crystal display pixels.