Stereo display device and method manufacturing the same

A method for manufacturing a stereo display device, comprising:

• providing a liquid crystal display unit including a first polarizer, a first substrate, a second substrate and a liquid crystal layer arranged between the two substrates, the first polarizer being arranged on a surface of the first substrate away from the liquid crystal layer;
• arranging a flat layer on a surface of the first polarizer away from the first substrate, with the flat layer directly contacting the surface of the first polarizer away from the first substrate without adhesive between the flat layer and the surface of the first polarizer away from the first substrate, after providing the liquid crystal display unit;
• forming a second electrode on a surface of the flat layer away from the first substrate, with the second electrode directly contacting the flat layer, after arranging the flat layer on the surface of the first polarizer away from the first substrate;
• providing a third substrate, after forming the second electrode on the surface of the flat layer away from the first substrate;
• arranging gate lines, a protective layer, a first electrode and a spacer sequentially on a surface of the third substrate, after providing the third substrate;
• mounting, on the second electrode, the surface of the third substrate on which the spacer is arranged, after arranging the spacer on the surface of the third substrate;
• and
• arranging a quarter-wave plate on the other surface of the third substrate.