Display device capable of switching between a two-dimensional displaying mode and three-dimensional displaying mode

A display device capable of switching between a two-dimensional displaying mode and three-dimensional displaying mode, comprising a plurality of lens units, wherein each lens unit comprises:

• a first substrate;
• a second substrate opposite to the first substrate;
• a liquid crystal layer disposed between the first substrate and the second substrate;
• an insulating layer disposed on the first substrate;
• a first electrode disposed overlying the first substrate, wherein the first electrode comprises a first portion neighboring a first side of the lens unit and a second portion neighboring a second side of the lens unit;
• a first floating electrode isolated from the first electrode by the insulating layer, wherein the first floating electrode comprises a first portion and a second portion, wherein the first portion of the first floating electrode is partially overlapped with the first portion of the first electrode, and the second portion of the first floating electrode is partially overlapped with the second portion of the first electrode;
• and
• a second electrode disposed on the second substrate.