Electrically tunable liquid crystal lens and composite electrically tunable liquid crystal lens including the same

An electrically tunable liquid crystal lens, comprising:

• a carrier substrate that is light-transmissible;
• a common electrode layer disposed on said carrier substrate;
• a liquid crystal unit disposed on said common electrode layer opposite to said carrier substrate, and including a plurality of liquid crystal molecules;
• a patterned electrode layer disposed on said liquid crystal unit opposite to said common electrode layer, and having a plurality of aperture patterns, said aperture patterns being located within a projection of said liquid crystal unit on said patterned electrode layer;
• a terminal electrode layer disposed on said patterned electrode layer opposite to said liquid crystal unit;
• a dielectric insulating layer disposed between said patterned electrode layer and said terminal electrode layer to electrically isolate said patterned electrode layer and said terminal electrode layer from each other;
• a cover disposed on said terminal electrode layer opposite to said dielectric insulating layer, said cover being light-transmissible,
• wherein said aperture patterns are spaced apart from each other, and
• wherein said aperture patterns at different regions are formed with different sizes or different shapes to thereby allow the different regions to have different diopters.