Patent ID: 8502930

Claim:
An electrically-driven liquid crystal lens comprising: a first substrate and a second substrate arranged opposite each other and each including a plurality of lens regions and a light shade provided at a boundary of each lens region; a plurality of first electrodes formed in a given direction on the first substrate in each lens region; a second electrode formed on one surface of the second substrate and having an aperture corresponding to the light shade; first and second light shade switching electrodes formed at opposite ends of the light shade and extending parallel to the first electrodes; a liquid crystal layer filled between the first substrate and the second substrate; a first voltage source to create a vertical electric field between the plurality of first electrodes and the second electrode; a second voltage source to create a horizontal electric filed between the first and second light shade switching electrodes; and a polarizer plate formed on the other surface of the second substrate and having a first transmission axis, wherein liquid crystals in the light shade are aligned to follow a direction crossing the first transmission axis when the second voltage source applies different voltages to the first and second light shade switching electrodes.