Patent ID: 8570448

Claim:
A liquid crystal shutter, comprising: a first liquid crystal panel including a pair of electrode substrates and a liquid crystal layer held between the electrode substrates and covering a left eye sight, the first liquid crystal panel being switched between a transmissive state to pass incident light to left eye and a non-transmissive state to shut the incident light to the left eye; a second liquid crystal panel including a pair of electrode substrates and a liquid crystal layer held between the electrode substrates and covering a right eye sight, the second liquid crystal panel being switched between the transmissive state to pass incident light to the right eye and the non-transmissive state to shut the incident light to the right eye; and a driving circuit to switch the first and second liquid crystal panels between the transmissive state and the non-transmissive state by applying a voltage to the first and second liquid crystal panels by turns, wherein the driving circuit carries out a polarity inversion to invert the polarity of the voltage applied between the pair of the electrode substrates at least once during a period in the transmissive state.