Liquid crystal shutter eyeglass

A liquid crystal shutter eyeglass, comprising:

• a liquid crystal shutter comprising a light transmitting and shading region in which a change can occur in the state of the liquid crystal shutter between a light transmitting state in which light is caused to be transmitted and a light shading state in which light is caused to be shaded;
• a driving section configured to change the state between said light transmitting state and said light shading state of a driving region that is at least part of said light transmitting and shading region;
• and
• a controlling section configured to adjust a size of said driving region;
• a receiver configured to receive a synchronization signal that represents a timing at which the state between said light transmitting state and said light shading state changes;
• and
• an accepting section configured to receive position information that represents relative positions of said liquid crystal shutter eyeglass and of a predetermined display device;
• wherein, said driving section is further configured to change the state between said light transmitting state and said light shading state based on the synchronization signal that said receiver has received, and
• said controlling section is further configured to decrease both a length and a width of the driving region in proportion to the distance between said liquid crystal shutter and said display device based on the position information which is received by said accepting section.