Liquid crystal shutter.

摘要

A liquid crystal shutter comprising a light source, a liquid crystal element including a pair of substrates (341, 342) and liquid crystal material interposed between the substrates, a pair of polarizing plates (348, 349) formed on the outer surfaces of the substrates, and a heater (361) for heating the liquid crystal element. At least one electrode is formed on the inner surface of either substrate, and an aligning orientating layer is formed on the electrode and the inner surface of the substrate. The polarizing axis of at least one of the polarizing plates extends either parallel or at right angles to the direction of the temperature gradient occurring in the liquid crystal element when the element is heated by the heater.