Patent ID: 6603522
Filing Date: 2003-08-05
Classification: G02F

Abstract:
A liquid crystal shutter comprising a liquid crystal element composed of a nematic liquid crystal having a twist angle of 180Â° to 260Â° held between a pair of substrates including a first substrate and a second substrate, a pair of polarizing plates arranged with said liquid crystal element held therebetween, and an optical compensator arranged between said liquid crystal element and one of said polarizing plates,characterized in that the angle formed between the absorption axes of said pair of said polarizing plates is set in the range of 80Â° to 100Â°, the angle formed between the absorption axis of said one of the polarizing plates and the direction of the central liquid crystal molecule of said liquid crystal element is set in the range of 40Â° to 60Â°, and the delay axis of said optical compensator is arranged substantially parallel to the direction of the central liquid crystal molecule of said liquid crystal element.