OPTICAL SHUTTER FOR INFORMATION OUTPUT DEVICE

摘要

PURPOSE:To provide the optical shutter which is low in cost and has a good resolution by forming individual electrodes which have a square shape in such a manner that the lengths of the 1st side and 2nd side of a pair of the side facing each other are approximately equal and that the respective bisectors of the 1st and 2nd sides are not the same. CONSTITUTION:There are plural pieces of the electrodes 1 on the 1st substrate constituting the liquid crystal cell. The respective electrodes are formed without contact with each other and the individual electrodes 2 on the 2nd substrate constituting the liquid crystal cell have the square shape. These electrodes are so constituted that the lengths of the 1st side and 2nd side of a pair of the side facing each other are approximately equal and that the respective bisectors of the 1st and 2nd sides are not the same. An excimer laser beam is used as a method for obtaining such constitution. The electrodes 1, 2 on the 1st substrate and/or the 2nd substrate are processed to the desired shapes by the laser beam processing method. Particularly the plural electrodes on the 2nd substrate have the square shape and are so processed by the laser that the lengths of the 1st side and 2nd side of a pair of the side facing each other are approximately equal and that the respective bisectors of the 1st and 2nd sides are not the same.