Characteristics of Amorphous TN-LCD Prepared by New Method

Abstract

Amorphous twisted nematic-liquid-crystal display(a-TN-LCD) has excellent viewing angle characteristics and is fabricated by non-rubbing method. In this LCD, it is necessary to be injected LC molecules into the cell in the isotropic phase in order to avoid the flow alignment. However, this injection method has various problems in the preparing process, then, it is desired to obtain the amorphous orientation by using the conventional injection method that is done at the room temperature. We found that the a-TN-LCD can be prepared by annealing at the high temperature which makes remove the memory effect. In addition, we will report the relation between the preparing conditions and LC molecular orientation, and electrooptical characteristics.