PURPOSE: To increase the tilt bias angle by constituting a liquid crystal alignment layer of a polyphenylene polymer and constituting a large part of the polyphenylene polymer of aromatic phenylene rings.
CONSTITUTION: One surface of each transparent substrate 1, 2 is coated with a transparent electrode layer 3, 4 comprising an indium-tin compd., and further the surface is covered with a phenylene alignment layer 5, 6. The alignment layers 5, 6 and an edge plate 7 form a cell to house a liquid crystal 8. When a proper potential is applied electrodes 3, 4 for use, the liquid crystal 8 is aligned. The films of the alignment layers 5, 6 consist of a polyphenylene polymer. At least 80% of the polyphenylene polymer consists of aromatic phenylene rings. Thereby, the tilt bias angle can be increased.
ARAN NEBUAN
HERUMAN AMUSUTSUZU
YURUGEN HERINGU
ASEA BROWN BOVERI