| 摘要 |
<p>PURPOSE:To increase the pretilt angle of liquid crystal molecules and to improve surface uniformity and contrast by disposing a substrate having a resin layer at a desired angle in the field of parallel magnetic lines of force, exposing ferromagnetic material powder to this field, accelerating and moving particles so as to collide against the surface of the resin layer and removing the magnetic material powder. CONSTITUTION:A polyimide resin and a polyamic resin which are adjusted in viscosity by using a solvent are respectively spin-coated on a glass substrate and are heat-treated at a prescribed temp. The substrate on which a magnetic layer 4 is deposited is then inclined and disposed to the bottom end of a coil 2 by using a device consisting of a copper coil 1 and a DC power source 5 and magnetic powder is dropped from the upper part of the coil 1 toward the coil 1. After the particles of the magnetic powder are brought into collision against the resin layer 4 in such a manner, two sheets of the substrates subjected to the collision are used and the resin layers 4 are disposed to face each other via a prescribed gap. The nematic liquid crystal is packed into this gap. The pretilt angle of the liquid crystal molecules is increased by the magnetic field if the oriented film is formed in such a manner and, therefore the display characteristics of the liquid crystal are improved.</p> |
