| 摘要 |
PROBLEM TO BE SOLVED: To obtain an orientation method which obviates the degradation in the a display grade by generation of dust without executing rubbing by irradiating at least one substrate of the substrates of a liquid crystal display device formed by holding liquid crystals between two sheets of the substrates with magnetized plasma. SOLUTION: The substrates for the liquid crystal display device or the org. high-polymer films formed on the substrates are subjected to plasma treatments in vacuum, by which the substrates or the films are oriented. The members to be treated are put into a specific plasma chamber and after a dilute gas is introduced into this chamber, the gas is made into plasma and a magnetic field is applied thereon from outside. The plasma is otherwise formed by an electric discharge in the magnetic field, by which the highdensity plasma is obtd. as the charge particles execute cyclotron motion. The surfaces of the objects to be treated are irradiated with such plasma, by which the surface shapes, the arrangement of the molecular chains, etc., are changed and the orientation control of the liquid crystal molecules is executed. The orientation of the liquid crystals is made possible by deviating the angle of the irradiation of the substrate surfaces with the plasma from a perpendicular direction to some extent in the irradiation with the magnetized plasma. The changing of the orientation state in the certain specific region is possible as well. |
