| 摘要 |
PURPOSE:To improve the orientability of a liquid crystal material and to obtain a high contrast ratio as the device by specifying the angle formed by the major axis of the liquid crystal molecules of the liquid crystal material and a substrate plane. CONSTITUTION:The film of ITO(indium tin oxide) is formed by a sputtering method on a blue sheet glass and is patterned to plural band shapes by photolithography, by which transparent electrodes are formed. Two sheets of such substrates are produced. An oriented film is formed of a polyimide resin or polyvinyl alcohol, etc., on the surface of the one substrate formed with the electrodes and is subjected to rubbing. The selection of the oriented film material and rubbing treatment are so executed that the angle formed by the major axis of the liquid crystal molecules and the substrate, i.e., pretilt angle, attains 2 to 8 deg.. Silica spacers are sprayed on the substrate on the side formed with the oriented film and the other substrate is screen printed with a two-pack type epoxy adhesive as a sealing agent on its periphery. Both substrates are stuck to each other to complete a liquid crystal cell. |
