| 摘要 |
PURPOSE:To orientate the electric field of the high polymer liquid crystal which has a low dielectric breakdown voltage by coating at least one of pole of the electrode with an insulating layer. CONSTITUTION:The insulating layer 5 is provided at both poles of the electrode 2, but the sufficient effect is obtd. even in case that the insulating layer 5 is provided on at least one of the electrodes. Any one of an org. and an inorg. substances can be used as the material of the insulating layer 5, and is exemplified by a high polymer material such as polyimide, teflon and polyester etc., or an inorg. material such as quartz and mica, etc., or a mixture thereof, and is preferably, used the material having high withstand voltage. In case that the transition temp. of the liquid crystal is a high temp. of >=100 deg.C, a heat-resisting material is preferably used for the insulating layer. The thickness of the insulating layer is not especially specified, but, the thinner layer is preferably used to increase the electric field strength which applies to a sample. Thus, even in case that the high polymer liquid crystal having a smaller dielectric breakdown voltage than the orientation voltage, is used, the electric field sufficient to orientate the high polymer liquid crystal can be supplied to the titled element. |
