| 摘要 |
PURPOSE:To improve thermal responsiveness, more paticularly a cooling speed, to improve high speed responsiveness and to enable partial rewriting with a simple means by constituting a substrate on one side of a liquid crystal display cell with alumina ceramics, and utilizing the heat and electric field effect of the smectic liquid crystal. CONSTITUTION:The liquid crystal side of a sintered alumina substrate 401 is polished to a specular surface, whereafter an Al layer is vapor deposited thereon and is etched to provide striped Row electrodes 402. On the other hand, transparent column electrodes are provided on a counter transparent glass substrate 403, and a smectic liquid crystal 406 is sealed between both substrates 401 and 403. Since the substrate 401 is thin and has good heat conduction, the cooling of the liquid crystal 401 is effected quickly, and since the writing and erasing speed of the liquid crystal 406 can be increased, the display cell of high density and high responsiveness utilizing heating and electric field effects is obtd. as a display body for a word processor or the like. The high speed responsiveness is improved additionally if a copper plate for heat radiation is brought into tight contact with the outside of the substrate 401 and the substrate is forcibly cooled. |
