1407 液晶駆動型マイクロアクチュエータの開発 : 駆動特性に及ぼす壁面アンカリングの影響(S30-2 複雑流体の流動現象(2),S30 複雑流体の流動現象)

概要

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To develop the liquid crystalline micro-actuator,we studied the effect of surface anchoring on the driving performance of the actuator. The experimental setup had been composed of two parallel glass plates (the lower glass plate is fixed,but the upper one can move freely.) with the transparent electrode for impressing electric fields and the orientation layer for determining the orientation direction of liquid crystalline molecules. The weight of the upper glass plate is 0.02g and the gap between the plates is 5μm. To analyze the effect of surface anchoring on the performance,experiments are achieved using two different types of the cell which are planar and hybrid alignment cells. The rectangular-wave voltage of 10V with a duty cycle 5% and frequencies of 1,10,100Hz is applied on the cell. It is found that,the response of the reorientation of the LC molecules in hybrid alignment case is faster than that in planar alignment case,but on the velocity of the upper glass plate in the planar alignment case is faster than that in the hybrid alignment case. In addition,the effect of the frequency on the velocity change of upper glass plate exhibits similar tendency for both hybrid and planar alignment case.
2007-09-07