3-7a 2周波駆動PDLCにおけるメモリスイッチング特性の改善

概要

論文の詳細を見る
Improvement of the switching parameters is reported of memory type polymer dispersed liquid crystal (PDLC) with dual frequency driven liquid crystal in an acrylate polymer matrix. In one type a low frequency voltage (2.5 kHz/100 V) applied for 2.5 s only results in the transparent memory state while high frequency pulses (100 kHz/80 V) of less than 0.5 s duration switches to the opaque state; which is a time useful for practical applications, e.g. still picture. Applying repeatedly high frequency voltage pulses recover the initial scattered state which is different from above two states. Another type of the PDLC uses one voltage pulse (100 V for 2.5 s) for the transparent memory state instead of a low frequency voltage. In both cases surface treatment of the cell provides a drastic effect on the uniformity of the PDLC droplets and on the switching time.
日本液晶学会の論文
1998-10-12