Light valve containing an improved suspension, and liquids therefor

摘要

In a light valve, comprising a cell containing a suspension of small anisometrically shaped particles suspended in an electrically resistive liquid suspending medium, said liquid suspending medium having a polymer dissolved therein and bonded to or associated with said particles, the improvement wherein said liquid suspending material comprises a liquid ester or ether of the formula R1-X-R2 wherein R1 and R2 are as defined herein and X is <IMAGE>