Surface Force Driven Syspended Particle Devices

摘要

An optical device employs a fluid host medium ( 30 ) including a polar liquid ( 31 ) and an apolar liquid ( 32 ). The optical device further employs one or more electro-optically sensitive flakes ( 40 - 42 ) disposed within fluid host medium ( 30 ). To facilitate a switching of the optical device among a plurality of optical states (e.g., varying degrees of light reflecting states, light absorbing states, light fluorescing states and/or light transmitting states), each flake ( 40 - 42 ) has one or more hydrophilic layers ( 44 ) interfacing with the polar liquid ( 31 ) and/or one or more hydrophobic layers ( 45 ) interfacing with the apolar liquid ( 32 ).