Advanced Materials, Vol.17, No.9, 1150-1150, 2005
Cholesteric emulsions for colored displays
A new colored electro-optical film obtained by means of an oriented cholesteric liquid crystal (LC) confined in droplets dispersed in an organic-monomer matrix is presented. The cholesteric LC pitch can be adjusted using a photosensitive chiral material in order to produce the three primary reflected colors (see Figure). Morphology, response times (τ(ON) and τ(OFF)), and reflection spectra of such films are reported.