Sj. Im et al., STABILITY STUDIES ON POLYMER-DISPERSED LIQUID-CRYSTAL FILMS, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 294, 1997, pp. 407-410
Polymer Dispersed Liquid Crystal(PDLC) is a class of electroscattering
materials exhibiting very promising properties for display device app
lications. For the last few years, the electrooptical properties of PD
LC have improved drastically to use projection device with high bright
ness. We have studied stability of PDLC films which formed by ultravio
let initiated photopolymerization and liquid crystal phase separation.
We evaluated several stability items in PDLC films such as running an
d environment test, accelerated life time at low and elevated temperat
ure, voltage holding ratio(VHR) variations according to UV exposing ti
me and temperature.