684349.fig.009a
(a)
684349.fig.009b
(b)
Figure 9: Illustration of the principle behind the operation of a PDLC display. The material has a white translucent appearance in the “off” state. Application of a voltage to the transparent conducting electrodes reorients the symmetry axis of the bipolar droplets parallel to the electric field direction (“on” state) and the material becomes transparent if the ordinary refractive index of the liquid crystal matches that of the polymer matrix.