Modern liquid crystal displays (LCDs) operate by achieving a desired orientation
of the LC molecules within the display. LCMRC researchers have demonstrated that
topographic surface patterns made by nanoimprinting can produce exotic surface
alignment of LCs, including bistable orientations (NE or NW) generated by an
array of nanoscale boxes on the surface, as shown in the figure. Bistability is
a feature by which the pixels in a display are able to remember their state even in
absence of applied voltage, an enabling capability for the fabrication of
extremely low power consumption displays.
|
Bistable Orientaton of Liquid Crystals on Nanoimprinted Topography |