Flexible Reflective Liquid Crystal Displays using Stainless Steel Substrate

We have developed flexible reflective liquid crystal (LC) devices angstrom angstrom using stainless steel foil and polycarbonate substrates. We established an optical design method to make reflective LC devices by compensating for the phase retardation of the vertically aligned (VA) -mode LC and aluminum electrode with a polycarbonate substrate and polyimide film. Our method achieved a good contrast ratio, over 30:1, across a wide range of viewing angles. These results show that it is possible to realize high quality reflective displays with low power consumption and high flexibility.