349 / | HD | LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS |
19 | DF | PARTICULAR EXCITATION OF LIQUID CRYSTAL {6} |
33 | DF | .~ Electrical excitation of liquid crystal (i.e., particular voltage pulses, AC vs. DC, threshold voltages, etc.) {8} |
35 | .~.~ For driving Grandjean to focal conic or dynamic scattering type liquid crystal |