349 / | HD | LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS |
56 | DF | PARTICULAR STRUCTURE {7} |
84 | DF | .~ Having significant detail of cell structure only {17} |
104 | .~.~ Filter {3} | |
105 | DF | .~.~.~> Interference filter |
106 | DF | .~.~.~> Color filter {3} |
110 | DF | .~.~.~> Opaque mask or black mask {1} |