Abstract: According to the invention there is provided a liquid crystal display device comprising at least two substrates, a homeotropic alignment film coated on said substrates, and a nematic liquid crystal mixture between adjacent substrates. A homeotropic alignment film in the form of a single Fluorinated-Diamond like Carbon (F-DLC) layer deposited onto the substrates with fluorinated gases by oblique plasma deposition method is disclosed.

Abstract: The invention relates to reflective mixed-mode twisted nematic liquid crystal displays. A direct-view display consists of a front substrate, a polarizer, liquid crystal and a rear substrate having a reflective coating. The twist angle, polarizer angle and retardation are optimized and fall within the following ranges: twist angle of between 67° and 83°; polarizer angle of between 5° and 21° or between 95° and 111°; and retardation of between 0.18 and 0.28. An alternative configuration for the display is a projection display having a front substrate, a rear substrate with a reflective coating, liquid crystal between the substrates, a polarizing beam splitter and a screen.

Abstract: The invention relates to a method of driving an LCD, comprising providing an array of pixels, characterised by the steps of providing cholesteric liquid crystals arranged between spaced transparent substrates, and by providing a reset pulse and a plurality of selection pulses whereby to provide resultant driving waveform(s).

Abstract: The invention relates to a m-column/n-row/m×n-pixel inversion driving method for a liquid crystal display where m can be any integer from two to the number of scan lines and n can be any integer of two to the number of column lines. Such a driving method greatly reduces total fringe field effect on display to maintain contrast whilst minimizing perception of flickering. Moreover, the number of inversions can be adjusted to strike a balance between contrast and perceptibility of flickering. The n-row inversion method can be applied to passively and actively driven liquid crystal displays where n can be any integer from two to the number of scan lines. The m-column inversion driving method can be applied to an actively driven LCD where m can be any integer from two to the number of column lines while the n×m-pixel inversion method can be applied to an actively driven LCD where n can be any integer from two to the number of scan lines and m can be any integer from two to the number of column lines.