Display unit employing phase transition liquid crystal and metho

Details Display unit employing phase transition liquid crystal and metho Display unit employing phase transition liquid crystal and metho

1997-01-31

1999-06-29

Mengistu, Amare

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

349 33, G09G 336

Patent

active

059174650

ABSTRACT:
A method of driving a liquid crystal display (LCD). The LCD employs a phase transition liquid crystal. An AC waveform drives the liquid crystal. Pauses, which represent periods in which zero volts are applied to the LCD, are inserted into the AC waveform to attenuate the internal electric fields produced by the electric field reactions of molecules in the phase transition liquid crystal. This method allows thin film transistors to drive the phase transition liquid crystal, thus realizing a projection LCD that employs no polarizing film and is bright and stable.

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