Liquid crystal device and driving method therefor

A driving method for a liquid crystal device comprising a plurality of picture elements arranged in a plurality of rows;

• each picture element comprising a ferroelectric liquid crystal showing a first stable state and a second stable state depending on an electric field applied thereto and having a volume resistivity of 1.times.10.sup.9 .OMEGA..cm or larger
• said driving method comprising:
• orientating the ferroelectric liquid crystal at a picture element on a selected row to the first or second stable state to write in the picture elements row by row;
• and
• applying a voltage signal of an alternating waveform to the ferroelectric liquid crystal at the picture element on a nonselected row.

A driving method for a liquid crystal device comprising a plurality of picture elements arranged two-dimensionally;

• each picture element comprising opposite electrodes, a layer of a ferroelectric liquid crystal having a volume resistivity of 1.times.10.sup.9 .OMEGA..cm or larger and disposed between the opposite electrodes and having a first display state and a second display state;
• said driving method comprising:
• applying a first writing signal of a polarity for producing a first display state and a holding signal of a reverse polarity for holding the first display state respectively to a selected first group of picture elements among said plurality of picture elements, and
• applying a second writing signal for producing a second display state respectively to a remaining second group of picture elements.