Liquid crystal display and driving method of the same

A liquid crystal display comprising:

• a first substrate including a plurality of pixel electrodes arranged substantially in a matrix, a plurality of scanning lines disposed along rows of said pixel electrodes, a plurality of signal lines disposed along columns of said pixel electrodes, and a plurality of switching elements each of which is disposed near an intersection of corresponding scanning and signal lines and driven via the corresponding scanning line to apply the potential of the corresponding signal line to a corresponding pixel electrode;
• a second substrate including a counter electrode facing said pixel electrodes;
• a driving section configured to drive one of said scanning lines sequentially selected for each horizontal scanning period, and said signal lines during said each horizontal scanning period;
• a liquid crystal cell including a ferroelectric liquid crystal material configured to be held between said first and second electrode substrates and optical response thereof is asymmetric with respect to the polarity of a voltage applied between said pixel and counter electrodes;
• and
• a liquid crystal controller configured to control said driving section to supply to each signal line an image signal which is updated for each of three or more fields forming one frame and to reverse the polarity of the image signal in one frame period, said liquid crystal controller being configured to apply the image signal of a first polarity for each field in a first one of two successive periods obtained by dividing the frame period, and to apply the image signal of a second polarity opposite to the first polarity and of a fixed amplitude for each subsequent field in a second one of the two successive periods,
• wherein the image signal applied for the fields other than the last field in the second one of the two successive periods has a fixed amplitude, and the image signal applied for the last field in the second one of the two successive periods has an amplitude that depends on the amplitude of the image signal for the next frame.

A driving method for a liquid crystal display having a ferroelectric liquid crystal material configured to be held between a pair of electrode substrates and optical response thereof is asymmetric with respect to the polarity of a voltage applied, comprising:

• applying an image signal, which is updated for each of three or more fields forming one frame, to a pixel of said liquid crystal material;
• and
• reversing the polarity of the image signal in one frame period, said image signal of a first polarity being applied for each field in a first one of two successive periods obtained by dividing the frame period, and said image signal of a second polarity opposite to the first polarity being applied for each subsequent field in a second one of the two successive periods,
• wherein the image signal applied for the fields other than the last field in the second one of the two successive periods has a fixed amplitude, and the image signal applied for the last field in the second one of the two successive periods has an amplitude that depends on the amplitude of the image signal for the next frame.