Electro-optical device and circuit for driving electro-optical device

An electro-optical device which drives a plurality of pixels to represent gray scale levels based on effective voltages by dividing one frame into a plurality of fields, comprising:

• a calculating unit that receives image data specifying gray scale values in each frame for each pixel and that obtains calculates the amount of variation in voltage to be applied to the pixel between temporally adjacent frames;
• a judgement unit that judges whether or not the amount of variation in voltage satisfies a predetermined condition;
• a voltage pattern determining unit that, when the judgement unit judges that the predetermined condition is satisfied, determines for the pixel:
• a first effective voltage in an early field of the plurality of fields in a previous frame of the temporally adjacent frames, the first effective voltage being shifted in a direction opposite to a variation direction from a voltage according to a gray scale value specified in the image data of the previous frame;
• and
• a second effective voltage in a later field of the plurality of fields in the previous frame, the second effective voltage being shifted in the variation direction from the voltage according to the gray scale value specified in the image data of the previous frame,;
• and
• a driving circuit that supplies the first and second effective voltages in each fields of the previous frame for each pixel.

A circuit for driving an electro-optical device which drives a plurality of pixels to represent gray scale levels based on effective voltages by dividing one frame into a plurality of fields, comprising:

• a calculating unit that receives image data specifying gray scale values in each frame for each pixel and that calculates the amount of variation in voltage to be applied to the pixel between temporally adjacent frames;
• a judgement unit that judges whether or not the amount of variation in voltage satisfies a predetermined condition;
• a voltage pattern determining unit that, when the judgement unit judges that the predetermined condition is satisfied, determines for the pixel:
• a first effective voltage in an early field of the plurality of fields in a later frame of the temporally adjacent frames, the first effective voltage being shifted in a variation direction from a voltage according to a gray scale value specified in the image data of the later frame;
• and
• a second effective voltage in a later field of the plurality of fields in the later frame, the second effective voltage being shifted in a direction opposite to the variation direction from the voltage according to the gray scale value specified in the image data of the later frame;
• and
• a driving circuit that supplies the first and second effective voltages in fields of the later frame for each pixel.