Methods for driving electro-optic displays

A method of driving an electro-optic display having a plurality of pixels, each of which is capable of displaying two extreme optical states and at least one intermediate gray level, the method comprising:

• (a) driving at least one pixel from an initial intermediate gray level to one extreme optical state and thence to a first desired intermediate gray level, said at least one pixel thereby forming part of a first image on the display;
• (b) allowing said at least one pixel to remains at the first desired intermediate gray level for a finite length of time;
• and
• (c) thereafter driving said at least one pixel from the first desired intermediate gray level to the opposed extreme optical state and thence to a second desired intermediate gray level, said at least one pixel thereby forming part of a second image on the display.