Patent ID: 7002537
Filing Date: 2006-02-21
Classification: G09G

Abstract:
1. A driving method for an electro-optical device which performs gray-scale display of a plurality of pixels arranged in a matrix, the driving method comprising: dividing a first time period which is part of a single time frame into a plurality of sub-fields, and in each sub-field, turning on or off each pixel by applying to the pixel one of two-level signals for a period of the sub-field, the cumulation of on periods during the first time period of the single time frame being variably controlled in accordance with a gray-scale level of the pixel for the gray-scale display; and applying an effective voltage to the pixels in a second time period, the second time period being dispersed in the period of the single time frame, in accordance with a threshold voltage of a transmissivity characteristic relative to a voltage applied to electro-optical material used in the electro-optical device, turning on and off periods in the second time period being separated in a time period of one frame and the first time period being inserted between the turning on and off periods.