Method and apparatus for driving display apparatus.

摘要

In accordance with the invention, gradation display is performed for each picture element in capacitive display apparatuses such as EL display apparatus by means of pulse width modulation (PWM). In doing so, pulse duration of the voltage (VM) applied to one group of electrodes (X) among the a plurality of electrodes arranged in matrix is so set as to span over two scanning periods, during which another group of electrodes (Y) which are grouped into pairs each of two adjacent lines are scanned successively, to reduce the number of drive voltage charge and discharge cycles. Consequently power consumption of the display apparatus of PWM system can be controlled to a low level.