Patent ID: 6329976
Filing Date: 2001-12-11
Classification: G09G

Abstract:
A display device comprising an electro-optical material between two substrates, at least one of said substrates being transparent,a plurality of picture electrodes provided on a first of said substrates, each picture electrode being coupled through a respective switching element to a row electrode and a column electrode, and each picture electrode being capacitively coupled to a further electrode, anddrive means for providing the row electrodes with respective selection signals for respective row selection periods of time during a field period, for providing the respective row electrodes or the further electrode with respective bias signals for respective bias periods of time during said field period, a respective row selection period and respective bias period together being less than one field period, and for providing the respective row electrodes or the further electrode with respective non-selection signals for the respective balances of said field period,characterized in that each respective bias period has a duration greater than the respective row selection period of time, and the drive means comprises means, responsive to the device temperature, for changing the voltage level of the respective bias signals.