A method of driving a liquid crystal display matrix, in which digit drive signals are applied to digit electrodes and segment drive signals are applied to segment electrodes. Each of the digit drive signals has first pulse components of a first pulse width varying at a plurality of voltage potentials...http://www.google.fr/patents/US4100540?utm_source=gb-gplus-shareBrevet US4100540 - Method of driving liquid crystal matrix display device to obtain maximum contrast and reduce power consumption
Method of driving liquid crystal matrix display device to obtain maximum ...
