A grey tone display and a driving method are described. The display comprises a light influencing layer, and electrode pad located adjacent to the layer at one side of the layer in order to define a pixel in the layer, an n-channel field effect transistors connected to the electrode pad at its source...http://www.google.de/patents/US5495353?utm_source=gb-gplus-sharePatent US5495353 - Electro-optical device and driving having an improved electrode and driving arrangement