Patent ID: 7535449
Filing Date: 2009-05-19
Classification: G09G

Abstract:
1. A method of driving electro-optical device having scanning lines, data lines, power lines and pixel circuits each of which includes an electro-scanning optical element and a driving transistor, the method comprising: setting a potential of a controlling terminal of the driving transistor to a first voltage level, the setting of the potential of the controlling terminal to the first voltage level including electrically connecting one of a source and a drain to the controlling terminal during a first period; setting the potential of the controlling terminal to a second voltage level by a capacitive coupling occurring at a capacitive element connected to the controlling terminal, the setting of the potential of the controlling terminal to the second voltage level including applying a data voltage to the capacitive element through one data line of the data lines and a switching transistor; and supplying a driving current or driving voltage to the electro-optical element during a second period, the source and the drain being electrically disconnected from the controlling terminal of the driving transistor during at least part of the second period, the driving current or the driving voltage having a level corresponding to a conduction state of the driving transistor during a second period, the electro-optical element being electrically connected to one power line of the power lines during a second period in which the supplying of the driving current or the driving voltage to the electro-optical element is carried out.