A potential of a gate of a driving transistor is fixed, and the driving transistor is operated in a saturation region, so that a current is supplied thereto anytime. A current control transistor operating in a linear region is disposed serially with the driving transistor, and a video signal for transmitting...http://www.google.fr/patents/US8026877?utm_source=gb-gplus-shareBrevet US8026877 - Element substrate and light-emitting device
