One or more element driving TFTs (20) for controlling the amount of current supplied from a power supply line VL is (are) provided between an organic EL element (50) and the power supply line VL. The element driving TFT (20) is placed so that its channel length direction is parallel to the longitudinal...http://www.google.com.au/patents/US20020101394?utm_source=gb-gplus-sharePatent US20020101394 - Thin film transistor for supplying power to element to be driven
