In a drive circuit to be used for a light-emitting panel formed by a light-emitting element array having a matrix type configuration, wherein a plurality of thin film transistors are arranged for each pixel of the light-emitting element array, a circuit for canceling the offset voltage of a drive transistor...http://www.google.de/patents/US20030016190?utm_source=gb-gplus-sharePatent US20030016190 - Drive circuit to be used in active matrix type light-emitting element array
