ACTIVE MATRIX DISPLAY DEVICE

摘要

To reduce variation in characteristics of a voltage-current conversion circuit for supplying a data signal to a data line for driving a transistor arranged in a pixel of an organic EL display device. A voltage-current conversion circuit in a data driver for driving a transistor arranged in a pixel comprises reset transistors for correcting a threshold voltage and a reset capacitor, in addition to a voltage-current conversion transistor and a capacitor. By turning on the reset transistors, a threshold voltage Vth is written into the reset capacitor.