Abstract text

An AMOLED display has a plurality of pixel driving units of voltage-driven design but applied with a driving current. The pixel driving unit has at least a displaying OLED and a driving transistor connected to a reference unit in parallel. The reference unit has a reference OLED and a reference transistor corresponding to the displaying OLED and the driving transistor in the pixel driving unit for defining a specific relationship between the values of the driving current passing through the pixel driving unit and a reference current passing through the reference unit.