An OLED device and control circuit, comprising: a) an OLED responsive to a
drive signal; b) a drive circuit connected to the OLED responsive to a
charge signal for controlling the drive signal; c) one or more variable
charge storage capacitors providing the charge signal; d) a deposition
circuit for depositing variable charge in the one or more variable charge
storage capacitors; and e) a modulation circuit responsive to an external
modulation signal for removing charge from the one or more variable
charge storage capacitors.