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Voltage-Programming Scheme for Current-Driven Arnoled Displays

  • US 20080191976A1
  • Filed: 06/28/2005
  • Published: 08/14/2008
  • Est. Priority Date: 06/29/2004
  • Status: Active Grant
First Claim
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1. A system for driving a display which includes a plurality of pixel circuits, each having a plurality of thin film transistors (TFTs) and an organic light emitting diode (OLED), comprising:

  • a voltage driver for generating a voltage to program the pixel circuit through a data node;

    a programmable current source for generating a current to program the pixel circuit through the data node; and

    a switching network for selectively connecting the data driver or the current source to one or more pixel circuits through the data node.

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