Abstract
This paper deals with software compensation of threshold
voltage shift (VT shift) in amorphous silicon based active matrix OLED displays
by use of an external microcontroller. The use of compensating circuits can
result in lower aperture ratios, increased power consumption and complex driving
methods and is hence unsuitable. The algorithm for software control makes
use of quick parameter extraction of device physical parameters, thereby enabling
prediction of VT shift corresponding to a data stream seen by a pixel.
© 2008 IEEE
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