Abstract
A new voltage-programmed pixel circuit using hydrogenated amorphous
silicon (a-Si:H) thin-film transistors (TFTs) for active-matrix organic light-emitting
diodes (AMOLEDs) is presented. In addition to compensating for the shift in
threshold voltage of TFTs, the circuit is capable of compensating for OLED
luminance degradation by employing the shift in OLED voltage as a feedback
of OLED degradation.
© 2007 IEEE
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