Title :
AMOLED Pixel Circuit With Electronic Compensation of Luminance Degradation
Author :
Ashtiani, Shahin J. ; Chaji, G.Reza ; Nathan, Arokia
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont.
fDate :
3/1/2007 12:00:00 AM
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
Keywords :
LED displays; driver circuits; organic light emitting diodes; thin film transistors; AMOLED pixel circuit; active-matrix organic light-emitting diodes; electronic compensation; hydrogenated amorphous silicon; luminance degradation; thin-film transistors; voltage programmed pixel circuit; Active matrix organic light emitting diodes; Active matrix technology; Amorphous silicon; Costs; Feedback circuits; Flat panel displays; Organic light emitting diodes; Thermal degradation; Thin film transistors; Threshold voltage; Active-matrix organic light-emitting diode (AMOLED); hydrogenated amorphous silicon (a-Si:H); luminance degradation; pixel circuit; thin-film transistor (TFT);
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2006.890711
