A new pixel circuit for driving organic light-emitting diode with low temperature polycrystalline silicon thin-film transistors

A new pixel circuit design for active matrix organic light-emitting diode (AMOLED), based on the low-temperature polycrystalline silicon thin-film transistors (LTPS-TFTs) is proposed and verified by SPICE simulation. Threshold voltage compensation pixel circuit consisting of four n-type TFTs, one p-...

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Veröffentlicht in:	Journal of display technology 2005-09, Vol.1 (1), p.100-104
Hauptverfasser:	Tai, Y.-H., Chen, B.-T., Kuo, Y.-J., Tsai, C.-C., Chiang, K.-Y., Wei, Y.-J., Cheng, H.-C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Active matrix organic light emitting diodes Active matrix organic light-emitting diode (AMOLED) Circuit design Circuit simulation Circuit synthesis Circuits Image storage Light-emitting diodes low-temperature polycrystalline silicon thin-film transistors (LTPS-TFTs) Organic light emitting diodes pixel design Pixels Semiconductor devices Silicon Simulation SPICE SPICE simulation Temperature Thin film transistors Threshold voltage Transistors
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Beschreibung
Zusammenfassung:	A new pixel circuit design for active matrix organic light-emitting diode (AMOLED), based on the low-temperature polycrystalline silicon thin-film transistors (LTPS-TFTs) is proposed and verified by SPICE simulation. Threshold voltage compensation pixel circuit consisting of four n-type TFTs, one p-type TFT, one additional control signal, and one storage capacitor is used to enhance display image quality. The simulation results show that this pixel circuit has high immunity to the variation of poly-Si TFT characteristics.
ISSN:	1551-319X 1558-9323
DOI:	10.1109/JDT.2005.853362