Title :
A new pixel circuit for driving organic light-emitting diode with low temperature polycrystalline silicon thin-film transistors
Author :
Tai, Ya-Hsiang ; Chen, Bo-Ting ; Kuo, Yu-Ju ; Tsai, Chun-Chien ; Chiang, Ko-Yu ; Wei, Ying-Jyun ; Cheng, Huang-Chung
Author_Institution :
Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
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.
Keywords :
SPICE; circuit simulation; display devices; driver circuits; elemental semiconductors; network synthesis; organic light emitting diodes; programmable circuits; silicon; thin film circuits; thin film transistors; AMOLED; LTPS-TFT; SPICE simulation; active matrix organic light-emitting diode; circuit simulation; driver circuits; low temperature polycrystalline silicon; n-type TFT; network synthesis; p-type TFT; programmable circuits; thin film circuits; thin-film transistors; threshold voltage compensation pixel circuit; Active matrix organic light emitting diodes; Circuit simulation; Circuit synthesis; Image storage; Organic light emitting diodes; SPICE; Silicon; Temperature; Thin film transistors; Threshold voltage; Active matrix organic light-emitting diode (AMOLED); SPICE simulation; low-temperature polycrystalline silicon thin-film transistors (LTPS-TFTs); pixel design;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2005.853362
