Title :
A novel 3-TFT AMOLED pixel driver for threshold voltage shift compensation
Author :
Amiri, Mozhgan ; Zamir, Amir Roshan ; Shahin, Shiva ; Ashtiani, S.J.
Author_Institution :
IC Design Lab. Sch. of Electr. & Comput. Eng., Univ. of Tehran, Tehran, Iran
Abstract :
A new voltage-programmed pixel using amorphous silicon (a-Si) thin film transistors (TFTs) for active matrix organic light-emitting diodes (AMOLEDs) and its external driver is presented. The proposed pixel circuit is a 3- TFT structure with only 2 controlling signals. This pixel structure along with its driver compensates for the shift in TFTs threshold voltage and reduces current sensitivity of OLED to W/L of TFTs.
Keywords :
driver circuits; light emitting diodes; thin film transistors; 3-TFT AMOLED pixel driver; AMOLED; TFTs threshold voltage; active matrix organic light-emitting diodes; amorphous silicon thin film transistors; controlling signals; current sensitivity reduction; external driver; pixel circuit; threshold voltage shift compensation; voltage-programmed pixel; AMOLED; Cyclic DAC; External Driver; Pixel; TFT; Threshold Voltage Shift Compensation; a-Si;
Conference_Titel :
Electronics Design, Systems and Applications (ICEDSA), 2012 IEEE International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4673-2162-4
DOI :
10.1109/ICEDSA.2012.6507779
