P-3: A New LTPS Pixel Circuit for Compensating the Variation of TFT Characteristics and Alleviating OLED Degradation

• Published in: SID International Symposium Digest of technical papers Vol. 46; no. 1; pp. 1127 - 1130
• Main Authors: Hsu, Wei-Chu, Wu, Pi-Cheng, Jen, Ko-Ruey, Lee, Chien-Ya, Lin, Hong-Shen, Chang, Lee-Hsun, Lin, Yu-Hsin
• Format: Journal Article
• Language: English
• Published: Campbell Blackwell Publishing Ltd 01.06.2015; Wiley Subscription Services, Inc
• Subjects: Active matrix displays; Active-matrix organic light-emitting diode (AMOLED); Circuits; Compensation; Displays; Low temperature poly-silicon (LTPS); Organic light emitting diodes; panel non-uniformity; Pixels; Semiconductor devices; Thin film transistors; threshold voltage

In this paper, we have developed a pixel compensation circuit that utilizes six LTPS TFTs and one capacitor for AMOLED displays by voltage‐programmed method. The proposed pixel circuit can compensate the threshold voltage variation of TFT and extend OLED lifetime, which is able to show better compen...