7-3: AMOLED Pixel Structure Using the Close Loop Negative Feedback Method for High Resolution Displays

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• 作者：Chen-Chi Lin ; Shao-Wen Yen ; Sheng-Yu Hsu ; Ting-Wei Kuo ; Tsong-Shing Lee ; Chun-Hsin Liu ; Shih-Liang Lin ; Hsiamg-Yun Hsiao ; Chih-Hao Kung ; Yu-Fang Yeh and Yu-Hsin Lin
• 刊名：SID Symposium Digest of Technical Papers
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：47
• 期：1
• 页码：61-64
• 全文大小：860K
• ISSN：2168-0159

文摘

A new 5T2C pixel circuit is proposed in this study to compensate TFT Vth variation, power line IR-drop, and OLED degradation in LTPS PMOS process and it also has The Close Loop Negative Feedback Method (CL-NFM) to compensate the gate voltage distortion of the driving TFT during the emission phase. The simulation showed that the emission current error are 4.85%, 9.02% and 39.25% separated for high, middle and low grey level compared between the current value in 1ms and 16ms, which is 12.51%, 38.14% and 97.8% for the conventional pixel structure, respectively.