A three-transistor pixel circuit to compensate for threshold voltage variations of LTPS TFTs for AMOLED displays

Chih Lung Lin, Po Syun Chen, Mao Hsun Cheng, Yen Ting Liu, Fu Hsing Chen

研究成果: Article同行評審

16 引文 斯高帕斯(Scopus)

摘要

This work presents a new pixel circuit adopting low-temperature polycrystalline-silicon thin-film transistors (LTPS TFTs) for active-matrix organic light-emitting diode (AMOLED) displays. The proposed pixel circuit can compensate for the threshold voltage variations of the LTPS TFTs with a simple structure. Simulated results demonstrate that the OLED currents over the entire data voltage range are uniform for 0.5 V variations in the threshold voltage of the driving TFT, unlike in a conventional circuit. Furthermore, the relative current error rates for parasitic loads in the 1280 ×720 resolution AMOLED display are less than 6%.

原文English
文章編號6990482
頁(從 - 到)146-148
頁數3
期刊IEEE/OSA Journal of Display Technology
11
發行號2
DOIs
出版狀態Published - 2015 2月 1

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電氣與電子工程

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