New 2-D/3-D Switchable Pixel Circuit to Achieve Uniform OLED Luminance for High-Speed AMOLED Displays

Chih Lung Lin, Po Chun Lai, Po Cheng Lai, Po Syun Chen

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

This paper presents a new 2-D/3-D switchable pixel circuit based on low-temperature polycrystalline-silicon thin-film transistors (TFTs) at a frame rate of 240 Hz for active-matrix organic light-emitting diode (OLED) displays. The proposed circuit compensates for threshold voltage (VTH) variations of TFTs, VDD IR drops, and degradation of OLED luminance. To achieve highly uniform displays during high-speed operation, the circuit uses simultaneous emission in 3-D mode and parallel addressing in 2-D mode to ensure that the period of compensation is sufficiently long to detect each variation of normalized luminance. Simulation results verify that variations in the normalized luminance of the proposed circuit are all less than 4% when the VTH of the driving TFT varies by ±0.5 V, VDD drops by 1 V, and the VTH shift of the OLED increases from 0 to 0.9 V, simultaneously.

原文English
文章編號7484661
頁(從 - 到)436-440
頁數5
期刊IEEE Journal of the Electron Devices Society
4
發行號6
DOIs
出版狀態Published - 2016 11月

All Science Journal Classification (ASJC) codes

  • 生物技術
  • 電子、光磁材料
  • 電氣與電子工程

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