New Pixel Circuit with Negative Feedback Scheme for AMOLED Smartwatch Displays

Jui Hung Chang, Li Wei Shih, Chih Lung Lin

研究成果: Conference contribution

摘要

This paper proposes a new p-type LTPS TFT pixel circuit for use in AMOLED smartwatch applications with a frame rate of 15 Hz. By adopting the negative feedback scheme, the voltage distortion at the gate node of the driving TFT is greatly ameliorated. The HSPICE simulation demonstrates that the relative current error rates caused by ±0.5 V V T H variations of TFTs are all suppressed below 4.8%. Moreover, the distortions of OLED currents during the long emission period of 66.67 ms are only 2.58 nA at the low gray level when the pixel circuit is operated at a frame rate of 15 Hz.

原文English
主出版物標題Proceedings of AM-FPD 2021 - 28th International Workshop on Active-Matrix Flatpanel Displays and Devices
主出版物子標題TFT Technologies and FPD Materials
發行者Institute of Electrical and Electronics Engineers Inc.
頁面129-132
頁數4
ISBN(電子)9784991216909
出版狀態Published - 2021
事件28th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2021 - Virtual, Online, Japan
持續時間: 2021 6月 292021 7月 2

出版系列

名字Proceedings of AM-FPD 2021 - 28th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials

Conference

Conference28th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2021
國家/地區Japan
城市Virtual, Online
期間21-06-2921-07-02

All Science Journal Classification (ASJC) codes

  • 電腦繪圖與電腦輔助設計
  • 媒體技術
  • 電子、光磁材料
  • 儀器

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