Hardware engine for real-time pen tracking on electrophoretic displays

Wen Chung Kao*, Yi Chen Kang, Chien Hui Liu, Wei Te Chang, Jia An Ye


研究成果: 雜誌貢獻期刊論文同行評審

2 引文 斯高帕斯(Scopus)


Although the electrophoretic display (EPD) has become the main solution to the display of an electronic reader (E-Reader), the latency of displaying a new image on the EPD is much lower than that on liquid crystal displays. This problem leads to poor user experience when a user wants to annotate some important points by supplying with more comments on the EPD. The technical issues that should be dealt with include the pixel interpolation between the plotted pixels and the fast driving waveform design for those interpolated pixels. In this paper, we propose a new hardware engine that performs real-time pixel interpolation to compensate the resolution mismatch between the touch panel and the EPD. In addition, a new fast driving scheme for plotting the interpolated pixels to the black state on the EPD is also proposed. The experimental results show that the engine can complete the pixel interpolation in 2 ms and the pixels will not be overdriven. The overall latency of the pen tracking function is much shorter than that of the previous approaches.

頁(從 - 到)139-145
期刊IEEE/OSA Journal of Display Technology
出版狀態已發佈 - 2013

ASJC Scopus subject areas

  • 電子、光磁材料
  • 凝聚態物理學
  • 電氣與電子工程


深入研究「Hardware engine for real-time pen tracking on electrophoretic displays」主題。共同形成了獨特的指紋。