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<p>Three-color electrophoretic display (EPD) makes up for the limitation of traditional EPDs in color representation. However, when displaying red color, there are issues such as long response time and low red saturation. In order to improve these defects, a simulation model was constructed using COMSOL finite element simulation method to explore the movement of electro-phoretic particles. Leveraging the principles of three-color EPDs and electrophoresis theory, a novel driving scheme was proposed. This scheme employed high-frequency voltage and low-voltage differential oscillation, aiming to expedite the response time of red particles and enhance the red saturation. The final experimental results showed that the response time of the red particles was 1.76&#xa0;s, a decrease of 2.42&#xa0;s, the number of flickers was 1, a decrease of 8, and the maximum red saturation rose to 0.53, an increase of 0.08. The proposed driving scheme effectively improved the red display performance of three-color EPDs.</p>

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Enhancing red color performance in three-color electrophoretic displays using high-frequency voltage and low-voltage differential oscillation

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月23日

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  • Mouhua Jiang,
  • Zichuan Yi,
  • Jiashuai Wang,
  • Wanzhen Xu,
  • Zhengxing Long,
  • Li Wang,
  • Liming Liu,
  • Feng Chi,
  • Ahmad Umar,
  • Guofu Zhou

摘要

Three-color electrophoretic display (EPD) makes up for the limitation of traditional EPDs in color representation. However, when displaying red color, there are issues such as long response time and low red saturation. In order to improve these defects, a simulation model was constructed using COMSOL finite element simulation method to explore the movement of electro-phoretic particles. Leveraging the principles of three-color EPDs and electrophoresis theory, a novel driving scheme was proposed. This scheme employed high-frequency voltage and low-voltage differential oscillation, aiming to expedite the response time of red particles and enhance the red saturation. The final experimental results showed that the response time of the red particles was 1.76 s, a decrease of 2.42 s, the number of flickers was 1, a decrease of 8, and the maximum red saturation rose to 0.53, an increase of 0.08. The proposed driving scheme effectively improved the red display performance of three-color EPDs.