Driving response and two-stage waveform control of quantum-dot electrowetting display devices

SHI Yuqian; LÜ Shanhong; LIN Shanling; LIN Jianpu; SUN Hailing; LIN Zhixian; GUO Tailiang

doi:10.3724/CJLCD.2026-0185

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Driving response and two-stage waveform control of quantum-dot electrowetting display devices

Driving and Controlling | 更新时间：2026-10-16

- Driving response and two-stage waveform control of quantum-dot electrowetting display devices
- Chinese Journal of Liquid Crystals and Displays Vol. 41, Issue 9, Pages: 1255-1266(2026)
- 作者机构：
  
  1.福州大学先进制造学院，福建泉州 362251
  2.华南师范大学华南先进光电子研究院，广东广州 510631
  3.中国福建光电信息科学与技术创新实验室，福建福州 350116
- 作者简介：
- 基金信息：
  
  National Key Research and Development Program of China(2024YFB3612700)
- DOI：10.3724/CJLCD.2026-0185
  CLC： TN27
- CSTR：32172.14.CJLCD.2026-0185
- Received：10 August 2026，
  
  Revised：2026-08-20，
  
  Published：05 September 2026
- 稿件说明：
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SHI Yuqian, LÜ Shanhong, LIN Shanling, et al. Driving response and two-stage waveform control of quantum-dot electrowetting display devices[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(9): 1255-1266.
DOI：

SHI Yuqian, LÜ Shanhong, LIN Shanling, et al. Driving response and two-stage waveform control of quantum-dot electrowetting display devices[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(9): 1255-1266. DOI： 10.3724/CJLCD.2026-0185. CSTR： 32172.14.CJLCD.2026-0185.

摘要

针对量子点复配油墨后传统电润湿驱动参数难以直接沿用，以及在持续驱动过程中量子点电润湿器件开口保持稳定性有待改善的问题，本文比较不同电压加载方式，考察双极性方波频率和正极性占空比对器件开口响应的影响，并与普通电润湿器件对照分析亮度响应，进而构建启动-维持双阶段波形。结果表明，频率和正极性占空比均会影响量子点器件的开口建立过程，且其亮度-占空比关系与普通器件明显不同；在所测试方案中，采用0.5 s、±22 V启动，随后±18 V维持时，30 s平均开口率达到73.92%，残留面积比例由基准方波的7.84%降至3.48%。在50%正极性占空比下，环境光及环境光叠加395 nm紫外光条件下的亮度分别较基准提高8.20%和20.95%。针对量子点复配后的驱动响应特性匹配启动与维持阶段幅值，可在保持有效开口的同时降低油墨残留并改善光学输出，这为量子点电润湿显示器件的针对性驱动波形设计及优化提供实验依据。

Abstract

Driving parameters established for conventional electrowetting displays cannot readily be applied directly to devices incorporating quantum-dot-containing oil， and aperture retention during sustained driving requires improvement. This study compares different voltage-loading protocols， investigates the effects of bipolar square-wave frequency and positive-polarity duty cycle on aperture response， and analyzes luminance responses in comparison with those of conventional electrowetting devices. A startup-maintenance two-stage driving waveform is then developed. The results show that both frequency and positive-polarity duty cycle affect aperture formation in the quantum-dot devices， whose luminance-duty-cycle relationship differs markedly from that of conventional devices. Among the tested schemes， applying ±22 V for the first 0.5 s followed by ±18 V during the maintenance stage yields an average aperture ratio of 73.92% at 30 s and reduces the residual area ratio from 7.84% under the reference square wave to 3.48%. At a positive-polarity duty cycle of 50%， luminance increases by 8.20% under ambient light and by 20.95% under ambient light with additional 395 nm ultraviolet illumination， relative to the reference waveform. Matching the startup and maintenance voltage amplitudes to the driving-response characteristics of devices incorporating quantum dots can maintain an effective aperture while reducing residual oil and improving optical output. These findings provide an experimental basis for the targeted design and optimization of driving waveforms for quantum-dot electrowetting display devices.

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Related Author

LV Shanhong

LIN Shanling

LIN Jianpu

SUN Hailing

LIN Zhixian

SHI Yuqian

LIN Zhixian

GUO Tailiang

Related Institution

School of Advanced Manufacturing， Fuzhou Univ

South China Academy of Advanced Optoelectronics， South China Normal Univ

The College of Physics and Information Engineering， Fuzhou University

Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China

The College of Advanced Manufacturing， Fuzhou University

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