Fabrication and bending reliability evaluation of flexible electrowetting display device

IF 2.2 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of the Society for Information Display Pub Date : 2025-04-28 DOI:10.1002/jsid.2085

Tinghong Yang, Miaoyang Wei, Jianyang Guo, Caihong Sun, Luyao Yan, Xiaomeng Li, Simin Ma, Dongxiang Luo, Rui Zhou, Tang Biao, Jiawei Lai, Dong Yuan

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Abstract

The Electrowetting Display (EWD) has numerous advantages making it a potential candidate for flexible displays. However, there has been limited research on the bending performance of Flexible Electrowetting Displays (FLEWD) and their feasibility in terms of flexibility has not been confirmed. To investigate the impact of bending on stability performance, FLEWD using flexible active-matrix substrate and PEN conductive substrates were fabricated. A systematic performance evaluation system for flexible devices is established. The results showed that FLEWD can display videos normally during bending. In the off state, the device can withstand a bending limit represented by a radius of 2 cm at a bending speed of 80 mm/s for 5,000 times. In the on state, the corresponding limits are 4 cm, 40 mm/s, and 100 times. Besides, the failure mode of FLEWD bending is clarified, which provides a guideline for the improvement of the flexural performance of flexible EWD in the future.

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柔性电润湿显示装置的制作及弯曲可靠性评价

电润湿显示（EWD）具有许多优点，使其成为柔性显示的潜在候选者。然而，关于柔性电润湿显示器（FLEWD）弯曲性能的研究有限，其在柔性方面的可行性尚未得到证实。为了研究弯曲对稳定性能的影响，分别制备了柔性有源基板和PEN导电基板的FLEWD。建立了柔性器件系统的性能评价体系。结果表明，FLEWD在弯曲过程中可以正常显示视频。在关闭状态下，设备可以承受半径为2cm的弯曲极限，弯曲速度为80mm /s，弯曲次数为5000次。在导通状态下，相应的极限为4 cm、40 mm/s、100次。阐明了挠性电钻弯曲的破坏模式，为今后提高挠性电钻的弯曲性能提供了指导。

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来源期刊

Journal of the Society for Information Display 工程技术-材料科学：综合

CiteScore

4.80

自引率

8.70%

发文量

审稿时长

3 months

期刊介绍： The Journal of the Society for Information Display publishes original works dealing with the theory and practice of information display. Coverage includes materials, devices and systems; the underlying chemistry, physics, physiology and psychology; measurement techniques, manufacturing technologies; and all aspects of the interaction between equipment and its users. Review articles are also published in all of these areas. Occasional special issues or sections consist of collections of papers on specific topical areas or collections of full length papers based in part on oral or poster presentations given at SID sponsored conferences.