With the development of portable and wearable devices, flexible displays have attracted extensive interest and have become increasingly important in our daily life. In this study, a flexible electrowetting display (FEWD) was proposed and fabricated. To prevent a short circuit between the top and bottom electrodes, various types of support pillars were fabricated on the top substrates through a photolithography technique. The FEWD was measured under positive and negative bending conditions, with the applied voltage increasing from 0 to 24 V. The aperture ratio and response time were investigated to better evaluate and understand the performance of the FEWD. The mechanical properties of the support pillars and the FEWD were evaluated by means of compression force and cyclic bending tests, respectively. The results showed that the FEWD operated properly at 24 V under a bending curvature of 0.25 cm⁻¹, achieving the largest aperture ratio of 54.96%. Moreover, the oil movement could be influenced by the support pillars in the pixel. With the advantages of both optical performance and flexibility, an FEWD with support pillars is a novel item for future development of reflective transparent displays and provides a promising strategy for developing flexible, wearable, and visible devices.

中文翻译：

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具有支撑柱的柔性电润湿显示器的制造和评估

随着便携式和可穿戴设备的发展，柔性显示器引起了广泛的兴趣，并在我们的日常生活中变得越来越重要。在这项研究中，提出并制造了一种柔性电润湿显示器（FEWD）。为了防止顶部和底部电极之间的短路，通过光刻技术在顶部基板上制造了各种类型的支撑柱。FEWD 在正和负弯曲条件下测量，施加的电压从 0 V 增加到 24 V。研究孔径比和响应时间以更好地评估和了解 FEWD 的性能。支撑柱和FEWD的力学性能分别通过压缩力和循环弯曲试验进行评估。^-1，达到54.96%的最大开口率。此外，油的运动可能会受到像素中的支柱的影响。具有光学性能和灵活性的优势，具有支撑柱的 FEWD 是反射式透明显示器未来发展的新产品，并为开发柔性、可穿戴和可见设备提供了有前景的策略。