Conjugated electrochromic polymer has promising potentials for many applications, such as smart window, auto sunroof, and displays. Though the reflective display based on conjugated electrochromic polymer has some distinct advantages, such as full color, low power consumption, and easy process, the additive color reproduction scheme adopted in current display technology is not compatible with the intrinsically “color subtractive” electrochromic polymers. Moreover, since the color of the electrochromic polymer depends on the oxidation level, it's difficult to realize gray levels while keeping the color intact. In the work, multi-color electrochromic (EC) devices have been fabricated with our proprietary conjugated polymers combined with solid state electrolyte and metal oxide charge storage material. Based on the optical performance of the EC devices, we simulate the reflective display's performance. Under 3000 lux outdoor ambient light condition, the theoretical contrast ratio reaches 10:1, and the color gamut is about 10.5%. To address the problem of color shift at different gray levels, we propose to use color maps to match any color in the chromaticity diagram. The work provides a preliminary solution to reproduce color on a reflective display based on conjugated electrochromic polymer.

共轭电致变色聚合物在诸如智能窗户，自动天窗和显示器等许多应用中具有广阔的前景。尽管基于共轭电致变色聚合物的反射显示器具有诸如全色，低功耗和易于加工等明显优势，但当前显示技术中采用的加色再现方案与本质上“减色”电致变色聚合物不兼容。而且，由于电致变色聚合物的颜色取决于氧化水平，因此难以在保持颜色不变的同时实现灰度级。在工作中，多色电致变色（EC）器件是由我们专有的共轭聚合物与固态电解质和金属氧化物电荷存储材料制成的。基于EC器件的光学性能，我们模拟了反射型显示器的性能。在3000 lux室外环境光条件下，理论对比度达到10：1，色域约为10.5％。为了解决不同灰度级别的颜色偏移问题，我们建议使用颜色图来匹配色度图中的任何颜色。这项工作为基于共轭电致变色聚合物的反射型显示器上的色彩再现提供了初步的解决方案。