Electrically responsive photonic crystals are promising materials for electrophoretic color displays with better brightness and color saturation. However, electric field must always be applied to maintain the specific colors, which brings concerns about the power consumption and signal stability and reversibility. Here, we show an electrically responsive photonic crystal with two stable states at 0 V, which are the colored state or the colorless state with ordered or disordered particle arrangement. The color state can be reversibly switched by applying a short-time electrical field, just like in the case of commercial electrophoretic ink. With optimized recipe and electric field, the photonic crystals encapsulated in the prototype display panel are proved to have potentials in high resolution, multi-color, and greyscale display, which lays down a firm basis for reflective displays with low power consumption and good visibility.

电响应光子晶体是用于电泳彩色显示器的有前途的材料，具有更好的亮度和色彩饱和度。然而，必须始终施加电场以保持特定颜色，这带来了功耗和信号稳定性和可逆性的担忧。在这里，我们展示了一种电响应光子晶体，在 0 V 时具有两个稳定状态，即有色状态或无色状态，具有有序或无序的粒子排列。颜色状态可以通过施加短时电场可逆地切换，就像商业电泳墨水的情况一样。通过优化配方和电场，封装在原型显示面板中的光子晶体被证明具有高分辨率、多色和灰度显示的潜力，