The final purpose of this study is realizing a solid-state responsive photonic crystals (PCs),which is constructed from program-controlled pixels,and improving the performance of reflection type flexible solid-state color display device.In this study,PCs growth on electroactive polymer (EAP) acrylate film VHB4905 substrate is achieved by coating nano hydrophilic particle on the substrate,which can create good conditions for PCs assembly.By comparing the reflection spectra of self-assembled PS two-dimensional photonic crystals (2D PCs) with different layer number of hydrophilic coatings,it is concluded that two layers of nano hydrophilic coatings is the best for self-assembling on acrylate film.There has a higher reflectivity enhancement peak in the reflection spectrum of PS 2D PCs on the modified acrylate substrate compared with that of PS 2D PCs on traditional glass substrate.So,the feasibility of as sembling PCs on EAP modified by hydrophilic coa tings is verified.Furthermore,a technical basis for preparing responsive PCs driven by EAP is provided.