fig5

Figure 5. Recent advances in active layers pattern design. (A) A multicolor ECD based on the bowknot-like patterned WO₃ layer on the Cr/Ag-PET electrode with thermal deposition method. Reproduced with permission^[92]. Copyright 2024, Elsevier; (B) Flexible ECD with logo content based on the PEDOT micropattern with localized electrochemical polymerization method using agarose template. Reproduced with permission^[78]. Copyright 2021, ACS Publications; (C) Flexible ECD fabricating based on 2D ordered Ag/W₁₈O₄₉ nanowires network with LB technique. Reproduced with permission^[33]. Copyright 2017, ACS Publications. ECD: Electrochromic display; PET: polyethylene terephthalate; PEDOT: poly(3,4-ethylenedioxythiophene); 2D: two-dimensional; LB: Langmuir-Blodgett.