▎ 摘　　要

NOVELTY - Electronic paper display device, comprises a gel electrode layer and a microcapsule elastomer display layer, where the gel electrode layer is fixedly arranged on the surface of the microcapsule elastomer display layer; and the gel electrode layer is prepared by (i) mixing gel monomers, metal salts, carbon nanomaterials, cross-linking agents and initiators to obtain gel prefabricated solution, (ii) placing the gel prefabricated solution in a mold, and obtaining gel electrode layer after curing; and the microcapsule elastomer display layer is prepared by (a) mixing polymer material with the microcapsules to obtain microcapsule elastomer solution, (b) curing the microcapsule elastomer solution, and then soaking the cured product in a solvent, washing and drying after being taken out. USE - Used as electronic paper display device. ADVANTAGE - The electronic paper display device solves the problem that the existing electronic blackboard/electronic white board/writing screen device has complex structure and cannot be washed by water.