Grating structure of 2D (two-dimensional)/3D (three-dimensional) switching display device

The invention provides a grating structure of a 2D (two-dimensional)/3D (three-dimensional) switching display device. The grating structure comprises a first transparent substrate, a first transparent conductive film, a second transparent substrate, a second transparent conductive film, a solution type electrochromic material, a separation element made of an inorganic material and a lead wire layer, wherein the second transparent substrate and the second transparent conductive film are arranged at one side of the first transparent conductive film at an interval, so that a potential difference is formed between the first transparent conductive film and the second transparent conductive film; the solution type electrochromic material is arranged between the second transparent conductive film; the separation element made of an inorganic material is arranged on one face of the second transparent conductive film; and the lead wire layer is arranged at the periphery of one side face of the first transparent conduct