A multi-layer display device including electrochromic material, the display device comprising: a first layer comprising a first substrate (102; 300; 400) depicting a display pattern, wherein the first substrate (102; 300; 400) includes: a first surface; a second surface opposite the first surface; and a first conductive film coating (304, 305,307; 404, 406, 408, 410, 412, 414, 416) on the second surface, and wherein the first conductive film coating (304, 305, 307; 404, 406, 408, 410, 412, 414, 416) forms the display pattern (302; 402); a second layer comprising an electrochromic polymer deposited on the second surface of the first substrate, wherein the second surface of the first substrate includes a first part coated by the first conductive film coating (304, 305, 307; 404, 406, 408, 410, 412, 414, 416) and a second part that is not coated by the first conductive film coating, wherein the electrochromic polymer is deposited onto the first and second parts of the second surface; a third layer comprising a solid state electrolyte; a fourth layer comprising a charge storage layer; a fifth layer comprising a second substrate; wherein the second layer, the third layer, and the fourth layer are interposed between the first layer and the fifth layer; the second substrate includes a third surface, a fourth surface opposite the third surface, and a second conductive film covering on the third surface; the charge storage layer is deposited on the third surface of the second substrate; the solid state electrolyte is deposited on either the electrochromic polymer or the charge storage layer; the first substrate (102; 300; 400) and the second substrate are laminated together with the second surface of the first substrate facing toward the third surface of the second substrate; and wherein, an application of a voltage between the first substrate (102; 300; 400) and the second substrate causes a change in transmission or reflectance of light through the display device such that the display pattern on the first substrate (102; 300; 400) is displayed in a transparent state, said display pattern depicting an image, and, wherein, if a reversed voltage is applied, the display device returns to a non-transparent state and no image is shown. a first layer comprising a first substrate (102; 300; 400) depicting a display pattern, wherein the first substrate (102; 300; 400) includes: a first surface; a second surface opposite the first surface; and a first conductive film coating (304, 305,307; 404, 406, 408, 410, 412, 414, 416) on the second surface, and wherein the first conductive film coating (304, 305, 307; 404, 406, 408, 410, 412, 414, 416) forms the display pattern (302; 402); a first surface; a second surface opposite the first surface; and a first conductive film coating (304, 305,307; 404, 406, 408, 410, 412, 414, 416) on the second surface, and wherein the first conductive film coating (304, 305, 307; 404, 406, 408, 410, 412, 414, 416) forms the display pattern (302; 402); a second layer comprising an electrochromic polymer deposited on the second surface of the first substrate, wherein the second surface of the first substrate includes a first part coated by the first conductive film coating (304, 305, 307; 404, 406, 408, 410, 412, 414, 416) and a second part that is not coated by the first conductive film coating, wherein the electrochromic polymer is deposited onto the first and second parts of the second surface; a third layer comprising a solid state electrolyte; a fourth layer comprising a charge storage layer; a fifth layer comprising a second substrate; wherein the second layer, the third layer, and the fourth layer are interposed between the first layer and the fifth layer; the second substrate includes a third surface, a fourth surface opposite the third surface, and a second conductive film covering on the third surface; the charge storage layer is deposited on the third surface of the second substrate; the solid state electrolyte is deposited on either the electrochromic polymer or the charge storage layer; the first substrate (102; 300; 400) and the second substrate are laminated together with the second surface of the first substrate facing toward the third surface of the second substrate; and wherein, an application of a voltage between the first substrate (102; 300; 400) and the second substrate causes a change in transmission or reflectance of light through the display device such that the display pattern on the first substrate (102; 300; 400) is displayed in a transparent state, said display pattern depicting an image, and, wherein, if a reversed voltage is applied, the display device returns to a non-transparent state and no image is shown.