Patent ID: 9164347
Filing Date: 2015-10-20
Classification: B82Y,G02F

Abstract:
1. A display device, comprising: a first substrate; a second substrate facing the first substrate; a first electrode formed on the first substrate; a second electrode formed on the second substrate; an electrochromic layer provided between the first electrode and the second electrode and containing an oxidation coloring-type dye and a reduction coloring-type dye; a first semiconductor nanoelectrode formed on the first electrode and composed of semiconductor nanoparticles; and a second semiconductor nanoelectrode formed on the second electrode and composed of semiconductor nanoparticles, wherein the oxidation coloring-type dye is adsorbed to the first semiconductor nanoelectrode, and the reduction coloring-type dye is adsorbed to the second semiconductor nanoelectrode, the electrochromic layer includes an oxidation-type electrochromic layer containing the oxidation coloring-type dye, and a reduction-type electrochromic layer containing the reduction coloring-type dye, the oxidation coloring-type dye and the reduction coloring-type dye in a pixel have different light absorption wavelengths in a colored state, the oxidation-type electrochromic layer includes a first oxidation-type electrochromic region containing a single oxidation-type coloring material and extending over two adjacent pixels in a row direction, the reduction-type electrochromic layer includes a first reduction-type electrochromic region containing a single reduction-type coloring material and extending over two adjacent pixels in a row direction, the oxidation-type electrochromic layer includes a second oxidation-type electrochromic region which has two portions of oxidation-type coloring materials having different light absorption wavelengths in a colored state and corresponding to two adjacent pixels in the row direction, the reduction-type electrochromic layer includes a second reduction-type electrochromic region which has two portions of reduction-type coloring materials having different light absorption wavelengths in a colored state and corresponding to two adjacent pixels in the row direction, and the electrochromic layer is formed so that the first oxidation-type electrochromic region faces the second reduction-type electrochromic region, and the first reduction-type electrochromic region faces the second oxidation-type electrochromic region.