Electrochromic device including metal lines

Abstract

An electrochromic device includes: a first electrode unit including a first electrode layer, a plurality of spaced apart metal lines that are formed on the first electrode layer, and a plurality of insulator strips that cover the metal lines, respectively; a second electrode unit spaced apart from the first electrode unit and including a second electrode layer; and an electrochromic unit sandwiched between the first and second electrode units and including an electrochromic layer and an electrolyte layer. The electrochromic layer is formed on the first electrode layer. The arrangement of the first metal lead can be used to increase the conductivity of the first transparent conductive layer, and therefore the color-changing speed of the first electrochromic layer can be improved.

Description

technical field [0001] The invention relates to an electrochromic structure, in particular to an electrochromic structure which can increase the color changing speed. Background technique [0002] Electrochromic materials use the optical properties of materials (such as reflectivity, transmittance, absorptivity, etc.) to undergo a stable and reversible color change reaction under the action of an external electric field. The principle of electrochromism is that the electrochromic material undergoes a redox reaction under the action of an external electric field, and the color of the electrochromic material changes through the process of gaining and losing electrons. According to different environments and needs, electrochromic materials can be widely used in various fields such as construction industry, automobile industry, aerospace industry, etc. skylights, static graphic billboards, digital displays, etc. [0003] refer to figure 1 , is an existing electrochromic struc...

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Problems solved by technology

[0004] However, the color change speed of the electrochromic layer 13 is related to the speed at which the electrons diffuse into the electrochromic layer 13. If it is applied to a large-area electrochromic device, the time for electrons to diffuse to the entire electrochromic layer 13 is also limited. The longer it is, the larger the electrochromic device is likely to have problems such as slow discoloration and poor uniformity, which causes inconvenience in practical application.

Furthermore, most of the existing electrochromic devices use glass as the substrate. In actual use, they are often limited by the material of the substrate and cannot be bent arbitrarily, which limits their use.

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