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A multi-layer film structure electrochromic display

An electrochromic and display technology, applied in instruments, nonlinear optics, optics, etc., can solve the problem of single variable color

Active Publication Date: 2017-10-24
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above analysis, the present invention aims to provide a continuously changing display device based on electrochromism in the visible spectrum range, in order to solve the problem of single variable color of the existing electrochromic display device

Method used

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  • A multi-layer film structure electrochromic display
  • A multi-layer film structure electrochromic display
  • A multi-layer film structure electrochromic display

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specific Embodiment approach 1

[0020] A multilayer film structure electrochromic display 100, such as figure 1 . Using any material as the substrate 10 , the bottom electrode layer 20 , the ion storage layer 30 , the electrolyte layer 40 , the one-dimensional photonic crystal color changing layer 50 , the top electrode layer 60 and the protective layer 70 are sequentially sputtered by magnetron sputtering.

[0021] The substrate 10 can be any flexible or rigid substrate, which supports the entire display; the bottom electrode layer 20 and the top electrode layer 60 can be the same or different, and are made of transparent metal oxides such as tin-doped indium oxide, fluorine-doped The ion storage layer 30 can be any electrochromic material, such as tungsten oxide, nickel oxide, titanium oxide, molybdenum oxide, vanadium pentoxide, or two of them. or a mixture of many; the electrolyte layer 40 is an electronically insulating and ionically conductive material that must be thick enough to prevent short circui...

specific Embodiment approach 2

[0023] A multilayer film structure electrochromic display 110, such as image 3 . Taking any material as the substrate 10, the magnetron sputtering method is used to sputter the ion blocking layer 11, the bottom metal electrode layer 19, the bottom electrode layer 20, the ion storage layer 30, the electrolyte layer 40, the one-dimensional photonic crystal color changing layer 50, The top electrode layer 60 , the top metal electrode layer 61 and the protective layer 70 .

[0024] The substrate 10 is a rigid glass substrate, which supports the entire display; the ion blocking layer 11 is generally composed of silicon dioxide to block sodium ions in the glass from entering the device; the bottom metal electrode layer 19 and the top metal electrode layer 61 are made of metal The bottom electrode layer 20 and the top electrode layer 60 can be the same or different, and they are made of transparent metal oxides such as tin-doped indium oxide, fluorine-doped tin oxide, aluminum-dope...

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Abstract

The invention relates to a multilayer film structure electrochromic displayer. Based on the electrochromic technology and the photonic crystal technology, two electrochromic materials are alternated to form a film, a one-dimensional photonic crystal is formed, after ions are injected into an electrochromic layer, the refractive indexes of different electrochromic materials have different changes, therefore, a photonic crystal forbidden band is changed, so that the reflectance spectrum of a device is changed, and the continuous change of colors and regulation and control over the colors are achieved.

Description

technical field [0001] The invention relates to the technical field of electrochromic materials, in particular to an electrochromic display with a multi-layer film structure and a manufacturing method thereof. Background technique [0002] Electrochromic materials can reversibly change the optical properties of the material such as reflection, transmission or absorption by changing the applied electric field. The electrochromic device only needs a small amount of power to drive. Compared with the traditional kinescope technology, it is safe, fast, and small in size. It is one of the mainstream of the new generation of display technology. At the same time, its excellent performance can also be used in smart windows, rearview mirrors, etc. [0003] Electrochromic devices generally include electrode layers, electrochromic layers, and electrolyte layers. By applying a certain voltage to the electrode, ions in the electrolyte such as lithium ions or hydrogen ions are injected a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/153G02F1/155
CPCG02F1/1525G02F1/155G02F2001/1536
Inventor 李垚张翔赵九蓬李娜吕海明田燕龙
Owner HARBIN INST OF TECH
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