Electrochromic device in freely customizable color and application

An electrochromic device and color technology, applied in instruments, nonlinear optics, optics, etc., can solve problems such as not easy to apply, no texture, not beautiful enough, etc., to improve product reliability, good surface texture, and shorten life Effect

Pending Publication Date: 2018-11-20
ZHEJIANG SHANGFANG ELECTRONICS EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, electrochromic devices have a single color and no texture. For example, all-solid-state devices often have a light yellow-green color before discoloration, which is not beautiful enough, so it is not easy to be accepted in practical applications or is limited in some occasions. its application

Method used

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  • Electrochromic device in freely customizable color and application
  • Electrochromic device in freely customizable color and application
  • Electrochromic device in freely customizable color and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Such as figure 1 and 2 as shown, figure 1 It is a schematic diagram of the structure of the electrochromic device whose color can be customized arbitrarily in Example 1 before it changes color; figure 2 It is a schematic diagram of the structure of the electrochromic device whose color can be customized in Example 1 after it changes color; the electrochromic device in this embodiment is applied to the back cover of a mobile terminal (mobile phone), and various customized colors such as light blue become black, and the electrochromic The layered structure of the device is: transparent substrate layer 100 , EC stack 200 , optical film layer 300 , OCA optical adhesive layer 403 and black PET 402 . At present, six kinds of optical film layers 300 of film systems have been successfully tested, as shown in the table below.

[0064] Table 1 Light blue optical film system scheme

[0065] layers

Material

Thickness (nm)

1

TiO2

20.96

2

...

Embodiment 2

[0082] Such as image 3 and Figure 4 as shown, image 3 It is a schematic structural diagram before the color of the electrochromic device whose color can be customized in Example 2 before changing color, Figure 4 It is a structural schematic diagram of the electrochromic device whose color can be customized arbitrarily in Example 2; the electrochromic device of this embodiment is applied to the back cover of a mobile terminal (mobile phone), and the red color turns black, and the layered structure of the electrochromic device is as follows: : a transparent substrate layer 100 , an EC stack 200 , an optical film layer 300 , an OCA optical glue layer 403 and a color base layer 404 .

[0083] Table 7 Anti-reflection and anti-reflection optical film system scheme

[0084] layers

Material

Thickness (nm)

1

MgF2

92.66

2

ZrO2

131.72

3

MgF2

30.31

4

ZrO2

16.54

[0085] Before discoloration: the mobile termi...

Embodiment 3

[0088] Such as Figure 5 and Figure 6 as shown, Figure 5 It is a schematic structural diagram of the electrochromic device before the color of the embodiment 3 is arbitrarily customizable, Figure 6 It is a schematic diagram of the structure of the electrochromic device whose color can be customized in Example 3 after it changes color; the electrochromic device in this embodiment is applied to the back cover of the mobile terminal (PAD), and the blue color turns black, and the layered structure of the electrochromic device is sequentially They are: transparent substrate layer 100 , EC stack 200 , optical film layer 300 , and ink layer 405 , and the ink layer 405 of this embodiment is customized as blue ink.

[0089] Before discoloration: the mobile terminal does not power on the EC stack 200, so the incident light 600 can pass through the EC stack 200 and reach the ink layer 405. Before discoloration, the ink layer 405 is customized to be blue, and the ink layer 405 reflec...

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Abstract

The invention provides an electrochromic device in a freely customizable color and belongs to the technical field of electrochromic devices. The electrochromic device includes a transparent substratelayer, an EC stack, an optical membrane layer and/or a glue bottom layer; the transparent substrate layer is covered with the glue bottom layer, and the optical membrane layer and the EC stack are arranged in the glue bottom layer in sequence; otherwise, the transparent substrate layer is covered with the optical membrane layer, the optical membrane layer is covered with the glue bottom layer, andthe portion between the optical membrane layer and the transparent substrate layer or between the optical membrane layer and the glue bottom layer is covered with the EC stack, or the EC stack is arranged in the glue bottom layer. The electrochromic device is applied to mobile terminals, building doors and windows and household electrical appliances. A freely customized reflection effect is achieved on the surface of the electrochromic device through optical adjustment, and a product has better surface texture like metal. The optical membrane layer can protect the EC stack, the situation thatthe EC stack of the dense optical membrane layer is easily influenced by water vapor and correspondingly the service life of the EC stack is shortened is avoided, and the reliability of the product is improved greatly.

Description

technical field [0001] The invention relates to an electrochromic device whose color can be customized arbitrarily and its application, belonging to the technical field of electrochromic devices. Background technique [0002] Electrochromism refers to the reversible oxidation or reduction reaction of the material under the action of the polarity and intensity changes of the applied electric field, resulting in a reversible and stable change in the color of the material. The electrochromic device prepared by using this property can intelligently adjust the radiation of light, and can selectively absorb or reflect the external heat radiation. The electrochromic device prepared by using this property can be used in various applications that require changes in appearance and color. field. [0003] The electrochromic stack (hereinafter referred to as the EC stack) is composed of a bottom transparent conductive layer, an electrochromic layer, an ion conductive layer, an ion stora...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/157
CPCG02F1/157
Inventor 张永夫俞峰王菊王晓东周海龙
Owner ZHEJIANG SHANGFANG ELECTRONICS EQUIP
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