阅读说明：本技术 一种电致变色镜片及其制备工艺 (Electrochromic lens and preparation process thereof ) 是由 吴炳照 于 2019-10-08 设计创作，主要内容包括：本发明公开了一种电致变色镜片及其制备工艺,所述电致变色镜片包括第一玻璃基板、第二玻璃基板,以及设置于所述第一玻璃基板和第二玻璃基板之间依次层叠的第一导电膜、还原显色层、液体电解质、氧化显色层和第二导电膜,所述还原显色层和氧化显色层设置有多个隔板,所述隔板之间形成用于包围和固定液体电解质的分隔槽,所述隔板的上下两端之间通过内凹的圆弧过渡。本发明提供的电致变色镜片在还原显色层和氧化显色层上设置分隔槽,由于液体电解质被分隔槽包围和固定,可以解决液体电解质流动导致分布不均匀而影响镜片显示效果的问题。(The invention discloses an electrochromic lens and a preparation process thereof, wherein the electrochromic lens comprises a first glass substrate, a second glass substrate, a first conductive film, a reduction color development layer, a liquid electrolyte, an oxidation color development layer and a second conductive film which are sequentially stacked between the first glass substrate and the second glass substrate, wherein a plurality of clapboards are arranged on the reduction color development layer and the oxidation color development layer, a separation groove for surrounding and fixing the liquid electrolyte is formed between the clapboards, and the upper end and the lower end of each clapboard are in concave arc transition. According to the electrochromic lens provided by the invention, the separation grooves are arranged on the reduction color development layer and the oxidation color development layer, and the liquid electrolyte is surrounded and fixed by the separation grooves, so that the problem that the display effect of the lens is influenced due to uneven distribution caused by the flowing of the liquid electrolyte can be solved.)

1. An electrochromic lens, characterized in that: the liquid electrolyte separation device comprises a first glass substrate, a second glass substrate, a first conductive film, a reduction and color development layer, a liquid electrolyte, an oxidation and color development layer and a second conductive film, wherein the first conductive film, the reduction and color development layer, the liquid electrolyte, the oxidation and color development layer and the second conductive film are sequentially stacked between the first glass substrate and the second glass substrate, a plurality of partition plates are arranged on the reduction and color development layer and the oxidation and color development layer, partition grooves used for surrounding and fixing the liquid electrolyte are formed between the partition plates, and the upper end and the lower end of each partition plate are.

2. An electrochromic lens according to claim 1, characterized in that: the depth of the separation groove is 30 to 60 μm.

3. An electrochromic lens according to claim 1, characterized in that: and a reflecting layer is arranged at the bottom of the separation groove.

4. An electrochromic lens according to claim 3, characterized in that: the thickness of the reflecting layer is 10nm to 80 nm.

5. An electrochromic lens according to claim 3, characterized in that: the reflectivity of the reflecting layer is not lower than 85%.

6. An electrochromic lens according to claim 1, characterized in that: the reduction color development layer is a tungsten oxide color-changing film.

7. An electrochromic lens according to claim 1, characterized in that: the oxidation color development layer is a nickel oxide color-changing film.

8. An electrochromic lens according to claim 1, characterized in that: the first glass substrate and the second glass substrate can be tempered glass, acrylic plates or PET plates.

9. An electrochromic lens according to claim 1, characterized in that: the first conductive film and the second conductive film can be made of ITO, AZO or FTO.

10. The preparation process of the electrochromic lens is characterized by comprising the following steps of:

step one, forming a first conductive film on a first glass substrate;

step two, forming a second conductive film on a second glass substrate;

forming a reduction color development layer on the first conductive film;

forming an oxidation layer on the second conductive film;

fifthly, forming a separation groove on the reduction color development layer and the oxidation color development layer;

sixthly, forming a reflecting layer at the bottom of the separation groove;

step seven, injecting liquid electrolyte into the separation groove;

and step eight, the reduction color development layer and the oxidation color development layer are combined.

Technical Field

The invention relates to the technical field of electrochromism, in particular to an electrochromism lens and a preparation process thereof.

Background

Electrochromism is a phenomenon in which optical properties (reflectivity, transmittance, absorption, and the like) of a material undergo a stable and reversible color change under the action of an applied electric field, and is visually represented as a reversible change in color and transparency. The effect has the advantages of large modulation range, continuous change, memory function, low power consumption and the like, so that development and development of large-area display devices, automobile rearview mirrors, building glass and the like by utilizing the effect become hot spots of wide attention.

With the development of technology, consumers have increasingly demanded not only diversification of functions but also appearance, texture, and the like of products, and the liquid electrolyte of the current electrochromic lens is distributed in the whole area between the conductive films, and since there is no space in the area and the liquid electrolyte has fluidity, the liquid electrolyte is easily distributed unevenly under heat and pressure, and the display effect of the lens is affected, there is a room for improvement.

Disclosure of Invention

The invention aims to provide an electrochromic lens and a preparation process thereof, and aims to solve the technical problem that the display effect of the lens is influenced due to uneven distribution caused by the flowing of a liquid electrolyte under the condition that the electrochromic lens in the prior art is heated and pressed.

The technical scheme adopted by the invention for solving the technical problems is as follows:

an electrochromic lens comprises a first glass substrate, a second glass substrate, a first conductive film, a reduction and color development layer, a liquid electrolyte, an oxidation and color development layer and a second conductive film, wherein the first conductive film, the reduction and color development layer, the liquid electrolyte, the oxidation and color development layer and the second conductive film are sequentially stacked between the first glass substrate and the second glass substrate, a plurality of partition plates are arranged on the reduction and color development layer and the oxidation and color development layer, partition grooves used for surrounding and fixing the liquid electrolyte are formed between the partition plates, and the upper end and the lower end of each partition plate are in inward-concave arc transition.

As an improvement of the technical scheme, the depth of the separation groove is 30-60 μm.

Further, a reflective layer is arranged at the bottom of the separation groove.

Further, the thickness of the reflective layer is 10nm to 80 nm.

Further, the reflectivity of the reflecting layer is not lower than 85%.

Further, the reduction color development layer is a tungsten oxide color-changing film.

Further, the oxidation color development layer is a nickel oxide color-changing film.

Further, the first glass substrate and the second glass substrate may be tempered glass, acrylic sheets, or PET sheets.

Further, the first conductive film and the second conductive film may be made of ITO, AZO, or FTO.

The invention also provides a preparation process of the electrochromic lens, which is characterized by comprising the following steps:

step one, forming a first conductive film on a first glass substrate;

step two, forming a second conductive film on a second glass substrate;

forming a reduction color development layer on the first conductive film;

forming an oxidation layer on the second conductive film;

fifthly, forming a separation groove on the reduction color development layer and the oxidation color development layer;

sixthly, forming a reflecting layer at the bottom of the separation groove;

step seven, injecting liquid electrolyte into the separation groove;

and step eight, the reduction color development layer and the oxidation color development layer are combined.

The invention has the beneficial effects that: the electrochromic lens is provided with the separation grooves on the reduction color development layer and the oxidation color development layer, and the liquid electrolyte is surrounded and fixed by the separation grooves, so that the problem that the display effect of the lens is influenced due to uneven distribution caused by the flowing of the liquid electrolyte can be solved; the upper end and the lower end of the clapboard are transited through the concave arc, so that the liquid electrolyte can be better fixed under the action of liquid tension.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is a schematic cross-sectional view of an electrochromic lens of the invention;

FIG. 2 is a schematic cross-sectional structure of a color reduction layer of an electrochromic lens according to the present invention;

FIG. 3 is a schematic cross-sectional structure of the oxidation color developing layer of the electrochromic lens of the invention.

Detailed Description

Referring to fig. 1, 2, and 3, an electrochromic lens includes: a first glass substrate 10 and a second glass substrate 11, wherein a first conductive film 20, a reduction-and-color-development layer 21, a liquid electrolyte 22, an oxidation-and-color-development layer 23, and a second conductive film 24 are sequentially disposed in a laminated manner between the first glass substrate 10 and the second glass substrate 11. The first glass substrate 10 and the second glass substrate 11 may be tempered glass, acrylic plates, or PET plates, the first conductive film 20 and the second conductive film 24 may be made of ITO (indium tin oxide), AZO (AZO compound), or FTO (tin oxide), the color reduction layer 21 is a tungsten oxide color changing film, and the color oxidation layer 23 is a nickel oxide color changing film.

The reduction and oxidation layers 21, 23 are provided with a plurality of separators 28, and a separation groove 25 for surrounding and fixing the liquid electrolyte is formed between the separators 28. The upper and lower ends of the partition plate 28 are thick, the middle section is thin, and the upper and lower ends of the partition plate 28 are in concave arc transition. The liquid electrolyte 22 is placed in the separation tank 25, surrounded and fixed by the separation tank 25. The depth of the separation groove 25 is 30 μm to 60 μm, and the specific dimension can be adjusted accordingly as required.

The bottom of the separation groove 25 is provided with a reflecting layer 26, the material of the reflecting layer is a mixture of Ag and Au, the thickness of the reflecting layer is 10nm to 80nm, and the reflectivity is not lower than 85%. Therefore, the color changing efficiency of the lens is improved, and the lens has higher reflectivity and stability.

The preparation of the electrochromic lens of the invention comprises the following steps:

forming a first conductive film 20 on the first glass substrate 10;

forming a second conductive film 24 on the second glass substrate 11;

forming a reduction-and-development layer 21 on the first conductive film 20;

forming an oxidation layer 23 on the second conductive film 24;

forming a separation groove 25 on the reduction and development layer 21 and the oxidation and development layer 23, and adopting a chemical thinning method or a mechanical thinning method;

forming a reflective layer 26 on the bottom of the separation grooves 25;

injecting a liquid electrolyte 22 into the divided cell;

and matching the reduction color development layer 21 with the oxidation color development layer 23, and finishing the preparation of the electrochromic lens.

In summary, the electrochromic lens provided by the invention is provided with the separation grooves on the reduction color development layer and the oxidation color development layer, and the liquid electrolyte is surrounded and fixed by the separation grooves, so that the problem that the display effect of the lens is affected due to uneven distribution caused by the flow of the liquid electrolyte can be solved.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.