Gel electrochromic adhesive film device

Abstract

The utility model discloses a gel electrochromic adhesive film device which comprises a first flexible substrate, a second flexible substrate, a first ITO film layer, a second ITO film layer and an electrochromic layer. Wherein the first ITO film layer is arranged on the front end face of the first flexible substrate, a left half ring electrode is arranged on the front end face of the first ITO film layer, the second ITO film layer is arranged on the rear end face of the second flexible substrate, and a right half ring electrode is arranged on the rear end face of the second ITO film layer. The electrochromism layer is arranged between the first ITO film layer and the second ITO film layer in a stacked mode, and the electrochromism layer comprises an electrochromism gel film and frame glue surrounding the periphery of the electrochromism gel film. The thickness uniformity of the electrochromic layer during bending can be ensured by using the electrochromic gel film, so that the stable color changing effect can be ensured, the color changing uniformity is improved, and the electrochromic gel film can be applied to electrochromic glasses to prevent objects seen by a wearer from being abnormal.

Description

Technical Field

[0001] This utility model relates to a gel electrochromic film device. Background Technology

[0002] Currently, electrochromic devices typically consist of two conductive glass plates and an electrochromic solution filled between them. For example, Chinese patent CN220252354U discloses a flat electrochromic device. In some products, such as electrochromic glasses, flexible electrochromic devices that can be bent into curved surfaces are required. These flexible devices usually use two flexible substrates instead of conductive glass, with the electrochromic solution filled between them. However, due to the relatively weak support of the flexible substrates and the fluidity of the electrochromic solution, bending the flexible electrochromic device into a curved surface can easily lead to uneven distribution of the solution, resulting in uneven thickness of the electrochromic layer after bending, leading to poorer and less uniform color-changing effects. Furthermore, applying such flexible electrochromic devices to electrochromic glasses can cause abnormal vision for the wearer. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a gel electrochromic film device. It uses an electrochromic gel film to ensure the uniformity of the thickness of the electrochromic layer when bent, thereby ensuring the stability of the color-changing effect, improving the uniformity of the color change, and can be applied in electrochromic glasses to prevent the wearer from seeing abnormal things.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a gel electrochromic film device, comprising a first flexible substrate, a second flexible substrate, a first ITO film layer, a second ITO film layer, and an electrochromic layer;

[0005] The first ITO film layer is disposed on the front end surface of the first flexible substrate, and a left half-circle electrode is provided on the front end surface of the first ITO film layer;

[0006] The second ITO film layer is disposed on the rear end face of the second flexible substrate, and a right half-circle electrode is provided on the rear end face of the second ITO film layer;

[0007] The electrochromic layer is stacked between the first ITO film layer and the second ITO film layer. The electrochromic layer includes an electrochromic gel film stacked between the first ITO film layer and the second ITO film layer and a border adhesive surrounding the electrochromic gel film. The border adhesive covers the left half-circle electrode and the right half-circle electrode.

[0008] Furthermore, the left half-circle electrode is a copper target plated on the first ITO film layer, and the right half-circle electrode is a copper target plated on the second ITO film layer.

[0009] Further, a specific structure of the left half-circle electrode and the right half-circle electrode is provided, wherein one end of the left half-circle electrode has a first connecting portion;

[0010] One end of the right half-circle electrode has a second connecting portion that overlaps with the first connecting portion;

[0011] The left half-circle electrode also has a first extension portion that is connected to the first connection portion and extends half a circle to the left from the first connection portion.

[0012] The right half-circle electrode also has a second extension portion that is connected to the second connection portion and extends half a circle to the right from the second connection portion.

[0013] Furthermore, the first extension extends half a circle along the edge of the first flexible substrate, and the second extension extends half a circle along the edge of the second flexible substrate.

[0014] Furthermore, the first flexible substrate has a first protrusion, and the second flexible substrate has a second protrusion that overlaps with the first protrusion;

[0015] The first ITO film layer has a first convex film portion extending to the first protrusion, and the second ITO film layer has a second convex film portion extending to the second protrusion;

[0016] The first connecting portion is disposed on the first convex membrane portion, and the second connecting portion is disposed on the second convex membrane portion.

[0017] Furthermore, the gel electrochromic film device also includes an FPC circuit board, the first end of which extends between the first connecting portion and the second connecting portion and is electrically connected to the first connecting portion and the second connecting portion, respectively.

[0018] Furthermore, the first end of the FPC circuit board is electrically connected to the first connecting part and the second connecting part by means of conductive silver paste.

[0019] Furthermore, the first flexible substrate has a first protrusion, the second flexible substrate has a second protrusion overlapping the first protrusion, the first ITO film layer has a first convex film extending to the first protrusion, the second ITO film layer has a second convex film extending to the second protrusion, the first connecting portion is disposed on the first convex film, and the second connecting portion is disposed on the second convex film.

[0020] The first end of the FPC circuit board is also glued and fixed between the first protrusion and the second protrusion.

[0021] Furthermore, the width of both the first extension and the second extension is 1.2 mm.

[0022] Furthermore, the thickness of both the first flexible substrate and the second flexible substrate is 0.12 mm.

[0023] After adopting the above technical solution, the gel electrochromic film device of this application uses a first flexible substrate and a second flexible substrate, so it can be bent into a curved surface. The electrochromic gel film is used in the electrochromic layer. The electrochromic gel film does not flow when bent, so it will not be unevenly distributed, thereby ensuring the uniformity of the thickness of the electrochromic layer when bent, thus ensuring the stability of the color-changing effect and improving the uniformity of color changing. When applied in electrochromic glasses, it can prevent the wearer from seeing abnormal things. Attached Figure Description

[0024] Figure 1 This is an exploded view of the gel electrochromic film device of this utility model;

[0025] Figure 2 This is a perspective view of the gel electrochromic film device of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the gel electrochromic film device of this utility model;

[0027] Figure 4 This is a side sectional view of the gel electrochromic film device of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the left half-circle electrode on the first ITO film layer of this utility model;

[0029] Figure 6 This is a schematic diagram of the right half-circle electrode on the second ITO film layer of this utility model;

[0030] In the figure: 1. First flexible substrate; 2. Second flexible substrate; 3. First ITO film layer; 4. Second ITO film layer; 5. Left half-circle electrode; 6. Right half-circle electrode; 7. Electrochromic gel film; 8. Frame adhesive; 9. First connecting part; 10. Second connecting part; 11. First extension part; 12. Second extension part; 13. First protrusion part; 14. Second protrusion part; 15. First convex film part; 16. Second convex film part; 17. FPC circuit board. Detailed Implementation

[0031] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0032] like Figures 1-6 As shown, a gel electrochromic film device includes a first flexible substrate 1, a second flexible substrate 2, a first ITO film layer 3, a second ITO film layer 4, and an electrochromic layer;

[0033] The first ITO film layer 3 is disposed on the front end surface of the first flexible substrate 1, and the front end surface of the first ITO film layer 3 is provided with a left half-circle electrode 5.

[0034] The second ITO film layer 4 is disposed on the rear end surface of the second flexible substrate 2, and a right half-circle electrode 6 is disposed on the rear end surface of the second ITO film layer 4.

[0035] The electrochromic layer is stacked between the first ITO film layer 3 and the second ITO film layer 4. The electrochromic layer includes an electrochromic gel film 7 stacked between the first ITO film layer 3 and the second ITO film layer 4, and a border adhesive 8 surrounding the electrochromic gel film 7. The border adhesive 8 covers the left half-circle electrode 5 and the right half-circle electrode 6. Specifically, the gel electrochromic film device of this embodiment uses a first flexible substrate 1 and a second flexible substrate 2, thus allowing it to be bent into a curved surface. The electrochromic gel film 7 is used in the electrochromic layer. The electrochromic gel film 7 does not flow when bent, thus preventing uneven distribution and ensuring the uniformity of the electrochromic layer thickness during bending. This ensures the stability of the color-changing effect and improves the uniformity of the color change. When applied to electrochromic glasses, it can prevent the wearer from seeing abnormalities. The border adhesive 8 can be a UV adhesive.

[0036] Specifically, the left half-circle electrode 5 is a copper target material plated on the first ITO film layer 3, and the right half-circle electrode 6 is a copper target material plated on the second ITO film layer 4.

[0037] like Figures 1-6 As shown, one end of the left half-circle electrode 5 has a first connecting portion 9;

[0038] One end of the right half-circle electrode 6 has a second connecting portion 10 that overlaps with the first connecting portion 9;

[0039] The left half-circle electrode 5 also has a first extension 11 that is connected to the first connecting part 9 and extends half a circle to the left from the first connecting part 9.

[0040] The right half-circle electrode 6 also has a second extension 12 connected to the second connecting portion 10 and extending half a circle to the right from the second connecting portion 10. Specifically, the structure of the left half-circle electrode 5 can increase the conductivity between the left half-circle electrode 5 and the first ITO film layer 3, and the structure of the right half-circle electrode 6 can increase the conductivity between the right half-circle electrode 6 and the second ITO film layer 4, thereby reducing the energy loss during current transmission and allowing more energy to be used to drive the electrochromic gel film 7 to undergo a color-changing reaction, thus improving the color-changing response speed. In addition, the left half-circle electrode 5 and the right half-circle electrode 6 can also make the current more uniformly distributed, making the electric field more uniformly distributed from both ends to the middle, reducing the intensity difference of the electric field, avoiding the phenomenon of uneven local color change, and further ensuring the consistency of the color-changing effect in each area.

[0041] like Figure 3 , 5 As shown in Figures 6 and 7, the first extension 11 can extend half a circle along the edge of the first flexible substrate 1, and the second extension 12 can extend half a circle along the edge of the second flexible substrate 2. In some embodiments, the first extension 11 and the second extension 12 can extend half a circle along an arc path, a square path, or a path of any shape, and the shapes of the first flexible substrate 1, the second flexible substrate 2, the first ITO film layer 3, and the second ITO film layer 4 can completely overlap.

[0042] like Figures 1-6 As shown, the first flexible substrate 1 has a first protrusion 13, and the second flexible substrate 2 has a second protrusion 14 that overlaps with the first protrusion 13.

[0043] The first ITO film layer 3 has a first convex film portion 15 extending to the first protrusion 13, and the second ITO film layer 4 has a second convex film portion 16 extending to the second protrusion 14.

[0044] The first connecting portion 9 is disposed on the first convex membrane portion 15, and the second connecting portion 10 is disposed on the second convex membrane portion 16.

[0045] like Figures 1-6 As shown, the gel electrochromic film device may further include an FPC circuit board 17, the first end of which extends between the first connecting portion 9 and the second connecting portion 10 and is electrically connected to the first connecting portion 9 and the second connecting portion 10 respectively; specifically, the PFC circuit board, also known as a flexible circuit board, is used to supply power to the left half-circle electrode 5 and the right half-circle electrode 6.

[0046] In this embodiment, the first end of the FPC circuit board 17 is electrically connected to the first connecting portion 9 and the second connecting portion 10 respectively by conductive silver paste. The first end of the FPC circuit board 17 is also fixed between the first protrusion 13 and the second protrusion 14 by adhesive. Specifically, the second end of the FPC circuit board 17 can be connected to an external circuit by soldering wires. The specific structure of the FPC circuit board 17 is prior art. Both ends of the FPC circuit board 17 are respectively provided with gold finger pad connection ports. More specifically, the first end of the FPC circuit board 17 is first electrically connected to the first connecting portion 9 and the second connecting portion 10 respectively by conductive silver paste, and then the first end of the FPC circuit board 17 is reinforced and fixed between the first protrusion 13 and the second protrusion 14 by adhesive to enhance the firmness of the connection of the FPC circuit board 17. The adhesive can be UV adhesive.

[0047] In this embodiment, the width of both the first extension 11 and the second extension 12 is 1.2 mm, and the thickness of both the first flexible substrate 1 and the second flexible substrate 2 is 0.12 mm. Specifically, the first flexible substrate 1 and the second flexible substrate 2 are existing technologies well known to those skilled in the art, and will not be described in detail in this embodiment. Using the first flexible substrate 1 and the second flexible substrate 2 allows for adaptation to surfaces of different shapes and allows for bending, resulting in stronger impact resistance. Combined with the electrochromic gel film 7, it can reduce damage caused by external impacts or drops. It can be mass-produced using roll-to-roll processing technology, resulting in a simple and efficient production method, higher yield, and lower production costs.

[0048] In summary, the gel electrochromic film device of this application uses a first flexible substrate 1 and a second flexible substrate 2, thus it can be bent into a curved surface. The electrochromic gel film 7 is used in the electrochromic layer. The electrochromic gel film 7 does not flow when bent, so it does not have uneven distribution, thereby ensuring the uniformity of the thickness of the electrochromic layer when bent, thus ensuring the stability of the color-changing effect and improving the uniformity of the color change. When applied in electrochromic glasses, it can prevent the wearer from seeing abnormal things.

[0049] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gel electrochromic gellam device, characterized in that, The device comprises a first flexible substrate (1), a second flexible substrate (2), a first ITO film layer (3), a second ITO film layer (4) and an electrochromic layer. The first ITO film layer (3) is arranged on the front end surface of the first flexible substrate (1), and a left half-circle electrode (5) is arranged on the front end surface of the first ITO film layer (3). The second ITO film layer (4) is arranged on the rear end surface of the second flexible substrate (2), and a right half-circle electrode (6) is arranged on the rear end surface of the second ITO film layer (4). The electrochromic layer is arranged between the first ITO film layer (3) and the second ITO film layer (4), and comprises an electrochromic gel film (7) arranged between the first ITO film layer (3) and the second ITO film layer (4), and a frame adhesive (8) arranged around the periphery of the electrochromic gel film (7), which covers the left half-circle electrode (5) and the right half-circle electrode (6).

2. The gel electrochromic spand device according to claim 1, characterized in that, The left half-circle electrode (5) is a copper target material plated on the first ITO film layer (3), and the right half-circle electrode (6) is a copper target material plated on the second ITO film layer (4).

3. The gel electrochromic film device according to claim 1, wherein One end of the left half-circle electrode (5) has a first connecting portion (9); One end of the right half-circle electrode (6) has a second connecting portion (10) overlapping the first connecting portion (9); The left half-circle electrode (5) further has a first extension portion (11) connected to the first connecting portion (9) and extending leftward by half a circle from the first connecting portion (9); The right half-circle electrode (6) further has a second extension portion (12) connected to the second connecting portion (10) and extending rightward by half a circle from the second connecting portion (10).

4. The gel electrochromic spand film device according to claim 3, characterized in that, The first extension portion (11) extends along the edge of the first flexible substrate (1) by half a circle, and the second extension portion (12) extends along the edge of the second flexible substrate (2) by half a circle.

5. The gel electrochromic film device according to claim 3, wherein The first flexible substrate (1) has a first protruding portion (13), and the second flexible substrate (2) has a second protruding portion (14) overlapping the first protruding portion (13); The first ITO film layer (3) has a first protruding film portion (15) extending to the first protruding portion (13), and the second ITO film layer (4) has a second protruding film portion (16) extending to the second protruding portion (14); The first connecting portion (9) is arranged on the first protruding film portion (15), and the second connecting portion (10) is arranged on the second protruding film portion (16).

6. The gel electrochromic spand film device of claim 3, wherein, An FPC circuit board (17) is further included, and a first end portion of the FPC circuit board (17) extends to between the first connecting portion (9) and the second connecting portion (10) and is electrically connected to the first connecting portion (9) and the second connecting portion (10), respectively.

7. The gel electrochromic spand film device according to claim 6, characterized in that, The first end of the FPC circuit board (17) is electrically connected with the first connecting part (9) and the second connecting part (10) respectively by conductive silver paste.

8. The gel electrochromic film device according to claim 7, characterized in that, The first flexible substrate (1) has a first protruding part (13), the second flexible substrate (2) has a second protruding part (14) overlapping the first protruding part (13), the first ITO film layer (3) has a first protruding film part (15) extending to the first protruding part (13), the second ITO film layer (4) has a second protruding film part (16) extending to the second protruding part (14), the first connecting part (9) is arranged on the first protruding film part (15), and the second connecting part (10) is arranged on the second protruding film part (16). The first end of the FPC circuit board (17) is further fixed between the first protruding part (13) and the second protruding part (14) by glue.

9. The gel electrochromic spand film device of claim 3, wherein, The width of the first extending part (11) and the second extending part (12) is 1.2 mm.

10. The gel electrochromic spand device of claim 1, wherein, The thickness of the first flexible substrate (1) and the second flexible substrate (2) is 0.12 mm.

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