Electrochromic mobile phone back cover

Abstract

The utility model discloses an electrochromic mobile phone back cover, including first substrate layer, first electrode layer, electrochromic layer, electrolyte layer, ion storage layer, second electrode layer and second substrate layer that set gradually in layers, at least one in electrochromic layer and ion storage layer is equipped with grid shape protuberant microstructure on the side surface of electrolyte layer, grid shape protuberant microstructure is embedded to electrolyte layer. This electrochromic mobile phone back cover has lower energy consumption, faster color change response speed and deeper color change effect.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone parts and accessories, and in particular to an electrochromic mobile phone back cover. Background Technology

[0002] To enhance the personalized appearance of mobile phone back covers, some manufacturers have begun using electrochromic glass. For example, Chinese patent application CN202220633539.0 discloses a high-strength, scratch-resistant electrochromic back cover, comprising a first glass substrate, a second glass substrate, and an electrochromic functional film layer located between the first and second glass substrates. The electrochromic functional film layer, from the first glass substrate to the second glass substrate, consists of a first transparent conductive layer, an electrochromic layer, an ion conductor layer, an ion storage layer, and a second transparent conductive layer. A DLC film layer is deposited on the lower surface of the first glass substrate.

[0003] However, using electrochromic glass on such a large area of ​​the back cover will inevitably increase the phone's power consumption, thereby reducing the phone's battery life. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides an electrochromic mobile phone back cover with lower energy consumption, faster color-changing response speed, and deeper color-changing effect.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution:

[0006] An electrochromic mobile phone back cover includes a first substrate layer, a first electrode layer, an electrochromic layer, an electrolyte layer, an ion storage layer, a second electrode layer, and a second substrate layer stacked sequentially. At least one of the electrochromic layer and the ion storage layer has a grid-like raised microstructure on one side surface facing the electrolyte layer, and the grid-like raised microstructure is embedded in the electrolyte layer.

[0007] Furthermore, the electrochromic layer has a first grid-like raised microstructure on one side surface facing the electrolyte layer, and the first grid-like raised microstructure is embedded in the electrolyte layer.

[0008] Furthermore, the ion storage layer has a second mesh-like raised microstructure on one side surface facing the electrolyte layer, and the second mesh-like raised microstructure is embedded in the electrolyte layer.

[0009] Furthermore, the mesh-like raised microstructure has a mesh line width of 10-20 μm, a mesh side length of 200-300 μm, and a raised height of 50-200 nm.

[0010] Furthermore, the first electrode layer and the second electrode layer are any one of indium tin oxide, zinc oxide, zinc aluminum oxide, and zinc gallium oxide, and their thicknesses are 100-300 nm.

[0011] Furthermore, the electrochromic layer is any one of tungsten trioxide, molybdenum oxide, and niobium oxide, and its thickness is 200-500 nm.

[0012] Furthermore, the electrolyte layer is any one of liquid electrolyte, gel electrolyte, or solid electrolyte, and its thickness is 100nm-100μm.

[0013] Furthermore, the ion storage layer is any one of nickel oxide, manganese oxide, polyaniline, and polypyrrole, and its thickness is 100-500 nm.

[0014] Furthermore, the electrochromic mobile phone back cover also includes a base color ink layer, which is disposed on the side surface of the first substrate layer facing away from the first electrode layer.

[0015] Furthermore, the electrochromic mobile phone back cover also includes an anti-fingerprint hydrophobic layer, which is disposed on the side surface of the second substrate layer facing away from the second electrode layer.

[0016] The present invention has the following beneficial effects: The electrochromic mobile phone back cover of the present invention increases the specific surface area of ​​the electrochromic layer and / or ion storage layer by setting the grid-like raised microstructure on the side surface of the electrochromic layer and / or ion storage layer facing the electrolyte layer. The grid-like raised microstructure embedded in the electrolyte layer can increase the contact area between the electrolyte layer and the electrochromic layer and / or ion storage layer, thereby shortening the ion migration path, reducing migration resistance, reducing driving voltage and switching time, so as to achieve lower energy consumption, faster color change response speed and deeper color change effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the stacked structure of the electrochromic mobile phone back cover provided by this utility model.

[0018] Figure 2 A schematic diagram of the stacked structure of another electrochromic mobile phone back cover provided by this utility model.

[0019] Figure 3 A schematic diagram of the stacked structure of another electrochromic mobile phone back cover provided by this utility model.

[0020] Figure 4 A three-dimensional structural diagram of the grid-like raised microstructure in the electrochromic mobile phone back cover provided by this utility model.

[0021] Figure 5 A schematic diagram of the stacked structure of another electrochromic mobile phone back cover provided by this utility model.

[0022] Figure 6 A schematic diagram of the stacked structure of another electrochromic mobile phone back cover provided by this utility model. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings. Throughout the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example 1

[0028] like Figure 3As shown, an electrochromic mobile phone back cover includes a first substrate layer 1, a first electrode layer 2, an electrochromic layer 3, an electrolyte layer 4, an ion storage layer 5, a second electrode layer 6, and a second substrate layer 7 stacked sequentially. At least one of the electrochromic layer 3 and the ion storage layer 5 has a grid-like raised microstructure 31 and 51 on one side surface facing the electrolyte layer 4, and the grid-like raised microstructure 31 and 51 are embedded in the electrolyte layer 4.

[0029] The electrochromic mobile phone back cover of this utility model increases the specific surface area of ​​the electrochromic layer 3 and / or ion storage layer 5 by setting the grid-like raised microstructures 31 and 51 on the side surface of the electrochromic layer 3 and / or ion storage layer 5 facing the electrolyte layer 4. The grid-like raised microstructures 31 and 51 embedded in the electrolyte layer 4 can increase the contact area between the electrolyte layer 4 and the electrochromic layer 3 and / or ion storage layer 5, thereby shortening the ion migration path, reducing migration resistance, reducing driving voltage and switching time, so as to achieve lower energy consumption, faster color change response speed and deeper color change effect.

[0030] Preferred, such as Figure 4 As shown, the grid-like raised microstructures 31 and 51 have a grid linewidth D of 10-20 μm, a grid side length L of 200-300 μm, and a raised height H of 50-200 nm, to balance conductivity, mechanical strength, optical transmittance, and ion transport efficiency. The grid-like raised microstructures 31 and 51 can be formed by sputtering the electrochromic layer 3 and / or the ion storage layer 5 onto the first substrate layer 1 and / or the second substrate layer 7, respectively, followed by ablation of the electrochromic layer 3 and / or the ion storage layer 5 using a femtosecond laser or a carbon dioxide laser.

[0031] The grid-like raised microstructures 31 and 51 may, but are not limited to, use triangular grids, rectangular grids or regular hexagonal grids.

[0032] In the first example, such as Figure 1 As shown, the electrochromic layer 3 has a first grid-like raised microstructure 31 on one side surface facing the electrolyte layer 4, and the first grid-like raised microstructure 31 is embedded in the electrolyte layer 4.

[0033] In the second example, such as Figure 2 As shown, the ion storage layer 5 has a second mesh-like raised microstructure 51 on one side surface facing the electrolyte layer 4, and the second mesh-like raised microstructure 51 is embedded in the electrolyte layer 4.

[0034] In the third example, such as Figure 3As shown, the electrochromic layer 3 has a first grid-like raised microstructure 31 on one side surface facing the electrolyte layer 4, and the ion storage layer 5 has a second grid-like raised microstructure 51 on one side surface facing the electrolyte layer 4. The first grid-like raised microstructure 31 and the second grid-like raised microstructure 51 are embedded in the electrolyte layer 4.

[0035] In this embodiment, the first electrode layer 2 and the second electrode layer 6 can be, but are not limited to, any one of indium tin oxide, zinc oxide, zinc aluminum oxide, and zinc gallium oxide, and both have a thickness of 100-300 nm; the electrochromic layer 3 is any one of tungsten trioxide, molybdenum oxide, and niobium oxide, and its thickness (excluding the grid-like raised microstructures 31 and 51) is 200-500 nm; the electrolyte layer 4 is any one of liquid electrolyte, gel electrolyte, and solid electrolyte, and its thickness is 100 nm-100 μm; the ion storage layer 5 is any one of nickel oxide, manganese oxide, polyaniline, and polypyrrole, and its thickness (excluding the grid-like raised microstructures 31 and 51) is 100-500 nm.

[0036] The first substrate layer 1 and the second substrate layer 7 can be glass substrates or plastic substrates.

[0037] Example 2

[0038] As an optimization of Embodiment 1, in this embodiment, such as Figure 5 As shown, the electrochromic mobile phone back cover also includes a base color ink layer 8, which is disposed on the side surface of the first substrate layer 1 facing away from the first electrode layer 2.

[0039] The electrochromic mobile phone back cover of this utility model has a base color ink layer 8 disposed on the bottom surface of the first substrate layer 1. When any of the functional layers of the first electrode layer 2, electrochromic layer 3, electrolyte layer 4, ion storage layer 5, and second electrode layer 6 is damaged and the color-changing function cannot be used, or when the color-changing function is actively turned off in energy-saving mode, it presents an appearance color consistent with the base color ink layer 8.

[0040] The base color ink layer 8 can be a solid color ink such as black, blue or red, or a gradient color ink, or other inks with special visual effects, and its thickness is 4-14μm.

[0041] Example 3

[0042] As an optimization of Embodiment 1 or Embodiment 2, in this embodiment, such as Figure 6 As shown, the electrochromic mobile phone back cover also includes an anti-fingerprint hydrophobic layer 9, which is disposed on the side surface of the second substrate layer 7 facing away from the second electrode layer 6.

[0043] The electrochromic mobile phone back cover of this utility model has a fingerprint-resistant hydrophobic layer 9 on the front side of the second substrate layer 7 to prevent fingerprint grease, dust, water droplets, etc. from remaining on the second substrate layer 7, thereby maintaining the cleanliness of the back cover.

[0044] The anti-fingerprint hydrophobic layer 9 is a fluoride film layer, such as fluorinated siloxane, with a thickness of 50-100nm.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present utility model, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the present utility model.

Claims

1. An electrochromic mobile phone back cover, comprising a first substrate layer, a first electrode layer, an electrochromic layer, an electrolyte layer, an ion storage layer, a second electrode layer, and a second substrate layer stacked sequentially, characterized in that, At least one of the electrochromic layer and the ion storage layer has a grid-like raised microstructure on one side surface facing the electrolyte layer, the grid-like raised microstructure being embedded within the electrolyte layer.

2. The electrochromic mobile phone back cover according to claim 1, characterized in that, The electrochromic layer has a first grid-like raised microstructure on one side surface facing the electrolyte layer, and the first grid-like raised microstructure is embedded in the electrolyte layer.

3. The electrochromic mobile phone back cover according to claim 1 or 2, characterized in that, The ion storage layer has a second grid-like raised microstructure on one side surface facing the electrolyte layer, and the second grid-like raised microstructure is embedded in the electrolyte layer.

4. The electrochromic mobile phone back cover according to claim 1, characterized in that, The mesh-like raised microstructure has a mesh line width of 10-20 μm, a mesh side length of 200-300 μm, and a raised height of 50-200 nm.

5. The electrochromic mobile phone back cover according to claim 1, characterized in that, The first electrode layer and the second electrode layer are any one of indium tin oxide, zinc oxide, zinc aluminum oxide, and zinc gallium oxide, and the thickness of both is 100-300 nm.

6. The electrochromic mobile phone back cover according to claim 1, characterized in that, The electrochromic layer is any one of tungsten trioxide, molybdenum oxide, and niobium oxide, and its thickness is 200-500 nm.

7. The electrochromic mobile phone back cover according to claim 1, characterized in that, The electrolyte layer is any one of liquid electrolyte, gel electrolyte, or solid electrolyte, and its thickness is 100nm-100μm.

8. The electrochromic mobile phone back cover according to claim 1, characterized in that, The ion storage layer is any one of nickel oxide, manganese oxide, polyaniline, and polypyrrole, and its thickness is 100-500 nm.

9. The electrochromic mobile phone back cover according to claim 1, characterized in that, The electrochromic mobile phone back cover also includes a base color ink layer, which is disposed on the side surface of the first substrate layer facing away from the first electrode layer.

10. The electrochromic mobile phone back cover according to claim 1, characterized in that, The electrochromic mobile phone back cover also includes a fingerprint-resistant hydrophobic layer, which is disposed on the side surface of the second substrate layer facing away from the second electrode layer.

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