Ink antibacterial cover plate and mobile terminal

Abstract

The utility model discloses a printing ink antibacterial cover plate which comprises a cover plate base layer and an appearance printing ink layer, and the appearance printing ink layer is arranged on the lower surface of the cover plate base layer. The ink antibacterial cover plate further comprises a nano-silver antibacterial layer, and the nano-silver antibacterial layer is arranged on the lower surface of the appearance ink layer. According to the ink antibacterial cover plate, the appearance of the appearance ink layer and the attaching stability can be improved. The utility model further discloses a mobile terminal which comprises the ink antibacterial cover plate.

Description

Technical Field

[0001] This utility model relates to the field of electronic accessories, and in particular to an ink antibacterial cover plate and a mobile terminal. Background Technology

[0002] With the improvement of people's living standards, mobile terminals such as mobile phones have become indispensable daily necessities. These mobile terminals generally include a cover plate to protect the mobile terminal body or enhance its appearance.

[0003] In the prior art, the lower surface of the cover plate is screen-printed with an appearance ink layer to form the appearance pattern of the cover plate. During terminal assembly, the cover plate needs to be coated with adhesive on its appearance ink layer and then bonded and fixed to the mid-frame bracket of the mobile terminal using the adhesive. Due to the instability of the bonding process, gaps exist between the cover plate and the mid-frame bracket of some mobile terminals. Bacteria and other microorganisms can grow in these gaps, decomposing the organic components in the appearance ink layer, causing changes in the color and viscosity of the appearance ink layer, thereby affecting the appearance and bonding stability. Utility Model Content

[0004] To address the shortcomings of the prior art, this invention provides an antibacterial ink cover plate, which can improve the appearance and adhesion stability of the ink layer.

[0005] This utility model also provides a mobile terminal, including the above-mentioned ink antibacterial cover plate.

[0006] The technical problem to be solved by this utility model is achieved through the following technical solution:

[0007] An antibacterial ink cover plate includes a cover plate base layer and an outer ink layer, wherein the outer ink layer is disposed on the lower surface of the cover plate base layer; the antibacterial ink cover plate further includes a nano-silver antibacterial layer, wherein the nano-silver antibacterial layer is disposed on the lower surface of the outer ink layer.

[0008] Furthermore, the cover plate base layer includes a visible area and a border area, the border area surrounding the periphery of the visible area; the appearance ink layer and the nano-silver antibacterial layer only cover the border area of ​​the cover plate base layer, while avoiding the border area of ​​the cover plate base layer.

[0009] Furthermore, the appearance ink layer includes a thermochromic ink layer and a constant base color ink layer stacked together. The thermochromic ink layer is located on the side closer to the cover plate base layer, and the constant base color ink layer is located on the side closer to the nano-silver antibacterial layer.

[0010] Furthermore, the thermochromic ink layer is transparent at room temperature.

[0011] Furthermore, the thickness of the thermochromic ink layer is 10-20 μm.

[0012] Furthermore, the thickness of the constant base color ink layer is 5-15 μm.

[0013] Furthermore, the ink antibacterial cover plate also includes a multi-film structure formed by alternating stacking of several nickel fluoride film layers and several magnesium fluoride film layers, the multi-film structure being disposed on the upper surface of the cover plate base layer.

[0014] Furthermore, the thickness of the nickel fluoride film is 10-15 nm, and the thickness of the magnesium fluoride film is 5-10 nm.

[0015] Furthermore, the thickness of the nano-silver antibacterial layer is 1-3 nm.

[0016] A mobile terminal includes the aforementioned ink antibacterial cover plate.

[0017] This invention has the following beneficial effects: The ink antibacterial cover plate of this invention, by setting the nano-silver antibacterial layer on the lower surface of the outer ink layer, utilizes the bactericidal characteristics of nano-silver particles to prevent the growth of bacteria and other microorganisms on the lower surface of the cover plate; during terminal assembly, the ink antibacterial cover plate is coated with adhesive on the lower surface of the nano-silver antibacterial layer and is fixed to the mid-frame support of the mobile terminal by the adhesive. Even if some mobile terminals have gaps between the ink antibacterial cover plate and the mid-frame support due to the instability of the bonding process, thereby allowing microorganisms to grow, the nano-silver antibacterial layer can immediately kill these microorganisms, thus preventing these microorganisms from decomposing the organic components in the outer ink layer, ensuring that the outer ink layer does not change color or viscosity, thereby ensuring the stability of appearance and bonding. Attached Figure Description

[0018] Figure 1 A schematic diagram of the stacked structure of the ink antibacterial cover plate provided by this utility model.

[0019] Figure 2 A schematic diagram of the stacking structure of another ink antibacterial cover plate provided by this utility model.

[0020] Figure 3 for Figure 2 The diagram shows a planar structure of the ink-based antibacterial cover plate.

[0021] Figure 4 A schematic diagram of the stacking structure of another ink antibacterial cover plate provided by this utility model.

[0022] Figure 5 A schematic diagram of the stacking structure of another ink antibacterial cover plate provided by this utility model.

[0023] Figure 6 for Figure 5 The diagram shows a stacked structure of multiple film layers in the ink antibacterial cover plate. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] Example 1

[0029] like Figure 1 As shown, an antibacterial cover plate includes a cover plate base layer 1, an outer ink layer 2, and a nano-silver antibacterial layer 3. The outer ink layer 2 is disposed on the lower surface of the cover plate base layer 1, and the nano-silver antibacterial layer 3 is disposed on the lower surface of the outer ink layer 2.

[0030] The antibacterial cover of this invention utilizes the antibacterial properties of nano-silver particles to prevent the growth of bacteria and other microorganisms on the lower surface of the cover by setting the nano-silver antibacterial layer 3 on the lower surface of the outer ink layer 2. During terminal assembly, the antibacterial cover is coated with adhesive on the lower surface of the nano-silver antibacterial layer 3 and fixed to the mid-frame support of the mobile terminal by the adhesive. Even if some mobile terminals have gaps between the antibacterial cover and the mid-frame support due to the instability of the bonding process, which may lead to the growth of microorganisms, the nano-silver antibacterial layer 3 can immediately kill these microorganisms, thus preventing them from decomposing the organic components in the outer ink layer 2. This ensures that the outer ink layer 2 does not change in color or viscosity, thereby ensuring the stability of appearance and bonding.

[0031] In this embodiment, the thickness of the nano-silver antibacterial layer 3 is 1-3nm. It can be formed on the lower surface of the appearance ink layer 2 by screen printing nano-silver paste, or it can be formed on the lower surface of the appearance ink layer 2 by metal plating.

[0032] Mobile terminals such as mobile phones generally include a front cover and a back cover. The front cover needs to accommodate a display screen, thus requiring a distinction between the visible area and the bezel area. The back cover, however, does not require a display screen and therefore does not need to distinguish between the visible area and the bezel area. When the ink-based antibacterial cover is used as the back cover of a mobile terminal, such as... Figure 1 As shown, the exterior ink layer 2 and the nano-silver antibacterial layer 3 can cover the entire lower surface of the cover plate base layer 1.

[0033] When the ink antibacterial cover is used as the front cover of a mobile terminal, such as Figure 2 and 3 As shown, the cover plate base layer 1 includes a visible area 11 and a border area 12, with the border area 12 surrounding the periphery of the visible area 11; the appearance ink layer 2 and the nano silver antibacterial layer 3 only cover the border area 12 of the cover plate base layer 1, while avoiding the border area 12 of the cover plate base layer 1.

[0034] The cover plate base layer 1 may be, but is not limited to, a glass cover plate, a plastic cover plate, or a sapphire cover plate, and its thickness is between 0.2 and 2.0 mm.

[0035] Example 2

[0036] As an optimization of Embodiment 1, in this embodiment, such as Figure 4 As shown, the appearance ink layer 2 includes a thermochromic ink layer 21 and a constant base color ink layer 22 stacked together. The thermochromic ink layer 21 is located on the side closer to the cover plate base layer 1, and the constant base color ink layer 22 is located on the side closer to the nano silver antibacterial layer 3.

[0037] The antibacterial cover of this invention uses a thermochromic ink layer 21 and a constant base color ink layer 22 stacked together to form the appearance ink layer 2. The thermochromic ink layer 21 can sense the ambient temperature and change color according to the ambient temperature. Specifically, the thermochromic ink layer 21 presents one color in a normal temperature environment and another color in a high temperature environment. The higher the temperature, the deeper the color change. This not only enhances the personalization of the cover's appearance color but also alerts the user to changes in ambient temperature.

[0038] The color-changing principle of the thermochromic ink layer 21 is mainly based on the properties of thermosensitive materials. Thermosensitive materials undergo physical or chemical changes within a specific temperature range, resulting in a color change. Specifically, the thermochromic ink layer 21 typically consists of two pigments: a base pigment that is insensitive to temperature and a color-changing pigment that is sensitive to temperature. In a normal temperature environment, the two pigments mask each other, causing the thermochromic ink layer 21 to exhibit one color; while in a high-temperature environment, the color-changing pigment changes color, causing the thermochromic ink layer 21 to exhibit another color.

[0039] Preferably, the thermochromic ink layer 21 is transparent in a normal temperature environment so that the appearance ink layer 2 presents the color of the constant base color ink layer 22 as the appearance of the cover plate, while in a high temperature environment it presents one of the non-transparent colors such as red, blue or green.

[0040] In this embodiment, the thickness of the thermochromic ink layer 21 is 10-20 μm.

[0041] The color of the constant base color ink layer 22 remains constant and is not affected by environmental changes. In addition to using conventional black ink, it can also use colored inks such as red ink, blue ink, or green ink.

[0042] In this embodiment, the thickness of the constant base color ink layer 22 is 5-15 μm.

[0043] Example 3

[0044] As an optimization of Embodiment 1 or Embodiment 2, in this embodiment, such as Figure 5 and 6 As shown, the ink antibacterial cover plate also includes a multi-film structure 4 formed by alternating stacking of a plurality of nickel fluoride film layers 41 and a plurality of magnesium fluoride film layers 42, the multi-film structure 4 being disposed on the upper surface of the cover plate base layer 1.

[0045] The antibacterial ink cover of this invention improves the wear resistance, chemical stability, and light transmittance of the upper surface of the cover base 1 by setting a multi-layer structure 4 formed by alternating stacking of several nickel fluoride film layers 41 and several magnesium fluoride film layers 42. The nickel fluoride film layer 41 has high hardness, good wear resistance and chemical stability, which can effectively protect the cover from scratches and wear, and resist the corrosion of chemical substances. The magnesium fluoride film layer 42 can increase light transmittance and enhance the hardness and wear resistance of the multi-layer structure 4. Together with the nickel fluoride film layer 41, it can improve the overall film stability.

[0046] In this embodiment, there are three layers of nickel fluoride film 41 and three layers of magnesium fluoride film 42. The layer closest to the cover plate base layer 1 is the nickel fluoride film 41, and the layer furthest from the cover plate base layer 1 is the magnesium fluoride film 42. The thickness of the nickel fluoride film 41 is 10-15 nm, and the thickness of the magnesium fluoride film 42 is 5-10 nm.

[0047] Example 4

[0048] A mobile terminal includes the ink antibacterial cover plate described in Embodiment 1, Embodiment 2, or Embodiment 3.

[0049] 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 antibacterial ink cover plate, comprising a cover plate base layer and an outer ink layer, wherein the outer ink layer is disposed on the lower surface of the cover plate base layer; characterized in that, The ink antibacterial cover plate also includes a nano-silver antibacterial layer, which is disposed on the lower surface of the outer ink layer.

2. The ink-based antibacterial cover plate according to claim 1, characterized in that, The cover plate base layer includes a visible area and a border area, with the border area surrounding the periphery of the visible area; the appearance ink layer and the nano-silver antibacterial layer only cover the border area of ​​the cover plate base layer, while avoiding the border area of ​​the cover plate base layer.

3. The ink-based antibacterial cover plate according to claim 1 or 2, characterized in that, The appearance ink layer includes a thermochromic ink layer and a constant base color ink layer stacked together. The thermochromic ink layer is located on the side closer to the cover plate base layer, and the constant base color ink layer is located on the side closer to the nano silver antibacterial layer.

4. The ink-based antibacterial cover plate according to claim 3, characterized in that, The thermochromic ink layer is transparent at room temperature.

5. The ink-based antibacterial cover plate according to claim 3, characterized in that, The thickness of the thermochromic ink layer is 10-20 μm.

6. The ink-based antibacterial cover plate according to claim 3, characterized in that, The thickness of the constant base color ink layer is 5-15 μm.

7. The ink-based antibacterial cover plate according to claim 1, characterized in that, The ink antibacterial cover plate also includes a multi-layer structure formed by alternating stacking of several nickel fluoride film layers and several magnesium fluoride film layers, the multi-layer structure being disposed on the upper surface of the cover plate base layer.

8. The ink-based antibacterial cover plate according to claim 7, characterized in that, The thickness of the nickel fluoride film is 10-15 nm, and the thickness of the magnesium fluoride film is 5-10 nm.

9. The ink-based antibacterial cover plate according to claim 1, characterized in that, The thickness of the nano-silver antibacterial layer is 1-3 nm.

10. A mobile terminal, characterized in that, Including the ink antibacterial cover plate as described in claim 1.

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