Touch screen and anti-fingerprint cover plate

Abstract

The utility model discloses an anti-fingerprint cover plate which comprises an inorganic glass cover plate. The coupling agent coating is arranged on the surface of one side of the inorganic glass cover plate; and the organic fluoride coating is arranged on the surface of one side, far away from the inorganic glass cover plate, of the coupling agent coating. According to the anti-fingerprint cover plate, the adhesive force of the organic fluoride coating on the inorganic glass cover plate can be improved. The utility model further discloses a touch screen which comprises the anti-fingerprint cover plate.

Description

Technical Field

[0001] This utility model relates to touch screen technology, and more particularly to a touch screen and an anti-fingerprint cover. Background Technology

[0002] During daily use, the touchscreens of smartphones, tablets, and other electronic products easily accumulate fingerprints, sebum, and other dirt, severely impacting the user experience. To address this issue, the industry's main solution currently involves applying a layer of fluoride to the touchscreen surface as an anti-fingerprint layer.

[0003] Fluorides include two types: organic fluorides and inorganic fluorides. Since touch screens generally use glass covers as the base layer, and glass is an inorganic material, organic fluorides have poor adhesion to glass covers. Therefore, touch screens generally use inorganic fluorides as the anti-fingerprint layer.

[0004] However, inorganic fluorides require processes such as magnetron sputtering, vacuum evaporation, or vapor deposition to form a film on the surface of the glass cover. The coating equipment for these processes is expensive, and the cost is higher than that of using organic fluorides as an anti-fingerprint layer. Utility Model Content

[0005] To address the shortcomings of the prior art, this invention provides a touch screen and an anti-fingerprint cover plate, which can improve the adhesion of organic fluoride coatings to inorganic glass cover plates.

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

[0007] A fingerprint-resistant cover, comprising:

[0008] Inorganic glass cover plate;

[0009] A coupling agent coating is applied to one side surface of the inorganic glass cover plate;

[0010] An organofluorine coating is disposed on the surface of the coupling agent coating away from the inorganic glass cover.

[0011] Furthermore, the inorganic glass cover plate is made of silicate glass, borate glass, potassium-calcium glass, or quartz glass.

[0012] Furthermore, the coupling agent coating is a silane coupling agent, a titanate coupling agent, an aluminate coupling agent, or an organic complex coupling agent.

[0013] Furthermore, the thickness of the coupling agent coating is between 50-150 nm.

[0014] Furthermore, the organofluorine coating is perfluoropolyethylene, polytetrafluoroethylene, polyhexafluoropropylene, or sulfonated polyfluoroethylene.

[0015] Furthermore, the thickness of the organofluorine coating is 5-7 μm.

[0016] Furthermore, the organofluorine coating includes multiple highly hydrophobic regions and multiple highly oleophobic regions, with each highly hydrophobic region and each highly oleophobic region being alternately distributed on the surface of the coupling agent coating.

[0017] Furthermore, the coupling agent coating has a first direction and a second direction on its surface, and the highly hydrophobic regions and the highly oleophobic regions are alternately distributed in at least one of the first and second directions.

[0018] Furthermore, the spacing between two adjacent highly hydrophobic regions, or the spacing between two adjacent highly oleophobic regions, is between 50 and 500 μm.

[0019] A touch screen includes a touch sensing layer and the aforementioned anti-fingerprint cover, wherein the touch sensing layer is disposed on the surface of the inorganic glass cover away from the coupling agent coating.

[0020] The present invention has the following beneficial effects: The anti-fingerprint cover of the present invention uses the organic fluoride coating as the anti-fingerprint layer, and a coupling agent coating is provided between the inorganic glass cover and the organic fluoride coating. The coupling agent coating is used to improve the interfacial performance between the inorganic glass cover and the organic fluoride coating. It contains organic-loving functional groups and inorganic-loving functional groups. Through these two functional groups, a stable and good bonding force can be formed between the inorganic glass cover and the organic fluoride coating, thereby improving the adhesion of the organic fluoride coating to the inorganic glass cover. Attached Figure Description

[0021] Figure 1 A schematic diagram of the stacking structure of the anti-fingerprint cover provided by this utility model.

[0022] Figure 2 A schematic diagram of the planar structure of the organic fluoride coating in the fingerprint-resistant cover provided by this utility model.

[0023] Figure 3 A schematic diagram of the planar structure of the organic fluoride coating in another fingerprint-resistant cover provided by this utility model.

[0024] Figure 4 A schematic diagram of the planar structure of the organic fluoride coating in another fingerprint-resistant cover provided by this utility model.

[0025] Figure 5A schematic diagram of the stacked structure of the touch screen provided by this utility model. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Example 1

[0031] like Figure 1 As shown, an anti-fingerprint cover includes:

[0032] Inorganic glass cover plate 21;

[0033] A coupling agent coating 22 is disposed on one side surface of the inorganic glass cover plate 21;

[0034] An organic fluoride coating 23 is disposed on the surface of the coupling agent coating 22 on the side away from the inorganic glass cover plate 21.

[0035] The fingerprint-resistant cover of this invention uses the organic fluoride coating 23 as the fingerprint-resistant layer, and a coupling agent coating 22 is provided between the inorganic glass cover 21 and the organic fluoride coating 23. The coupling agent coating 22 is used to improve the interfacial properties between the inorganic glass cover 21 and the organic fluoride coating 23. It contains organic-loving functional groups and inorganic-loving functional groups. Through these two functional groups, a stable and good bonding force can be formed between the inorganic glass cover 21 and the organic fluoride coating 23, thereby improving the adhesion of the organic fluoride coating 23 on the inorganic glass cover 21.

[0036] The organic fluoride coating 23 can be dissolved in an organic solvent, thereby uniformly covering the surface of the coupling agent coating 22 by spraying, roller coating or printing, and then curing it into a film by baking. The equipment for this type of process is inexpensive, so the cost of using organic fluoride as the anti-fingerprint layer is low.

[0037] The inorganic glass cover plate 21 may be, but is not limited to, silicate glass, borate glass, potassium-calcium glass or quartz glass, and its thickness is between 1-2 mm.

[0038] The coupling agent coating 22 may be, but is not limited to, a silane coupling agent, a titanate coupling agent, an aluminate coupling agent, or an organic complex coupling agent, and its thickness is between 50-150 nm.

[0039] The organofluorine coating 23 may be, but is not limited to, perfluoropolyethylene, polytetrafluoroethylene, polyhexafluoropropylene or sulfonated polyfluoroethylene, etc., and its thickness is 5-7 μm.

[0040] Example 2

[0041] As an optimization of Embodiment 1, in this embodiment, such as Figure 2-4 As shown, the organofluorine coating 23 includes a plurality of highly hydrophobic regions 231 and a plurality of highly oleophobic regions 232, and the highly hydrophobic regions 231 and the highly oleophobic regions 232 are alternately distributed on the surface of the coupling agent coating 22.

[0042] Since different organofluorine compounds have different hydrophobicity and oleophobicity, some organofluorine compounds have high hydrophobicity and low oleophobicity, while others have high oleophobicity and low hydrophobicity. If a single organofluorine compound is used to make the organofluorine coating 23, the organofluorine coating 23 may have low hydrophobicity or low oleophobicity.

[0043] The fingerprint-resistant cover of this invention uses two types of organic fluorides to make the organic fluoride coating 23. One organic fluoride has high hydrophobicity to form multiple highly hydrophobic regions 231, and the other organic fluoride has high oleophobicity to form multiple highly oleophobic regions 232. This makes the organic fluoride coating 23 have both high hydrophobicity and oleophobicity. Furthermore, the highly hydrophobic regions 231 and the highly oleophobic regions 232 are distributed alternately in sequence, so that the hydrophobicity and oleophobicity of the organic fluoride coating 23 are the same or similar in all places.

[0044] The hydrophobicity of the highly hydrophobic region 231 is greater than that of the highly oleophobic region 232, while the oleophobicity of the highly oleophobic region 232 is greater than that of the highly hydrophobic region 231.

[0045] The coupling agent coating 22 has a first direction x and a second direction y on its surface, preferably, the first direction x is perpendicular to the second direction y; each highly hydrophobic region 231 and each highly oleophobic region 232 are alternately distributed in at least one of the first direction x and the second direction y.

[0046] Preferably, the spacing between two adjacent highly hydrophobic regions 231, or the spacing between two adjacent highly oleophobic regions 232, is between 50 and 500 μm.

[0047] Example 3

[0048] like Figure 5 As shown, a touch screen includes a touch sensing layer 1 and an anti-fingerprint cover plate 2 as described in Embodiment 1 or Embodiment 2. The touch sensing layer 1 is disposed on the surface of the inorganic glass cover plate 21 away from the coupling agent coating 22.

[0049] Preferably, the touch sensing layer 1 is bonded and fixed to one side surface of the inorganic glass cover plate 21 by OCA optical adhesive 3.

[0050] 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 anti-fingerprint cover sheet, characterized by, The application relates to a fingerprint-proof cover plate, comprising: an inorganic glass cover plate; a coupling agent coating arranged on one side surface of the inorganic glass cover plate; an organic fluorine compound coating arranged on the side surface of the coupling agent coating away from the inorganic glass cover plate.

2. The anti-fingerprint cover sheet according to claim 1, wherein, The inorganic glass cover plate is silicate glass, borate glass, potassium-calcium glass or quartz glass.

3. The anti-fingerprint cover sheet of claim 1, wherein, The coupling agent coating is a silane coupling agent, a titanate coupling agent, an aluminate coupling agent or an organic complex coupling agent.

4. The anti-fingerprint cover plate according to claim 1 or 3, characterized in that, The thickness of the coupling agent coating is between 50 and 150 nm.

5. The anti-fingerprint cover sheet of claim 1, wherein, The organic fluorine compound coating is perfluoropolyethylene, polytetrafluoroethylene, polyhexafluoropropylene or sulfonated polyvinyl fluoride.

6. The anti-fingerprint cover plate according to claim 1 or 5, characterized in that, The thickness of the organic fluorine compound coating is between 5 and 7 microns.

7. The anti-fingerprint cover sheet of claim 1, wherein, The organic fluorine compound coating comprises a plurality of high-hydrophobic regions and a plurality of high-oleophobic regions, and each high-hydrophobic region and each high-oleophobic region are alternately arranged on the surface of the coupling agent coating.

8. The anti-fingerprint cover sheet of claim 7, wherein, The coupling agent coating has a first direction and a second direction on its surface, and each high-hydrophobic region and each high-oleophobic region are alternately arranged in at least one of the first direction and the second direction.

9. The anti-fingerprint cover sheet according to claim 7 or 8, characterized in that The distance between two adjacent high-hydrophobic regions or the distance between two adjacent high-oleophobic regions is between 50 and 500 microns.

10. A touch screen, characterized by The application further relates to a touch sensing layer arranged on the side surface of the inorganic glass cover plate away from the coupling agent coating.

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