Optical coating protective cover plate and touch panel

Abstract

The utility model discloses an optical coating protective cover plate, which comprises a glass cover plate provided with an outer side surface and an inner side surface which are oppositely arranged along the thickness direction of the glass cover plate; the anti-fingerprint film layer is arranged on the outer side surface of the glass cover plate; wherein the anti-fingerprint film layer comprises a plurality of hydrophobic areas and a plurality of photocatalytic areas, and the hydrophobic areas and the photocatalytic areas are sequentially and alternately distributed on the outer side surface of the glass cover plate. According to the optical coating protective cover plate, the situation that fingerprint grease stained on the fingerprint-proof film layer is not cleaned and removed for a long time and bacteria breed can be avoided. The utility model further discloses a touch panel which comprises the optical coating protective cover plate.

Description

Technical Field

[0001] This utility model relates to the field of electronic accessories, and in particular to an optical coating protective cover and a touch panel. Background Technology

[0002] Mobile devices such as mobile phones and tablets generally use glass covers as protective covers. Due to prolonged contact with fingers, the surface of these protective covers will inevitably become stained with fingerprints and oils.

[0003] To prevent fingerprints and grease from staining the surface of the protective cover, conventional techniques typically involve coating the surface of the protective cover with a layer of hydrophobic material through vacuum deposition or spraying, which serves as an anti-fingerprint film. The hydrophobic material can be an organic fluoride or similar compound.

[0004] However, hydrophobic materials only make it easier to clean and remove fingerprint grease from the cover after it has been contaminated. Their effect on preventing fingerprint grease from sticking is not significant. Therefore, cover plates that use hydrophobic materials as the anti-fingerprint film layer need to be cleaned and removed regularly to remove the fingerprint grease on their surface. If they are not cleaned and removed for a long time, bacteria will grow on their surface. Utility Model Content

[0005] To address the shortcomings of the existing technology, this invention provides an optically coated protective cover that can prevent the growth of bacteria from fingerprint grease on the anti-fingerprint film due to prolonged lack of cleaning.

[0006] This utility model also provides a touch panel, including the above-mentioned optical coating protective cover.

[0007] The technical problem to be solved by this utility model is achieved through the following technical solution:

[0008] An optically coated protective cover, comprising:

[0009] The glass cover has an outer surface and an inner surface that are positioned opposite each other along its thickness direction;

[0010] An anti-fingerprint film layer is disposed on the outer surface of the glass cover;

[0011] The anti-fingerprint film layer includes multiple hydrophobic regions and multiple photocatalytic regions, which are alternately distributed on the outer surface of the glass cover.

[0012] Furthermore, the hydrophobic regions and the photocatalytic regions are sequentially and alternately distributed along the first direction on the outer surface of the glass cover plate.

[0013] Furthermore, the hydrophobic regions and the photocatalytic regions are alternately distributed along the second direction on the outer surface of the glass cover plate.

[0014] Furthermore, the first width of each hydrophobic region and each photocatalytic region along the first direction or the second width along the second direction is between 80 and 150 μm.

[0015] Furthermore, the first direction is perpendicular to the second direction.

[0016] Furthermore, the thickness of the anti-fingerprint film layer is between 20-30 μm.

[0017] Furthermore, the hydrophobic region is an organic fluoride film layer, and the photocatalytic region is a nano-metal oxide film layer.

[0018] Furthermore, the optical coating protective cover also includes a silicone resin film layer, which is disposed between the glass cover and the anti-fingerprint film layer.

[0019] Furthermore, the optical coating protective cover also includes a boron carbide film layer, which is disposed between the silicone resin film layer and the anti-fingerprint film layer.

[0020] A touch panel includes a touch glass and the aforementioned optically coated protective cover, wherein the touch glass is attached to the inner surface of the glass cover of the optically coated protective cover.

[0021] The present invention has the following beneficial effects: The optical coating protective cover of the present invention forms the anti-fingerprint film layer on the outer surface of the glass cover by a plurality of alternating hydrophobic regions and a plurality of photocatalytic regions. The hydrophobic regions reduce the surface energy of the protective cover by their hydrophobicity, making it easy to clean and remove fingerprint grease after it adheres to the anti-fingerprint film layer. The photocatalytic regions utilize their photocatalytic properties to perform oxidation-reduction treatment on the fingerprint grease adhering to the anti-fingerprint film layer under light conditions, thereby degrading the fingerprint grease and preventing the growth of bacteria due to the fingerprint grease adhering to the anti-fingerprint film layer not being cleaned and removed for a long time. Attached Figure Description

[0022] Figure 1 A schematic diagram of the stacked structure of the optical coating protective cover plate provided by this utility model.

[0023] Figure 2 A schematic diagram of the stacked structure of another optical coating protective cover provided by this utility model.

[0024] Figure 3 A schematic diagram of the stacked structure of another optical coating protective cover provided by this utility model.

[0025] Figure 4 A schematic diagram of the planar structure of the anti-fingerprint film layer in the optical coating protective cover provided by this utility model.

[0026] Figure 5 A schematic diagram of the planar structure of another anti-fingerprint film layer in the optical coating protective cover provided by this utility model.

[0027] Figure 6 A schematic diagram of the planar structure of another anti-fingerprint film layer in the optical coating protective cover provided by this utility model.

[0028] Figure 7 A schematic diagram of the stacked structure of the touch screen provided by this utility model. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] Example 1

[0034] like Figure 1 As shown, an optically coated protective cover includes:

[0035] The glass cover plate 11 has an outer surface and an inner surface that are arranged opposite to each other along its own thickness direction;

[0036] An anti-fingerprint film layer 12 is disposed on the outer surface of the glass cover plate 11;

[0037] The anti-fingerprint film layer 12 includes multiple hydrophobic regions 121 and multiple photocatalytic regions 122, with each hydrophobic region 121 and each photocatalytic region 122 alternately distributed on the outer surface of the glass cover plate 11.

[0038] The optical coating protective cover of this invention forms the anti-fingerprint film layer 12 on the outer surface of the glass cover 11 by a plurality of alternating hydrophobic regions 121 and a plurality of photocatalytic regions 122. The hydrophobic regions 121 reduce the surface energy of the protective cover by their hydrophobicity, making it easy to clean and remove fingerprint grease after it adheres to the anti-fingerprint film layer 12. The photocatalytic regions 122 utilize their photocatalytic properties to perform oxidation-reduction treatment on the fingerprint grease adhering to the anti-fingerprint film layer 12 under light conditions, thereby degrading the fingerprint grease and preventing the growth of bacteria due to prolonged uncleaning of the fingerprint grease adhering to the anti-fingerprint film layer 12.

[0039] When fabricating the anti-fingerprint film layer 12, a first mask is first used to partially block the outer surface of the glass cover plate 11. Then, through the first mask, a hydrophobic material is sputtered or sprayed onto the unblocked area of ​​the outer surface of the glass cover plate 11 to form the hydrophobic area 121. Then, a second mask is used to partially block the outer surface of the glass cover plate 11. Then, through the second mask, a photocatalytic material is sputtered or sprayed onto the unblocked area of ​​the outer surface of the glass cover plate 11 to form the photocatalytic area 122. The blocked area and the cut-out area of ​​the first mask are opposite to those of the blocked area and the cut-out area of ​​the second mask.

[0040] The glass cover plate 11 has a first direction and a second direction, preferably, the first direction is perpendicular to the second direction. In this embodiment, the glass cover plate 11 is rectangular, the first direction is the length direction of the glass cover plate 11, and the second direction is the width direction of the glass cover plate 11.

[0041] In some examples, such as Figure 4 As shown, each hydrophobic region 121 and each photocatalytic region 122 are alternately distributed along the first direction on the outer surface of the glass cover plate 11, and the first width of each hydrophobic region 121 and each photocatalytic region 122 along the first direction is between 80-150 μm.

[0042] In some examples, such as Figure 5 As shown, each hydrophobic region 121 and each photocatalytic region 122 are alternately distributed along the second direction on the outer surface of the glass cover plate 11, and the second width of each hydrophobic region 121 and each photocatalytic region 122 along the second direction is between 80-150 μm.

[0043] In some examples, such as Figure 6 As shown, each hydrophobic region 121 and each photocatalytic region 122 are simultaneously and alternately distributed along the first direction and the second direction on the outer surface of the glass cover plate 11, and the first width of each hydrophobic region 121 and each photocatalytic region 122 along the first direction and the second width along the second direction are both between 80-150 μm.

[0044] Preferably, the thickness of the anti-fingerprint film 12 is between 20-30 μm, the hydrophobic region 121 is an organic fluoride film such as polytetrafluoroethylene, polyhexafluoropropylene or fluorosilane, and the photocatalytic region 122 is a nano metal oxide film such as nano titanium dioxide, nano zinc oxide or nano ferrous oxide.

[0045] Example 2

[0046] As an optimization of Embodiment 1, in this embodiment, such as Figure 2 As shown, the optical coating protective cover also includes a silicone resin film layer 13, which is disposed between the glass cover 11 and the anti-fingerprint film layer 12.

[0047] The silicone resin film 13 is a thin film formed from silicone resin, possessing excellent properties such as weather resistance, corrosion resistance, high-temperature stability, and electrical insulation. Silicone resin molecules contain a large number of silicon-oxygen bonds with high bond energy, giving the silicone resin molecules high stability and flexibility. When silicone resin is coated or sprayed onto the glass cover plate 11, the silicone resin molecules form a dense thin film on the outer surface of the glass cover plate 11. During the film formation process, the intermolecular forces of silicone resin (such as hydrogen bonds and van der Waals forces) play a crucial role, while the crosslinking agent reacts with the silicone resin molecules to form crosslinking points, further enhancing stability and mechanical strength.

[0048] Preferably, the thickness of the silicone resin film layer 13 may be, but is not limited to, between 100-150 nm. It is formed on the outer surface of the glass cover plate 11 by means of screen printing, spraying or roller coating, and then the anti-fingerprint film layer 12 is formed on the surface of the silicone resin film layer 13.

[0049] Example 3

[0050] As an optimization of Embodiment 2, in this embodiment, such as Figure 3 As shown, the optical coating protective cover also includes a boron carbide film layer 14, which is disposed between the silicone resin film layer 13 and the anti-fingerprint film layer 12.

[0051] The boron carbide film 14 is a high-performance optical film with excellent physical and chemical properties, including high hardness, low density, and high stability. Boron carbide has extremely high hardness, even exceeding that of diamond and cubic boron nitride under certain conditions, but it also has a relatively low density, allowing for thinner designs while meeting high hardness requirements. Furthermore, boron carbide is chemically stable at room temperature, reacts almost entirely with acids and alkalis, exhibits excellent corrosion resistance, and maintains good stability and hardness even at high temperatures.

[0052] Preferably, the thickness of the boron carbide film layer 14 can be, but is not limited to, between 50-80 nm. It is formed on the surface of the silicone resin film layer 13 by means of magnetron sputtering, vacuum evaporation or vapor deposition, and then the anti-fingerprint film layer 12 is formed on the surface of the boron carbide film layer 14.

[0053] Example 4

[0054] like Figure 7 As shown, a touch panel includes a touch glass 2 and an optical coating protective cover 1 as described in Embodiment 1, Embodiment 2 or Embodiment 3, wherein the touch glass 2 is attached to the inner surface of the glass cover 11 of the optical coating protective cover 1.

[0055] Preferably, the touch glass 2 is bonded to the inner surface of the glass cover plate 11 of the optical coating protective cover plate 1 using OCA optical adhesive.

[0056] 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 optically coated protective cover, characterized in that, include: The glass cover has an outer surface and an inner surface that are positioned opposite each other along its thickness direction; An anti-fingerprint film layer is disposed on the outer surface of the glass cover; The anti-fingerprint film layer includes multiple hydrophobic regions and multiple photocatalytic regions, which are alternately distributed on the outer surface of the glass cover. The hydrophobic regions and photocatalytic regions are alternately distributed on the outer surface of the glass cover along a first direction.

2. The optical coating protective cover plate according to claim 1, characterized in that, The hydrophobic regions and the photocatalytic regions are alternately distributed along the second direction on the outer surface of the glass cover.

3. The optical coating protective cover plate according to claim 2, characterized in that, The first width of each hydrophobic region and each photocatalytic region along the first direction or the second width along the second direction is between 80 and 150 μm.

4. The optical coating protective cover plate according to claim 2, characterized in that, The first direction is perpendicular to the second direction.

5. The optical coating protective cover plate according to claim 1, characterized in that, The thickness of the anti-fingerprint film is between 20-30 μm.

6. The optical coating protective cover plate according to claim 1, characterized in that, The hydrophobic region is an organic fluoride film layer, and the photocatalytic region is a nano-metal oxide film layer.

7. The optical coating protective cover plate according to claim 1, characterized in that, The optical coating protective cover also includes a silicone resin film layer, which is disposed between the glass cover and the anti-fingerprint film layer.

8. The optical coating protective cover plate according to claim 7, characterized in that, The optical coating protective cover also includes a boron carbide film layer, which is disposed between the silicone resin film layer and the anti-fingerprint film layer.

9. A touch panel, characterized in that, It includes a touch glass and the optical coating protective cover as described in claim 1, wherein the touch glass is attached to the inner surface of the glass cover of the optical coating protective cover.

Images