Anti-ultraviolet cover plate with enhanced adhesive force and hardness

Abstract

The utility model discloses an anti-ultraviolet cover plate capable of enhancing adhesive force and hardness, which comprises a glass substrate, a boron oxide layer, a lithium titanate layer and a polyester resin layer, the boron oxide layer, the lithium titanate layer and the polyester resin layer are sequentially stacked from bottom to top on the surface of one side of the glass substrate in the thickness direction of the glass substrate; wherein the boron oxide layer is used for enhancing the surface adhesive force of the glass substrate, and the lithium titanate layer is used for improving the hardness of the glass substrate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cover plate technology especially to an ultraviolet resistant cover plate with enhanced adhesion and hardness. BACKGROUND

[0002] The cover plate of electronic products not only protects the product structure physically, but also can block ultraviolet rays; with the improvement of people's outdoor activities, the ability of electronic products to resist ultraviolet rays is increasingly obvious. For example, the cover plate of the car control is often irradiated by ultraviolet rays, and the cover plate components will be ultraviolet aged, and even cause functional malfunctions.

[0003] In order to solve the above technical problems, the patent number CN201920255701.8 discloses an ultraviolet resistant cover plate, which comprises a transparent cover plate, an optical matching layer and a zinc oxide film layer; the zinc oxide film layer is coated on the upper surface or the lower surface of the transparent cover plate; the optical matching layer is stacked between the zinc oxide film layer and the transparent cover plate or on the outer surface of the zinc oxide film layer. The patent uses the zinc oxide film layer to absorb and scatter ultraviolet rays. Zinc oxide can accept energy transition in ultraviolet rays, thereby absorbing ultraviolet rays. When the wavelength of the ultraviolet rays is smaller than that of the zinc oxide film layer, ultraviolet scattering occurs, thereby avoiding the technical problems of ultraviolet aging and functional malfunctions of the cover plate components caused by long-term ultraviolet irradiation.

[0004] However, the transparent cover plate is generally made of glass, and the adhesion of the zinc oxide film layer formed on the surface of the transparent cover plate is poor, and the hardness is not enough. In addition, the thickness of the zinc oxide film layer is small, and the micro-nano structure cannot be further processed on the surface. UTILITY MODEL CONTENT

[0005] In order to solve the above technical problems of the prior art, the utility model provides an ultraviolet resistant cover plate with enhanced adhesion and hardness.

[0006] The technical problem to be solved by the utility model is solved by the following technical scheme:

[0007] An ultraviolet resistant cover plate with enhanced adhesion and hardness, comprising a glass substrate, and a boron oxide layer, a lithium titanate layer and a polyester resin layer;

[0008] On one side surface of the glass substrate, along the thickness direction of the glass substrate, the boron oxide layer, the lithium titanate layer and the polyester resin layer are sequentially stacked from bottom to top;

[0009] Among them, the boron oxide layer is used to enhance the surface adhesion of the glass substrate, and the lithium titanate layer is used to improve the hardness of the glass substrate.

[0010] Further, the thickness of the polyester resin layer is greater than the thickness of the boron oxide layer and the lithium titanate layer.

[0011] Further, the thickness of the boron oxide layer is between 50-100nm.

[0012] Further, the thickness of the lithium titanate layer is between 100-200nm.

[0013] Further, the thickness of the polyester resin layer is between 1-5um.

[0014] Further, the side surface of the polyester resin layer away from the lithium titanate layer is micro-nano processed to form an anti-fingerprint micro-nano structure.

[0015] Further, the polyester resin layer is an aqueous electroplating anti-fingerprint oil using polyester resin as a film-forming material.

[0016] Further, the glass substrate has a visual area and a frame area surrounding the visual area; the anti-ultraviolet cover plate further comprises an opaque ink layer arranged on the frame area of the other side surface of the glass substrate.

[0017] Further, the lithium titanate layer comprises a covered area and an exposed area, the exposed area surrounds the covered area; the polyester resin layer is arranged on the covered area of the lithium titanate layer, and the exposed area of the lithium titanate layer is exposed outside the polyester resin layer; the lithium titanate layer wraps the edge side of the polyester resin layer.

[0018] Further, the width of the exposed area of the lithium titanate layer is less than the width of the frame area of the glass substrate.

[0019] The anti-ultraviolet cover plate has the following beneficial effects: the anti-ultraviolet cover plate sequentially arranges the boron oxide layer, the lithium titanate layer and the polyester resin layer on one side surface of the glass substrate to improve the surface adhesion, hardness and anti-ultraviolet ability of the glass substrate; the boron oxide layer can effectively fill the micro concave and defects on the surface of the glass substrate under high-temperature film-forming environment, thereby increasing the contact area and tightness between the glass substrate, and the surface of the glass substrate also has numerous micro concave and defects for the lithium titanate layer and the polyester resin layer to fill, thereby enhancing the surface adhesion of the glass substrate; the lithium titanate layer has an octahedral crystal structure, and the Mohs hardness reaches 8.5 level, which can greatly enhance the hardness and wear resistance of the glass substrate; the polyester resin layer contains functional groups capable of absorbing or reflecting ultraviolet rays, and has good anti-ultraviolet performance, which can improve the anti-ultraviolet ability of the glass substrate.

[0020] The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain.

[0021] The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain.

[0023] Figure 2 The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain. Figure 1 The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain.

[0024] Figure 3 The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain. The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain.

[0025] The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain. Figure 4 The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain. The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain.

[0026] The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain. Figure 5 The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain. DETAILED DESCRIPTION

[0027] The anti-ultraviolet cover plate of the utility model can reduce the adhesion of fingerprints on the surface of the cover plate, the micro-nano structure reduces the contact area between the finger and the polyester resin layer, thereby reducing the adhesion ability of the fingerprint dirt, and improving the visual field clarity of the electronic equipment such as the touch screen, the tablet computer and the mobile phone, and the surface of the cover plate is easy to clean and maintain.

[0028] In the description of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third" can be explicitly or implicitly included one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0030] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Embodiment one

[0032] As shown in Figure 1 An ultraviolet resistant cover plate with enhanced adhesion and hardness, comprising a glass substrate 10, and comprising a boron oxide layer 20, a lithium titanate layer 30 and a polyester resin layer 40;

[0033] On one side surface of the glass substrate 10, along the thickness direction of the glass substrate 10, the boron oxide layer 20, the lithium titanate layer 30 and the polyester resin layer 40 are sequentially stacked from bottom to top;

[0034] Among them, the boron oxide layer 20 is used to enhance the surface adhesion of the glass substrate 10, and the lithium titanate layer 30 is used to improve the hardness of the glass substrate 10.

[0035] The utility model discloses an anti -ultraviolet cover plate through setting boron oxide layer 20, lithium titanate layer 30 and polyester resin layer 40 in order on the one side surface of glass substrate 10 to improve the surface adhesion of glass substrate 10, hardness and ultraviolet resistance ability, wherein, boron oxide layer 20 can be effectively filled in the tiny recess and defect of glass substrate 10 surface under the high temperature film -forming environment, thereby increasing the contact area and close degree between glass substrate 10, and because with glass substrate 10 has similar chemical composition and structure, its surface also has numerous tiny recess and defect for lithium titanate layer 30 and polyester resin layer 40 fill, thereby enhancing the surface adhesion of glass substrate 10, lithium titanate layer 30 has the crystal structure of octahedron, and its Mohs hardness reaches 8.5 level, can greatly enhance the hardness and wear resistance of glass substrate 10, polyester resin layer 40 because containing the functional group that can absorb or reflect ultraviolet, therefore has good ultraviolet resistance performance, can improve the ultraviolet resistance ability of glass substrate 10.

[0036] Boron oxide layer 20 and lithium titanate layer 30 can be but not limited to through magnetron sputtering, vacuum evaporation or vapor deposition etc. on the surface of glass substrate 10 in order film -forming.

[0037] Preferably, the thickness of polyester resin layer 40 is greater than the thickness of boron oxide layer 20 and lithium titanate layer 30.

[0038] Polyester resin layer 40 is a high molecular polymer, which can be but not limited to be formed on the surface of lithium titanate layer 30 by spraying, roller coating or printing etc. Due to the large thickness, the surface of polyester resin layer 40 can be formed with a micro-nano structure having a specific function by micro-nano processing to improve the performance of polyester resin layer 40.

[0039] In this embodiment, the thickness of boron oxide layer 20 is between 50-100nm, the thickness of lithium titanate layer 30 is between 100-200nm, and the thickness of polyester resin layer 40 is between 1-5μm.

[0040] As shown in Figure 1 and 3 Glass substrate 10 has a visual area 11 and a frame area 12, and the frame area 12 surrounds the visual area 11. The anti-ultraviolet cover plate further comprises a shading ink layer 50, which is arranged on the frame area 12 of the other side surface of the glass substrate 10.

[0041] The shading ink layer 50 generally adopts black ink, and the thickness is between 5-15μm.

[0042] Example Two

[0043] As an optimization scheme of embodiment one, in the embodiment, as shown in Figure 2 The polyester resin layer 40 is micro-nano processed to form the anti-fingerprint micro-nano structure 41 on the side surface of the polyester resin layer 40.

[0044] The anti-ultraviolet cover plate of the utility model can significantly reduce the adhesion of fingerprints on the cover plate surface by forming the anti-fingerprint micro-nano structure 41 on the side surface of the polyester resin layer 40; the micro-nano structure reduces the contact area of the finger and the polyester resin layer 40, thereby reducing the adhesion ability of the fingerprint dirt, improving the visual field clarity of the touch screen, tablet computer, mobile phone and other electronic devices, and making the cover plate surface easy to clean and maintain.

[0045] The anti-fingerprint micro-nano structure 41 is a nano-level convex array with a convex height of 50-200 nm.

[0046] Preferably, the polyester resin layer 40 is an aqueous electroplating anti-fingerprint oil using polyester resin as a film-forming material.

[0047] Embodiment three

[0048] Considering that the polyester resin layer 40 is a high molecular polymer with hydrophilicity, is easy to absorb moisture and cause edge warping, and external moisture is easy to enter the inside of the polyester resin layer 40 from the edge side, it is necessary to do moisture-proof treatment on the edge side of the polyester resin layer 40.

[0049] As an optimization scheme of embodiment one or embodiment two, in the embodiment, as shown in Figure 4 and 5 The polyester resin layer 40 is disposed on the covered area 31 of the lithium titanate layer 30, the exposed area 32 of the lithium titanate layer 30 is exposed outside the polyester resin layer 40, and the lithium titanate layer 30 wraps the edge side of the polyester resin layer 40.

[0050] The anti-ultraviolet cover plate of the utility model improves the moisture-proof ability by inwardly retracting the edge of the polyester resin layer 40 to form the exposed area 32 by exposing the periphery of the lithium titanate layer 30, and using the exposed lithium titanate layer 30 to isolate the edge side of the polyester resin layer 40 from the outside, thereby preventing external moisture from entering the inside of the polyester resin layer 40 from the edge side.

[0051] Since the light-shielding ink is arranged on the frame area 12 of the glass substrate 10, the light-shielding ink itself can block the ultraviolet light, so the glass substrate 10 has less requirement for the ultraviolet resistance on the frame area 12, and the edge of the polyester resin layer 40 is inlaid by a certain distance, so that the periphery of the lithium titanate layer 30 is exposed, which has little influence on the ultraviolet resistance.

[0052] Preferably, the width of the exposed area 32 of the lithium titanate layer 30 is less than the width of the frame area 12 of the glass substrate 10, that is, the polyester resin layer 40 covers at least the visual area 11 of the glass substrate 10.

[0053] In the embodiment, the edge spacing between the lithium titanate layer 30 and the polyester resin layer 40 is between 0.2-0.5mm.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, but not to limit them. Although the embodiments of the present application have been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the embodiments of the present application can still be modified or replaced equivalently, and these modifications or equivalent replacements should not make the modified technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An ultraviolet resistant cover plate having enhanced adhesion and hardness, comprising a glass substrate, characterized in that, and comprising a boron oxide layer, a lithium titanate layer and a polyester resin layer; The boron oxide layer, the lithium titanate layer and the polyester resin layer are sequentially stacked from bottom to top along the thickness direction of the glass substrate on one side surface of the glass substrate. The boron oxide layer is used to enhance the surface adhesion of the glass substrate, and the lithium titanate layer is used to improve the hardness of the glass substrate.

2. The anti-UV cover plate according to claim 1, characterized in that, The thickness of the polyester resin layer is greater than the thickness of the boron oxide layer and the lithium titanate layer.

3. The anti-UV cover plate according to claim 1 or 2, characterized in that, The thickness of the boron oxide layer is between 50-100nm.

4. The anti-UV cover plate according to claim 1 or 2, characterized in that, The thickness of the lithium titanate layer is between 100-200nm.

5. The anti-UV cover plate according to claim 1 or 2, characterized in that, The thickness of the polyester resin layer is between 1-5μm.

6. The anti-UV cover plate according to claim 1 or 2, characterized in that, The side surface of the polyester resin layer away from the lithium titanate layer is micro-nano processed to form an anti-fingerprint micro-nano structure.

7. The anti-UV cover plate according to claim 1 or 2, characterized in that, The polyester resin layer is an aqueous electroplating anti-fingerprint oil using polyester resin as a film-forming material.

8. The anti-UV cover sheet according to claim 1, wherein The glass substrate has a visual area and a frame area surrounding the visual area; the anti-ultraviolet cover plate further comprises a shading ink layer arranged on the frame area of the other side surface of the glass substrate.

9. The anti-UV cover sheet according to claim 8, characterized in that The lithium titanate layer comprises a covered area and an exposed area, and the exposed area surrounds the covered area; the polyester resin layer is arranged on the covered area of the lithium titanate layer, and the exposed area of the lithium titanate layer is exposed outside the polyester resin layer; the lithium titanate layer wraps the edge side of the polyester resin layer.

10. The anti-UV cover plate according to claim 9, characterized in that, The width of the exposed area of the lithium titanate layer is less than the width of the frame area of the glass substrate.

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