Ultraviolet-protective cellphone screen protector, and testing method therefor

Abstract

Disclosed in the present invention an ultraviolet-protective cellphone screen protector, and a testing method therefor. The cellphone screen protector comprises: an ultraviolet-protection screen protector body, and a protective release plate attached onto a surface of the screen protector body, wherein the protective release plate contains an ultraviolet responsive color-changing material, and the area of the protective release plate is greater than the area of the screen protector body, such that at least part of the protective release plate is not covered by the screen protector body. The testing method comprises: directly placing a screen protector body with a protective release plate in sunlight or other ultraviolet light sources for irradiation, wherein the color of the part of the protective release plate that is not covered by the screen protector body changes, and the color of the part of the protective release plate that is covered by the screen protector body does not change since the screen protector body has a capability of ultraviolet protection. In the present invention, an ultraviolet-protection testing function is directly integrated in a cellphone screen protector product; during testing, it is not necessary to separate a protective release plate from a screen protector body, and therefore no damage is caused to the product, and sales of the product are not affected; in addition, consumers can directly observe the ultraviolet-protection effect of the product.

Description

Ultraviolet protection mobile phone protective film and detection method thereof Technical Field

[0001] The present invention relates to the technical field of electronic product protective film products, in particular to an ultraviolet-proof mobile phone protective film and a detection method thereof. Background Art

[0002] Smart electronic devices such as mobile phones have become essential communication tools. However, due to frequent use, mobile phone screens are prone to becoming dirty or even scratched. Therefore, after purchasing a mobile phone, users often apply a protective film to protect the screen. For example, current mobile phone protective films are mostly made of tempered glass. With technological advancements, users' requirements for mobile phone protective films have become increasingly demanding, and protective films with UV protection have now appeared on the market. For example, see Chinese utility model patent No. 201721063938.3, entitled "A Transparent UV-Proof Protective Film," and invention patent No. 201410183948.5, entitled "An Adhesive Layer, Anti-Blue Light, and Full UV Protection Protective Film." The protective films disclosed in these patents feature a UV-proof coating applied to the surface of the film itself. Alternatively, UV-proof materials are added to the raw materials used to manufacture the protective films.

[0003] This UV-resistant protective film has been a hit with consumers since its launch. However, some unscrupulous vendors have also been selling inferior products, labeling them as UV-resistant products when they don't. This has led to consumers struggling to distinguish between quality UV-resistant products. To address this issue, some vendors offer demonstrations of the UV-resistant effects during sales. The demonstration proceeds as follows: Take a plastic cardboard with UV-discoloring material. This material changes color under UV light. During the demonstration, the vendor covers a portion of the cardboard with the UV-resistant protective film. Then, they expose the cardboard and protective film to sunlight or other UV-emitting light sources. The areas uncovered by the film change color, while the areas covered by the film remain unchanged. This directly demonstrates the UV-resistant properties of the film.

[0004] For the above technologies, please refer to:

[0005] 1. Chinese invention patent No. 202110135150.3, which discloses a photochromic protective film and a preparation method thereof.

[0006] 2. Chinese invention patent No. 202210759513.5, which discloses a protective film glue, a protective film and its preparation method, and a screen protective film. Technical issues

[0007] Although the demonstration method described above helps consumers understand the functions of the product, some consumers still have doubts. Due to the self-adhesive characteristics of mobile phone protective films, all protective films are compounded with release protective plates and release protective films when sold. When demonstrating, merchants usually need to separate the protective film body from the release protective plate for demonstration. In this way, the protective film used for demonstration cannot be sold and can only be discarded. This leads to a paradox: the product that has been demonstrated cannot be sold again, and the product to be sold cannot be demonstrated due to the presence of the release protective plate and release protective film. Technical Solutions

[0008] In view of the above problems, the inventors propose the following technical solutions. The technical problem to be solved by the present invention is to overcome the deficiency of existing protective film products that it is inconvenient to demonstrate their UV protection, and to provide a detection method for mobile phone protective films with UV protection.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solution: an anti-ultraviolet mobile phone protective film, which includes: an anti-ultraviolet protective film body and a release protective plate attached to the surface of the protective film body, the release protective plate contains ultraviolet color-changing material, and the area of ​​the release protective plate is larger than the area of ​​the protective film body, so that at least a part of the release protective plate is not covered by the protective film body.

[0010] Furthermore, in the above technical solution, the release protective plate includes: a transparent or light-transmitting plastic carrier plate, and an ultraviolet color-changing coating or film composited on the plastic carrier plate.

[0011] Furthermore, in the above technical solution, the raw material of the release protective plate contains ultraviolet color-changing powder, and the release protective plate containing ultraviolet color-changing material is formed by injection molding.

[0012] Furthermore, in the above technical solution, the protective film body is located in the middle area of ​​the release protective plate, and the area of ​​the release protective plate not covered by the protective film body is located in the edge area.

[0013] Furthermore, in the above technical solution, the detection method of the mobile phone protective film with UV protection is: the protective film body with a release protective plate is directly placed under sunlight or other ultraviolet light sources for irradiation. The area on the release protective plate not covered by the protective film body will change color under the light, and the area covered by the protective film body will not change color due to the UV protection of the protective film body. Beneficial effects

[0014] By adopting the above technical solution, the present invention directly combines the color-changing material with a detectable UV protection effect with the release plate of the protective film. The release plate is also ensured to be larger than the protective film itself, ensuring that at least a portion of the release plate is not covered by the protective film itself. During product sales demonstrations, the protective film and release plate do not need to be separated. When the product is exposed directly to sunlight or other UV light sources, the areas of the release plate not covered by the protective film will change color, while the areas covered by the protective film will not.

[0015] The present invention integrates the detection of the anti-ultraviolet function directly into the mobile phone protective film product. During the detection, there is no need to separate the release protective plate from the protective film, which does not damage the product and does not affect sales. At the same time, consumers can intuitively observe the anti-ultraviolet effect of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a schematic diagram of a first embodiment of the present invention;

[0017] FIG2 is a diagram showing a usage state of the first embodiment of the present invention;

[0018] FIG3 is an exploded perspective view of a second embodiment of the present invention;

[0019] FIG4 is a schematic diagram of a third embodiment of the present invention. Modes for Carrying Out the Invention

[0020] Specific implementation method:

[0021] The invention relates to a mobile phone protective film product, in particular to a mobile phone protective film with ultraviolet protection and a detection method.

[0022] The structure is similar to existing mobile phone protective films. For better illustration, see Figure 1. The mobile phone protective film in Example 1 of the present invention comprises a protective film body 1 and a release protective plate 2. The protective film body 1 in Example 1 of the present invention utilizes a UV-resistant tempered glass film. The release protective plate 2, attached to the surface of the protective film body 1, contains a UV-discoloring material and is larger in area than the protective film.

[0023] Specifically, the release plate 2 comprises a transparent or translucent plastic carrier plate and a UV-discoloring coating or film laminated onto the plastic carrier plate. Alternatively, the release plate 2 may be made from a raw material containing UV-discoloring powder, and the release plate 2 containing the UV-discoloring material may be formed by injection molding.

[0024] The UV protection of the protective film body 1 of the present invention can be achieved by referring to the prior art described in the background. The UV-discoloring coating, film, or powder described in the release protective plate 2 of the present invention can be made of OP powder or MC powder. OP powder (solar-discoloring material) is a special small molecule material that changes color under ultraviolet light. It is a white or off-white powder. Its color change mechanism is that it is excited by ultraviolet light, causing changes in its molecular structure, resulting in a color change. When the ultraviolet light is removed, the molecular structure recovers and the original color returns. MC powder (photochromic material) changes color by absorbing ultraviolet light of a specific wavelength. The energy from this light causes a color change (to purple, red, blue, yellow, etc.). When the specific wavelength of ultraviolet light is removed, the color returns to its original color. Photochromic MC powder is a product processed using microencapsulation technology. It has a powdery appearance with a particle size between 1-10 μm and possesses properties modified by the microencapsulation, such as high-temperature resistance and antioxidant properties. When the present invention is applied, the color-changing material can be selected according to the needs. The coating can be directly formed and applied on the surface of the release protective plate 2; or a thin film material can be made and then composited on the surface of the release protective plate 2; or the color-changing material can be directly added to the raw material of the release protective plate 2 so that the release protective plate 2 itself has a color-changing effect.

[0025] The size of the centrifugal protective plate 2 must ensure that at least a portion of the release plate 2 is uncovered by the protective film body 1. For example, if the protective film body 1 is located in the middle of the release plate 2, there will be uncovered areas 21 at the edges of the release plate 2. The areas of the release plate 2 not covered by the protective film body 1 are located at the edges. Preferably, the width of these uncovered edge areas 21 can be 5-15 mm.

[0026] As shown in Figure 2, when testing the UV-proof mobile phone protective film of the present invention, the testing method is as follows: the protective film body 1 with the release protective plate 2 is directly placed under sunlight or other ultraviolet light sources for irradiation. The uncovered area 21 on the release protective plate 2 will change color under the light (the shaded area in Figure 2), and the area covered by the protective film body 1 will not change color due to the UV protection of the protective film body 1.

[0027] During sales demonstrations, the protective film product manufactured by the present invention can be placed directly under sunlight or other ultraviolet light sources without separating the protective film body 1 from the release protective plate 2. The areas of the release protective plate 2 not covered by the protective film will change color, while the areas covered by the protective film will not. This allows consumers to directly observe the effect without damaging the protective film product.

[0028] As shown in FIG. 3 , in order to protect the protective film body 1 , a release film 11 may be further covered on the other surface of the protective film body 1 opposite to the release protective film 2 .

[0029] As shown in FIG4 , this is a second embodiment of the present invention, in which the centrifugal protection plate 2 has an extension 22 relative to the protection membrane body 1, and the extension 22 serves as an uncovered area 21. During demonstration, the area of ​​the extension 22 will change color.

[0030] In summary, the present invention integrates the detection of anti-ultraviolet function directly into the mobile phone protective film product. During detection, there is no need to separate the release protective plate 2 from the protective film body 1, which does not damage the product and does not affect sales. At the same time, consumers can intuitively observe the anti-ultraviolet effect of the product.

[0031] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made based on the structure, features and principles described in the scope of the patent application of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. It has an anti-ultraviolet mobile phone protective film, which includes: The anti-ultraviolet protective film body and the release protective plate attached to the surface of the protective film body are characterized in that: the release protective plate contains ultraviolet color-changing material, and the area of ​​the release protective plate is larger than the area of ​​the protective film body, so that at least part of the release protective plate is not covered by the protective film body.

2. The UV protection mobile phone protective film according to claim 1, characterized in that: The release protection plate comprises: a transparent or light-transmitting plastic carrier plate, and an ultraviolet color-changing coating or film compounded on the plastic carrier plate.

3. The UV protection mobile phone protective film according to claim 1, characterized in that: The raw material of the release protection plate contains ultraviolet color-changing powder, and the release protection plate containing ultraviolet color-changing material is formed by injection molding.

4. The UV protection mobile phone protective film according to claim 1, characterized in that: The protective film body is located in the middle area of ​​the release protective plate, and the area of ​​the release protective plate not covered by the protective film body is located in the edge area.

5. The UV protection mobile phone protective film according to claims 1-4, characterized in that: The detection method of the mobile phone protective film with anti-ultraviolet light is as follows: the protective film body with the release protective plate is directly placed under sunlight or other ultraviolet light sources for irradiation, and the area on the release protective plate not covered by the protective film body will change color under the light irradiation, while the area covered by the protective film body will not change color due to the ultraviolet protection of the protective film body.

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