Mobile phone peep-proof film flexible island area filling structure and method

Abstract

The invention discloses a mobile phone peep-proof film flexible island area filling structure and method, and particularly relates to the technical field of mobile phone accessories, the mobile phone peep-proof film flexible island area filling structure comprises a peep-proof film and a flexible island area filling layer, the peep-proof film is composed of an optical grade polyester film with a micro shutter structure, and has high transparency and a good peep-proof effect; and the flexible island area filling layer is made of an elastic light-transmitting material, preferably a silica gel-based transparent elastomer, has high light transmittance, can uniformly scatter and refract light, ensures a good visual effect, and has enough toughness. According to the mobile phone anti-peeping film flexible island area filling structure and method, the overall anti-peeping performance of a mobile phone anti-peeping film is remarkably improved, more reliable privacy protection is provided for a user, after the anti-peeping film is attached to a mobile phone screen, the clear and bright display effect can still be kept, the problems of falling off, deformation and the like are not prone to occurring, and the service life of the mobile phone anti-peeping film is prolonged. The service life of the product is prolonged, and better visual experience is brought to users.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone accessories, and in particular to a filling structure and method for a smart island region of a mobile phone privacy film. Background Art

[0002] In recent years, smart phones have been constantly innovating in appearance and function. The Smart Island design, represented by Apple mobile phones, has become a major breakthrough in mobile phone screen design. Smart Island uses the traditional "bangs" area on the top of the mobile phone through clever UI interaction design, integrates multiple components such as the front camera and sensors, and brings a novel interactive experience to users.

[0003] However, existing mobile phone privacy films face many technical difficulties when applied to such mobile phones with the Smart Island design. On the one hand, the Smart Island area has an irregular shape, and ordinary privacy films are difficult to accurately fit, resulting in light leakage in this area. When users use their mobile phones in public places, others may see the screen content in the Smart Island area from a specific angle, which greatly reduces the privacy function of the privacy film. On the other hand, due to the poor fit between the privacy film and the Smart Island area, it not only affects the overall aesthetics of the mobile phone, but may also cause light to refract or scatter at the gap, interfering with the normal display of the screen and reducing the user's visual experience.

[0004] In addition, most of the anti-peeping films on the market currently have the anti-peeping layer of the Smart Island area hollowed out. This design has at least two or more defects: first, the Smart Island area is easily broken by impact after being hollowed out; second, when using a mobile phone with a hollow design in an environment with a large temperature difference in winter, when taking pictures with the front camera, the photo effect will be affected due to fogging.

[0005] At present, there are few solutions to this problem on the market. Some solutions simply cut the privacy film to fit the smart island area, but this method cannot fundamentally solve the problems of light leakage and loose fitting. Therefore, developing a technical solution that can effectively solve the problem of filling the smart island area of ​​mobile phone privacy films is of great significance to improving the performance and user experience of mobile phone privacy films. Summary of the invention

[0006] The main purpose of the present invention is to provide a filling structure and method for the smart island area of ​​a mobile phone anti-peep film, which can effectively solve the problems of the mobile phone anti-peep film being fragile when the hollow smart island area is impacted, light leakage, inconsistent anti-peep effect, and fogging due to temperature difference in the shooting environment affecting the effect of the front camera.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A mobile phone anti-peep film smart island area filling structure, characterized in that it includes an anti-peep film, tempered glass, a high-definition small glue and a high-definition large glue. The anti-peep film blocks side light within a horizontal viewing angle of 28°. The anti-peep glue has a smart island area. The high-definition small glue and the smart island area opened by the anti-peep glue are the same size. The tempered glass is provided with a silk-screen circle matching the smart island area of ​​the anti-peep layer.

[0009] Preferably, the width of the silk-screen circle is 0.2-0.3 mm, and the privacy film is made of an advanced optical-grade polyester film with a micro-louver structure.

[0010] Preferably, the inner cavity of the smart island area is bonded to the high-definition small glue.

[0011] Preferably, the lower side of the anti-peeping glue is in contact with the upper side of the high-definition large glue.

[0012] Preferably, the tempered glass is bonded to the anti-peeping layer, and the silk-screen circle covers the smart island area of ​​the anti-peeping layer. The high-definition small glue and the high-definition large glue are both made of OCA optical glue, and the light transmittance is 96%-98%.

[0013] A method for filling a smart island area of ​​a mobile phone privacy film, the method is as follows:

[0014] a. Scan the mobile phone screen and the smart island area with a high-precision 3D laser scanner to obtain detailed 3D data and build a matching model.

[0015] b. Use high-precision laser cutting technology to accurately cut the OCA optical glue island area, and the resulting filling layer is the high-definition small glue, which is accurately attached to the opening area of ​​the anti-peep film. In addition, by silk-screening the edge of the tempered glass island area, an edge ring with a width of 0.2-0.3mm is formed to further enhance the structural stability of the anti-peep film. After the filling layer is installed, use high-precision two-dimensional measuring equipment to accurately detect its size to ensure that the fitting accuracy of the filling layer and the anti-peep film is within ±0.1mm.

[0016] c. Use OCA optical transparent glue to bond the filling layer and the privacy film to ensure a firm connection between the two and minimize the impact on light propagation. When using OCA optical glue during the connection process, ensure that its refractive index matches the privacy film and filling layer material to minimize refraction and reflection.

[0017] d. Finally, the filling layer is precisely bonded to the anti-peep film and tempered glass to form an integrated anti-peep tempered protective film.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Through the carefully designed smart island filling layer (high-definition small film), the shape and size of the smart island area are accurately matched, effectively filling the gap of the anti-peep film in this area, completely solving the light leakage problem, so that the smart island area has the same good anti-peep effect as other parts of the screen within the set viewing angle range, significantly improving the overall anti-peep performance of the mobile phone anti-peep film, and providing users with more reliable privacy protection.

[0020] 2. The high-definition small film adopts elastic materials with high light transmittance and special optical properties. It can not only ensure the normal light transmittance of the screen, but also evenly process the light, reduce the refraction and scattering of light at the gaps, thereby avoiding interference with the screen display. This allows the mobile phone screen to maintain a clear and bright display effect after the anti-peep film is affixed, bringing users a better visual experience.

[0021] 3. The structure and method of the present invention can achieve wide adaptation to a variety of mobile phones with Smart Island designs through precise measurement and targeted design of the Smart Island area of ​​different models of mobile phones. No matter they are different brands or different models of the same brand, it only needs to make corresponding adjustments based on their specific Smart Island data to produce adapted anti-peep film products, which greatly improves the versatility and market competitiveness of the products.

[0022] 4. A special connection structure and high-quality high-transmittance OCA optical glue are used to ensure that the connection between the privacy film and the filling layer of the smart island is firm and reliable. At the same time, the filling layer material has good wear resistance and anti-aging properties, and can maintain stable performance during long-term use. It is not easy to fall off, deform, and other problems, which extends the service life of the product and improves the stability and reliability of the product.

[0023] 5. It turns out that products on the market that do not have filled anti-peep holes in the Smart Island area will be affected by fogging when taking photos in an environment with a large temperature difference. However, products that have high-transmittance OCA optical glue affixed to the Smart Island area will not have any impact when taking photos with the front camera, and the realism will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the anti-peeping tempered glass film of the present invention;

[0025] Figure 2 This is a disassembled diagram of the anti-peep tempered glass film of the present invention.

[0026] In the picture: 1. Tempered glass; 2. Anti-peeping glue; 3. High-definition small glue; 4. High-definition large glue. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figure 1-2 As shown, the filling structure of the mobile phone privacy film smart island area is characterized in that it includes a privacy film, tempered glass, a high-definition small glue and a high-definition large glue. The privacy film blocks side light within a horizontal viewing angle of 28°. The privacy glue has a smart island area. The size of the smart island area opened by the high-definition small glue and the privacy glue is the same. The tempered glass is provided with a silk-screen circle matching the smart island area of ​​the privacy layer.

[0029] The width of the silk-screen circle is 0.2-0.3mm. The anti-peep film is made of advanced optical-grade polyester film with a micro-louver structure. The inner cavity of the smart island area is bonded to the high-definition small glue, the lower side of the anti-peep glue is bonded to the upper side of the high-definition large glue, the tempered glass is bonded to the anti-peep layer, and the silk-screen circle covers the smart island area of ​​the anti-peep layer. The high-definition small glue and the high-definition large glue are both made of OCA optical glue, and the light transmittance is 96%-98%.

[0030] The privacy film is made of advanced optical-grade polyester film with a micro-louver structure. This material has undergone special optical treatment, and its micro-louver structure can effectively block light within a horizontal viewing angle of 28°, so that people viewing the screen from the side cannot clearly see the screen content, thereby achieving a good privacy protection effect. At the same time, the material has high transparency, and has little effect on the clarity and color reproduction of the screen display when viewed from the front. The transmittance can reach more than 86%. The size of the privacy film precisely matches the part of the mobile phone screen except the smart island area. Through high-precision mold making and cutting technology, it ensures that its edge fits tightly with the edge of the mobile phone screen, and the error is controlled within ±0.1mm. The thickness of the privacy film is optimized according to actual needs, generally between 0.55-0.65mm, which can not only ensure good privacy protection performance, but also will not make the mobile phone screen appear too thick.

[0031] The high-definition small film is the filling layer of the Smart Island area. It is made of elastic light-transmitting material, preferably a silicone-based transparent elastomer, with high light transmittance and can evenly scatter and refract light to ensure good visual effects and has sufficient toughness. The thickness of the Smart Island filling layer is adjusted according to different mobile phone models and can seamlessly match the shape and size of the Smart Island area. The Smart Island filling layer is seamlessly adapted to the contour of the Smart Island area through three-dimensional scanning and precise modeling to ensure good filling effects. The light transmittance of the filling layer material is 96%-98%, which can ensure the clarity of the screen display effect without affecting the photo-taking effect of the front camera.

[0032] In addition, the material also has good toughness, which solves the problem of broken screens when the hollowing is hit. The shape of the filling layer is determined by three-dimensional scanning and precise modeling of the smart island area of ​​different mobile phone models, and seamlessly matches the contour of the smart island area. Its thickness varies depending on the model of the mobile phone, generally between 0.55-0.65 mm. For example, for the i Phone14Pro series of mobile phones, the thickness of the filling layer has been optimized to 0.55mm, which can completely cover the gap in the smart island area without affecting the optical performance and signal transmission of components such as the front camera and sensors of the mobile phone.

[0033] A connecting structure is set between the privacy film and the smart island filling layer, using a specially developed OCA optical transparent glue, which has the characteristics of high viscosity, low volatility, and non-corrosiveness. The viscosity strength has been strictly tested to ensure that the privacy film and the smart island filling layer are firmly connected during daily use and are not easy to separate. At the same time, the optical properties of the OCA optical glue have been optimized, and its refractive index matches the privacy film and filling layer materials. Refraction and reflection are minimized during light propagation, minimizing the impact on the screen display effect. The connecting structure uses OCA optical glue to fit and stack to fill the hollowed-out smart island area of ​​the privacy film, and a silk-screen area with a width of 0.2-0.3mm is silk-screened on the surface tempered glass to cover the opening edge of the smart island of the privacy layer, presenting structural consistency as a whole.

[0034] In detail, first, a high-precision 3D laser scanner is used to perform a full-scale scan of the i Phone15Pro mobile phone screen and the Smart Island area. During the scanning process, in order to ensure the accuracy of the data, the mobile phone is placed on a high-precision rotating platform and scanned from multiple angles to obtain complete 3D data. After the scan is completed, the data is processed and analyzed to remove noise and errors to obtain accurate size and shape information of the mobile phone screen and the Smart Island area.

[0035] The processed data is imported into the CAD software. In the software, an accurate model of the i Phone15Pro mobile phone screen and the Smart Island area is constructed according to the actual data. In the process of building the model, the front camera, sensor and other components in the Smart Island area are accurately modeled, and their positions and sizes are marked. Then, based on the model of the Smart Island area, a matching Smart Island filling layer model is designed. When designing the filling layer model, the thickness of the filling layer is optimized taking into account the curvature changes and component distribution of the Smart Island area of ​​the i Phone15Pro mobile phone. The thickness of the filling layer is appropriately thinned in positions close to the camera and sensor to avoid affecting its optical performance and signal transmission; in other areas, a good filling effect is ensured. At the same time, a model of the connection structure is designed to determine the position and thickness of the optical glue, as well as the specific method of combining edge wrap-around and local bonding.

[0036] Cooperate with professional material suppliers to customize OCA optical adhesive transparent elastomer materials according to the performance requirements of the filling layer, improve the light transmittance and uniform scattering performance of the material, and determine the final material formula so that its various performance indicators meet the design requirements.

[0037] The smart island area of ​​the 28-degree privacy glue is cut out with a laser, the privacy glue is bonded with the OCA optical glue, and then a small filling model block of the same size as the smart island is cut with the OAC optical glue mold, and then the small model block is precisely bonded to the opening smart island area of ​​the privacy glue, and a silk-screen area with a width of 0.2 to 0.3mm is silk-screened on the smart island area of ​​the tempered glass. Finally, the privacy glue bonded to the smart island filling area is bonded to the tempered glass to form a complete privacy tempered glass film.

[0038] Next, quality inspection:

[0039] Appearance inspection: First, use the naked eye and an optical microscope to inspect the appearance of the privacy film with the Smart Island filling layer to check whether the connection between the filling layer and the privacy film is flat and smooth, and whether there are defects such as glue overflow, bubbles or gaps. At the same time, observe whether there are scratches, impurities or deformations on the surface of the filling layer to ensure that the product appearance quality meets the requirements.

[0040] Dimensional accuracy detection: Use high-precision two-dimensional measurement to detect the dimensions of the privacy film and the filling layer of the smart island, including length, width, thickness, and the relative position of the filling layer and the privacy film, and compare them with the design dimensions. The dimensional deviation is required to be controlled within ±0.1mm to ensure that the dimensional accuracy of the product meets the design requirements.

[0041] Anti-peeping performance test: Attach the anti-peeping film with the Smart Island filling layer to the mobile phone screen, and use professional anti-peeping performance testing equipment to test the screen display content at different viewing angles. It is required that within the horizontal viewing angle range of ±30°-±45°, the screen content cannot be clearly seen when viewing the screen from the side, and the anti-peeping effect of the Smart Island area is consistent with that of other areas of the anti-peeping film to ensure that the product's anti-peeping performance meets the requirements.

[0042] Display effect detection: Use high-precision screen display test equipment to test the brightness, contrast, color reproduction and other parameters of the mobile phone screen after the anti-peep film is applied. Compare the screen parameters with those without the anti-peep film, and require that the brightness change does not exceed ±5%, the contrast change does not exceed ±3%, and the color reproduction deviation is ≤2 to ensure that the anti-peep film has little effect on the screen display effect. For products that fail the test, classify and record them according to the defect type, analyze the cause, take corresponding repair measures or scrap them.

[0043] The laminated products are subjected to processes such as defoaming, appearance inspection, and trial pasting to ensure that the air can be automatically exhausted in one go when the real machine is tried, and the realism when taking pictures is not affected.

[0044] A method for filling a smart island area of ​​a mobile phone privacy film, the method is as follows:

[0045] a. Scan the mobile phone screen and the smart island area with a high-precision 3D laser scanner to obtain detailed 3D data and build a matching model.

[0046] b. Use high-precision laser cutting technology to accurately cut the OCA optical glue island area, and the resulting filling layer is the high-definition small glue, which is accurately attached to the opening area of ​​the anti-peep film. In addition, by silk-screening the edge of the tempered glass island area, an edge ring with a width of 0.2-0.3mm is formed to further enhance the structural stability of the anti-peep film. After the filling layer is installed, use high-precision two-dimensional measuring equipment to accurately detect its size to ensure that the fitting accuracy of the filling layer and the anti-peep film is within ±0.1mm.

[0047] c. Use OCA optical transparent glue to bond the filling layer and the privacy film to ensure a firm connection between the two and minimize the impact on light propagation. When using OCA optical glue during the connection process, ensure that its refractive index matches the privacy film and filling layer material to minimize refraction and reflection.

[0048] d. Finally, the filling layer is precisely bonded to the anti-peep film and tempered glass to form an integrated anti-peep tempered protective film.

[0049] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A filling structure of the smart island area of ​​a mobile phone privacy film, characterized in that: It includes an anti-peeping film, tempered glass, a high-definition small glue and a high-definition large glue. The anti-peeping film blocks side light within a horizontal viewing angle of 28°. The anti-peeping glue has a smart island area. The smart island areas of the high-definition small glue and the anti-peeping glue are the same size. The tempered glass is provided with a silk-screen circle matching the smart island area of ​​the anti-peeping layer.

2. The mobile phone privacy film smart island area filling structure according to claim 1, characterized in that: The width of the silk-screen circle is 0.2-0.3 mm, and the privacy film is made of an advanced optical-grade polyester film with a micro-louver structure.

3. The mobile phone privacy film smart island area filling structure according to claim 1, characterized in that: The inner cavity of the smart island area is bonded with a high-definition small glue.

4. The mobile phone privacy film smart island area filling structure according to claim 1, characterized in that: The lower side of the anti-peeping glue is attached to the upper side of the high-definition large glue.

5. The mobile phone privacy film smart island area filling structure according to claim 1, characterized in that: The tempered glass is bonded to the anti-peeping layer, and the silk-screen circle covers the smart island area of ​​the anti-peeping layer. The high-definition small glue and the high-definition large glue are both made of OCA optical glue, and the light transmittance is 96%-98%.

6. A method for filling the smart island area of ​​a mobile phone privacy film, the method is as follows: a. Scan the mobile phone screen and the smart island area with a high-precision 3D laser scanner to obtain detailed 3D data and build a matching model. b. Use high-precision laser cutting technology to accurately cut the OCA optical glue island area, and the resulting filling layer is the high-definition small glue, which is accurately attached to the opening area of ​​the anti-peep film. In addition, by silk-screening the edge of the tempered glass island area, an edge ring with a width of 0.2-0.3mm is formed to further enhance the structural stability of the anti-peep film. After the filling layer is installed, use high-precision two-dimensional measuring equipment to accurately detect its size to ensure that the fitting accuracy of the filling layer and the anti-peep film is within ±0.1mm. c. Use OCA optical transparent glue to bond the filling layer and the privacy film to ensure a firm connection between the two and minimize the impact on light propagation. When using OCA optical glue during the connection process, ensure that its refractive index matches the privacy film and filling layer material to minimize refraction and reflection. d. Finally, the filling layer is precisely bonded to the anti-peep film and tempered glass to form an integrated anti-peep tempered protective film.

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