Mobile phone screen die cutting diaphragm with shielding effect

By designing a die-cut film for mobile phone screens with optical glass and conductive silicone rubber materials, the assembly difficulty and reliability issues caused by copper foil bonding were solved, achieving efficient electromagnetic shielding and structural stability, and improving the display effect and service life of mobile phone screens.

CN223701940UActive Publication Date: 2025-12-23SUZHOU W B ROYMAX ELECTRONICS TECH
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Patent Information

Application Number
CN202422918115.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-12-23
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

The electromagnetic shielding of existing screen installation locations is generally achieved by pasting copper foil, which increases the difficulty of terminal assembly and maintenance, and is prone to cracking or falling off, reducing the reliability of the screen's electromagnetic shielding structure.

Method used

The mobile phone screen uses a die-cut film structure composed of optical glass, polarizer, conductive film, brightness enhancement film, and light-shielding black and white adhesive. Through the design of optical film and screen sleeve, the display effect and sealing performance are enhanced. Conductive silicone rubber material is used to provide electromagnetic shielding. Combined with TPF protective film, touch screen, heat dissipation film assembly and other components, the touch screen is protected and supported, and the structural stability and shock resistance are enhanced.

Benefits of technology

It improves screen display clarity and electromagnetic shielding, enhances the sealing and shock resistance of the diaphragm, extends service life, protects internal electronic components, and improves the stability and security of the phone.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mobile phone screen die cutting diaphragm with a shielding effect, which mainly comprises a plurality of components such as optical glass, a polaroid, an optical film, a conductive adhesive film, a touch screen, a PRT support film and shading black and white adhesive, a screen rubber sleeve is arranged on the outer side of the optical film and is made of a conductive silicone rubber material, a side blocking groove is arranged on the side surface corresponding to the edge radian of the optical glass, and the screen rubber sleeve is made of a conductive silicone rubber material. The TPF protective film is arranged at the top of the conductive adhesive film, the touch screen is arranged at the bottom of the conductive adhesive film, the PRT supporting film is arranged below the touch screen, the heat dissipation film assembly is arranged at the bottom of the shading black and white adhesive, the PU buffer film is arranged at the top of the shading black and white adhesive film, the steel film and the titanium alloy film are sequentially arranged below the shading black and white adhesive film, the first adhesive film is arranged at the bottom of the polaroid, and the second adhesive film is arranged at the bottom of the PRT supporting film. The screen display effect is enhanced, good protection is provided, impurities are prevented from entering, electromagnetic interference is shielded, heat dissipation is effective, shock resistance and buffering are achieved, the performance of the mobile phone screen can be remarkably improved, and the service life of the mobile phone screen can be remarkably prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of mobile phone screen die cutting film piece, concretely relates to a mobile phone screen die cutting film piece with shielding effect. BACKGROUND

[0002] The mobile phone screen die cutting film piece is the main window of mobile phone content output, can show various information such as mobile phone system, application program to user, when opening the photo album application of mobile phone, the screen will present the photo in the form of high definition, show the details, color content of photo.

[0003] But the electromagnetic shielding of the screen installation position generally adopts the mode of pasting copper foil, however, the large-area pasting copper foil not only increases the assembly and maintenance difficulty of the terminal, but also is easy to produce crack or fall off, reduces the reliability of the terminal screen electromagnetic shielding structure. UTILITY MODEL CONTENT

[0004] The utility model discloses a mobile phone screen die cutting film piece with shielding effect, to solve the electromagnetic shielding of the screen installation position generally adopts the mode of pasting copper foil in the background art, however, the large-area pasting copper foil not only increases the assembly and maintenance difficulty of the terminal, but also is easy to produce crack or fall off, reduces the reliability of the terminal screen electromagnetic shielding structure.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a mobile phone screen die cutting film piece with shielding effect, including optical glass;

[0006] The bottom position of the optical glass is provided with a polaroid, the bottom position of the polaroid is provided with a conductive adhesive film, the bottom position of the conductive adhesive film is provided with a light enhancement film, and the bottom position of the light enhancement film is provided with a light-shielding black and white adhesive;

[0007] The middle position of the optical glass and the polaroid is provided with an optical adhesive sheet, and the outer position of the optical adhesive sheet is provided with a screen adhesive sleeve.

[0008] Preferably, the top position of the optical adhesive sheet is provided with optical transparent adhesive, and the bottom position of the optical adhesive sheet is provided with rubber single-sided adhesive.

[0009] Preferably, the side position of the screen adhesive sleeve is provided with a side blocking groove, and the screen adhesive sleeve corresponds to the edge arc of the optical glass.

[0010] Preferably, the side blocking groove corresponds to the thickness of the bottom of the optical glass, and the screen adhesive sleeve is made of conductive silicone rubber material.

[0011] Preferably, the conductive adhesive film is provided with a TPF protective film at the top position, a touch screen at the bottom position, and a PRT support film at the bottom position of the touch screen.

[0012] Preferably, the light-shielding black and white adhesive is provided with a heat dissipation film assembly at the bottom position, a PU buffer film at the top position of the heat dissipation film assembly, a steel film below the PU buffer film, and a titanium alloy film at the bottom position of the steel film.

[0013] Preferably, the polarizer is provided with a first adhesive film at the bottom position, and a second adhesive film at the bottom position of the PRT support film.

[0014] Compared with the prior art, the mobile phone screen cutting film with shielding effect has the following beneficial effects:

[0015] By means of the optical film, the screen rubber sleeve, the optical transparent adhesive, the rubber single-sided adhesive, and the side blocking groove, the optical film is arranged between the optical glass and the polarizer, the display effect of the screen is enhanced, the image clarity and color restoration are improved, the optical film is provided with the screen rubber sleeve outside to prevent scratches and damage from the outside, the optical film is provided with the optical transparent adhesive on the top to ensure the close fit between the optical film and the optical glass, reduce light reflection and scattering, improve the brightness and contrast of the screen, the optical film is provided with the rubber single-sided adhesive on the bottom to increase the adhesion between the optical film and the polarizer, prevent the optical film from moving or falling off during use, the screen rubber sleeve is provided with the side blocking groove on the side to effectively prevent dust, water vapor and other impurities from entering the film, protect the mobile phone screen, the screen rubber sleeve corresponds to the edge curvature of the optical glass to ensure the perfect fit between the film and the mobile phone screen, improve the aesthetic appearance and use experience, the side blocking groove corresponds to the thickness of the bottom of the optical glass to further enhance the sealing performance of the film, prevent impurities from entering, the screen rubber sleeve is made of conductive silicone rubber material and has good conductivity, can shield electromagnetic interference, protect the electronic components inside the mobile phone, and the conductive silicone rubber material also has the advantages of softness, wear resistance, high temperature resistance and the like, can prolong the service life of the film.

[0016] By the setting of TPF protection film, touch screen, PRT supporting film, shading black and white adhesive, heat dissipation film assembly, PU buffer film, steel film and titanium alloy film, the TPF protection film is arranged on the top of the conductive adhesive film, which can effectively protect the conductive adhesive film from scratches and damage from the outside, prolong the service life of the conductive adhesive film, prevent impurities such as dust and water vapor from entering the conductive adhesive film, ensure the stability of the conductive performance, the touch screen is arranged at the bottom of the conductive adhesive film, so that the mobile phone screen film piece can work well with the mobile phone touch screen, without affecting the sensitivity and response speed of the touch screen, the conductive adhesive film can provide certain electromagnetic shielding effect for the touch screen, reduce the influence of external electromagnetic interference on the touch screen, the PRT supporting film is arranged at the bottom of the touch screen, which provides support and protection for the touch screen, prevents the touch screen from being damaged when subjected to external force, helps to improve the structural stability of the whole film piece, so that it is not easy to deform in the use process, the heat dissipation film assembly is arranged at the bottom of the shading black and white adhesive, which can effectively dissipate the heat generated by the mobile phone screen, reduce the temperature of the mobile phone, protect the internal electronic elements of the mobile phone, improve the use stability and service life of the mobile phone, avoid performance degradation or failure caused by overheating, the PU buffer film is arranged on the top of the heat dissipation film assembly, which can play a buffering role, reduce the influence of external impact on the heat dissipation film assembly and the mobile phone screen, enhance the shock resistance of the film piece, improve the safety of the mobile phone in the case of accidental falling, the steel film is arranged below the PU buffer film, which provides certain strength and rigidity for the film piece, prevents the film piece from being easily scratched or damaged in the use process, helps to improve the flatness of the film piece, so that it can better fit the mobile phone screen, the titanium alloy film is arranged at the bottom of the steel film, and the titanium alloy has the advantages of high strength and corrosion resistance, which can further enhance the durability of the film piece, provide additional protection for the mobile phone screen, and prevent scratches and impacts from sharp objects. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model.

[0018] Figure 2 It is a structural schematic view of the conductive adhesive film in the utility model.

[0019] Figure 3 It is a structural schematic view of the screen adhesive sleeve in the utility model.

[0020] Figure 4 It is a structural schematic view of the heat dissipation film assembly in the utility model.

[0021] Figure 5 It is a structural schematic view of the polaroid in the utility model.

[0022] Figure 6 It is a structural schematic view of the screen adhesive sleeve in the utility model.

[0023] In the figure: 1, optical glass; 2, optical film; 3, screen rubber sleeve; 4, conductive adhesive film; 5, light enhancement film; 6, light shielding black and white adhesive; 7, polaroid; 8, TPF protective film; 9, PRT supporting film; 10, optical transparent adhesive; 11, rubber single-sided adhesive; 12, touch screen; 13, heat dissipation film assembly; 14, PU buffer film; 15, steel film; 16, titanium alloy film; 17, first adhesive film; 18, second adhesive film; 19, side blocking groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] The utility model provides a kind of mobile phone screen die film with shielding effect as shown in Figures 1-6 It comprises optical glass 1;

[0026] Optical glass 1 bottom position is provided with polaroid 7, polaroid 7 bottom position is provided with conductive adhesive film 4, conductive adhesive film 4 bottom position is provided with light enhancement film 5, light enhancement film 5 bottom position is provided with light shielding black and white adhesive 6;

[0027] Optical glass 1 and polaroid 7 middle position are provided with optical film 2, and optical film 2 outer position is provided with screen rubber sleeve 3.

[0028] Optical film 2 top position is provided with optical transparent adhesive 10, and optical film 2 bottom position is provided with rubber single-sided adhesive 11.

[0029] Screen rubber sleeve 3 side position is provided with side blocking groove 19, and screen rubber sleeve 3 corresponds with the edge curvature of optical glass 1.

[0030] Side blocking groove 19 corresponds with the thickness of optical glass 1 bottom, and screen rubber sleeve 3 is made of conductive silicone rubber material.

[0031] Conductive adhesive film 4 top position is provided with TPF protective film 8, conductive adhesive film 4 bottom position is provided with touch screen 12, and touch screen 12 bottom position is provided with PRT supporting film 9.

[0032] Light shielding black and white adhesive 6 bottom position is provided with heat dissipation film assembly 13, heat dissipation film assembly 13 top position is provided with PU buffer film 14, PU buffer film 14 lower position is provided with steel film 15, and steel film 15 bottom position is provided with titanium alloy film 16.

[0033] The first adhesive film 17 is arranged at the bottom position of the polarizing sheet 7, and the second adhesive film 18 is arranged at the bottom position of the PRT supporting film 9.

[0034] In this embodiment, the specific implementation steps of the mobile phone screen die-cut film with shielding effect are as follows: carefully take out the mobile phone screen die-cut film from the package, pay attention not to touch the adhesive surface of the film, align the top of the film with the top of the mobile phone screen, then slowly put down the film to make it adhere to the mobile phone screen, ensure that the optical glass 1 completely adheres to the mobile phone screen without bubbles and wrinkles, if the position is found to be inaccurate during the adhering process, gently lift the film, adjust the position, then adhere again, use a clean soft cloth or card as a tool to gently press the film from the center to the edge to expel air, ensure that the film tightly adheres to the mobile phone screen, especially the edge part of the screen rubber sleeve 3, which should be ensured to completely adhere to the edge of the mobile phone screen to improve the shielding effect and protection performance, after the adhering is completed, check whether the film is flat, bubble-free and wrinkle-free, at the same time, check whether the touch function of the screen is normal and whether the shielding effect meets the expectation, avoid touching or pressing the film immediately after the film is pasted to avoid affecting the pasting effect.

[0035] As shown in Figure 1 and Figure 2 , the optical adhesive sheet 2 is arranged at the middle position of the optical glass 1 and the polarizing sheet 7, the screen rubber sleeve 3 is arranged at the outer position of the optical adhesive sheet 2, the optical transparent adhesive 10 is arranged at the top position of the optical adhesive sheet 2, the rubber single-sided adhesive 11 is arranged at the bottom position of the optical adhesive sheet 2, the side blocking groove 19 is arranged at the side position of the screen rubber sleeve 3, the screen rubber sleeve 3 corresponds to the edge curvature of the optical glass 1, the side blocking groove 19 corresponds to the bottom thickness of the optical glass 1, and the screen rubber sleeve 3 is made of conductive silicone rubber material.

[0036] Preferably, the optical glass 1 and the polarizing sheet 7 are provided with the optical film 2, which can enhance the display effect of the screen, improve the clarity and color restoration of the image, the optical film 2 is provided with the screen rubber sleeve 3 outside, which provides protection for the optical film 2 and prevents it from being scratched and damaged by the outside world, the optical film 2 is provided with the optical transparent adhesive 10 at the top, which ensures the close fit between the optical film 2 and the optical glass 1, reduces the reflection and scattering of light, and improves the brightness and contrast of the screen, the optical film 2 is provided with the rubber single-sided adhesive 11 at the bottom, which increases the adhesion between the optical film 2 and the polarizing sheet 7, prevents the optical film 2 from shifting or falling off during use, the screen rubber sleeve 3 is provided with the side blocking groove 19 on the side, which can effectively prevent dust, water vapor and other impurities from entering the inside of the film, protect the phone screen, the screen rubber sleeve 3 corresponds to the edge curvature of the optical glass 1, which ensures the perfect fit of the film and the phone screen, improves the aesthetic and use experience, the side blocking groove 19 corresponds to the thickness of the bottom of the optical glass 1, which further enhances the sealing performance of the film and prevents impurities from entering, the screen rubber sleeve 3 is made of conductive silicone rubber material, which has good conductivity and can shield electromagnetic interference, protect the electronic components inside the phone, at the same time, the conductive silicone rubber material also has the advantages of softness, wear resistance, high temperature resistance and the like, which can prolong the service life of the film.

[0037] As shown in Figure 1 and Figure 2 , the conductive adhesive film 4 is provided with a TPF protective film 8 at the top position, a touch screen 12 at the bottom position, a PRT support film 9 at the bottom position of the touch screen 12, a heat dissipation film assembly 13 at the bottom position of the light-shielding black and white adhesive 6, a PU buffer film 14 at the top position of the heat dissipation film assembly 13, a steel film 15 below the PU buffer film 14, and a titanium alloy film 16 at the bottom position of the steel film 15.

[0038] Preferably, the conductive adhesive film 4 is provided with a TPF protective film 8 on top, which can effectively protect the conductive adhesive film 4 from scratches and damage from the outside, prolong the service life of the conductive adhesive film 4, prevent impurities such as dust and water vapor from entering the conductive adhesive film 4, and ensure the stability of its conductivity. The conductive adhesive film 4 is provided with a touch screen 12 at the bottom, which allows the mobile phone screen module to work well with the touch screen and does not affect the sensitivity and response speed of the touch screen. The conductive adhesive film 4 can provide certain electromagnetic shielding for the touch screen 12, reducing the impact of external electromagnetic interference on the touch screen. The touch screen 12 is provided with a PRT support film 9 at the bottom, which provides support and protection for the touch screen 12, preventing it from being damaged when subjected to external forces, and helps to improve the structural stability of the entire film, making it less likely to deform during use. The light-shielding black and white adhesive 6 is provided with a heat dissipation film assembly 13 at the bottom, which can effectively dissipate the heat generated by the mobile phone screen, reducing the temperature of the mobile phone, protecting the internal electronic components, and improving the stability and lifespan of the mobile phone. The heat dissipation film assembly 13 is provided with a PU buffer film 14 on top, which can act as a buffer to reduce the impact of external shocks on the heat dissipation film assembly 13 and the mobile phone screen, enhance the shock resistance of the film, and improve the safety of the mobile phone in the event of accidental drops. The PU buffer film 14 is provided with a steel film 15 below, which provides certain strength and rigidity to the film, preventing it from being easily scratched or damaged during use, and helps to improve the flatness of the film, making it better fit the mobile phone screen. The steel film 15 is provided with a titanium alloy film 16 at the bottom, which has high strength and corrosion resistance, further enhancing the durability of the film and providing additional protection for the mobile phone screen, preventing scratches and impacts from sharp objects.

[0039] As shown in Figure 1 and Figure 2 , the first adhesive film 17 is provided at the bottom of the polarizing sheet 7, and the second adhesive film 18 is provided at the bottom of the PRT support film 9.

[0040] Optionally, the first adhesive film 17 is provided at the bottom of the polarizing sheet 7, which can better fix the polarizing sheet 7 in place and prevent it from shifting or falling off during use, protecting the polarizing sheet 7 from scratches and damage from the outside. The second adhesive film 18 is provided at the bottom of the PRT support film 9, enhancing the connection stability between the PRT support film 9 and other components, ensuring the firmness of the entire film structure, and protecting the PRT support film 9 from external factors.

[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A mobile phone screen die cutting film with shielding effect, comprising optical glass (1); The bottom of the optical glass (1) is provided with a polaroid (7), the bottom of the polaroid (7) is provided with a conductive adhesive film (4), the bottom of the conductive adhesive film (4) is provided with a light enhancement film (5), and the bottom of the light enhancement film (5) is provided with a light shielding black and white adhesive (6); characterized in that The optical glass (1) and the polaroid (7) are provided with an optical adhesive sheet (2) at the middle position, and the optical adhesive sheet (2) is provided with a screen adhesive sleeve (3) at the outer position.

2. The mobile phone screen die-cut film with shielding effect according to claim 1, characterized in that: The optical adhesive sheet (2) is provided with an optical transparent adhesive (10) at the top position, and the optical adhesive sheet (2) is provided with a rubber single-sided adhesive (11) at the bottom position.

3. The mobile phone screen die-cut film with shielding effect according to claim 2, characterized in that: The screen adhesive sleeve (3) is provided with a side blocking groove (19) at the side position, and the screen adhesive sleeve (3) corresponds to the edge curvature of the optical glass (1).

4. The mobile phone screen die-cut film with shielding effect according to claim 3, characterized in that: The side blocking groove (19) corresponds to the bottom thickness of the optical glass (1), and the screen adhesive sleeve (3) is made of conductive silicone rubber material.

5. The mobile phone screen die-cut film with shielding effect according to claim 1, characterized in that: The top of the conductive adhesive film (4) is provided with a TPF protective film (8), the bottom of the conductive adhesive film (4) is provided with a touch screen (12), and the bottom of the touch screen (12) is provided with a PRT support film (9).

6. The mobile phone screen die-cut film with shielding effect according to claim 1, characterized in that: The bottom of the light shielding black and white adhesive (6) is provided with a heat dissipation film assembly (13), the top of the heat dissipation film assembly (13) is provided with a PU buffer film (14), the bottom of the PU buffer film (14) is provided with a steel film (15), and the bottom of the steel film (15) is provided with a titanium alloy film (16).

7. The mobile phone screen die-cut film with shielding effect according to claim 5, characterized in that: The bottom of the polaroid (7) is provided with a first adhesive film (17), and the bottom of the PRT support film (9) is provided with a second adhesive film (18).