Design method for preventing light leakage at position of camera hole of blind hole screen

Abstract

The invention provides a design method for preventing light leakage at the position of a screen camera hole of a blind hole screen, and relates to the technical field of wireless communication, and the method comprises the following steps: S1, preparing a backlight module; s2, arranging an iron frame at the position of a camera hole of the backlight module; s3, a circle of rubber frame is attached to the edge of the iron frame; s4, filling black glue, measuring a gap between the glue frame and the display glass, adjusting the amount of the black glue according to a measurement result, and uniformly filling the gap with the black glue; s5, the black glue is cured, and the backlight module is placed in a constant temperature box; according to the design, the black glue is accurately filled through automatic equipment, an additional glue dispensing procedure is avoided, the investment of materials and equipment is reduced, the overall cost is reduced, and the manufacturing process of the backlight module is accurately controlled, so that the durability of a product is improved, and the quality problem caused by light leakage is reduced; the expensive investment of dispensing equipment and the use of high-cost thermosetting adhesive are effectively avoided, so that manufacturers with small-batch production can also adopt the technology.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a design method for a blind hole screen to prevent light leakage at a camera hole position of the screen. Background Art

[0002] In modern smartphone screen design, in order to achieve a higher screen-to-body ratio and a more beautiful full-screen effect, many manufacturers have adopted a design of punching a hole in the display to place the front camera. This design is called a "hole-punch screen". This design makes a hole in the corner of the screen specifically for placing the front camera, thus avoiding the traditional bangs screen or water drop screen design, making the screen look neater and more integrated.

[0003] Since the camera needs to be placed under the screen, this requires that the screen must have good sealing between the backlight and the display glass at the camera hole position to prevent light from leaking from the edge of the backlight. This light leakage not only affects the appearance of the screen, but more importantly, because the camera is very sensitive to light, it will directly affect the lighting and shooting effects of the front camera.

[0004] In current industry practice, a common solution is to apply black glue to the center hole of the display, where the backlight and display glass meet, to prevent light leakage. However, this method will increase the cost and complexity of the manufacturing process, thereby reducing the production yield. Secondly, the cost of dispensing equipment is relatively high. For those manufacturers with smaller production volumes, investing in such equipment will cause high costs. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and provide a design method for a blind hole screen to prevent light leakage at the camera hole position of the screen, comprising the following steps: S1, preparing a backlight module, the module comprising a backlight plate and a display glass bonded to the backlight plate; S2. An iron frame is arranged at the camera hole position of the backlight module, and the iron frame is made of magnetic material to facilitate positioning on the backlight module; S3. A plastic frame is attached to the edge of the iron frame. The plastic frame has different thicknesses to accommodate camera holes of different sizes. S4, filling the gap between the glue frame and the display glass with black glue, measuring the gap between the glue frame and the display glass, adjusting the amount of black glue according to the measurement result, and filling the gap with black glue evenly; S5. Cure the black glue and ensure that the glue frame is tightly combined with the display glass to prevent light leakage. Place the backlight module in a constant temperature box and control the temperature and time in the constant temperature box to ensure that the black glue is completely cured.

[0006] The technical effect of adopting the above technical solution is: the thickness adjustability of the glue frame enables the design method to adapt to camera holes of different sizes to ensure the sealing effect, while reducing the use of black glue and reducing material costs.

[0007] As a preferred implementation, in step S1, selecting a backlight panel and a display glass: selecting a suitable backlight panel and a display glass according to product specifications, ensuring that their size and performance parameters meet the design requirements; Then clean the surface: Use a dust-free cloth and special cleaner to clean the surface of the backlight panel and display glass to remove dust and oil, and ensure that there are no bubbles and impurities when laminating; Next, the backlight panel and display glass are bonded together: bonding equipment is used to precisely align and bond the backlight panel and display glass together to ensure no gaps or misalignment.

[0008] The technical effect of adopting the above technical solution is: ensuring that there are no impurities on the bonding surface of the backlight panel and the display glass, thereby enhancing the overall sealing and reliability of the product.

[0009] As a preferred implementation, in step S2, the magnetic material is selected: a suitable magnetic material is selected according to the size of the iron frame and the magnetic requirements; Then make the iron frame: Use stamping or cutting technology to make the iron frame, and make sure its shape and size match the position of the camera hole; Next, position the iron frame: place the iron frame at the camera hole position of the backlight module, and use the magnetism of the magnetic material to fix it on the backlight panel.

[0010] The technical effect of adopting the above technical solution is: achieving a firm combination of the iron frame and the backlight panel, and effectively preventing the light leakage problem caused by inaccurate position of the iron frame.

[0011] As a preferred implementation, in step S3, a plastic frame is selected: a suitable plastic frame is selected according to the size of the camera hole, and the inner diameter of the plastic frame should be slightly larger than the size of the camera hole; Then measure the camera hole size: Use a caliper or gauge to accurately measure the camera hole size to determine the appropriate thickness of the plastic frame; Then paste the glue frame: apply glue evenly on the edge of the iron frame, and then paste the glue frame on the iron frame, making sure that the glue frame and the iron frame are tightly combined.

[0012] The technical effect of adopting the above technical solution is: effectively filling the gap between the camera hole and the iron frame, thereby further preventing the occurrence of light leakage.

[0013] As a preferred implementation, in step S4, measuring the gap: using a feeler gauge or a gauge to measure the gap between the glue frame and the display glass to determine the amount of black glue that needs to be filled; Then prepare the black glue: prepare an appropriate amount of black glue according to the measurement results, and ensure that the viscosity and curing time of the black glue meet the process requirements; Then fill the black glue: use automated equipment to accurately fill the black glue to avoid bubbles.

[0014] The technical effect of adopting the above technical solution is: achieving a seamless connection between the rubber frame and the display glass, effectively improving the overall sealing performance of the screen, thereby ensuring the stability and reliability of the screen in various usage environments.

[0015] As a preferred embodiment, in the step S5, the filling condition is checked: before curing, the black glue is checked to see if it is evenly filled to ensure that there is no omission or excess; Then set the curing parameters: set the temperature and time parameters of the constant temperature box according to the technical specifications of the black glue to ensure that the black glue can be completely cured; Next is the curing process: put the backlight module into a constant temperature box and cure it according to the set parameters. During this period, the constant temperature box should not be opened to prevent temperature fluctuations. Finally, check the curing effect: After curing is completed, take out the backlight module to check whether the glue frame and the display glass are tightly combined to confirm that there is no light leakage.

[0016] The technical effect of adopting the above technical solution is: automated filling reduces the complexity and time consumption of manual operation, ensures the consistency and reliability of black glue filling, and because the black glue is fully cured, the product can maintain good sealing performance under different temperature and humidity conditions.

[0017] As a preferred implementation, the edge of the rubber frame is designed with a plurality of grooves to increase the friction between the rubber frame and the display glass.

[0018] The technical effect of adopting the above technical solution is that it can effectively prevent the relative sliding between the display glass and the plastic frame during the assembly process, thereby avoiding the light leakage problem caused by improper assembly.

[0019] As a preferred implementation, the iron frame and the plastic frame are connected via a snap-fit ​​structure to facilitate quick disassembly and replacement.

[0020] The technical effect of adopting the above technical solution is: improving the convenience of maintenance and replacement, reducing maintenance time, while ensuring the stability of the connection and avoiding structural damage caused by frequent disassembly.

[0021] As a preferred embodiment, the backlight module is provided with a light guide structure on the backlight plate at the camera hole position, and the light guide structure is designed as a plurality of light guide columns, and an LED lamp is added to the bottom of the light guide column to achieve a uniform light transmission effect.

[0022] The technical effect of adopting the above technical solution is: effectively improving the uniformity of light at the camera hole position, thereby avoiding the image distortion problem caused by uneven backlight, and the structural design of the light guide column can also reduce light scattering, further improving the clarity and contrast of the display effect.

[0023] As a preferred implementation, the glue frame material is a high temperature resistant material to adapt to the high temperature curing process of black glue.

[0024] The technical effect of adopting the above technical solution is: the high temperature resistance of the glue frame ensures that the material will not deform or degrade in performance during the high temperature curing of the black glue, thereby ensuring assembly accuracy and long-term reliability.

[0025] Compared with the prior art, the advantages and positive effects of the present invention are By selecting a backlight panel and display glass that meet the specifications, and cleaning the surface with a dust-free cloth and a special cleaner, using a bonding device to accurately align and bond the backlight panel and display glass, setting a magnetic iron frame at the camera hole position, using the magnetism of the magnetic material to fix it on the backlight panel, filling the gap between the glue frame and the display glass with black glue, using automated equipment for precise filling to avoid bubbles, placing the backlight module in a constant temperature box, controlling the temperature and time to ensure that the black glue is completely cured, thereby ensuring that the glue frame and the display glass are tightly combined; this design accurately fills the black glue with automated equipment, avoids additional dispensing processes, reduces the investment in materials and equipment, and thus reduces the overall cost, and by accurately controlling the manufacturing process of the backlight module, improves the durability of the product and reduces quality problems caused by light leakage; effectively avoids expensive dispensing equipment investment and the use of high-cost thermosetting glue, so that small-batch manufacturers can also adopt this technology, reducing costs, simplifying the production process, making the operation easier and easier to implement, and improving the adaptability of the production line.

[0026] By designing a rubber frame of corresponding thickness according to camera holes of different sizes, it is ensured that the rubber frame can accurately match the edge of the camera hole to form a good seal, and a groove is designed on the edge of the rubber frame to increase the friction between the rubber frame and the display glass to prevent the rubber frame from shifting under pressure or temperature changes. The iron frame and the rubber frame are connected by a snap-on structure; this design increases the friction between the rubber frame and the display glass through the edge groove design, improves the stability of the structure, makes the disassembly and replacement of the iron frame and the rubber frame quick and convenient, reduces the difficulty and cost of maintenance, avoids the use of expensive dispensing equipment and materials, reduces additional processes, and thus reduces manufacturing costs.

[0027] By setting up multiple light guides on the backlight plate at the camera hole position, these light guides can evenly disperse the light emitted by the bottom LED lamp. The angle and shape of the light guide are optimized through optical simulation and actual verification to ensure uniform distribution of light. The glue frame material selects modified epoxy resin and other high-temperature resistant materials to adapt to the high-temperature curing process of black glue, and remain stable at a curing temperature of 80°C without deformation or damage. This design makes the light evenly distributed, improves the display effect and the lighting and shooting effects of the camera, and reduces the dependence on specific curing conditions, making the curing process more flexible, avoiding expensive dispensing equipment investment and the use of high-cost materials, while ensuring that the high-temperature processing process is harmless to the human body and the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic flow chart of a design method for a blind hole screen to prevent light leakage at the camera hole position of the screen provided by the present invention; Figure 2 A schematic diagram of a screen camera hole for a design method of a blind hole screen to prevent light leakage at the screen camera hole position provided by the present invention; Figure 3 A schematic diagram of a light guide column for a design method of a blind hole screen to prevent light leakage at the camera hole position of the screen provided by the present invention.

[0029] 1. CG cover glass; 2. OCA optical glue; 3. Upper POL polarizer; 4. CF color filter; 5. TFT thin film transistor; 6. Lower POL polarizer; 7. BL backlight; 8. Iron frame; 9. Glue frame; 10. Light guide column; 11. Backlight; 12. LED light DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1 like Figure 1-Figure 3As shown, this embodiment provides a technical solution: a design method for preventing light leakage at the camera hole position of a blind hole screen, comprising the following steps: S1, preparing a backlight module, the module comprising a backlight panel 11 and a display glass bonded to the backlight panel 11, and then selecting the backlight panel 11 and the display glass: selecting a suitable backlight panel 11 and the display glass according to the product specifications, ensuring that their size and performance parameters meet the design requirements; then cleaning the surface: using a dust-free cloth and a special cleaning agent to clean the surface of the backlight panel 11 and the display glass to remove dust and oil, ensuring that there are no bubbles and impurities during bonding; then bonding the backlight panel 11 and the display glass: using bonding equipment to accurately align and bond the backlight panel 11 and the display glass together to ensure that there are no gaps and misalignments; First, according to the product design documents and technical specifications, determine the specific parameters of the required backlight panel 11 and display glass, including size, resolution, brightness, contrast, color range, etc., evaluate the compatibility of different backlight panel 11 and display glass materials, and ensure that they can provide the best visual experience after bonding. Before mass production, test the samples to verify whether their performance meets the design requirements. Clean the surface in a dust-free workshop to ensure that the cleanliness of the environment meets the requirements and avoid introducing new pollutants during the bonding process. Use a special surface pretreatment agent to pretreat the surface of the backlight panel 11 and the display glass to enhance the adhesion of subsequent bonding. Use a dust-free cloth to gently wipe the surface of the backlight panel 11 and the display glass to remove dust and impurities on the surface. Spray a special cleaning agent and use a dust-free cloth or special cleaning equipment to clean the surface. Clean thoroughly to remove oil and fingerprints, wipe the surface with a dry dust-free cloth or compressed air, and ensure that the surface is completely dry before bonding. Before bonding, calibrate the bonding equipment to ensure its accuracy and stability. Place the backlight panel 11 and the display glass on the working table of the bonding equipment, use a precise positioning system to ensure that the edges of the two are completely aligned, start the bonding equipment, and gradually bond the backlight panel 11 and the display glass together through precisely controlled pressure and temperature. During the bonding process, use a visual inspection system to monitor the bonding quality in real time to ensure that there are no gaps and misalignments. After bonding is completed, place the backlight module in the curing equipment and cure it according to the set temperature and time parameters to ensure the firmness of the bonding. After curing, perform quality inspection on the backlight module, including size measurement, appearance inspection and functional testing, to ensure that the bonding quality meets the standards; S2, setting an iron frame 8 at the position of the camera hole of the backlight module, the iron frame 8 is made of magnetic material, so as to facilitate positioning on the backlight module, and then selecting the magnetic material: selecting a suitable magnetic material according to the size and magnetic requirements of the iron frame 8; then making the iron frame 8: using stamping or cutting technology to make the iron frame 8, ensuring that its shape and size match the position of the camera hole; then positioning the iron frame 8: placing the iron frame 8 at the position of the camera hole of the backlight module, and fixing it on the backlight plate 11 by using the magnetism of the magnetic material; According to the usage scenario of the iron frame 8 in the backlight module, the required magnetic strength is analyzed to ensure that the iron frame 8 can be stably fixed on the backlight panel 11 without interfering with other electronic components in the module. The properties of different magnetic materials are evaluated, including magnetic performance, temperature resistance, corrosion resistance and cost-effectiveness, and the most suitable material is selected. According to the size and shape of the camera hole, detailed design drawings of the iron frame 8 are prepared, including size, tolerance and shape details. According to the design of the iron frame 8 and the characteristics of the magnetic material, the most suitable stamping or cutting technology is selected for production. Before mass production, samples of the iron frame 8 are produced to verify the size and shape to ensure accurate matching with the camera hole position, and the finished iron frame 8 is quality inspected. , including dimensional accuracy, surface finish and magnetic performance tests, to ensure that the iron frame 8 meets the design requirements. Before positioning the iron frame 8, ensure that the surface of the backlight module is clean and free of dust and oil to improve the adsorption force of the iron frame 8. Place the iron frame 8 accurately on the camera hole of the backlight module, ensure that the edge of the iron frame 8 is aligned with the edge of the camera hole, and use the magnetism of the iron frame 8 to firmly adsorb it on the backlight panel 11. Check whether the iron frame 8 is flat and has no warping. Test the fixing stability of the iron frame 8, including vibration test and long-term holding test, to ensure that the iron frame 8 can remain stable in various environments. If problems are found in the position or stability of the iron frame 8 during the test, make necessary adjustments and optimizations until the design requirements are met; S3, a circle of plastic frame 9 is attached to the edge of the iron frame 8, so that the iron frame 8 and the plastic frame 9 are fixedly connected to each other, and the plastic frame 9 has different thicknesses to adapt to camera holes of different sizes; The edge of the plastic frame 9 is designed with multiple grooves to increase the friction between the plastic frame 9 and the display glass. The iron frame 8 and the plastic frame 9 are connected by a snap-fit ​​structure to facilitate quick disassembly and replacement. According to the different sizes of camera holes, the rubber frame 9 is designed with different thicknesses to ensure accurate matching with the edge of the camera hole. Suitable plastic materials are selected, such as ABS plastic, because it has good impact resistance, heat resistance and low temperature resistance, and is easy to process and paint. The rubber frame 9 is manufactured by extrusion or injection molding process to ensure its dimensional accuracy and physical properties; A groove is designed on the edge of the rubber frame 9 to increase the friction between the rubber frame 9 and the display glass and improve the stability of the connection. The width and depth of the groove are adjusted to control the static friction coefficient to ensure the stability of the rubber frame 9 under different conditions. A friction test is performed to verify the effect of the groove design on the friction between the rubber frame 9 and the display glass to ensure the reliability of the design. The buckle structure between the iron frame 8 and the plastic frame 9 enables quick disassembly and replacement, improving maintenance efficiency. According to the geometric characteristics of the plastic frame 9 and the iron frame 8, select a suitable buckle type, such as a cantilever type, a ww ring type or a ball type buckle, to ensure that the buckle structure has sufficient connection strength to withstand various stresses in daily use. When designing the buckle, the operating force and the removal force are considered to ensure that the buckle connection is both firm and easy to operate. The buckle structure ensures its precise fit with the plastic frame 9 and the iron frame 8 to avoid loosening or over-tightening; The layer of CG cover glass 1 is located at the topmost layer, and serves as a protective layer for the screen to prevent scratches and impacts. The layer of OCA optical glue 2 is tightly attached to the layer below the CG cover glass 1, and is an optically transparent glue layer used to bond the upper CG cover glass 1 with the layer of the lower POL polarizer 6 to ensure the light transmittance and display effect. The layer of the upper POL polarizer 3 is located below the layer of OCA optical glue 2, and is a polarizer layer used to filter out reflected light, reduce screen reflections, and improve display contrast. The layer of CF color filter 4, i.e., the color filter layer, is located below the layer of the upper POL polarizer 3, and is responsible for decomposing white light into the three primary colors of red, green, and blue to display color images. The TFT film The layer of transistor 5, i.e., the thin film transistor layer, is located below the layer of CF color filter 4 and is composed of a thin film transistor array, which controls the switch of each pixel, thereby realizing the display of an image. The layer of lower POL 6, i.e., the thin film transistor layer, is located below the layer of TFT thin film transistor 5 and is another layer of polarizer, which cooperates with the layer of upper POL polarizer 3 to further improve the display effect. The layer of BL backlight plate 7, i.e., the backlight layer, is located below the layer of lower POL polarizer 6 and is composed of light guide column 10 and LED lamp 12, etc., which provide light source for the screen. The layer of rubber frame 9, i.e., the layer of BL backlight plate 7, is located below the layer of BL backlight plate 7 and is used to fix the backlight layer and play a certain sealing role. The layer of iron frame 8 is located at the bottom layer and provides support and protection for the entire screen structure. S4, fill the gap between the glue frame 9 and the display glass with black glue, measure the gap between the glue frame 9 and the display glass, adjust the amount of black glue according to the measurement result, fill the gap with black glue evenly, and then measure the gap: use a feeler gauge or a gauge to measure the gap between the glue frame 9 and the display glass to determine the amount of black glue that needs to be filled; then prepare black glue: prepare an appropriate amount of black glue according to the measurement result, and ensure that the viscosity and curing time of the black glue meet the process requirements; refill black glue: use automated equipment to accurately fill the black glue to avoid bubbles; Use professional feeler gauges or gauges. These tools can accurately measure the size of the gap between the glue frame 9 and the display glass. Measure at multiple locations of the glue frame 9 to ensure the accuracy and representativeness of the data to determine the amount of black glue that needs to be filled. Record the measurement results. These data will be used for subsequent adjustment and preparation of the amount of black glue. According to the measurement results and process requirements, select the appropriate black glue material, mainly considering its viscosity, fluidity and curing time. Adjust the viscosity of the black glue by heating or other means to ensure that it can be smoothly filled into the gap. Accurately measure the appropriate amount of black glue according to the measurement results to avoid too much or too little to affect the filling effect. In the process of preparing black glue, control the ambient temperature and humidity to prevent changes in the performance of the black glue. Use automated equipment to accurately fill the black glue, plan the best dispensing path, and ensure that the black glue can be evenly filled into all gaps between the glue frame 9 and the display glass. Start the automated equipment to fill the black glue. Closely monitor the process to ensure that no bubbles are generated. Check immediately after filling to ensure that the black glue is evenly filled without omissions or bubbles. S5, cure the black glue, ensure that the glue frame 9 is tightly combined with the display glass to prevent light leakage, place the backlight module in a constant temperature box, control the temperature and time in the constant temperature box to ensure that the black glue is completely cured, expand the specific steps of each step, and then check the filling situation: check whether the black glue is evenly filled before curing to ensure that there is no omission or excess; then set the curing parameters: set the temperature and time parameters of the constant temperature box according to the technical specifications of the black glue to ensure that the black glue can be completely cured; then the curing process: put the backlight module in the constant temperature box and cure it according to the set parameters. During this period, avoid opening the constant temperature box to prevent temperature fluctuations; finally check the curing effect: after the curing is completed, take out the backlight module to check whether the glue frame 9 is tightly combined with the display glass, and confirm that there is no light leakage; Before curing, use a light source and a magnifying glass to check whether the black glue is evenly filled in the gap between the glue frame 9 and the display glass to ensure that there is no omission or excess. Check by touch whether the distribution of the black glue is uniform and whether there are bumps or bubbles. Before actual curing, a small batch of samples can be selected for pre-curing test to verify the filling effect of the black glue and the suitability of the curing parameters; According to the technical specifications of the vinyl, analyze its curing temperature and time requirements, set the required temperature and time parameters on the control panel of the constant temperature box, ensure that the vinyl can be completely cured under appropriate conditions, ensure the stability of the internal environment of the constant temperature box, and avoid humidity and other environmental factors affecting the curing process; Carefully place the backlight module on the bracket or tray of the thermostat, making sure that the module is stable and not under pressure to avoid affecting the curing effect. Start the thermostat according to the set parameters, closely monitor the temperature and time to ensure that the black glue is cured at a constant temperature. Avoid opening the thermostat during the curing process to prevent temperature fluctuations from affecting the curing effect of the black glue. If observation is required, it can be done through the observation window of the thermostat; After curing, take out the backlight module, check whether the glue frame 9 is tightly combined with the display glass, and confirm that there is no light leakage. You can use ultraviolet lamp or ultraviolet visual light source to check whether the colloid is slightly whitish. If it is not completely cured, the color is a little dark. Perform an adhesive strength test to test whether the adhesive force after curing reaches the maximum to ensure the curing effect of the black glue. Let the product after curing for a few minutes. If it is completely cured, basically no odor can be smelled. If you smell the smell of UV glue, it means that there are incompletely cured components. For some coating UV glue, use acetone or ethanol to drop on the surface of the glue layer. If the UV glue layer dissolves quickly, it means that it is not completely cured by the UVLED curing lamp. If the opposite is true, it proves that the curing is complete. Embodiment 2 Reference Figure 2-Figure 3 The backlight module is provided with a light guide structure on the backlight plate 11 at the camera hole position. The light guide structure is designed as a plurality of light guide columns 10. The bottom of the light guide column 10 is formed by an LED lamp 12 to achieve a uniform light transmission effect. The material of the glue frame 9 is a modified epoxy resin material to adapt to the high temperature curing process of the black glue; The light guide structure is composed of a plurality of light guide columns 10, which are designed to evenly disperse the light emitted by the LED lamp 12. The light guide column 10 is designed to be cylindrical, and the size gradually increases from the entrance to the exit. For rectangular and special-shaped light guide columns 10, the corners must be rounded, and the radius is not less than 0.5 mm to ensure the lighting at the corners. The shape of the light guide column 10 should gradually change along its length. The LED lamp 12 at the bottom of the light guide column 10 is designed to be able to accurately match the light guide column 10. According to Snell's law, it is ensured that the light can effectively enter the light guide column 10 and be totally reflected inside, so as to achieve a uniform light transmission effect. The light guide column 10 is usually made of a material with high light transmittance, such as polymethyl methacrylate, whose refractive index is 1.49, to ensure the effective transmission and scattering of light. The material of the glue frame 9 is selected to be a high-temperature resistant material, such as modified epoxy resin, to adapt to the process of high-temperature curing of black glue. This material can remain stable at a curing temperature of 80°C and will not deform or be damaged. The high-temperature resistant glue frame 9 must also meet environmental protection and safety standards to ensure that the product is harmless to the human body and the environment during high-temperature processing. The high-temperature resistant glue frame 9 can adapt to the curing parameters of different black glues, such as KY3520 and KY3510 low-temperature curing black glue, which cures at 80°C for 5 to 20 minutes to ensure the stability of the glue frame 9 during the curing process.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A design method for a blind hole screen to prevent light leakage at the camera hole position of the screen, characterized in that: The following steps are involved: S1, preparing a backlight module, the module comprising a backlight plate (11) and a display glass bonded to the backlight plate (11); S2, setting an iron frame (8) at the position of the camera hole of the backlight module, wherein the iron frame (8) is made of magnetic material to facilitate positioning on the backlight module; S3, affixing a circle of plastic frame (9) to the edge of the iron frame (8), wherein the plastic frame (9) has different thicknesses to accommodate camera holes of different sizes; S4, filling the gap between the glue frame (9) and the display glass with black glue, measuring the gap between the glue frame (9) and the display glass, adjusting the amount of black glue according to the measurement result, and filling the gap with black glue evenly; S5, curing the black glue, ensuring that the glue frame (9) is tightly bonded to the display glass to prevent light leakage, placing the backlight module in a constant temperature box, and controlling the temperature and time in the constant temperature box to ensure that the black glue is completely cured.

2. According to claim 1, a design method for preventing light leakage at the camera hole position of a blind hole screen, characterized in that: In the step S1, a backlight panel (11) and a display glass are selected: a suitable backlight panel (11) and a display glass are selected according to product specifications, and their sizes and performance parameters are ensured to meet design requirements; Then clean the surface: Use a dust-free cloth and a cleaning agent to clean the surface of the backlight panel (11) and the display glass to remove dust and oil stains, and ensure that there are no bubbles and impurities when laminating; Then, the backlight panel (11) and the display glass are bonded together: a bonding device is used to accurately align and bond the backlight panel (11) and the display glass together to ensure that there is no gap or misalignment.

3. According to claim 1, a design method for preventing light leakage at the camera hole position of the blind hole screen, characterized in that: In the step S2, a magnetic material is selected: a suitable magnetic material is selected according to the size of the iron frame (8) and the magnetic requirements; Then, an iron frame (8) is made: the iron frame (8) is made by using a punching or cutting technique, and its shape and size are ensured to match the position of the camera hole; Next, the iron frame (8) is positioned: the iron frame (8) is placed at the position of the camera hole of the backlight module, and is fixed on the backlight plate (11) by using the magnetism of the magnetic material.

4. According to claim 1, a design method for preventing light leakage at the camera hole position of a blind hole screen, characterized in that: In the step S3, a plastic frame (9) is selected: a suitable plastic frame (9) is selected according to the size of the camera hole, and the inner diameter of the plastic frame (9) should be larger than the size of the camera hole; Then measure the size of the camera hole: Use a caliper or a gauge to accurately measure the size of the camera hole to determine the appropriate thickness of the plastic frame (9); Next, glue the glue frame (9): evenly apply glue on the edge of the iron frame (8), and then glue the glue frame (9) on the iron frame (8), ensuring that the glue frame (9) and the iron frame (8) are tightly combined.

5. According to claim 1, a design method for preventing light leakage at the camera hole position of a blind hole screen, characterized in that: In step S4, measuring the gap: using a feeler gauge or a gauge to measure the gap between the glue frame (9) and the display glass to determine the amount of black glue that needs to be filled; Then prepare the black glue: prepare an appropriate amount of black glue according to the measurement results, and ensure that the viscosity and curing time of the black glue meet the process requirements; Then fill the black glue: use automated equipment to accurately fill the black glue to avoid bubbles.

6. According to claim 1, a design method for preventing light leakage at the camera hole position of a blind hole screen, characterized in that: In the step S5, the filling condition is checked: before curing, check whether the black glue is evenly filled to ensure that there is no omission or excess; Then set the curing parameters: set the temperature and time parameters of the constant temperature box according to the technical specifications of the black glue to ensure that the black glue can be completely cured; Next is the curing process: put the backlight module into a constant temperature box and cure it according to the set parameters. During this period, the constant temperature box should not be opened to prevent temperature fluctuations. Finally, check the curing effect: After curing is completed, take out the backlight module to check whether the glue frame (9) and the display glass are tightly combined and confirm that there is no light leakage.

7. According to claim 1, a design method for preventing light leakage at the camera hole position of a blind hole screen, characterized in that: The edge of the rubber frame (9) is designed with a plurality of grooves to increase the friction between the rubber frame (9) and the display glass.

8. According to claim 1, a design method for preventing light leakage at the camera hole position of a blind hole screen, characterized in that: The iron frame (8) and the rubber frame (9) are connected via a snap-fit ​​structure to facilitate quick disassembly and replacement.

9. According to claim 1, a design method for preventing light leakage at the camera hole position of a blind hole screen, characterized in that: The backlight module is provided with a light guide structure on the backlight plate (11) at the position of the camera hole. The light guide structure is designed as a plurality of light guide columns (10). An LED lamp (12) is added to the bottom of the light guide column (10) to achieve a uniform light transmission effect.

10. According to claim 1, a design method for preventing light leakage at the camera hole position of a blind hole screen, characterized in that: The material of the glue frame (9) is a high temperature resistant material to adapt to the process of high temperature curing of black glue.

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