Pressure-resistant light guide plate lattice point structure
By setting a pressure-resistant platform on the main body of the light guide plate dots, the stress-bearing area is increased, which solves the problem of white spots caused by the deformation of the light guide plate dots, improves the display effect and product quality, and enhances the product's stability and market competitiveness.
Patent Information
- Application Number
- CN202423215036.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The light guide plate dots have a small stress area at the top, making them prone to deformation when subjected to external forces. This can lead to white spots in the display area, affecting the product's display effect and aesthetics.
A pressure-resistant platform is set on the main body of the light guide plate dot matrix to increase the stress-bearing area of the dot matrix, thereby reducing pressure, improving pressure resistance, suppressing dot deformation, and ensuring uniform light propagation.
It improves the product's display effect and overall quality, reduces white spots, enhances the product's stability and reliability, extends its service life, and reduces after-sales maintenance costs.
Smart Images

Figure CN223842182U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of light guide plate dot technology, and more specifically, to a pressure-resistant light guide plate dot structure. Background Technology
[0002] In the current field of mobile phone module product design and manufacturing, drop testing and tumbling tests are two crucial quality assessment steps. These tests are designed to simulate various accidental drops and rolling situations that mobile phones may encounter in daily use, thereby ensuring that the products can maintain sufficient durability and reliability when facing these challenges.
[0003] However, in actual testing, the backlight module often becomes a problematic area. When the mobile phone module is subjected to drop or tumbling impacts, the light guide plate in the backlight module often deforms due to external pressure. This is especially true for the dot structure on the light guide plate. Traditional dot designs typically use an elliptical shape with a small top stress area, making them prone to deformation under external force. This deformation leads to a serious problem: localized white spots on the display area. This is because the deformed dot areas differ from normal dot areas in their light refraction, causing light to fail to propagate properly in the deformed areas, resulting in noticeable white spots on the screen. These white spots not only affect the display effect but also significantly reduce the product's aesthetics and user experience. Therefore, we have proposed an improved, pressure-resistant light guide plate dot structure. Utility Model Content
[0004] The technical problem to be solved by this utility model embodiment is that the light guide plate dots have a small top force-bearing area, are easily deformed when affected by external forces, and the ability of the light guide plate dots in the deformed area under pressure to refract light is different from that in the normal dot area.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A pressure-resistant light guide plate dot structure includes: a light guide plate body, on which a plurality of dot bodies are disposed, and a pressure-resistant platform is disposed on the side of each dot body away from the light guide plate body. This application increases the force-bearing area of the dot bodies by providing a platform on them, thus reducing the pressure on the dot bodies under the same external force, thereby improving their pressure resistance. By suppressing the deformation of the dot bodies, the product can maintain uniform light propagation during display, reducing local light anomalies caused by white spots, thereby significantly improving the display effect of the product, making the image display clearer, more natural, and flawless. Simultaneously, it reduces the chain reaction of other structures that may be caused by the deformation of the dot bodies, ensuring the stability of the overall structure of the light guide plate, thereby improving the overall quality of the product, enhancing its competitiveness and reliability in the market, extending its service life, and reducing after-sales maintenance costs and resource waste caused by quality problems.
[0007] As an improvement of this utility model, the pressure-resistant platform is used to increase the force-bearing area of the main body of the network point, so as to realize the pressure resistance of the main body of the network point.
[0008] As an improvement of this utility model, the main body of the network dots is elliptical.
[0009] As an improvement of this utility model, the height of the main body of the dot matrix is micrometers.
[0010] As an improvement of this utility model, the diameter of the pressure-resistant platform is micrometers.
[0011] As an improvement of this utility model, the diameter of the main body of the network point away from the pressure-resistant platform is larger than the diameter of the pressure-resistant platform.
[0012] As an improvement of this utility model, the diameter of the main body of the network on the side away from the pressure-resistant platform is micrometers.
[0013] As an improvement of this utility model, the distribution of several of the dot matrix bodies on the light guide plate body is a uniform array.
[0014] As an improvement of this utility model, it also includes a transparent protective film, which covers the main body of the light guide plate and the pressure-resistant platform to protect the dot structure from scratches and contamination, while maintaining the light guiding performance.
[0015] As an improvement of this utility model, the transparent protective film is made of optical-grade silicone and has a thickness of up to micrometers.
[0016] Compared with the prior art, the embodiments of this utility model have the following main advantages:
[0017] To address the problem in existing technologies where the light guide plate dots have a small top stress-bearing area, making them prone to deformation under external force, and causing a difference in the light refraction ability of the deformed area compared to the normal dot area, this application proposes a platform on the dot body. This platform increases the stress-bearing area of the dot body, reducing the pressure on the dot body under the same external force, thus improving its compressive strength. This improvement effectively solves the white spot problem caused by dot body deformation in drop and roller tests, improving the product's display effect and overall quality. Attached Figure Description
[0018] Figure 1 A schematic diagram of the pressure-resistant light guide plate dot structure provided in this application;
[0019] Figure 2 A partial structural schematic diagram of the pressure-resistant light guide plate dot structure provided in this application;
[0020] Figure 3 A side view schematic diagram of the pressure-resistant light guide plate dot structure provided in this application;
[0021] Figure 4 This is a dimensional diagram of the pressure-resistant light guide plate dot structure provided in this application.
[0022] The image shows:
[0023] 1. Light guide plate main body; 2. Network outlet main body; 3. Platform. Detailed Implementation
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The reference herein to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0025] As described in the background section, when a mobile phone module is subjected to the impact of a drop or tumbling test, the light guide plate in the backlight module often deforms due to the external pressure. In particular, the dot structure on the light guide plate is prone to deformation when subjected to external forces because traditional dot designs are usually elliptical and have a small top force-bearing area. This deformation of the light guide plate dots leads to a serious problem: localized white spots appearing on the display area. This is because the deformed dot area differs from the normal dot area in terms of light refraction, causing light to be unable to propagate normally in the deformed area, thus forming obvious white spots on the display screen. These white spots not only affect the display effect of the product but also greatly reduce the product's aesthetics and user experience.
[0026] To solve this technical problem, this utility model provides a pressure-resistant light guide plate dot structure.
[0027] For details, please refer to Figures 1-4 The pressure-resistant light guide plate dot structure specifically includes:
[0028] The light guide plate body 1 has several dot bodies 2 on it, and a pressure-resistant platform 3 is provided on the side of the dot bodies 2 away from the light guide plate body 1.
[0029] The pressure-resistant light guide plate dot structure provided by this utility model improves the pressure resistance by setting a platform 3 on the dot body 2. The platform 3 increases the force-bearing area of the dot body 2, thereby reducing the pressure on the dot body 2 when subjected to the same external force. Through this improvement, this application effectively solves the problem of white spots caused by the deformation of the dot body 2 in drop and roller tests, and improves the display effect and overall quality of the product.
[0030] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0033] Example 1 of the pressure-resistant light guide plate dot structure of this utility model
[0034] Please refer to Figures 1-4The pressure-resistant light guide plate dot structure of this utility model includes: a light guide plate body 1, a plurality of dot bodies 2 disposed on the light guide plate body 1, and a pressure-resistant platform 3 disposed on the side of the dot body 2 away from the light guide plate body 1. The introduction of the pressure-resistant platform 3 into the light guide plate dot structure is a key innovation. When the dot body 2 is subjected to external impact, such as during product drop or roller testing, the external force is dispersed on the pressure-resistant platform 3. Compared to traditional dot structures without the pressure-resistant platform 3, the force-bearing area of the dot body 2 in this application is significantly increased. According to the pressure formula P=F / S, where P is pressure, F is external force, and S is the force-bearing area, under the same external force F, as the force-bearing area S increases, the pressure P borne by the dot body 2 decreases accordingly. The smaller size effectively reduces the possibility of deformation of the dot matrix 2 due to excessive pressure. Since deformation of the dot matrix 2 is a major cause of white spot problems, suppressing deformation allows the product to maintain uniform light propagation during display, reducing local light anomalies caused by white spots. This significantly improves the product's display effect, making the image clearer, more natural, and flawless. At the same time, it reduces other structural chain reactions that may be caused by the deformation of the dot matrix 2, ensuring the stability of the overall structure of the light guide plate. This, in turn, improves the overall quality of the product, enhances its competitiveness and reliability in the market, extends its service life, and reduces after-sales maintenance costs and resource waste caused by quality problems.
[0035] Furthermore, the pressure-resistant platform 3 increases the stress-bearing area of the dot matrix 2 to enhance its compressive strength. As a structural component specifically designed to improve the compressive strength of the dot matrix 2, the core value of the pressure-resistant platform 3 lies in accurately bearing the responsibility of dispersing external forces. In complex and ever-changing usage environments, whether it is slight squeezing during product assembly or external forces such as collisions and vibrations encountered during transportation and daily use, the pressure-resistant platform 3 can evenly disperse these external forces over a larger area. This not only allows the dot matrix 2 to maintain a stable physical form and its original optical performance within the rated external force range, but also enhances the durability of the light guide plate from the overall structure. In this way, the risk of structural damage to the dot matrix 2 caused by pressure is effectively reduced, ensuring that the light guide plate can still stably provide high-quality light guiding services to the product under long-term, high-intensity use conditions. This lays a solid foundation for the continuous normal operation of the product, improves the stability and reliability of the product, reduces the frequency of production stoppages or product failure repairs due to component damage, and indirectly improves production efficiency and user satisfaction.
[0036] Furthermore, such as Figure 3As shown, the main body 2 of the network outlet is elliptical. The elliptical design of the main body 2 of the network outlet is retained. From the perspective of production process, the elliptical shape is a relatively common and easy-to-process shape. Using the familiar elliptical design can make the production process smoother and more efficient, reduce the production delays and scrap rates that may be caused by process adjustments, further reduce production costs, and launch the product to the market at a more affordable price, attracting more consumers to buy it, thereby increasing the market share of the product and bringing greater economic benefits and business success opportunities to the enterprise.
[0037] Example 2 of the pressure-resistant light guide plate dot structure of this utility model
[0038] The pressure-resistant light guide plate dot structure of this utility model is further improved, such as... Figure 4 As shown, the height of the main body 2 of the dot matrix is 36 micrometers.
[0039] Furthermore, such as Figure 4 As shown, the diameter of the compression platform 3 is 15 micrometers.
[0040] Furthermore, such as Figure 4 As shown, the diameter of the side of the dot matrix 2 away from the pressure-resistant platform 3 is larger than the diameter of the pressure-resistant platform 3. This unique diameter difference design is based on in-depth research on the characteristics of light propagation. When light enters from one side of the light guide plate body 1 and propagates towards the dot matrix 2, the larger diameter of the side of the dot matrix 2 away from the pressure-resistant platform 3 can effectively collect and initially scatter the light. Due to its larger surface area, the light can be more widely diffused in this area, reducing the excessive concentration of light and laying a good foundation for the uniform distribution of light throughout the entire light guide plate body 1. Subsequently, when the light passes through the pressure-resistant platform 3, the smaller diameter of the pressure-resistant platform 3 can further fine-tune and guide the light, enabling the light to be reflected and refracted more accurately inside the light guide plate according to the design requirements.
[0041] Furthermore, such as Figure 4 As shown, the diameter of the side of the dot body 2 away from the pressure-resistant platform 3 is 50 micrometers. The specific dimensions further confirm that the diameter of the side of the dot body 2 away from the pressure-resistant platform 3 is larger than the diameter of the pressure-resistant platform 3.
[0042] Furthermore, such as Figure 1As shown, the distribution of several dot matrix bodies 2 on the light guide plate body 1 is a uniform array. The uniform array distribution of dot matrix bodies 2 is one of the key factors to achieve the excellent light propagation uniformity of the light guide plate body 1. During the operation of the light guide plate, after the light enters from one edge, it needs to undergo multiple reflections and refractions inside the light guide plate body 1 before it can be evenly distributed to the entire display area. The uniform array of dot matrix bodies 2 can ensure that the light receives similar scattering and refraction processing at each propagation node. Each dot matrix body 2 is like a tiny light control center. They are evenly distributed on the light guide plate body 1 according to a fixed spacing and arrangement, so that the light will not be concentrated or missing in a local area during propagation, which greatly improves the quality and reliability of the product in terms of display effect.
[0043] Embodiment 3 of the pressure-resistant light guide plate dot structure of this utility model
[0044] Furthermore, the pressure-resistant light guide plate dot structure of this utility model also includes a transparent protective film. The transparent protective film covers the light guide plate body 1, the dot body 2, and the pressure-resistant platform 3. The transparent protective film can effectively reduce the direct scratches or contamination caused by external factors to the dot body 2 and the pressure-resistant platform 3 due to its good physical barrier properties. Once scratched, light will scatter and refract abnormally during propagation, resulting in defects in the display effect, such as bright lines and dark patterns. Contamination may change the optical characteristics of the dot structure, reduce the light transmittance and scattering effect, and affect the overall light guiding efficiency and display quality of the light guide plate. The presence of the transparent protective film ensures that the dot structure is always in a clean and smooth state, maintaining its original optical performance.
[0045] Furthermore, the transparent protective film is made of optical-grade silicone, with a thickness of 5 to 20 micrometers. The selection of optical-grade silicone as the material for the transparent protective film is based on a comprehensive consideration of multiple factors. Optical-grade silicone has extremely high optical transparency, and its molecular structure can minimize the scattering and absorption of light during transmission, ensuring that light can pass through the protective film with extremely high efficiency and reach the dot structure. It will hardly have any negative impact on the original light guiding performance of the light guide plate. In terms of flexibility, silicone material has excellent elasticity and deformability. When the light guide plate is subjected to slight external force compression or collision, the protective film can effectively buffer the external force and reduce the direct transmission of external force to the dot structure, playing a secondary protection role and further reducing the risk of damage to the dot structure.
[0046] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. A pressure-resistant light guide plate dot structure, characterized in that, include: The light guide plate body (1) is provided with a plurality of dot bodies (2), and a pressure-resistant platform (3) is provided on the side of the dot bodies (2) away from the light guide plate body (1). The compression-resistant platform (3) is used to increase the stress-bearing area of the main body (2) of the network point, so as to achieve the compression resistance of the main body (2); The height of the main body (2) of the network is 36 micrometers; The diameter of the pressure-resistant platform (3) is 15 micrometers; The diameter of the main body (2) of the network point away from the pressure-resistant platform (3) is larger than the diameter of the pressure-resistant platform (3); The diameter of the main body (2) of the network point away from the pressure-resistant platform (3) is 50 micrometers; It also includes a transparent protective film, which covers the light guide plate body (1), the dot matrix body (2) and the pressure-resistant platform (3); The transparent protective film is made of optical-grade silicone and has a thickness of 5 to 20 micrometers.
2. The pressure-resistant light guide plate dot structure according to claim 1, characterized in that, The main body (2) of the network point is elliptical.
3. The pressure-resistant light guide plate dot structure according to claim 1, characterized in that, The distribution of several of the dot matrix bodies (2) on the light guide plate body (1) is a uniform array.