The characteristics and innovative application of injection molding light guide plate
With the continuous progress of science and technology, injection molded light guide plate has been widely used in many fields by virtue of its unique advantages. This article will deeply discuss the characteristics and innovative application of injection molding light guide plate, and reveal its important position and development trend in modern science and technology.
Characteristics of injection molding light guide plate
1. High production efficiency: the injection molding process uses high pressure to inject molten plastic material into the mold, and then cool and solidify to form products, which has the characteristics of short molding cycle and high production efficiency, and can realize batch production.
2. Flexible design of light guide point: light guide point can be designed according to the light source of different manufacturers or different light emitting conditions, and can also be designed according to the different use requirements of customers to achieve different use effects.
3. Excellent optical performance: it can convert the line light source into a uniform surface light source, the light distribution is uniform, the light conversion efficiency is high, compared with the traditional board, can increase by more than 30%. For example, the liquid crystal backlight of Nalux is produced by injection molding with light guide plate, which precisely transfers the fine prism pattern made on the mold by mechanical processing, and can effectively control the emission area and intensity.
4. A variety of material selection: common light guide plate materials are plexigold (PMMA), polycarbonate (PC), etc. Different materials have different physical and optical properties, can be selected according to the specific application needs of the appropriate material. For example, plexiglass has good transparency, chemical stability and weather resistance; Polycarbonate has good light transmission performance, good dimensional stability, and can withstand a wide range of temperatures.
5. Thinness can be realized: With the development of technology, the thickness of injection molding light guide plate has been gradually thinness, which can meet the market demand for light and thin products.
6. Low cost: the injection molding process is mature, high production efficiency, and no additional processes such as engraving or printing, the production cost is relatively low, with high cost performance.
Innovative application of injection molded light guide plate
1. Transparent PC injection cover plate:
Technical innovation: drawing on the injection molding compression process of the light guide plate industry, the stress pattern (rainbow pattern) in the injection molding of transparent PC is significantly eliminated, and the color matching and texture effect of the mobile phone shell are improved.
Application prospects: This process is not only suitable for mobile phone cases, but can also be extended to other products that require transparent, high-texture appearance, such as smart watches and smart glasses.
2. Vehicle light guide plate:
Technical innovation: The LM807 polycarbonate light guide plate for vehicle use launched by Covetron and Changtin Technology, combined with UV micro-dot printing process, achieves high brightness, low color offset and high reliability.
Application prospects: Based on ensuring the stability of product quality, this light guide plate provides a solution of high performance, high design freedom and high production efficiency, which is suitable for the development needs of automotive integration, intelligence, electrification and information.
3. Automatic cutting technology:
Technical innovation: Dongguan Hengsheng Optoelectronics Technology Co., Ltd. has successfully obtained the patent of "an automatic cutting mechanism for injection water outlet of light guide plate". The mechanism includes linear transmission components, guiding components, pressure components and cutting components, which can realize the transmission and cutting of light guide plate without manual intervention.
Application prospects: This technology significantly enhances the automation level of light guide plate production, improves production efficiency, reduces human errors, and is suitable for large-scale production.
4. New composite light guide plate material:
Technical innovation: The new composite light guide plate material will separate the phosphor in the LED lamp in the diffusion plate, and the light guide plate, diffusion plate and reflective layer are layered into one, which has the advantages of uniform light, good light effect, and reduce the overall thickness of the material.
Application prospects: This material is suitable for a variety of lighting equipment that requires high light efficiency and low thickness, such as ultra-thin LED panel lights and backlight sources.
Market Trends
1. Global Market Growth:
According to QYR's statistics and forecasts, the global market for injection molding machines for light guide plates reached $216 million in 2023 and is expected to reach $304 million in 2030, with a compound annual growth rate (CAGR) of 4.7% (2024-2030).
2. Market development in China:
The injection molding machine market for light guide plate in China has shown a steady growth trend during 2019-2024 and is expected to continue to grow during 2025-2030.
3. Application field expansion:
The application field of light guide plate continues to expand, from the traditional liquid crystal display backlight, automotive interior lighting, household appliances indicator lights, etc., gradually expanded to the emerging fields of medical equipment, industrial endoscopes, smart wearable devices and so on.
Injection molded light guide plate not only performs well in traditional application fields, but also shows great potential in technological innovation and market expansion, and is expected to be widely used in more fields in the future.
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