In fields such as liquid crystal displays, advertising light boxes and lighting fixtures, the Light Guide Plate (LGP) serves as a core optical component that determines backlight uniformity and luminous efficiency. Founded in 2015, Guangdong Jinmingwei Optoelectronics Technology Co., Ltd. specializes in the R&D, production and sales of light guide plates and supporting optical materials. It has grown into a high-tech enterprise integrating independent innovation and large-scale manufacturing. Located in Shunde, Foshan — a national high-tech zone with a complete industrial chain and abundant professional talent resources — the company supplies high-quality, high-stability LGP products to customers at home and abroad.
Optical Principle: Precision Optical Design for Uniform Luminous Performance
The core function of a light guide plate is to convert side incident light from light sources into evenly distributed front-emitting surface light. Jinmingwei adopts optical-grade PMMA (acrylic) or PC sheets as base materials, paired with high-refractive and non-light-absorbing optical materials. By applying professional processing technologies including laser engraving, V-shaped cross grid engraving and UV screen printing, precise light guide dots of variable density and size are formed on the substrate bottom.
When light from LED strips or lamps enters the acrylic sheet, it propagates internally through total internal reflection. Upon encountering micro-structured light guide dots, the total reflection condition is disrupted, enabling uniform light emission from the front surface of the light guide plate. Scientifically optimized dot density and size distribution compensate for light intensity attenuation from the incident side to the far side, achieving consistent full-panel brightness. Equipped with a reflector sheet to recycle leaked bottom light, the LGP system significantly improves light energy utilization. Under the same area and brightness requirements, Jinmingwei’s high-precision optical LGP system delivers lower power consumption and higher luminous efficiency.
Production Technology: Single-Sided Microstructure Array and Extrusion Molding
For single-sided microstructure array light guide plates, Jinmingwei adopts a continuous extrusion molding process. Optical-grade particles are melted at high temperature, shaped by professional molds, precisely calendered and online-cut to directly form finished semi-finished LGPs with complete microstructures. Compared with traditional screen printing and post-engraving processes, extrusion molding features higher production efficiency, excellent batch consistency and no secondary processing, making it ideal for large-volume, standardized LGP orders.
Meanwhile, the company retains complete UV screen printing and laser engraving production lines to meet customized demands for special-shaped plates, thick plates, small-batch orders and exclusive patterned light guide dots. The diversified process combination enables Jinmingwei to serve display module manufacturers, lighting enterprises, advertising and signage companies, and other industry clients with flexible and customized optical solutions.
Product Applications and Quality Assurance
Jinmingwei’s professional light guide plates are widely applied in the following scenarios:
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LCD backlight modules for monitors, TVs, laptops and industrial control displays
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LED panel lights, ultra-thin advertising light boxes and medical film viewing lamps
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Instrumentation backlighting and automotive display backlight systems
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Uniform luminous panels for general indoor and commercial lighting
The company has established a full-process quality management system covering raw material inspection, in-process monitoring and finished product testing. Every batch of light guide plates undergoes strict optical brightness testing, chromatic coordinate consistency verification and aging reliability validation. With stable optical performance and high dimensional accuracy, Jinmingwei’s products have gained wide recognition across South China, East China and global overseas markets.
Independent Innovation and Sustainable Development
As an officially settled enterprise in the national high-tech zone, Jinmingwei Optoelectronics attaches great importance to technical R&D investment and owns multiple utility model patents and software copyrights related to light guide plate technology. Keeping pace with cutting-edge backlight technology trends, the company has accumulated forward-looking technical reserves in ultra-thin LGPs for Mini-LED backlights and high-haze integrated diffusion light guide plates.
In the future, adhering to customer-oriented service and precision optical design as the core competitiveness, Jinmingwei will continuously drive LGP technological upgrading toward higher brightness, lower power consumption and ultra-thin lightweight design, striving to become a reliable professional manufacturer and service provider in the global light guide plate industry.
