High-Uniformity Diffusion Film
Product Name:High-Uniformity Diffusion Film
Material Composition: PET + Diffusion Coating
Dimensions: Customizable
Shape: Customizable
Advantages:
Customized Light Pattern Control
Expanded Viewing Angle & Compatibility
Exceptional Light Uniformity
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
Rina Technology Co., Ltd. is one of the leading manufacturers and suppliers of high-uniformity diffusion film in China. Welcome to wholesale durable products in stock here and get quotation from our factory. All customized products are with high quality and low price.
Products Description
Introduction to High-Uniformity Diffusion Film
High-Uniformity Diffusion Film is a precision optical functional film based on a substrate of highly transmissive polymer materials.it transforms point or line light sources into area light sources characterized by exceptional uniformity in both brightness and chromaticity.
Its core function is to resolve critical issues associated with traditional diffusion films-specifically, insufficient light uniformity, the presence of visible hotspots, and low light transmittance.
Compared to standard diffusion films, this product achieves brightness uniformity exceeding 92% and offers a superior balance between haze and light transmittance, establishing itself as a pivotal optical component in high-end display and lighting systems.
Leveraging proprietary optical formulations and precision coating processes, the company has launched a comprehensive series of high-uniformity diffusion film products designed to meet the high-precision light-uniformity requirements of a wide range of application scenarios.
Functions of High-Uniformity Diffusion Film
Ultimate Light Uniformity:
Through the dual action of internal micron-scale diffusion particles and surface microstructures, High-Uniformity Diffusion Film causes light to undergo multiple refractions, reflections, and scattering events, thereby thoroughly randomizing its propagation paths. This completely eliminates LED bead ghosting, localized bright spots, and dark zones, achieving a perfectly uniform and seamless light output across the entire surface-a level of uniformity that far exceeds conventional industry standards.
Anti-Glare and Visual Optimization:
By precisely controlling haze levels within the 75%–90% range, the film transforms harsh direct light into soft, diffused light. This reduces glare from the light source and minimizes visual fatigue, while simultaneously concealing internal structures-such as light guide plate dots and LED beads-to enhance the visual purity of both display and lighting applications.
High Transmittance and Luminous Efficiency Preservation:
Unlike ordinary diffusion films-which suffer from the inherent drawback that "uniformity inevitably compromises transmittance"-High-Uniformity Diffusion Film utilizes a proprietary formula featuring high-refractive-index matching particles. This ensures a light transmittance rate of over 85%, allowing the film to maximize the preservation of luminous flux while simultaneously achieving light uniformity, thereby reducing energy consumption at the light source.
Expanded Viewing Angles and Compatibility:
The film optimizes light diffusion angles to provide horizontal and vertical viewing angles exceeding 160°, making it ideally suited for large-format displays and wide-angle lighting environments. Furthermore, it exhibits excellent resistance to heat, static electricity, and scratches, ensuring stable compatibility when integrated with other optical films, such as prism sheets and brightness enhancement films.
Structural Composition of High-Uniformity Diffusion Film
Transparent Base Layer: Utilizes optical-grade PET (Polyethylene Terephthalate) or PC (Polycarbonate) as the substrate material, with selectable thicknesses ranging from 0.05 to 0.76 mm. It features high light transmittance, superior mechanical strength, and excellent resistance to extreme temperatures, providing structural support for the entire film assembly.
Internal Diffusion Layer: The core functional layer, in which acrylic, silicone, or silica nanobeads (with particle sizes of 1–10 μm) are uniformly dispersed within a resin matrix. By precisely controlling the refractive index difference between the particles and the substrate, this layer facilitates multiple internal light scattering events, thereby establishing the foundation for uniform light diffusion.
Surface Microstructure Layer:The light-emitting surface undergoes a precision embossing process to form a pattern of random or periodic microlenses/micro-dimples. This structure further disperses any residual concentrated light, enhancing the uniformity effect while simultaneously optimizing the light emission angle to expand the viewing range.
Back-Side Anti-Blocking Layer: The reverse side of the base layer is coated with a low-density micro-bead layer. This coating reduces the risk of adhesion between the film sheet and the light guide plate or other optical films, preventing the formation of Newton's rings and pressure marks, thereby ensuring stability during installation and operation.
RINA TECHNOLOGY
is a high-tech enterprise specializing in research, development, production ,sales of Optical LED products and provide the one step optical lighting solution for customers.Established in 2011, Hong Kong, after years of rapid development, Rina Tech has settled office and factory in Shenzhen,and has professional senior technicians and qualified managers,has a talented team for product research and designing.
Nowadays, we have laser cutting machines, printers, film cutting machines, injection molding equipments,high-standard assembly workshops, BM-7 clean machines and other advanced equipments.
Our factory daily output is more than 80000pcs. to cater for the market at home and abroad.With years of unremitting effort,RINA TECH has passed get the Registration Certificate ofCustoms Declaration Unit of the People's Republic of China , National Credit Cultivation Certificate and Get our own Brand already.
We has made many breakthroughs in researching and manufacturing and has
obtained lots of good reputation from oversea customers.
Now we has cooperated with and become strategic partner of some famous enterprises such as LG, Samsung, Lenovo etc."Living on Sincerity, following with Market, Advancing by Specialty" is our eternal philosophy,and the company motto is "Good at Production, Good for Society".
We look forward to cooperating with you to make the world better and future brighter!
FAQ
Q1: What is the core difference between High-Uniformity Diffusion Film and standard diffusion film?
A: The core differences lie in uniformity, light transmittance, and stability. Standard diffusion films typically have a uniformity level below 85%, are prone to developing "hot spots" (bright patches), and exhibit relatively low light transmittance. In contrast, High-Uniformity Diffusion Film boasts a uniformity level exceeding 92% and a light transmittance of ≥85%. It features more uniform particle dispersion and a more precise microstructure; consequently, it is less prone to yellowing over long-term use, and its performance degrades more slowly. RINA TECH's products have undergone third-party testing, and their uniformity and durability metrics consistently surpass industry standards.
Q2: What thickness options are available for High-Uniformity Diffusion Film?
A: Standard thicknesses include 0.05mm, 0.1mm, 0.125mm, 0.188mm, 0.25mm, 0.35mm, 0.5mm, and 0.76mm. Specifically, the 0.05mm–0.188mm range is suitable for display backlighting applications, while the 0.25mm–0.76mm range is suitable for lighting panels. RINA TECH can also customize special thicknesses to accommodate the specific structural requirements of a client's equipment.
Q3: What is the operating temperature range for High-Uniformity Diffusion Film?
A: PET-based substrates can withstand temperatures ranging from -30°C to 85°C, while PC-based substrates can withstand temperatures from -40°C to 120°C. For high-temperature environments-such as those found in automotive or industrial applications-we recommend the PC-based substrate version. RINA TECH can also incorporate anti-yellowing additives to further extend the product's service life in high-temperature settings.
Q4: Can High-Uniformity Diffusion Film be used on a single side or on both sides?
A: We recommend orienting the light-emitting side (the side featuring the microstructure) toward the observer or the intended viewing area, and the light-receiving side toward the light source; this configuration maximizes the light-uniformity effect. While both sides possess basic light-diffusing capabilities, single-sided usage aligns more closely with standard optical design principles. RINA TECH offers customized versions featuring either single-sided or double-sided microstructures.
Q5: How do I select the appropriate model of High-Uniformity Diffusion Film for my application?
A: There are three key reference points: ① Application scenarios (display/lighting); ② Required uniformity, haze, and light transmittance; and ③ Film thickness and temperature resistance requirements. RINA TECH offers sample testing and technical support to help you identify the optimal model based on your specific parameters.
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