Custom Ultra-Thin BEF

Extreme Brightness Enhancement
The precision prismatic microstructure on the surface of the Custom Ultra-Thin BEF efficiently refracts and recycles scattered light, redirecting ineffective light from lateral and oblique angles into the frontal viewing zone. A single sheet can achieve a brightness increase of 40%–60%, while a stack of two orthogonally aligned sheets can boost brightness by up to 100%. This enhances display brightness without increasing LED power consumption, thereby reducing overall device energy usage.

Ultra-Thin and Lightweight Adaptability
Unlike standard BEFs, the Custom Ultra-Thin BEF utilizes an ultra-thin substrate and an optimized prism structure design to reduce its overall thickness to just one-half to two-thirds that of conventional products. This makes it perfectly compatible with ultra-thin backlight modules measuring less than 1 mm, meeting the stringent thickness requirements of devices such as foldable screens, ultra-thin laptops, and smart wearables, all while maintaining stable optical performance.

Customized Optical Integration
RINA TECH offers customized solutions for the Custom Ultra-Thin BEF based on specific client device parameters-including prism angles (e.g., 90°, 50°, 70°), pitch, height, as well as sheet dimensions and shapes. By precisely matching various light guide plates and light source types, the film resolves issues such as brightness non-uniformity, interference patterns, and Newton's rings, thereby ensuring precise optical system integration.

Light Management and Energy Efficiency
The Custom Ultra-Thin BEF narrows the light emission angle to within a 70° range, minimizing light loss and preventing the waste of light outside the intended viewing angle. When combined with high-transmittance materials, this allows devices to achieve equivalent brightness levels with lower power consumption-thereby extending battery life-while simultaneously enhancing display contrast and visual clarity.