Nanocomp Front Lighting at Display Week 2024, Lower power Displays, Flexible light guide

Marko Parikka from Nanocomp discusses their role as a supplier of light guides and microstructure films for display illumination, particularly focusing on reflective LCD front lighting. He emphasizes the rarity of achieving full lamination without air gaps in front lighting, highlighting its brightness due to both internal and front lighting sources. Nanocomp's technology involves a thin layer of white LED-laminated film atop displays, with side-lit LEDs coupling light into a waveguide. Microstructures then disperse light evenly throughout the display.

Parikka explains the modulation of microstructure density and orientation to ensure uniform light distribution, showcasing the transparency of the film when not illuminated and its transformation when coupled with LEDs. Their aim is not just brightness but also ensuring good contrast and color reproduction. Nanocomp claims to be a technology leader in front light systems, having supplied millions of units to various devices, particularly display-based ones.

The conversation touches on diverse applications, including smartphones and e-readers, with automatic brightness control via light sensors. Comparisons with backlight systems highlight the front light's superior power efficiency, particularly in outdoor settings where natural light complements it. Nanocomp has also designed for emerging technologies like cholesteric LCDs, though they remain cautious about the commercial viability of certain reflective display technologies.

Directional light emission is discussed, showcasing Nanocomp's ability to create narrow-angle illumination, suitable for specific applications like automotive human-machine interfaces. Their expertise extends to customizable logo illuminations through stacked light guide layers, offering potential applications beyond traditional displays. The company's manufacturing process is noted for its scalability and efficiency, utilizing roll-to-roll UV printing for mass production.

Despite its advanced capabilities, Nanocomp emphasizes affordability, attributing it to their scalable production methods. While based in Finland, they conduct some post-processing in Asia but assert that the core manufacturing remains in Finland. The conversation concludes with remarks on the technology's contribution to sustainability, power savings, and eye comfort, underlining its broad potential applications across various industries.

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