Keypad & Keyboard Backlights

New Generation Of Production Ready Keyboard-Keypad Illumination Systems

Razor-Thin Power Efficient HOW® Backlights for Keypads and Keyboards
X10 Higher Luminance than that one of the second best light guide film (LGF) in The Market.  

Visus Photonics REVOLUTIONIZES keyboard and keypad illumination giving better, more uniform lighting with almost no energy consumption. Visus light guiding films (LGF) have slashed power consumption by 15 - 50 times and reduced the number of LEDs tenfold just to one LED for most MPs.
Visus delivers light satisfying the most stringent demands of cellular phone, NB and keyboard designers to bedazzle the consumers, while dramatically slashing costs and allowing a far simpler keyboard assembly. Many years of optical, material and manufacturing research have culminated into this patented breakthrough.
In recent years, development efforts for cellular phone lighting were focused on the LCD backlighting. Keyboard illumination technique has been totally neglected and remained unchanged since its inception. As a result, the keyboard illumination consumes more power and uses more LEDs than the LCD backlight and is the primary source of power waste in today's mobile devices.

The Visus Advantage

Visus Photonics has introduced new HOW™ LED-based high-brightness LCD and keypad & keyboard backlights that offer an exceptional thinness of 0.2 mm or less – much thinner than the slimmest  0.4 mm molded light guide -  for a wide array of LCD as well as general lighting applications. Time is ripe to change an ubiquitous so familiar term LGP for LGF – Light Guide Film.

Visus delivers light satisfying the most stringent demands of cellular phone, NB and keyboard designers to bedazzle the consumers, while dramatically slashing costs and allowing a far simpler keyboard assembly. Many years of optical, material and manufacturing research have culminated into this patented breakthrough family of products.

New backlight technology is disruptive in few major aspects:

  • Keyboard and keypad illumination is more uniform with almost no energy consumption and enhanced front panel design options.. Visus light guiding films (LGF) have slashed power consumption by 15 - 50 times and reduced the number of LEDs tenfold to just one LED for most MPs being order of magnitude better than other LGF products and using least expensive low rank LEDs.
  • Ultra-thin Multilayer LGF/LGP are manufactured by continuous extrusion process similar to optical fibers and roll to roll micro-embossing and offer a throughput undreamed of with conventional molding. They are in line with a latest LED miniaturization with 0.2 mm SMT devices already available.
  • Available at any size including World’s first large keyboard for desktops.
  • Flexible, Bondable, Bendable  Special optical and material properties of new LGF allow its use with flexible LCDs and to laminate/bond it to any substrate (including a black one).
  • A combination of four patented VISUS core technologies has been  indispensable for a development of a new product family:
    • HOW™ Hybrid  Optical Waveguides with unique optical architecture
    • ExFRACTOR™ extractor technology ensuring uniformity with reduced LGF thickness
    • FoCoupler™ LED optical couplers to collect LED radiation and inject it into LGP
    • New Face Coupling architecture offered along with a traditional edge coupling scheme
    • Functional Flat Fiber (FFF) developed in cooperation with Visus’s strategic partner

 

 

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Information

Prototypes, POCs and small batches of high performance products are manufactured in-house. High volume production is carried out by ISO 9001:2000 certified high-tech manufacturing partners of Visus Photonics in Korea and USA.

Visus has strategic manufacturing agreements with a number of leading US and Korean manufacturing partners with an expertise in mass production of micro and nano-optical systems and exclusive optical materials.