The latest generation of sub 200um light guide foils distribute the light from side-firing LEDs giving bright and uniform illumination of keypads and other decorative features of electronic devices with reduced component counts, low power consumption and higher reliability.

Product Features

• Custom Light guide foils available in 100-200um thicknesses, 50um under development
• Typical cell phone keypad can be lit with one or two LEDs (depending on LED placement)
• In-house 3D optical design to optimize light distribution for maximum performance
• Light guide foils typically supplied integrated with dome array for convenient assembly
• Can also be supplied without dome array, with adhesive rim when tactile solution not required
• Compatible with most common keypad technologies
• Highly cost-effective, typically brighter than EL based solutions
• Backlight coloring can be software controlled by use of multiple sets of colored or RGB LEDs
• Zoned illumination by use of multiple Light guide foils on one device

Typical Applications

• Used under keypads of mobile electronic devices, media players, PDAs

Application Notes