LED Light Guides...Guiding...Your way..........

NEW Front Light Guides for E ink and Other Reflective Displays.........For Day/Night operation.

Light Displays from the Frontside to Dramatically Lower Power Consumption.

Front Light Guides are used with products from Watches to PDA's, E-readers, Phones and up to Outdoor Displays. They offer much lower power consumption than traditional backlighting of LCDs requires. Front light guides are clear plastic films that distribute the light from an array of edge lighting LEDs to the whole viewing surface of a display from the frontside. Traditional Back lighting of typical LCD displays is only 15% efficient or less. But, Front lighting a display with our technology is typically more than 80% efficient. So, there can be a dramatic savings in battery life of handhelds with displays using Front Light Guides.

New Nano-Imprinting Technology creates unique Light Guide Plates for Reflective Displays used in Portable Electronics

E-Reader using Front Light Guide Plate. Front Light Guide Plate lighting standard map. Front Lighting Assembly including LEDs.

Benefits

Uniformity better than 85%
Transmission better than 85%
Brighter with Fewer LEDs
Ultra-Thin Profiles
Lower Cost
Flexible (within limits of selectied materials.)
Available in complete Assemblies including Front Light Guide, LEDs, Flex Circuit, Coatings and Adhesives.

Advantages

Uniformity improved by unique ability to vary Micro-lens density (Fill-Factor) over the surface.
Micro-lens technology provides brighter transfer of light to the viewer.
Use of Light Guide Plate compared to Injection Molded Plates reduces profile.
Roll to Roll manufacturing offers lower cost alternative to molded plastic light guides.
Applications include PDA’s, Tablets, Notebooks, GPS’s, Cameras, Custom Displays.
Customized sizes, requirements and specifications are accommodated within capabilities.

Complete Light Guide Assemblies are an option....

We have the capability to provide complete solutions to your lighting requirements. This includes the Light Guide, Reflector, LED array or Light Bar, Cover Glass, Touch, Coatings and Adhesives integrated into a complete assembly ready to install in your application. Each assembly is designed to meet your specifications. This assembly can include an LCD, Eink or other type display with appropriate Front Lighting as required. Sizes may range from a small Watch size up to large 32" display sizes.

However, we can provide individual components such as Front Light Guides, Reflecors, LED arrays or Light Bars as required as well.

Front Light Guides : How they work

Light travels from the LED array on the left into the Front Light Guide Plate (FLGP) in blue. Internal reflection optical characteristics keep the light within the LGF. Only the local Micro-Lenses re-direct the light down to the LCD, E-ink or other type reflective display. Light, then is reflected by the LCD out towards the viewer. The density or fill factor of the Micro-Lenses can control the amount of light which is redirected. This allows the FLGP to provide uniform lighting across the display area. Also, it allows the use of fewer LEDs to provide uniform lighting to reflective displays saving power and cost.

Front Light Guide Plate Specifications

View Area Size	<2.8”	2.8”- 5”	5” – 7”	7” – 14”	14” – 41”
LPG Thickness	0.2-0.4 mm	0.2-0.6 mm	0.2-08 mm	0.5-08 mm	0.5-2.0 mm
LED Recommended Height	0.3 mmT	02.-0.4 mmT	0.4-0.8 mmT	0.4-0.8 mmT	0.5-2.0 mmT
Luminance Uniformity (%)	> 85% typ	> 85% typ	> 85% typ	> 85% typ	> 85% typ
Materials	Polycarbonate, PET, TPU, etc.
Temperature Ranges	Std: up to 50C Extended: Up to 70C+

See MicroLens Technology

See Mastering and Manufacturing Processes

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