Thin LED Lightguides Put An End To Bulky Wearables


For efficient illumination of LCDs in wearables and other devices, GLT unveils lightguides as thin as 0.25 mm and using as few as one LED. This illumination includes both functional, such as backlighting and frontlighting of displays and indicators, and decorative, such as lines of light or illumination of logos.

For wrist-worn devices such as GPS and fitness watches, the new lightguides not only enable ultra-thin profiles, but also allow reduced power consumption, resulting in increased battery life and enhanced performance. With proper design and LED coupling, the efficiency and uniformity of GLT backlights can outperform much thicker lightguides.

Illumination needs within the industry are increasing with the proliferation of wearable devices such as glasses, headwear, shoes, wrist-worn devices and any other electronic enabled device that can be worn. With a trend towards smaller and lighter weight wearables whose weight is based on batteries and electronics, any savings in power or total package size from the illumination component results in lighter weight and smaller size devices. This is where thinner and more efficient lightguide technology is helping the industry, the Press release states.

For proper illumination of displays in head-worn wearables including Augmented Reality (AR) and Virtual Reality (VR) devices, customized lightguides with focused and directed light emissions patterns are provided.


For wearables such as purses, hats and clothing, the lightguides are available in the 0.25 mm to 0.40 mm thickness range. They are made of polycarbonate (PC) material that can be flexible. These lightguides can be combined with single color LEDs as well as RGB (red, green, blue) LEDs to produce backlights for logos and decorative elements. Since very thin PC material can be flexed, it is perfect for applications where it must be manipulated to create.

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