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Polyester compound for brighter LED Tvs

Plastics News Europe staff
Posted 29 November 2012

Solvay Speciality Polymers, the Georgia, US-based division of Belgium's Solvay Group, has introduced a high-performance polyester compound for use in light-emitting diode (LED) televisions. The company claims the material delivers higher heat and light stability than competing products.

The company is reacting to the trend among television manufacturers to use fewer LEDs to reduce cost. Most flatscreen televisions use liquid crystal digital (LCD) arrays to produce a picture. As LCD displays do not generate light, they must be backlit either by fluorescent light or, as is increasingly the case, LEDs.

To get more light from fewer LEDs, a higher current is fed through the LED, resulting in junction temperatures over 150¡C. Solvay has developed its new grade, called Lavanta, that can operate at high junction temperatures and retain high reflectivity even after thermal and light ageing.

"Our new class of high-performance polyesters are a unique alternative that meets increasingly strict industry requirements including higher heat resistance, greater light stability and longer life," said Solvay Specialty Polymers' Glenn Cupta.

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