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Liquid-Crystal-Based Device Provides Brighter Projection Display

Photonics Spectra
Feb 1997
A pixel device that uses polymer-dispersed liquid crystals could be the key to improved large-scale projection display, according to scientists at Spectra Science Corp. who developed the technology. The device demonstrated brightness that the company said is approximately 1000 times that of conventional phosphor-based projection television display. The technology uses the liquid crystals to switch on laser action in individual pixels with low-voltage electrical signals used in laptop computers. Scientists excited the device using a compact solid-state laser and switched it on with a 5-V battery.


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