Brighter, purer lights give flat-panel and rear-projection TVs a boost
By Jim WillcoxPosted 06.30.2005 at 11:00 pm 0 Comments
Pricey plasmas aside, most types of big-screen TVs and projectors are lit by an incandescent bulb or fluorescent lamp, which lasts anywhere from 1,500 to 8,000 hours and isn´t pure enough to reproduce the full spectrum of colors available in HDTV. By the time your bulb burns out, though, you might have better options: TVs illuminated by LEDs and lasers can last 10,000 to 15,000 hours and create a wider color gamut. Engineers are working on boosting LED light into a beam bright enough to illuminate ever-larger flat screens.