Video Asylum

TVs, VCRs, DVD players, Home Theater systems and more.

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bulb math

Posted by DavidLD on September 12, 2007 at 08:04:48:
OK, plasma may have a longer life, but the flat panel big screen DLP and LCD models use basically the same bulb technology employed in a DLP or LCD projector. As a consequence I don't see average cost per hour of viewing as really any different for flat panel DLP and LCD screens than for projectors. Owners of LCD and DLP flat panel screens are probably looking at calling a service tech when the bulb goes south. Generally bulbs are user replacable on projectors and prices of replacements have come down gradually. Do manufacturers spec bulb life on LCD and DLP panels like projectors?

As I understand it many plasma panels tend to gradually lose pixels over time and once enough pixels are lost to be noticable and bothersome, the entire set is toast. There used to be a gradual but significant decline in brightness of plasma sets after 2000 hours or so, but apparently the manufacturers have upped this number to over 10,000 hours.