Re: Excuses to watch B5 again

On Aug 5, 3:41 pm, Scott Lerman <smler...@xxxxxxxxx> wrote:

I had to do a bit of research on this one, figuring I missed the
announcement of some big new technology. What Samsung calls "LED TV"
is still an LCD display, it just uses LED's as the light source
instead of fluorescent bulbs.

Correct. Two nitpicks.

1) There are two kinds of LCD TVs - flat panels and rear projection.
Flat panels use flourescent bulbs, rear projection sets never have.

2) There are several kinds of rear projection TVs - CRT-based (the
big old clunkers) which were discontinued years ago, Liquid Crystal on
Silicon (LCoS, the JVC D-ILA and Sony SXRD sets, also discontinued),
DLP and LCD-RP. These all used incandescent bulbs (which cost about
$100 to $150 if you know where to shop and have to be replace every
three or four years) until recently. A few DLP and LCD-RP sets
started using LED light sources but they could not initially match the
brightness of actual light bulbs. I'm told they've gotten better, but
it has been years since I was in the market for a TV.

So both flat-panel LCD and various kinds of RP (and front-projection)
TVs are in the process of swtiching from their different kinds of
blubs to LEDs.

I'm hoping that someone eventually invents a way to drop an LED light
source into old sets in place of the bulbs, but we'll have to see.

Regards,

Joe

.

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