Technical > Audio/Video Chat > What is an "LED TV"?

What is an "LED TV"?

I do not see any specifications for an LCD screen like IPS, TN, or any other LCD technologies. So I have to assume it is actually an LED TV.

Jet

If you look at any of Samsungs monitors, it unfortunately doesn't list the actual screen type of any.

Its an Led Backlit LCD

reply to Bob
There is a lot of marketing double speak going on there.

But to answer your question directly, "What is an LED TV?".

This is simply a LCD TV that is lit by LED's from behind rather than being lit from the edges with various flouresecent bulbs.

There is a link on the page you rpovided that has a brief explanation of the differences in flat panel TV's that offers some explanation of the LED.

OK, thanks guys. I didn't realize we weren't at the point of having real LED TVs yet.

It would seem the advantages of the LED backlight aren't worth the extra cost.

You haven't seen one in person then.

LED-LCD are generally brighter, or at least better color reproduction, generally better viewing angle, thinner, cooler, and use less energy. Plus, in theory, they should have a longer lifetime than CCFL-LCD.

At this point I wouldn't consider buying anything but a LED-LCD.

Possibly -- that's why the last 32" I purchased came from Costco and i paid less than $350 for it.

reply to Jahntassa

the only very minor issue i have with led edge lit lcd panels is the uniformity of the light across large lcd panels.
its obviously brighter on the edge of the display panel than the center, most regular people wont even notice it.
the other very minor issue is the white tone with a slight blue hue to it but again, most people wont notice this.
even CFL back lit lcd displays have a very slightly "warm" white due to the phosphor used for the CFL tube.
overall, i prefer led edge lit for many reasons, less power consumption & heat, thinner display panel and longer life of the led's, the led's would most likely outlive (depending on how hard they are driven) the lcd panel (chances of a single pixel defect is much greater).
i dont drive the led's more than level 1, its better on the eyes when youre 3 feet from the set in a dark room and its better for the led's.
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Did you try calibration? Methinks that should fix color issues, unless the panel is really crappy. Not sure about TVs, but LCD monitors in general come with brightness cranked up way too much.

BTW, I did some search, and there are some full array LCD LED TVs currently for sale -- they are not cheap, though the Sony is priced dirt cheap at some places. (scam?) »reviews.cnet.com/2795-6482_7-399.html
For the OP, That article also explains the various types of "LED TVs"

Edit: Here's another, somewhat older CNET article on full backlit LED backlit LCDs: »news.cnet.com/8301-17938_105-100···tentMain
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the very minor issues i discovered is not something im really that concerned about.
after all, at age 42, my vision is bad enough anyway
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reply to aurgathor
Thanks for the info guys, especially the cnet links. I need to look at them further.

I stopped by a couple stores* today. I really don't see a difference between the LCD and the LED-backlit images. They looked the same to me. The LCD/LED images did look better than the plasma images; the plasmas seemed washed-out.

* I'll admit that a brightly-lit store is not the best place to compare images, but I'm not about to bring home 5 different TV sets to compare them!

I just realized another issue. The room has windows with bright sunshine opposite the TV. This means a lot of reflections on the screen. It's a problem with my current CRT screen. I imagine it will be even worse with a large flat screen.

Most HDTVs has glossy screens. It seems like this would be a problem with the bright reflections. Does anyone know of any 37" or 40" TVs with a matte screen and that will play movies/videos via a USB port or WiFi?

I bright room was a concern of mine. I bought a 46" Vizio with a matte screen based on how bright it looked in the store. At factory settings, this TV looks great in a very bright room.

reply to Bob

Could've been just a defective panel or a reflection from something. (i.e. lightbulb)

BTW, as per »store.sony.com/webapp/wcs/stores···overview Sony had a blowout sale on their 46", triluminous, full-array backlit LED TV for only $999.99 ...
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Definitely not a reflection. It's inherent in the panel and makes me question the earlier statement: "At this point I wouldn't consider buying anything but a LED-LCD."

The real question is it a one-off defect, or will I have similar artifacts if I buy one of these $800 TVs.

Regarding the Sony, 46" is too big for the room. Do they have any 40" versions?

They do have 40" models, but they're only edge-lit.
While they're definitely better w.r.t. size, power usage, and longevity, I don't think edge-lit LED have any inherent advantage w.r.t. picture quality.

I'd just go to some more stores, widen the scope, and take the time to look at more TVs before buying one.
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