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LED TV

11/21/2009 7:56 PM

I was walking through my local Best Electronics the other day, and was startled by the picture quality on one of their display TV's. It was a Samsung 55 inch LED (not LCD, LED) television.

I have searched around the internet for reviews and everyone seems to like them, but I have not found much info on the technology or on expected reliability.

Any one have some insight or good web links. I am really tempted to go buy one, but for me they are 15000 MYR (=4400 USD) which is pretty pricey for a TV. I see in the US they sell for about 3000 USD. I would really like to know more about how they work before breaking down an buying one...

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#1

Re: LED TV

11/21/2009 9:03 PM

I don't know anything about the specific model, but LED offers a little better control over the color and longevity of the picture. Since the technology is still a bit new, prices have yet to fall, but at some point they will drop.

I personally use a 1080p projector (Optima HD20, to be exact) for my movies. I like the large screen and the resolution and color depth is very good. It is about 1/3 the price of the Samsung, but you will not get quite the color definition that you get from the Samsung or any LCD/LED display. However, I have a screen size that is 86" wide, which I prefer over a smaller LED/LCD display. It is much closer to a real theater.

If you have a hole burning in your pocket, go for it, but realize that a price drop is in the cards in the next year or so.

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#2

Re: LED TV

11/22/2009 12:18 AM
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#3

Re: LED TV

11/22/2009 9:51 PM

Steve S

Be a little careful in Malaysia and do your homework. Quite often the TV sets that you see in Malaysian stores, though the same model, are actually last years product.

You only find this out on your next trip to Hong Kong or Japan where the same updated model is the same price or cheaper.

That said, it is a nice picture.

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#4

Re: LED TV

11/22/2009 11:55 PM

Hi....

The LCD screen based TVs needs a back light. In current LCD TVs uses CFL (Compact florescent lamp) as a back light.

Recently lots of makers have started using LED as a back light. This TVs are called LDC with LED. They also mislead customer stating this is a LED TV.

I think you are talking about OLED TV. This is a expensive being a newer technology.

OLED TV means Organic Light emitting diode screen based TVs. LED being self light emitting diode does not need back light due to which the brightness level can be achieved higher at lower power consumption. It has also a very good response time, which reduces a picture drag seen as a shadow following fast moving image . One of the most important deficiency LCD TV has is viewing angle. i.e if you watch the LCD TV from extreme left or right side of TV the brightness level of picture varies. which will not be a case in OLED TVs.

This is what I know about LCD and OLED TVs.

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Hemant

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#5
In reply to #4

Re: LED TV

11/23/2009 2:23 AM

Nice, thankyou very much. That was the sort of thing I was looking for!

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#7
In reply to #4

Re: LED TV

11/23/2009 7:53 AM

Elaborating on what Hemant stated, the Samsung uses LEDs as the back light for the LCD screen in place of the CCFL (Cold Cathode Fluorescent Lamp) technology initially found in LCD displays. As I stated earlier, LEDs can provide a more consistent back lamp using less power (~40% less) and offer better life. Lamp color changes over time (aging) should be better controlled than CCFL backed displays.

The model I was looking at was UN55B8000. I don't know if this was what you were considering, Steve. It has a higher refresh rate (240 Hz) and a proprietary algorithm to reduce motion blur that tends to plague LCDs in general.

OLED TVs are very,very expensive, but do offer the advantages cited by Hemant. There may be longevity issues with OLED, but don't quote me on that.

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#8
In reply to #7

Re: LED TV

11/23/2009 7:12 PM

Yep, that was the one I was looking at.

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#6

Re: LED TV

11/23/2009 6:31 AM

I too am looking at the model you have posted and found it at 1999 usd .

I have not yet made the purchase.

Still waffling between it and a Sony LCD bravia (at a higher price)

Other threads on this site praise the longevity of LEDs. I wonder if that carries over to tvs?

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#9

Re: LED TV

11/23/2009 10:38 PM

Hi all...please all go and buy them...tell your family and friends...that way the price drop will be sooner and i can get one too. hehe.

I also saw that TV displayed quite nicely. Please note that the pictures/videos they use is a DVD/blueray (or even something more sinister) to get you to see 'the potential'. Connect it to your normal TV reception and you will not notice the difference between your current plasma/LCD TV. Quite a clever marketing strategy.

When the first LED TV's came out (they do it even now) the DVD playing always had ssslllooowww moving video to show you the brilliance. When I asked why they do this they said that the manufacturer requires this.

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