Hi guy,

Just want to share some info that i have found regarding the new samsung led tv B8500 series which was recently showcase and u can refer to below detail that i have taken from the net.

http://www.hometheaterforum.com/forum/thre...podcast-samsung - Video showing the new samsung b8500 series led tv

After walking around the Cedia show for a couple days and going back and forth between all the TV manufacturers to see who's hot and who's not this year the Samsung 8500 series was by far the best TV! I am not sure which Blu-ray disk was playing or even what player they were using mainly because I was too blown away by the picture quality to look. The black bars that show in a typical 16:9 movie were more black than the TV's bezel which was the 1st thing I noticed. The color and depth of the picture was amazing. I remember thinking that I needed to get one myself and I rarely do that. None of the other manufacturers gave me that "gotta have it NOW" feeling this year like the Pioneer KURO sets did when they 1st came out. This is the kind of TV that makes you pop in Blu-ray movies you hate just to see how awesome it looks. When I 1st saw the 8500 I noticed that it was still very thin even though it was fully LED back-lit as opposed to the edge lit LED on the 8000 series. The styling was subtle and expensive looking and I am glad they did not incorporate the red touch of color bezel (as some people hate it)

I can not stress how much better this TV is from the other LED models that Samsung offers with edge LED or a traditional cold cathode LCD panel such as the B650 series (although I'm excited about the 65" B650 because of it's size). The local dimming allows for amazing....amazing black reproduction. Toshiba for example had a section in their booth that was very dark with two TV's inside. The TV on the left was their full LED back-lit SV series and on the right they had their ZV series non LED lit set (equivalent to the B650 Sammy for the most part). the color reproduction on both were great and about equal, but the non LED set had so much light leaking out of the supposed "black" scene areas that I couldn't believe the difference.

I went over to the Sony booth next to look at the XBR10 and honestly I was a bit disappointed with the picture quality compared to the 8500 Samsung. It didn't give me a feeling of "wow" at all and the fact that it's edge lit well... don't get me started. I also heard a rumor that Sony purchased their LED's from Samsung this year...If I was Sony I would be a bit scared since Samsung is out selling them by a ton this year.

With all the TV tech floating around from the various manufacturers I was confident that the 8500 was the one...although I do have to say that I was impressed with the LG SL90 set. If I am not mistaken the contrast ratio on the Samsung 8500 series is 7 million to 1 and the LG SL90 is only 3 million to 1 so the Sammy comes out way on top in that respect...granted a lot of other factors play in to the TV beyond contrast as we all know, but I do think that the 8500 may officially be the best TV of 09!

I do have to give some credit where credit is due though to Toshiba who has a nice LED set with local dimming (the SV670) and it is at a great price point.

Lastly...In another forum we were trying to figure out the actual contrast ratio that the human eye can truly see at any given time and compare it to the new TV's. (Maybe some of the calibrators could chime in on this) I was in a Runco training last year and the person doing the training said that the human eye will optimize to a 400 to 1 contrast at any given time even though its overall spectrum is in the millions. I have another person in the Toshiba forum that heard 20,000 to 1 was the max at any given time. With this being said Contrast #'s from the manufacturers seem ridiculous without some frame of reference

Anyone know?

This post has been edited by squall_12: Sep 16 2009, 11:20 AM

Actually, I went around to find out how my old HD ready panny performed against the current ones...result, new ones perform not by much even though its FullHD.

But those Samsung LED ones are just marvelous! But of course expensive.

I believe Samsungs R&D division in display technologies is very well backed. Their breakthru last year for the LED backligthing with local dimming was pretty impressive. This year their edge lit LED backligthing was pretty darned good as well. Black levels are pretty good. I am really looking forward to see this years implementation of the LED backlit local dimming capability sets. I have seen some reports that say the black levels are phenomenal and would possibly match if not trump Kuro black levels. The only issues that remain are viewing angles and blooming due to the fact that there are less LEDs for backlight than pixels.

I believe that LED backlighting technology and improved local dimming algorithms is the future of LCD TVs. The sad thing is if Panasonic does not buck up, plasma technology might find it difficult to catch up.

I wonder if they still using the cheaper white LED solution or the RGB ones on this new TV?

if i am not wrong samsung always had use white LED solution as is cheaper and performance wise compare to RGB ones different not light day and night...

Actually, if u know what to look there is a difference. Colour accuracy and more stable greyscale reproduction is the benefits of RGB vs white LED. It is also supposed to improve the blooming but I don't have proof of this but I do know that the Sony Series which uses the RGB solution has less effect that the Sammy.

This is the one reason why Sony's LED backlighting last year was a touch better than the Sammy A950 series.

Edit: Since I have seen the 2 implementations before I don't really think it is a fair comparison since the dimming algorithms are different, so this is speculation that the difference is due to RGB vs White LEDs.

This post has been edited by anfieldude: Sep 17 2009, 11:21 AM

cheaper yes...

performance, RGB is better..

also white LEDs are not as stable over time.. they age faster and the color changes..

of coz, if got local dimming that might prolong the LEDS since not every white LED is seeing 100% duty factor when TV turned on..

samsung is good and will continue so because it has the support of the korean government , the korean banks and the korean people as well.

its R&D budget is so high , it put other brand and make to shame

it has since 3 years ago overtook the jap on sales , design and innovative-ness and i'm betting , very soon, it may overtake the reliability and brand image against the big one , SONY .

just look at LGs new models and you know , like the jap , the koreans are a very dynamic breed

their LCD monitor is everywhere and sammy will take the lead in producing bigger screen size OLED tv soon.you can count on it

This post has been edited by sunnyK: Sep 17 2009, 05:19 PM

Deleted to avoid IP concerns...

This post has been edited by de_lasoul: Sep 18 2009, 10:17 AM

halo.. I sell LEDs la..

the fact you mention in bold means you don't know how they make white LED.. LOL..

Deleted to avoid IP concerns..

This post has been edited by de_lasoul: Sep 18 2009, 10:34 AM

Thanks guys for making and selling all these items.

You are the fellas who make our pockets koyak but still IMHO it is worth every cent of it. This life dont want to enjoy it then dont know when only can get to enjoy it.

I am loving mine now but do not have much time to enjoy.

Wish I could just have more free time.

This post has been edited by braveheart: Sep 17 2009, 06:15 PM

well the white LEDs are based on Blue Dice usually made of InGaN with yellow phosphor coating above it.. over time, due to aging/degradation of the phospor, the white light emitted would shift is hue due to this..

what has that got to do with the lens???

deleted to avoid IP concerns....

This post has been edited by de_lasoul: Sep 18 2009, 10:16 AM

both u guys just show go pee next to each other & see who's is bigger ma settled d lor...

Both engineering sifus showing koli, whoever wins, i also lespect ...

well maybe you are more privileged to some manufacturing trade secrets so thanks for the input on these, but that don't change the fact that RGB is still the better way to produce white color albeit at higher costs.. which was what the initial comments was about..
not to mention, blue+yellow = white doesn't fill up the whole Color gamut very well.. RGBs are better.

as for the comment in bold, the initial bin sorting will not be able to solve aging/time dependent factors on yellow phosphor aging characteristic due to usage over time.. the fact that phosphor ages unevenly across the LCD panel at different LED locations due to different operating times, means there is no way of controlling the aging evenly.....

also as for ultra bright LEDs in both these categories, the other half of the equation is the electronic drive circuits.. that's very important in preserving/prolonging the life and performance of the LEds.. so each TV manufacturer probably have their solutions for these..

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Added on September 17, 2009, 6:56 pmnothing to argue or win la..

having technical discusson ma..

me more on the final end product application of LED side, taiko de_lasoul is manufacturing of LEDS side.. just different viewpoints to share..

This post has been edited by ar188: Sep 17 2009, 06:56 PM

Yeah, yeah, sharing is caring, we all also can main forum sambil belajar, memang value added

alternatively, can see how far is the pee's travel distanse or how high is the pee's altitude

eh? thought u on the island side?? balik d ka? so not dropping by anymore i guess ...