Official Sony KDL-55W900A Owners Thread - Page 181 - AVS Forum | Home Theater Discussions And Reviews
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post #5401 of 5606 Old 06-14-2015, 05:45 AM
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Quote:
Originally Posted by *UFO* View Post
Sony's version of QD's is actually not QD's at all. It is simply a blue-led (short wavelength) with a yellow phosphor coating. This does not come near what cadmium based QD's can do, but very cost effective versus using actual QD's.
interesting. i havnt seen any firm confirmation either way, with sony either specifically stating in promotional material they still used QD's (their own version), or had a completely different technology that replaced it. sony now is using the "triluminous" tag,for many different backlighting technologies, which they have used since their first RGB led backlighting 6 or 7 yrs ago. the sony store i bought my 900a from told me some months ago that for the 2014 tv range sony developed their own QD technology and stopped using 3e party QD's from QDVision (but obviously the rep might be wrong, either out of ignorance or being deliberately misleading)

have you seen any reviews or technical analyses articles that specifically confirmed their high end 2014 or 2015 models dont use QD's ? (might be to early for the 2015 range since no in depth reviews from the better websites are available yet).

it would be odd if sony didnt have some sort of QD's for their own high end larger screen lcd tv's to provide the increaed color gamut needed for the newer rec.2020 color space. Samsung is using it in 2015 for their upper tier and making a big song and dance about it, so are 2 high end models from panasonic (interestingly one of those still using an IPS lcd screen, which is a first for QD's afaik), and panasonic is also using QD's for a few select high end models in 2015 (they stopped all plasma tv consumer products this year and deliberately included some QD models to maintain competitiveness)

when i prodded a sony rep at a different store about samsungs 2015 QD models, he replied "sony has been using that for a number of years already" (which is true, but his implied meaning was that sony was still using it). similar "dual meaning" statements from sony in 2015 are also in promotional print material, as a way to try and muffle the samsung big promotion this year of QD's i presume.

blue led backlighting for lcd tv's is one of the oldest and cheapest replacement methods since CCFL was abandoned a number of yrs ago by the better brands for their flagship devices, so having sony put a dollop of phospher on a legacy blue led and try and outperform QD or OLED in picture/video quality would be surprising. its deficiencies should show up in objective instrumental measurements (color gamut, color spectrum etc)

and here is a example of reviewers stating sony is still using QD's (but again it might be them misquoting a statement from sony that was intended to mislead)
Quote:
2. Picture quality focus – including Sony's Triluminos picture processing
What is it? Sony is focussing on picture quality as a key selling point for its 2014 TVs. This might sound obvious, but many of the other brands at CES seemed to be using design or 'smart' features as their main marketing attractions.
Heading up the picture attractions is Triluminos – Sony’s name for the quantum dot technology it introduced to such great effect last year for delivering a noticeably richer, more nuanced colour performance. Triluminos is found on all of Sony’s 4K TVs (more on these in a moment) as well as the W9 HD series.
from http://www.trustedreviews.com/opinio...u-need-to-know

and similarly for some of the upcoming 2015 models Sony is still promoting the same quantum dot technical benefit:
Quote:
'..........'.......To challenge OLED on color, the X910C uses the latest generation of Sony's quantum dot/nanocrystal light-filtering technology, which the company calls Triluminos. Sony promises that its brand-new image processor, the X1, will display all those colors more accurately......"
ref: http://www.tomsguide.com/us/hottest-tvs,news-18201.html

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post #5402 of 5606 Old 06-14-2015, 06:38 AM
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the plot thickens:

re 2015 led tv models, from a recent C-net article ......................
Quote:
............And while Samsung, LG and others tout quantum dots and nanocrystals, a Sony rep pointed out that its TVs were actually the first to market quantum dots way back in 2013 with models like the KDL-55W900A. As for the Truluminous technology found on the better 2014 sets, as well as nearly every 4K 2015 Sony TV? "We developed our own nano-crystal technology, which we have been using for the last two years that offers the same benefits as Quantum Dots.".........
ref: http://www.cnet.com/news/sony-tvs-go...droid-powered/

technically it can be correct to call this blue LED with phosphor nanaocrystals "quantum dot" because semiconductor nanocrystals having dimensions smaller than 10nm are also described as quantum dots.
ref: https://en.wikipedia.org/wiki/Nanocrystal

so we have come full circle: sony can technically say it has developed its own "quantum dot" nanocrystal technology, but the terminology and branding is somewhat ambiguous

i would love to see a direct spectral and color gamut comparison of these 3 quantum dot methods
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post #5403 of 5606 Old 06-15-2015, 12:28 PM
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Quote:
Originally Posted by Jorgens View Post
the plot thickens:

re 2015 led tv models, from a recent C-net article ......................
ref: http://www.cnet.com/news/sony-tvs-go...droid-powered/

technically it can be correct to call this blue LED with phosphor nanaocrystals "quantum dot" because semiconductor nanocrystals having dimensions smaller than 10nm are also described as quantum dots.
ref: https://en.wikipedia.org/wiki/Nanocrystal

so we have come full circle: sony can technically say it has developed its own "quantum dot" nanocrystal technology, but the terminology and branding is somewhat ambiguous

i would love to see a direct spectral and color gamut comparison of these 3 quantum dot methods


Interesting. I was lead to believe that Sony quit using Quantum Dots all together after they stopped making the W900A and X900A. Now they are saying they make their own QD's? I to would like to see a direct spectral and color gamut comparison of the 3 QD methods because I find it hard to believe they are better then what they originally used in the W9 and X9. I could be wrong though.
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post #5404 of 5606 Old 06-15-2015, 05:52 PM
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Interesting. I was lead to believe that Sony quit using Quantum Dots all together after they stopped making the W900A and X900A.
sony might not be able to use the "quantum dot" term because maybe it is a copyrighted brand name, but by all indications sony has now developed its own version of the same technology. quantum dots are nanocrystals, and as we just were able to confirm, sony's new inhouse method also uses nanocrystals (even if they market the improved performance by using the old "triluminous" name they have used since introducing RGB baclighting led's +/- 7 yrs ago

our w900a uses a QDVision nanocrystal technology (cadmium based), and i think its main competitor is Nanosys which uses Indium quantum dot technology (used in the 2015 samsung range ?). i suspect the new sony system is different again, both because it is designed in house by their own tech team for their own purposes and because they would want to avoid patent problems in copying either of those other systems to closely. i have not found any tech articles yet that compare these 3 systems. since these nanocrystals provide a significant improvement over simple blue or white led backlighting, i suspect all 3 of those nanocrystal implementations produce similar good result.

another forum member posted a little earlier in this thread an image with a spectral comparison of our w900a and the latest 2015 samsung lcd tv (js9000 model?), but i have no idea what article the image came from (it could be home made from by another forum user in a different thread, and there is no indication where the samsung graph came from). the spectral graph of our w900a producing white light at 6500K came from this website http://hdguru.com/sony-kdl-55w900a-led-lcd-hdtv-review/ in that same review they compare the spectral graph for white light taken from an ultra cheap chinese 4k lcd tv to illustrate the difference with a high end model like the 2013 sony quantum dot units.

this is a good general article from wired magazine discussing nanocrystal technology http://www.wired.com/2015/01/primer-quantum-dot/
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post #5405 of 5606 Old 06-29-2015, 09:44 AM
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File Description UPDATE System Software Update Release Date 6/29/2015 Version PKG4.540AAA File Size 156.27 MB Download


Sony has designed the BRAVIA® Televisions software update process to be customer friendly. This software update (version PKG4.540AAA) provides the following benefits:
Improvements over version PKG4.510AAA:
  • Improves general performance of the TV
Benefits provided by previous updates and included in version PKG4.540AAA:
  • Improves performance and stability of the Internet TV features
  • Improves video and audio playback performance
  • Enables Transport Layer Security 1.0 (TLS1.0) to enhance security of Internet applications
  • Improves reliability to the Secure Sockets Layer 3.0 (SSL3.0)
  • Improves performance and stability of your TV
  • Improves the login function for the Skype® online calling service
  • Improves stability of the Screen Mirroring function
  • Provides HDMI® 2.0 compatibility (Applies to 4K models only)
    Supports 4K 60p (3840X2160p (59.94/60Hz) YCbCr 4:2:0 8bit, 4096X2160p (59.94/60Hz) YCbCr 4:2:0 8bit)
  • Improves stability of the sound output with a Blu-ray Disc™ player using an HDMI connection
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post #5406 of 5606 Old 06-29-2015, 01:05 PM
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Funny I just received the update. Still this seems like every other update tho?
Can't complain at least we get new firmware.
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post #5407 of 5606 Old 06-29-2015, 02:03 PM
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I did the update earlier this afternoon and I agree with what helvetica said. Seems to be almost the same as the last update but as helvetica also said at least we still get updates and our tv's havent been forgotton about.
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post #5408 of 5606 Old 06-29-2015, 04:47 PM
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Anyone notice Sony (940c) scored low in color accuracy during the Value Electronics shoot out. The Samsung kick it's butt. I hope Sony rethinks their QD or whatever tech they're using.
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post #5409 of 5606 Old 06-29-2015, 05:35 PM
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Quote:
Originally Posted by helvetica bold View Post
Anyone notice Sony (940c) scored low in color accuracy during the Value Electronics shoot out. The Samsung kick it's butt. I hope Sony rethinks their QD or whatever tech they're using.

I read that to helvetica and it surprised me a little because the 940c is supposed to be Sony's flagship 4K set and you would think that its PQ would be unmatched. I wonder how our W9's would score against it? I bet our tv's would beat the 940c as well in PQ. I still cant figure out why Sony is useing 120hz panels in their 4K tv's. You would think that for their bread and butter 4K tv's they would be using higher refresh rate panels but from what I understand they arent.
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post #5410 of 5606 Old 07-02-2015, 05:30 PM
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Originally Posted by helvetica bold View Post
Anyone notice Sony (940c) scored low in color accuracy during the Value Electronics shoot out. The Samsung kick it's butt.
all 4 sets used in that shootout were uncalibrated, and even if sony's are usually pretty good "out of the box" it isnt really a realistic comparison of the real potential any of these models. Looking at how that shootout was done, it seems pretty superficial to me compared to some of the usual in depth review and calibrations from other websites we normally would look at to guide our buying decisions.

yesterday i saw for the first time the 2015 sony range of 4k models for the asia pacific region at our local sony store, and at first impression they looked very good (running looped demo video clips). colors were very vibrant and great detail and textures. they had been setup earlier the same day and the sales staff hadnt even received their training instruction from the sony tech's yet. when i in previous weeks i looked at the new 2015 range of samsung 4k models, those just didnt have the same appeal to me even if their image was pretty spectacular (and being 4k it should be !). to me however as an initial comparison, the video on the samsungs just seemed flatter and blander. part of what appealed to me more in the sony's is the very good sony motion control, and for the 2015 models i also still prefer the colors and textures it creates.

it is possible sony's own nanocrystal implementation in 2014 and 2015 is not yet as good as that of the 2 big global tech companies that till now have supplied most of the market (nanosys and QDVision), but with the 2015 models it the first time a direct comparison will be possible (since from this year panasonic, LG and samsung also started using them). it probably will take the next 6 months for a number of better in depth technical reviews of these 2015 models to appear before we will know how sony's QD implementation compares to the other major brands.
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post #5411 of 5606 Old 07-02-2015, 07:48 PM
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I stand corrected about the color. Jorgens you will find this review interesting. if you haven't read it already.

"The company hasn’t used quantum dot technology since its 2013 W9 and X9 televisions, but its wide colour gamut (WCG)-capable LED backlight (retaining the same TRILUMINOS marketing term) allowed the KD55X9305C to reach 91% of DCI-P3 standard anyway with [Colour space] set – somewhat ironically – to “BT.2020“. [Colour space] “DCI” came in slightly smaller at 89% DCI-P3."

http://www.hdtvtest.co.uk/news/kd55x...1506224127.htm
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post #5412 of 5606 Old 07-03-2015, 12:15 PM
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I bought my W9 in May of 2014 and it has a production date of 1/2014. Since I have owned it it never ceases to amaze me on how beautiful the PQ is when I turn it on. Its still gives me and my wife that wow factor everytime. From regular HD programming, to Blu ray, to Nextflix ect it has been an awsome experience. Not once have I ever thought of replacing it with another tv and after seeing all the new tv's that have come out my mind still hasnt changed. 4K certainly hasnt changed my mind and I think the only tv I would even consider replacing it with is OLED. But OLED may not even get off the ground. Yes LG sells OLED sets but the price is way out of my ballpark. So Im hoping for a long life for my W9 because other then OLED I aint interested. Why? Because none of the sets of 2015 impresses me one bit.


Just thought I would add this for those interested: http://www.insideci.co.uk/articles/i...and-ready.aspx.

That pretty much puts the nail in the coffin for me even thinking of getting a 4K tv anytime soon. No 4K 3D means no 4K tv for me now or anytime in the near future.

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post #5413 of 5606 Old 07-03-2015, 01:48 PM
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hi guys, can anyone confirm if our w9 has HbbTV?
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post #5414 of 5606 Old 07-03-2015, 06:53 PM
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Quote:
Originally Posted by helvetica bold View Post
I stand corrected about the color. Jorgens you will find this review interesting. if you haven't read it already.
http://www.hdtvtest.co.uk/news/kd55x...1506224127.htm
thanks for posting the review helvetica, i hadnt seen it yet.

as you just indicated, this more in depth review pretty much confirms the sony set's ability to accurately reproduce color ( and it shows why the earlier "valuelectronics" comparison's is rather superficial ). from the hdtvtest ........

Quote:
......as we’ve discovered on previous Sony TVs, once greyscale was calibrated, colours fell into place very nicely, hitting an outstanding level of accuracy.......
in the next 6 months we'll get more extensive reviews of the top models from the 4 major tv brands and it will become easier to determine what their respective strengths and weaknesses are. the main concern with the 2015 sony 4k range is the fact that full HDR implementation is still waiting on the promised firmware update, and the hdtvtest review seems to indicate there is still no 4.4.4 chroma support for 4k on its hdmi inputs (which is only relevant for gamers with monster pc's, but iirc both samsung and panasonic are already providing for this in 2015 )

Quote:
"The company hasn’t used quantum dot technology since its 2013 W9 and X9 televisions, but its wide colour gamut (WCG)-capable LED backlight (retaining the same TRILUMINOS marketing term) allowed the KD55X9305C to reach 91% of DCI-P3 standard anyway with [Colour space] set – somewhat ironically – to “BT.2020“. [Colour space] “DCI” came in slightly smaller at 89% DCI-P3."
imho their comment about sony not using quantum dots since 2013 just adds to the confusion for the general public. as confirmed recently in this forum thread, sony has developed its own version of nanocrystals to create the enhanced color gamut displays in 2014 and 2015 (even if it doesnt, or isnt allowed to, call it quantum dots anymore). iirc it is the use of these nanocrystals that allows the led backlight to create accurately the increased colour gamut now needed for DCI-P3 and the rec.2020 of 4k, and from everything i have seen in retailers showrooms and read in technical reviews the 2014 and 2015 sony models do so very well. only when we at some point get a direct comparison of the spectral output of the RGB color format will we be able to tell if sony's inhouse implementation of nanocrystals is as good as the previous cadmium based quantum dots in the 2013 sony's (such as our kdl-w900a's), and only that comparison will cut through a lot of the hyperbole and jargon spin from the various manufacturers and reviewers (or their supporters).

but even if the 4k technical standards have now recently been agreed, it is very early days to dip into that technology since most brands still havnt implemented it fully in 2015 and there is hardly any material available in that format. if anybody is at the stage of replacing/upgrading an older HD or SD set, sure many of these new 2015 4k new models are an excellent choice. but if you already have a good 2k model (be this plasma, oled or quantum dot), then there is absolutely no reason unless you have 7000k burning a hole in your pocket and an uncontrolled itch from a case of perpetual annual upgrade fever.
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post #5415 of 5606 Old 07-15-2015, 12:11 PM
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When hooking up a sound bar to this TV, is it still best to connect all devices directly to the soundbar via HDMI? Or will I get similar results using HDMI ARC?
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post #5416 of 5606 Old 07-15-2015, 04:44 PM
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When hooking up a sound bar to this TV, is it still best to connect all devices directly to the soundbar via HDMI? Or will I get similar results using HDMI ARC?
I would personally go all HDMI to the soundbar.
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post #5417 of 5606 Old 07-18-2015, 09:17 AM
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I'm having a hell of a time trying to screen mirror my Kindle Fire HDX to my Sony 900A. Is it possible? Am I doing something wrong? The 900A shows up on my Kindle as discoverable under display mirroring, but it won't connect to the TV when I select it. When I look at Screen Mirroring on the 900A and look at devices, nothing shows up as a device. What am I doing wrong?
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post #5418 of 5606 Old 07-26-2015, 02:39 PM
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ugh, i was connecting up my laptop to my W9 and I accidentally scratch the screen a little.
Is there any way to fix it? I buffed it with a micofiber cloth but its still there.
Normally Im so careful with the TV but I did a stupid thing.

Can I get Sony to fix it?
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post #5419 of 5606 Old 07-26-2015, 03:54 PM
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I am a happy owner of a W900 but I keep thinking a larger screen would be nice. How do the 2015 sets compare this the W900. I am going to buy a 50inch Vizio for my bedroom.
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post #5420 of 5606 Old 07-27-2015, 10:59 AM
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Quote:
Originally Posted by helvetica bold View Post
ugh, i was connecting up my laptop to my W9 and I accidentally scratch the screen a little.
Is there any way to fix it? I buffed it with a micofiber cloth but its still there.
Normally Im so careful with the TV but I did a stupid thing.

Can I get Sony to fix it?

How bad is the scratch helvetica? Got a pic? Sorry to tell ya buddy but Sony will not fix it due to its not something caused by them. I got a really really tiny nick in my screen because while moving our tv my wife acidentally hit it with and HDMI cord! Its so small you cant even see it unless your nose is right up to the tv so I can live with it. I tried rubbing mine out with a microfiber cloth and it didnt work.

Quote:
Originally Posted by Kobrinl View Post
I am a happy owner of a W900 but I keep thinking a larger screen would be nice. How do the 2015 sets compare this the W900. I am going to buy a 50inch Vizio for my bedroom.

My personal opinion? The 2015 sets dont match it in PQ or black levels. But thats my own personal opinion. To me it was one of Sony's best sets since they made the HX950 and the XBR8. But again thats just my own personal opinion.
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post #5421 of 5606 Old 07-27-2015, 03:34 PM
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I feel your pain Steve. Here's my scratch. I know it's not the end of the world but I feel really bad about. Thankfully it's just a surface scratch. There's no damage to the pixels.



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post #5422 of 5606 Old 07-28-2015, 09:47 AM
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Quote:
Originally Posted by helvetica bold View Post
I feel your pain Steve. Here's my scratch. I know it's not the end of the world but I feel really bad about. Thankfully it's just a surface scratch. There's no damage to the pixels.



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Yep thats a scratch all right! Mine you cant even see unless your nose is right up to it. And its not a scratch but a small, very small nick. As long as the scratch doesnt effect your pixels then your alright. I know how you feel though because my wife felt bad as well when it happened to our W9. But like you said its not the end of the world and as long as it doesnt effect the PQ you'll be alright buddy.
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post #5423 of 5606 Old 07-29-2015, 05:09 AM
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Quote:
Originally Posted by helvetica bold View Post
I feel your pain Steve. Here's my scratch. I know it's not the end of the world but I feel really bad about. Thankfully it's just a surface scratch. There's no damage to the pixels.

Sent from my iPhone using Tapatalk
I would cut my wrist if this have happened to me.


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post #5424 of 5606 Old 07-30-2015, 09:29 AM
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Quote:
Originally Posted by helvetica bold View Post
ugh, i was connecting up my laptop to my W9 and I accidentally scratch the screen a little.
Is there any way to fix it? I buffed it with a micofiber cloth but its still there.
Normally Im so careful with the TV but I did a stupid thing.

Can I get Sony to fix it?
ouch !! i can feel your pain there

from your description it could just be a scratch in the thin layer of superficial anti-glare coating on top of the screen, rather then into the gorilla type glass used for the panel itself. if that is the case you might only notice it when the tv is off, and it will have minimal effect on the image quality when the tv is on during normal viewing conditions (and might even not be visible ?)

if the scratch is just in this thin superficial layer, you might be able to make it less obvious by lightly buffing back the edges of the scratch line (so the edge stands out less), but i have no idea what materials you would use for this, and the last thing you'd want to do is cause further damage to the glass panel itself (or cause a chemical reaction on the unaffected area of the screen's anti-glare coating that will discolor it or alter it in any way). it is worth spending some time googling to see what other users have done to fix scratches with laptops or pc screens and tv's that have he same type of screens ..

its highly unlikely a sony technician could fix this, the coating covers the whole screen, and cant just be redo in one section to patch it up. the good news is that the gorilla type glass is extremely durable (similar to recent mobile phones), so you have a good chance the glass layer of the panel is not affected.
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Last edited by Jorgens; 07-30-2015 at 04:31 PM.
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post #5425 of 5606 Old 07-30-2015, 09:52 AM
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I am a happy owner of a W900 but I keep thinking a larger screen would be nice. How do the 2015 sets compare this the W900. I am going to buy a 50inch Vizio for my bedroom.
it will take a few more months before more extensive in depth reviews become available for the high end models from the 4 big brands, only then will it be possible to make an informed choice

from everything i have read/seen so far, the cadmium based quantum dot technology used in the high end sony panels (HD and UHD in 2013 ) has not been equaled or surpassed for quality in color reproduction. there have however been significant improvement in the brightness levels and contrast, but since almost no video source material (bluray or OTA) uses it, its benefit is mostly on paper as a future potential.

unless you have some great urgency to immediately buy something, take your time to make an informed choice once you have done your background reading and comparisons. the hunt is always more fun then the kill with AV gadgets, and most of us then have to live for many years with the final choice you make (and with our kdl-w900a's we landed pretty sweetly)
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post #5426 of 5606 Old 07-30-2015, 03:33 PM
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it will take a few more months before more extensive in depth reviews become available for the high end models from the 4 big brands, only then will it be possible to make an informed choice

from everything i have read/seen so far, the cadmium based quantum dot technology used in the high end sony panels (HD and UHD in 2013 ) has not been equaled or surpassed for quality in color reproduction. there have however been significant improvement in the brightness levels and contrast, but since almost no video source material (bluray or OTA) uses it, its benefit is mostly on paper as a future potential.

unless you have some great urgency to immediately buy something, take your time to make an informed choice once you have done your background reading and comparisons. the hunt is always more fun then the kill with AV gadgets, and most of us then have to live for many years with the final choice you make (and with our kdl-w900a's we landed pretty sweetly)

Great reply Jorgens. +++1
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post #5427 of 5606 Old 07-31-2015, 04:52 PM
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Jorgens you are correct. It seems I only scratched the anti-glare coating. The scratch is visible mostly when it's off and I hardly notice it while the TV is on. The PQ still looks fantastic. I won't require any therapy to cope w/ the scratch. Hands down this is my favorite TV I've owned. Not going to upgrade until Sony make a 4K equivalent!


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Jorgens you are correct. It seems I only scratched the anti-glare coating. The scratch is visible mostly when it's off and I hardly notice it while the TV is on. The PQ still looks fantastic. I won't require any therapy to cope w/ the scratch. Hands down this is my favorite TV I've owned. Not going to upgrade until Sony make a 4K equivalent!


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helvetica, if Sony havent made a 4K equivalent to the W9 yet they arent going to and besides I think thats what the XBR X900A was......a 4K W900A except the W9 still scored better then the X900A!!! That being said. My wife and I watched the movie "Lucy" last night and OMG this movie looked stunning on the W9. If you havent watched it yet on your W9 trust me you are going to want to buddy. The movie itself was ok, my wife liked it, but what pulled me in was the PQ and black levels. Stunning on the W9 is all I will say.
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helvetica, if Sony havent made a 4K equivalent to the W9 yet they arent going to and besides I think thats what the XBR X900A was......a 4K W900A except the W9 still scored better then the X900A!!! That being said. My wife and I watched the movie "Lucy" last night and OMG this movie looked stunning on the W9. If you havent watched it yet on your W9 trust me you are going to want to buddy. The movie itself was ok, my wife liked it, but what pulled me in was the PQ and black levels. Stunning on the W9 is all I will say.
I have the 55 in W9 as well and love it. I'm a huge gamer and this TV is perfect. So outside of Sony, is there an equivalent 4k TV to this W9? I need the low input lag.
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I have the 55 in W9 as well and love it. I'm a huge gamer and this TV is perfect. So outside of Sony, is there an equivalent 4k TV to this W9? I need the low input lag.
"If" and I use that term loosely there is an equivalent to the W9 in terms of a 4K tv it might have to be Samsung's 4K sets that use the same QD tech that Sony used in the W900 and X900A. Other then that I have no clue as I have zero interest in anything 4K Cahn2126.
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