OLED TVs: Technology Advancements Thread - Page 356 - AVS Forum
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post #10651 of 10958 Old 08-20-2014, 08:48 AM
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Originally Posted by wco81 View Post
Even if people can tell the difference in the showroom, they'll notice the price difference a lot more.

Again, there is no mass market for quality.

What we've seen, especially in the last 10 years, is that consumers will choose price and convenience over quality every time.

So people have widely settled for lossy audio, lower bit rate video streaming and phone camera photos.


The only reason LG must be pursuing OLED is that they fear the race to the bottom with the Chinese if they stay with LCD.
I'd say that the things are the worst for audio than anything else, basically because truly lossless audio can only be found on torrents.


Try finding a legal version of Nirvana in lossless/studio quality and you'll end up with zilch. On most torrents Nirvana and countless others can be easily found in Lossless Quality like this (thanks to lossless audio buffs):


General
Complete name : D:\Nirvana - Nevermind (ORG Pallas)\11 - On A Plain.flac
Format : FLAC
Format/Info : Free Lossless Audio Codec
File size : 77.4 MiB
Duration : 3mn 17s
Overall bit rate mode : Variable
Overall bit rate : 3 289 Kbps
Album : Nevermind
Track name : On A Plain
Track name/Position : 11
Performer : Nirvana
Genre : Rock
Recorded date : 1991


Not that I would download it


For high quality video there's iTunes where there's almost everything in 1080p 5000kbps, not quite Blue ray but really close to it( ITunes uses HiP (5.1 or even high10) for compression which is tantamount to 10000 to 15000 BP (baseline 3.0 or main 3.0) which is used for streaming)


P.S if you truly care about quality of your audio than torrents are the only places where you can find really high quality audio. I guess it is this way because most people care about quality only when comes for free.

....

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post #10652 of 10958 Old 08-20-2014, 09:13 AM
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I haven't tried to sit down and really listen to differences between AC3 and DTS HD MA. My speakers probably aren't optimally placed and I care more about dialogue than effects or soundtrack most of the time.

But I know a lot of AVS members are more exacting on this.


As for the general consumer, even if 4K OLED looked way better, say comparable to the jump between old NTSC and ATSC, unless the prices are under $1k for a 42-inch display (and $1500 or less for 60-inch), people generally aren't going to be motivated enough to upgrade on a scale similar to the SD to HD transition, which was driven partly by the shutting off of analog broadcasts.

More than movies and TV shows, a new display type would have to demonstrate noticeable improvements for live sporting events (especially the spectacles like the Superbowl, Olympics, World Cup, etc.) at the same or lower price point.

Can OLED deliver equal or better motion resolution as plasma? Then again, most people are watching sports on LCDs and they don't seem to care.
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post #10653 of 10958 Old 08-20-2014, 09:35 AM
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Originally Posted by wco81 View Post
I haven't tried to sit down and really listen to differences between AC3 and DTS HD MA. My speakers probably aren't optimally placed and I care more about dialogue than effects or soundtrack most of the time.

But I know a lot of AVS members are more exacting on this.


As for the general consumer, even if 4K OLED looked way better, say comparable to the jump between old NTSC and ATSC, unless the prices are under $1k for a 42-inch display (and $1500 or less for 60-inch), people generally aren't going to be motivated enough to upgrade on a scale similar to the SD to HD transition, which was driven partly by the shutting off of analog broadcasts.

More than movies and TV shows, a new display type would have to demonstrate noticeable improvements for live sporting events (especially the spectacles like the Superbowl, Olympics, World Cup, etc.) at the same or lower price point.

Can OLED deliver equal or better motion resolution as plasma? Then again, most people are watching sports on LCDs and they don't seem to care.
No OLED can't deliver better motion than plasma, but for me the motion on OLEDs is ok as is(certainly better than on LCD), but than again I'm not a big sports fan.


For me there's a quite noticeable difference between AC3 and DTS especially where dialogues are concerned. On DTS voices sound more natural at least in Game of Thrones. I have the third season of Game of Thrones in two qualities one HBO on demand (AC3) and the other BD rips from my Blu Ray (DTS) and DTS sounds noticeably better (more depth and clearer which is great for voices)

....

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post #10654 of 10958 Old 08-20-2014, 02:14 PM
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No OLED can't deliver better motion than plasma, but for me the motion on OLEDs is ok as is(certainly better than on LCD), but than again I'm not a big sports fan.
Can't or Doesn't?

The response time on the OLEDs is really fast, because of this they can change the drive to make the motion as good and perhaps better. You make it sound like plasma motion is perfect. When plasma motion suffers from motion dithering, phosphor lag, and flickering. I didn't see them playing any video which exacerbates the plasma's phosphor lag, motion dithering or flickering.

I guess it depends on how you define "better"...

If they add black frame insertion in and try some other techniques it can be just as good or better. Question is what other sacrifices are made to achieve better motion.

In the material I watched I didn't notice much motion bluring at all on the LG OLED.
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post #10655 of 10958 Old 08-20-2014, 02:53 PM
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Originally Posted by wco81 View Post
Even if people can tell the difference in the showroom, they'll notice the price difference a lot more.

Again, there is no mass market for quality.

What we've seen, especially in the last 10 years, is that consumers will choose price and convenience over quality every time.

So people have widely settled for lossy audio, lower bit rate video streaming and phone camera photos.


The only reason LG must be pursuing OLED is that they fear the race to the bottom with the Chinese if they stay with LCD.
So spot on.

I do look forward to the mainstreaming of better quality if/when OLED begins to displace LCD. But when I say that, I realize most people still won't care.

There is no difference in HDMI cables. If you can see the picture without visible dropouts or sparklies, the cable is working at 100%. No other cable will display a better version of that picture. You're simply wrong if you think there is a better digital cable than one that is already working.
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post #10656 of 10958 Old 08-20-2014, 03:14 PM
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Can't or Doesn't?

The response time on the OLEDs is really fast, because of this they can change the drive to make the motion as good and perhaps better. You make it sound like plasma motion is perfect. When plasma motion suffers from motion dithering, phosphor lag, and flickering. I didn't see them playing any video which exacerbates the plasma's phosphor lag, motion dithering or flickering.

I guess it depends on how you define "better"...

If they add black frame insertion in and try some other techniques it can be just as good or better. Question is what other sacrifices are made to achieve better motion.

In the material I watched I didn't notice much motion bluring at all on the LG OLED.
I don't have any substantial complaints about the motion on OLEDs and I wouldn't change anything associated with it. I can just be a bit nit-picky at times that's all.


I never really observed phosphor trailing or flickering on ST60, however there's a dithering problem at hand. From what I can see Samsung's OLED TV doesn't suffer from these issues, howbeit it had some very slight blurring in Flight Club and I don't recall there being any blurring on plasma.


Driving OLED the way plasma is driven i.e via PWM or using something that imitates it (black frame insertion ) is madness in its purest unadulterated form.

Disclaimer

The following is hard to fathom for one that has high-school-only knowledge of chemistry and physics and no higher education on the following matters, noteworthy is the fact that for the sake of simplicity I've left out a lot of secondary specifics that contribute to the below-described process withal.


Plasma is driven via PWM (something BFI mimics) because you must first charge a phosphor by UV light through ionization of noble gases by applying voltage to noble gases i.e. turning gases into plasma and thus creating electron-holes via electron Number 1 which (UV light) kicks phosphors atoms to a higher energy level where they stay as long as gases stay ionized(charged). The second step is to apply current (electrons to fill the holes) using electron Number 2 which discharges ionized gases which in turn lets phosphors get back to their normal energy level and release energy in the form of photons (light).


With oleds you can simply make them release light (photons) by applying current! No hoop-jumping here. All genius is simple, ain't it...

....

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post #10657 of 10958 Old 08-20-2014, 04:34 PM
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Quote:
Originally Posted by wco81
Even if people can tell the difference in the showroom, they'll notice the price difference a lot more.

Again, there is no mass market for quality.

What we've seen, especially in the last 10 years, is that consumers will choose price and convenience over quality every time.

So people have widely settled for lossy audio, lower bit rate video streaming and phone camera photos.


The only reason LG must be pursuing OLED is that they fear the race to the bottom with the Chinese if they stay with LCD.
That's probably also why we are seeing 4K sets with virtually no content yet from most of the big boys (cart before the horse if you will ) mfr strategy : ( move up from 1080p product put 4K in premium space) for better margins and product differentiation and lets hope it generates more unit sales whether there are tangible benefits or not .

In LG case do that (like everybody else ) LG can't loose face or sales logically they have no choice but to go along for the 4K ride . Add in WOLED put in premium space strategy move 55" maybe 65" downstream some and they have a new premium market only they are serving (for now )
predictable logical (maybe not long term ?) survival strategy's so far (for the time being ) .............. until domestic PRC brands start making OLED and 4K in volume for export that is .Everybody else is in same boat except without OLED .

LG spokesperson has publicly stated they can't compete with PRC in 1080P 2K forgot where I read that one of the usual suspect trade web sites .

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post #10658 of 10958 Old 08-20-2014, 04:38 PM
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Originally Posted by stas3098 View Post
I don't have any substantial complaints about the motion on OLEDs and I wouldn't change anything associated with it. I can just be a bit nit-picky at times that's all.


I never really observed phosphor trailing or flickering on ST60, however there's a dithering problem at hand. From what I can see Samsung's OLED TV doesn't suffer from these issues, howbeit it had some very slight blurring in Flight Club and I don't recall there being any blurring on plasma.


Driving OLED the way plasma is driven i.e via PWM or using something that imitates it (black frame insertion ) is madness in its purest unadulterated form.

Disclaimer

The following is hard to fathom for one that has high-school-only knowledge of chemistry and physics and no higher education on the following matters, noteworthy is the fact that for the sake of simplicity I've left out a lot of secondary specifics that contribute to the below-described process withal.


Plasma is driven via PWM (something BFI mimics) because you must first charge a phosphor by UV light through ionization of noble gases by applying voltage to noble gases i.e. turning gases into plasma and thus creating electron-holes via electron Number 1 which (UV light) kicks phosphors atoms to a higher energy level where they stay as long as gases stay ionized(charged). The second step is to apply current (electrons to fill the holes) using electron Number 2 which discharges ionized gases which in turn lets phosphors get back to their normal energy level and release energy in the form of photons (light).


With oleds you can simply make them release light (photons) by applying current! No hoop-jumping here. All genius is simple, ain't it...
You and I are in the same boat.

Really it's the flashing of the image on the screen that makes the motion appear better visually. The OLED(s) will definetly take a beating doing either method you mentioned but it would impove things visually from a motion standpoint.
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post #10659 of 10958 Old 08-20-2014, 05:20 PM
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That's probably also why we are seeing 4K sets with virtually no content yet from most of the big boys (cart before the horse if you will ) mfr strategy : ( move up from 1080p product put 4K in premium space) for better margins and product differentiation and lets hope it generates more unit sales whether there are tangible benefits or not .

In LG case do that (like everybody else ) LG can't loose face or sales logically they have no choice but to go along for the 4K ride . Add in WOLED put in premium space strategy move 55" maybe 65" downstream some and they have a new premium market only they are serving (for now )
predictable logical (maybe not long term ?) survival strategy's so far (for the time being ) .............. until domestic PRC brands start making OLED and 4K in volume for export that is .Everybody else is in same boat except without OLED .

LG spokesperson has publicly stated they can't compete with PRC in 1080P 2K forgot where I read that one of the usual suspect trade web sites .
Well, despite losing some patents to Merck and licensing/buying a lot more the future of OLED still lies in the grabby hands of UDC which will sell anything to any one who cares enough to buy from them meaning that Chinese companies can soon go to UDC to get their own chain of supply, production technics and equipment. My guess is that Chinese or anyone else will soon enough be able get into OLED just as easy as they can get into the LCD business now thanks to UDC (the patent troll) and Merck (the production ( of OLED and LCD materials alike) usurper).


http://blogs.barrons.com/techtraderd...-consequences/

....

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post #10660 of 10958 Old 08-20-2014, 07:10 PM
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Well, despite losing some patents to Merck and licensing/buying a lot more the future of OLED still lies in the grabby hands of UDC which will sell anything to any one who cares enough to buy from them meaning that Chinese companies can soon go to UDC to get their own chain of supply, production technics and equipment.
UDC doesnt sell production equipment. The Chinese companies will have to use the same companies for most of the materials and equipment that are in Samsung and LG's supply chain. The same is true for their LCD fabs. The question is how long it will take the Chinese vendors to learn the techniques that will allow them to ramp yields and material efficiency. Thus far, manufacturing OLED's has been extremely difficult. One thing is for sure though, the Chinese government has made manufacturing OLED's a priority and they are throwing a huge amount of money at the effort.

You are right that UDC will license and sell phosphorescent materials to any and all OLED vendors.
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post #10661 of 10958 Old 08-20-2014, 08:55 PM
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Well, despite losing some patents to Merck and licensing/buying a lot more the future of OLED still lies in the grabby hands of UDC which will sell anything to any one who cares enough to buy from them meaning that Chinese companies can soon go to UDC to get their own chain of supply, production technics and equipment.
Interesting about the patents

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Originally Posted by slacker711
UDC doesnt sell production equipment. The Chinese companies will have to use the same companies for most of the materials and equipment that are in Samsung and LG's supply chain. The same is true for their LCD fabs. The question is how long it will take the Chinese vendors to learn the techniques that will allow them to ramp yields and material efficiency. Thus far, manufacturing OLED's has been extremely difficult. One thing is for sure though, the Chinese government has made manufacturing OLED's a priority and they are throwing a huge amount of money at the effort.

You are right that UDC will license and sell phosphorescent materials to any and all OLED vendors.
We can bet the PRC panel makers will eventually figure it out after all they reverse engineered or engineered their Chengdu J-20 air frame 'that is arguably as capable as our Lockheed Martin F-22 Raptor air frame wise
lots of clever folks over there .

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post #10662 of 10958 Old 08-21-2014, 04:38 AM
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UDC doesnt sell production equipment. The Chinese companies will have to use the same companies for most of the materials and equipment that are in Samsung and LG's supply chain. The same is true for their LCD fabs. The question is how long it will take the Chinese vendors to learn the techniques that will allow them to ramp yields and material efficiency. Thus far, manufacturing OLED's has been extremely difficult. One thing is for sure though, the Chinese government has made manufacturing OLED's a priority and they are throwing a huge amount of money at the effort.

You are right that UDC will license and sell phosphorescent materials to any and all OLED vendors.
UDC can get you in touch with those who sell production equipment like Kateeva or Merck/Epson for printing or Inficon for vapor deposition. I read somewhere also that UDC have quite a few patents associated with LG's WOLED.


UDC and Merck already built two chains of supply one for Samsung the other for LG that's why building another one for Chinese will be even cheaper and easier.

....

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^ And clever hackers as well.
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UDC can get you in touch with those who sell production equipment like Kateeva or Merck/Epson for printing or Inficon for vapor deposition. I read somewhere also that UDC have a quite few patents associated with LG's WOLED.

UDC and Merck already built two chains of supply one for Samsung the other for LG that's why building another one for Chinese will be even cheaper and easier.

"Can get you in touch"?

I am pretty sure that OLED vendors will contact Kateeva or Epson without going through UDC. It isnt like trying to get a fake driver's license where you need to know somebody. It isnt great for Samsung/LG but commoditizing the supply chain for both materials and equipment is great for consumers. This will take a while though. We need to see more vendors actually shipping commercial displays.

With respect to the patents, LG owns the WOLED architecture patents but I would wager that quite a bit of UDC's work on lighting has applicability to the underlying material stack for LGD. It goes beyond their patents on phosphorescent materials.

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post #10665 of 10958 Old 08-21-2014, 05:37 AM
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Originally Posted by wco81 View Post
Even if people can tell the difference in the showroom, they'll notice the price difference a lot more.

Again, there is no mass market for quality.

What we've seen, especially in the last 10 years, is that consumers will choose price and convenience over quality every time.

So people have widely settled for lossy audio, lower bit rate video streaming and phone camera photos.


The only reason LG must be pursuing OLED is that they fear the race to the bottom with the Chinese if they stay with LCD.
LG is reported to have stated that is their main reason for focusing on bringing OLED TVs to market.



“LCD has no future. The Chinese can make even ultra high-definition TVs at lower costs,” says Oh Chang-ho, senior vice-president of LG’s OLED TV development division. “We cannot win this price war. For survival, we have to make products that they cannot make.”

http://www.ft.com/cms/s/0/068b8d02-0...#axzz3B1sMtVoe
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post #10666 of 10958 Old 08-21-2014, 01:03 PM
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"Can get you in touch"?
It isnt great for Samsung/LG but commoditizing the supply chain for both materials and equipment is great for consumers.
I think it's better for LG/Samsung than you do. Historically, the manufacturing ramp up of new technologies has only come when the supply chain has been commoditized. The early moves still have an advantage in process optimization, brand, et al. But without supply-chain commoditization, they can't drive costs down to get past early adopters. This is a case where enabling competition is actually good for the competitors.

There is no difference in HDMI cables. If you can see the picture without visible dropouts or sparklies, the cable is working at 100%. No other cable will display a better version of that picture. You're simply wrong if you think there is a better digital cable than one that is already working.
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post #10667 of 10958 Old 08-21-2014, 01:16 PM
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"Can get you in touch"?

I am pretty sure that OLED vendors will contact Kateeva or Epson without going through UDC. It isnt like trying to get a fake driver's license where you need to know somebody. It isnt great for Samsung/LG but commoditizing the supply chain for both materials and equipment is great for consumers. This will take a while though. We need to see more vendors actually shipping commercial displays.

With respect to the patents, LG owns the WOLED architecture patents but I would wager that quite a bit of UDC's work on lighting has applicability to the underlying material stack for LGD. It goes beyond their patents on phosphorescent materials.
I read somewhere that UDC got OLED to last for over 60,000 hours at 1000 candela meaning OLED might be already ready for lighting which might prompt Merck (Merck are the ones who have a couple of billions to go around) to take a leap of faith and try to commercialize OLED for lighting (through UDC, LG, Epson, Philips and very likely they will want to include a few Chinese companies down the road http://www.oled-info.com/tags/companies/merck) which will bring materials costs down rapidly. And seeing how Merck already got into solution processing for printing and cut deals with Epson and LG I can image that OLED lighting might take off soon enough.


In my mind when OLED lighting takes off OLED TV takes right off shortly thereafter owing to the costs of materials falling significantly and rapidly.


I don't think LG can ever on their own bring OLED prices down below the LCD levels ( for as everybody here astutely noticed OLED can displace LCD only if OLED costs less than LCD) and all seems to indicate that printed OLEDs may cost dirt-cheap.


P.S there's still no official word on mass OLED lighting commercialization from Merck only radio silence...

....

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post #10668 of 10958 Old 08-21-2014, 06:45 PM
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I think it's better for LG/Samsung than you do. Historically, the manufacturing ramp up of new technologies has only come when the supply chain has been commoditized. The early moves still have an advantage in process optimization, brand, et al. But without supply-chain commoditization, they can't drive costs down to get past early adopters. This is a case where enabling competition is actually good for the competitors.

I totally agree. The more manufacturers are buying materials and equipment the cheaper M&E gets for everyone meaning, for example, that the next ramp up from one mil to 10 might be cheaper for LGD than it is now if Samsung and JOLED ramp their production up first and vice versa or it can be multiple times cheaper if Merck and co. start making tens of millions of OLED lighting fixtures. Plus materials account for about 60 percent of the total cost of an OLED TV and if materials' costs get halved TVs prices will have fallen by at least 30 percent.


It's economies of scale e.g. the more you make the cheaper you can make it.

Here's a fly in the ointment, though: http://www.cnet.com/news/oled-tv-gro...than-expected/


Maybe the difficulty of producing OLED materials is the reason why Merck and UDC don't seem too keen to take a headlong leap into OLED lighting or even to build OLED manufacturing facilities unless there are sure-fire orders for OLED materials placed for years ahead and if that is so than OLED TV might be, just, might be even doomed. I clearly remember Merck saying that they see no future in vapor-deposited OLED TVs. And the irony is that the only reason why there's no OLED printing is because there's basically no materials for OLED printers...

....

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Well, despite losing some patents to Merck and licensing/buying a lot more the future of OLED still lies in the grabby hands of UDC...

And when polyhedral oligomeric silsesquioxanes from UDC make it to the mass market(2 to 4 years) we may very well expect 100-140k hours at 400 nits and over 60,000 hours at 1000 nits.
Is that why the attack on UDC .. Merck believes their fluorescent blue material is being replaced by UDC material in the next 2 years?
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Is that why the attack on UDC .. Merck believes their fluorescent blue material is being replaced by UDC material in the next 2 years?

Let me put it this way UDC make 1.3 bucks off every AMOLED display made and Merck and companies they supply (the whole chain of supply for Samsung including UCD) make over 7 bucks per AMOLED display.



Merck supply "ingredients" for OLED materials just like they supply "ingredients" for LCD materials. UDC mix these ingredients and sell them either directly to Samsung or their chain of supply. So what I'm saying is that UDC "blue" is for the most part made up from EMD Millipore's (Merck didn't spend US$ 7.2 billion for nothing ) singles. Howbeit UDC have amassed a lot of patents concerning OLED which means if Merck sell fluorescent blue UDC get a percentage or if UDC sell fluorescent blue made up of Merck's materials (and there's no alternative), well Merck get paid, either way.


Merck and UDC play in the totally different leagues and if one sunny day UDC become big enough to threaten Merck's positions Merck will do what they do best they will buy it.
On the second thought I think there might be anti-trust issues if Merck decided to buy UDC.

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Last edited by stas3098; 08-22-2014 at 04:49 PM.
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post #10671 of 10958 Old 08-22-2014, 04:57 PM
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And just because UDC called dibs on polyhedral oligomeric silsesquioxanes and patented it first (or got patents associated with it) doesn't mean they don't have to get the rest 100 singles that make up "blue" to make "blue".

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post #10672 of 10958 Old 08-22-2014, 05:17 PM
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Here's some more on why Kateeva's or anybody else's printing equipment is useless and may stay this way for a long while.

Even with the availability of production ready IJP printing equipment, the industry still lacks emitting materials that perform as well in solution as in the more typical powder form. However, a number of companies are working on proving solution based material comparable to the powder, including Universal Display (dopants like polyhedral oligomeric silsesquixanes and solution processing technics)DuPont(dopants), Sumitomo (polymers) and Merck (both small molecule and polymers). On December 13, the Korea Herald announced that Merck (EMD in the US), a leading material producer, is in talks with LGD (LG Display) to develop a solution based materials for the large size OLED displays. Merck solutions are designed to process in air without performance reduction.

http://www.oled-a.org/news_details.cfm?ID=799

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post #10673 of 10958 Old 08-22-2014, 11:34 PM
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The linked article uses no words like "useless".

There is no difference in HDMI cables. If you can see the picture without visible dropouts or sparklies, the cable is working at 100%. No other cable will display a better version of that picture. You're simply wrong if you think there is a better digital cable than one that is already working.
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post #10674 of 10958 Old 08-23-2014, 07:44 AM
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Originally Posted by rogo View Post
The linked article uses no words like "useless".
I was just about to say the same thing. Stas, all that article says is that the industry lacks materials that perform *as well as* powder. Nothing about "useless". In fact there is nothing in that article regarding the degree to which it underperforms.
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post #10675 of 10958 Old 08-23-2014, 08:02 AM
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Well I finally say my first OLED television. My local Best Buy finally got a 55" LG. Forgot to note the model number. This is probably ho-hum to folks on this thread, but I've been wanting to see one for a long time.


Blacks looked great, as far as I could tell in a showroom (Magnolia room, slightly darker than rest of store). They had the OLED showing a different loop than all the other TVs so any direct comparison wasn't possible. I noticed some motion artifacts (kinda like judder) which I'm going to assume is the source material for now. Hope so at any rate.


I also noticed screen door effect. Even from about 10' back with my old eyes the pixel structure was evident on solid colors. I've not seen SDE discussed in regards to OLED. Is there something about the way LG structures their pixels that makes SDE more visible? I hope this improves. I bring it up because I am not someone who is particularly sensitive SDE. I haven't been able to discern pixel structure from 10' back since the LCD RPTV days. I could not detect SDE on the LCDs and one plasma right next to the OLED.


One final note, just for giggles. Best Buy always puts up these big handy placards for each manufacturer showing all their models and the features for each. It's set up as a table with a column for each model and rows for each feature (eg. size, smart TV, 3D, refresh rate, yada yada). For LG there were 3 OLEDs listed, the 55" and 2 other bigger sizes. For 2 of the 3 OLEDs there was a bullet indicating LOCAL DIMMING. Whaa??? Okay... I guess you could make the argument that each pixel is its own zone... But then why 2 of the 3 models marked that way? And local dimming implies a backlight to me anyways. Keep in mind this placard is not some white board drawn up by some junior salesman. I'm talking about the big pre-printed placards that are in every BB. Doing their part to bring confusion to consumers I guess. Or am I not understanding something?
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post #10676 of 10958 Old 08-23-2014, 08:54 AM
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No, it's common to have marketing write-up stuff that is technically nonsense. LG once said you could watch 3D lying down. Comcast insisted to me on the phone in the early days of their cable-modems, that their connection rate was 3 megaBYTES per second. (Etc.)
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Sooke, the pixel fill factor is pretty awful on that first-generation set. That could be why you detected "screen door."

It's worth noting if it gets better on the 4K sets, for sure.

There is no difference in HDMI cables. If you can see the picture without visible dropouts or sparklies, the cable is working at 100%. No other cable will display a better version of that picture. You're simply wrong if you think there is a better digital cable than one that is already working.
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Quote:
Originally Posted by rogo View Post
Sooke, the pixel fill factor is pretty awful on that first-generation set. That could be why you detected "screen door."

It's worth noting if it gets better on the 4K sets, for sure.

Agree. Saw my first OLED (55EC9300) at Best Buy yesterday as well and one of the only small negatives was how much worse the screen door was than on an equivalent LED/LCD. Hoping that the interpixel spacing is reduced by at least 50% on the 4K panels and that alone is a reason to go for a 4K OLED even if there is not 4K content (in addition to the significantly less visible dead/stuck-off subpixels)...
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post #10679 of 10958 Old 08-23-2014, 05:20 PM
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Quote:
Originally Posted by tgm1024 View Post
I was just about to say the same thing. Stas, all that article says is that the industry lacks materials that perform *as well as* powder. Nothing about "useless". In fact there is nothing in that article regarding the degree to which it underperforms.
It's not about performance and kinda is at the same time. Merck themselves say that their materials for printed OLEDs (which coincidentally happen to be very hard to produce) outperform their materials for vapor deposited OLEDs (which are hard enough to produce, too). http://hdguru.com/coming-soon-afford...d-oled-uhdtvs/


"Perform as well in solution as in the more typical powder form" was about the fact that there are a lot of impurities in materials and after those impure soluble OLED materials are deposited they tend to precipitously turn to sh!t or in other words into hydrogen.


The problem with solubles is that they are mighty hard to produce and even harder to come by at present. Why do you think every isn't rushing into printing?. Well, for one, you'd have to jump 3 burning hoops to make something like 2-phenyplyridine (the process of making it involves 3 unit-operations alone and even a slight disturbance like presence of the air spoils the whole batch) and big pharma doesn't like overcoming difficulties very much.


I'm very hopeful, though, that EMD Millipore (Merck's US branch or something like that) can mass produce materials needed for OLED printing in tandem with UDC/Dupont (dopants) and others with Merck at the forefront. I'm just not seeing it happening for the next few years, because first they obviously need to build (or at least upgrade their facilities) new production facilities for existing are obviously no bueno. I think we will see printing taking off by late 2015 or 2016 if not then I don't think we will ever see it take off.


En passant, in reality they are not that hard to produce. They are just that hard to produce without impurities.

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post #10680 of 10958 Old 08-23-2014, 06:11 PM
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I came across an article about a new plasma etching system that was supplied to LG earlier this month for OLED television production. "It greatly improves the yield as compared to existing etching systems including the vacuum plasma method, and drastically reduces etching costs."

An even better etcher is planned for release in the first half of 2015.

http://global.ofweek.com/news/APP-su...-Display-17038
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