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40" OLED Television Revealed at SID
deglr6328 writes "Seiko Epson has unveiled a massive 40 inch OLED display prototype at this years Society for Information Display (SID) symposium in Seattle. The display was printed on to a backplane containing the drive electronics with a specialized inkjet process using Phillip's PolyLED technology. Samsung and Phillips also showed large scale OLEDs they say can also be scaled up to 'television sizes.'"
They've still got development to do. 260,000 colours aren't enough!
Why is the lady in that picture purple? Is the display that bright that she matches the flowers? Or is there some funky radiation coming out of that thing that has given her a nice glowing purple tan?
That the Epson display is not a single display at all (in that it isn't printed in one process), but a combination of smaller ones, more along the sizes of the Philips and Samsung ones.
I have seen the Philips display and I have to say the quality was good, there is slight horizontal banding where runs of the print head touch, but that's something that can be ironed out. Not quite up to consumer TV standards, maybe, but certainly showing promise.
This is pretty cool, and it's actually one thing my research is tied to. I dunno how long it's gonna take but we're hoping to be able to print these things on a variety of press types, at much faster speeds than inkjet allowing the product to be a lot less expensive.
Right now though it's too costly and inkjet is definitely not ideal for large scale production, but we're definitely headed in the right direction. The biggest issue is finding materials that will work in the product that can be printed. It's a big PITA.
That and how long with the OLED display they've built last? OLEDs don't like oxygen and the damn things will basically decompose. For large expensive displays like that there's still concerns in that area.
Either way, awesome approach, using the different colored nozzles is pretty clever, a lot of the current systems require separate coatings to be applied through various means. It'll still be a lot faster and cheaper down the road when large presses can be used.
Someone here made a calculation, and if we could print at 2000fpm on our Sunday 2000 Heidelberg press, all the displays in the world could be printed in a couple hours. Not like that would be practical or even likely.
Presently here, but not there.
http://optics.org/articles/news/10/6/4/1/samsung
This is photoshopped. The image on the screen is more clear that the detail of the stand it is framed in. The detail of the image on the screen and the fram should be on a par. But they are not.
That is BS. Credit of the photo is samsung themselves, so nobody outside of samsung saw it for real.
I am not saying samsung doesn't have an OLED display, I am just saying that that picture is a crock of PR shit if ever I saw one.
I am hoping I am wrong and we get awesome screens in the future.... but I just can't believe that photo.
You must also be suspicious of me being a samsung astroturfer "I can't believe it".
tinfoil hats abound
Yeah, they're using OLEDs on small devices, but not ones with long service lives (generally). While they do attempt to encase the OLEDs, they don't know how long they'll last since they're unstable in oxygen using the current technology. Using them in cell phones and digital cameras is good because the expectation is that one doesn't keep the things for long.
But if you're buying an LCD for your computer or as a television, you want it to last more than a few years without degrading.
Presently here, but not there.
As allways in these OLED dicussions the question is: /. brings a story about that, ThEn OLEDs gets really really interesting (as opposed to now: they are 'just' really interesting;)
How long before the display starts to degrade?
In other words: Have they solved the problem with OLEDs that they start degrading after a record holding short time?
When
But why is it that every single flat panel television is just completely too expensive? I love looking at them when I go shopping, but I fail to see the point in spending between $2000-$5000 for one of these displays. I don't care how many languages it speaks or what O/S it runs. What is the problem here? Is it really that expensive to produce large scale OLED/LCD/plasma displays? It seems regular ol' televisions have gone down in price, why not these larger flat panels? Is it going to be another 10-20 years before I can afford a reasonably priced unit?
"who wants to spend a grand on a TV that is gonna look bad in a couple of years." You're an optimist. With today's OLED technology it will look bad in mere months. These things make plasma TVs seem like they were built to last a lifetime, by comparison. Last I've heard, OLEDs are rated for something like 1000 hours life. At, say, 8 hours a day use, that's 4 months. (And 8h per day is already less than you'll have it in use when it gets shared between you, your SO and maybe a kid using it for the game console.) But that's not the biggest problem. The biggest problem is that the brightness doesn't even decrease uniformly across the whole spectrum. Each of the 3 colour components has its own decay time. So it probably will take less than 4 months before the image starts to get a bit of a wrong hue. I don't know about you, but I'm a bit of a perfectionist when it comes to image quality. I'm one of those nuts who bought a 9800 XT just to be able to play with 6x FSAA and 16x Aniso, and are already waiting for the X800 XT for the same reason. So something which is pretty much guaranteed to slowly go the wrong hue, I just don't need it. Not as a computer monitor, and not as a TV. Even if it was for free.
A polar bear is a cartesian bear after a coordinate transform.
So long as the quality and price justify it. My speakers cost about $2000 for a pair of them. Because of that expense, I expect that they will last for quite a long time, and they will. They are well build, from materials that last. Provided they aren't abused, there's no reason they can't work for 20-50 years. However, if you could offer me speakers with equal or greater quality that cost only $100, but would last only a year, I'd buy them.
It's a win for me, any way you hash it. First, technology is going to improve enough in 20 years, that I'd want to replace my speakers before then anyhow. This lets me basically stay on the cutting edge all the time. Second, it makes damage much less of a worry. I have to be careful with these speakers, as it would be a major expense to replace them. I would not need to worry so much if I'd only be out $100. Finally, the value of a dollar today is more than the value of a dollar tomorrow (because of inflation). I'd be better of economically to spend $100/year and invest the rest than $2000 now.
All that OLEDs will need to do is be cheap enough in comparison to the competition, and the disposable idea works fine. If they cost as much as LCDs, no thaks, I'll take the LCD and be happy. If they cost 1/10th as much, sure I'll take them, even if they have to be replaced once a year.
This isn't out of the realm of possibility. Remember these things are PRINTED on sheets using ink jets. Cheap technology, and we have much cheaper mass-production printers called web presses. Also the only part that needs to be replaced is the OLED screen itself, not the supporting electronics. S0 it really could end up being like razor blades. But the more expensive holder (handle) up front and then replace the screen (blade) when it needs it.
As an added bonus, OLEDs are organic (hence the O) and so not nearly the environmental problem of things like CRTs, even if replaced more often.
"Last I've heard, OLEDs are rated for something like 1000 hours life."
That was a typo. The real number was 10,000 hours, and this is the time the blue component of an OLED display lasts before fading. The green and red components last about 20,000-30,000 hours. There is still a lot of improvement to be made in stabilizing the organic componenents of OLEDs, so expect those numbers to improve over time.
Also, don't forget that an LCD display last also about 10,000-15,000 hours, after which the backlight has to be replaced (usually about as, if not more expensive than buying a new display). CRTs don't last forever, either. After about 20,000 hours the brightness of a CRT will gradually degrade.
Considering that OLED is a relatively new technology it would be quite foolish to label it as being impractical/useless, since there is still a lot of room for improvement (we're looking at prototypes here!).
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