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.'"

Comments

And only 3 to 5 years before I can buy one...

[jilbert]

They've still got development to do. 260,000 colours aren't enough!

Re:And only 3 to 5 years before I can buy one...

[cluckshot]

There are a lot of myths about the resolution and reception of the human eye.

The optical sensor array in the eye is neither dense or accurate. It really is a pretty lousy sensor array by the standards of a modern digital camera. There are processing kludges and some curious process tricks that make the output fantastic though.

For example the resolution of any single sensor in the eye on Luminance is about 5 powers of 10 bright to dark. This is fairly consistent to our modern films and digital sensors. However the eye by some curious tricks adjusts its sensativity so that it produces nearly 14 powers of ten bright dark. For you guys "Grand Challange Types etc." who are building automatic robots take a hint.

In addition to the great range done by process tricks, the sensor is also curiously a "rate of change" sensor not producing any fixed value data like a modern camera. As such it allows a calculus by subtraction (Slide Rule stuff for you guys old enough to remember) to provide motor control in a linear process.

But for the less detailed analysis the sensor here has very lousy resolution and very bad quality output compared to modern cameras. It isn't a very good sensor at all. It is the processing that brings out the great detail and such.

Making use of higher resolution?

[NKJensen]

The particular display mentioned has size, not resolution as its main quality; some of the other displays mentioned have high resolutions.

Which kinds of UI will benefit from such displays?

Can we expect something useful from e.g. virtual 3D viewing (remember those books with embedded 3D-items hidden in 2D pictures)?

inkjet is one thing, but what about on a press

[emorphien]

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.

I call BS

[Anonymous Coward]

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

expiration date?

[DiniZuli]

As allways in these OLED dicussions the question is:
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 /. brings a story about that, ThEn OLEDs gets really really interesting (as opposed to now: they are 'just' really interesting;)

A question

[ThinWhiteDuke]

Can any knowledgable slashdotter answer a simple question: Why is it difficult to produce large OLED display? I understand that it more or less amounts to printing the pixels onto a substrate. If one can make 17" OLED display, where is the engineering complexity in making a 40" display?