New OLED site

M

mertero

n00b
Joined
Oct 4, 2004
Messages
5
Hi Guys.

Just wanted to announce our new OLED related site. OLED (Organic LEDs) are a new kind of displays, already used in many devices. OLED promise to bring great resolution and clarity displays, low power consumption, and can be seen from all angles. OLEDs can be made very thin, and even transparent, and also flexible! Just like in that Minority-Report movie. This is an exciting technology, and we recently published a new site with OLED news, articles, forums, and more.

The address is -

www.ol-ed.com

Cheers,

Ron.
 
A few questions about OLEDs.

1) How does the contrast ratio compare to LCD?
2) How many colors can OLED display?
3) How true are the colors?
4) What is the response time of OLED?
5) Can OLED have dead pixels?

Thanks.
 
Here's some answers:

1) At least 1000:1...also self luminous like CRT, no backlight required
2) 24-bit color
3) NTSC 100% +
4) Under 1ms
5) I've heard they can, but their bigger problem is that blue LED is not very long lived.

It seems their estimates for commercial production have been a little premature...I heard in 2002 that Sony expected to begin mass production of OLED in 2003...That's obviously passed, and now they concede that though OLED will be produced on a larger scale next year, it will only really be used at first in small screens like cell phones and cameras....They say consumer monitor and TV use won't be readily available for 2-5 years....As long as they come out as soon as possible, I'll be an early adopter!

I also wonder why OLED gets so much attention, but not SED? Hmm.
 
OLED TV or Computer screen is indeed a bit far away, but there is a lot of progress already. Sony recently announced that their latest clie PDA will use an OLED screen (only in japan), and have started to mass produce these panels. There are many small devices that use OLEDs already - cell phones, mp3 players, in-car audio systems, military units, and even an electric razor.

I think OLEDs are the most interesting because they are already used in real products, they have good power consumption, they make really good screens, with excellent refresh rate (Some quote a 1/1000 figure when compared to LCD!), they are eco-friendly, and in the future they'll be able to make them transparent or flexible.

And of course they are really (but really) thin - not "flat" like a 5 centimeter LCD or plasma - we are talking literally millimeters.

Ron
www.ol-ed.com
 
A couple things about OLED before folks get too excited (I'll be devil's advocate in this thread). While they have great contrast (measurable) and great color (also measurable) they also have extremly short lifespans and currently there is no way around this problem. The green OLED only lasts ~5k hours (please correct me if I am wrong, they may have extended it to 10k this year), and if the red and blue are used to create greens (which is one proposed solution) the colors are distorted and not as true as using all three colors. AFAIK the nearest estimate for TV sized OLEDs is 2010 (which seems feasible), however by then other flat panel technology may have a pretty strong foothold (and things like FED may be here, also). I will be sad if OLED is forever destined to only rule the 5 inch or less market.

I am also very excited about OLED, but am concerned about the issues it's facing and how long its taking to overcome them.

Ron - I like your site a lot, thanks for posting it. :)
 
JackieO, you are right except that the color with the shortest lifespan is blue....Some companies had been experimenting with 2-color red/green displays for certain applications where full -color wasn't necessary, and one technician even discovered a way for the same OLED element to change color from red to green depending on the direction of the current, which would mean only pairs of pixels, not three, would be required if it could be perfected, which would really help cut down on current draw and increase clarity and resolution....I heard from a website sometime back that Kodak had gotten the blue to 10,000 hours half-life. Hopefully it's higher now.

Great to have some devil's advocates to keep us in check before we all start becoming OLED fanpersons before they're even released!
 
Synful Serenity said:
JackieO, you are right except that the color with the shortest lifespan is blue....Some companies had been experimenting with 2-color red/green displays for certain applications where full -color wasn't necessary, and one technician even discovered a way for the same OLED element to change color from red to green depending on the direction of the current, which would mean only pairs of pixels, not three, would be required if it could be perfected, which would really help cut down on current draw and increase clarity and resolution....I heard from a website sometime back that Kodak had gotten the blue to 10,000 hours half-life. Hopefully it's higher now.

Great to have some devil's advocates to keep us in check before we all start becoming OLED fanpersons before they're even released!
Click to expand...

Ah, thanks for the correction, I knew it sounded wrong when I was saying the greens would be off. Brainfart! :D

@ 17 inch OLED initial cost - man, I don't know that anyone even has a clue. Maybe I will ask around at work tomorrow but I haven't heard any sort of guesstimate pricing on any OLEDs over 5 inches yet. Or maybe mertero or SS have heard something.
 
Blue is indeed problematic. I hope that this will be solved. One of the nicest thing about OLEDs though is that pixels that are not showing colours (say a black square altogether) is not "on" and does not requrie any current to show it. I'm sure lifetime will quickly rise.

17"? heh heh, not yet, buddy! hopefully OLEDs should be cheaper then LCDs to make! but in the first couple of years, it will probably be expensive...

Ron

www.ol-ed.com
 
to ron: thanks for posting the link, i like your site a lot. really informative stuff there!

to all: thanks for the GREAT post so far. it's been quite some time to read something this informative and matter of fact.
 
I know this is slightly OT, but have you guys seen the new SED displays that have been showing up? I'm not sure what to think about SED at the moment. Toshiba is pushing it *hard* and are claiming it will be better than pdp and LCD @ or above 40 inches. We'll see, I guess.

http://www.avsforum.com/avs-vb/attachment.php?s=&attachmentid=26738

http://www.avsforum.com/avs-vb/attachment.php?s=&postid=4348138&fullpage=1 (left to right: pdp, sed, lcd).

http://www.watch.impress.co.jp/av/docs/20041005/ceat1_13.jpg

http://www.weblogsinc.com/common/images/3586251161548137.JPG?0.05339619221561154
 
SED sounds like it'll be the first new technology to be available for sale. I haven't heard anything about plans to produce SED computer displays, though, only TVs. No idea what they'll cost either.
 
JackieO said:
I know this is slightly OT, but have you guys seen the new SED displays that have been showing up? I'm not sure what to think about SED at the moment. Toshiba is pushing it *hard* and are claiming it will be better than pdp and LCD @ or above 40 inches. We'll see, I guess.

http://www.avsforum.com/avs-vb/attachment.php?s=&attachmentid=26738

http://www.avsforum.com/avs-vb/attachment.php?s=&postid=4348138&fullpage=1 (left to right: pdp, sed, lcd).

http://www.watch.impress.co.jp/av/docs/20041005/ceat1_13.jpg

http://www.weblogsinc.com/common/images/3586251161548137.JPG?0.05339619221561154
Click to expand...

Actually got to see the one in the last link. Looks very eye catching from 20 feet for sure. At 4 feet it sort of reminds you of being too close to one of those huge diamondtron displays. Up close you see pixels, and I mean you SEE pixels. Contrast was what caught my eye the most, just need smaller pixels. It was a display unit, no one would discuss price. Didn’t even get a smile smirk or grin when I asked.

Keep in mind Toshiba was the company that sold the end all be all LCOS set..The ones they had to buy back from everyone.

But then, I am a cynic and it’s been a long week ;)
 
You must log in or register to reply here.
Back
Top