SED to Replace OLED, PLASMA, and LCD Panels.

[LungExpansion]

I read not long ago that SED which is similar in manufacturing to OLED but doesnt suffer the lifespan problems of OLED will be coming out next year. From what I understand it will make OLED, PLASMA, and LCD panels a thing of the past.

Anyone else know about this technology and when we will see it?

 

[LungExpansion]

http://engadget.com/2005/09/12/first-toshiba-sed-tvs-coming-in-march-2006/

100,000:1 contrast ratio
March 2006
Response time of less than a millisecond

 

[RampantAndroid]

Edit: Nevermind.

 

[Matthias99]

*Yawn*. Manufacturers have been talking about these for at least 2-3 years. I'd be impressed if it's actually out in 2006 (let alone at a semi-reasonable price). If they can get it working well and as cheap as they think they can, it will wipe out LCD and plasma HDTVs (and cut into LCD/DLP projection systems) at larger screen sizes. But that's likely to be years off.

Please search for many older discussions on LCD, LED, OLED, and SED panels.

 

[Matthias99]

Originally posted by: RampantAndroid
Life span problems??? What? I've never seen anything of OLEDs have a short life span. Like LEDs, they have very long life spans. Maybe if manufacutered wrong...but otherwise, no.

Um... OLEDs have life span issues. The blue LEDs, apparently, start to crap out or dim significantly after 3-4 years of use. That and the difficulty of making very large displays are why there aren't any commercial ones bigger than the screen on a cellphone or digital camera.

 

[ZeGermans]

I believe blue OLEDs have been made with 200,000 hours of usefullness... or something like that.. maybe it is 100,000 or something.

 

[Matthias99]

Originally posted by: ZeGermans
I believe blue OLEDs have been made with 200,000 hours of usefullness... or something like that.. maybe it is 100,000 or something.

Maybe in labs, but not in commercial production. They're still in the ~10,000 hour range before they lose significant brightness.

Here's an article from earlier this year (okay, nearly a year ago now) discussing the issue: link. I'm sure I could dig up some more, but that was the first one I conveniently found. Unless there have been major breakthroughs that I haven't heard about, lifespan is still an issue with OLED displays.

 

[LungExpansion]

Matthias99

Do you know if SED has memory/burn problems like plasma and lcd?

Im assuming prices will be outragous at first but should come down as more manufacturers come onboard.

 

[Jaihahih]

how is battery consumption with sed?

 

[zephyrprime]

Originally posted by: LungExpansion
Matthias99

Do you know if SED has memory/burn problems like plasma and lcd?

Im assuming prices will be outragous at first but should come down as more manufacturers come onboard.

I'm guessing it will have burnin problems like plasma since it generates an electron plasma. Also, I don't think SED has a manufacturing process similiar to OLED. The prices at introduction are anyone's guess but SED is supposed to be ultimately cheaper to make than plasma or lcd.

 

[mrkun]

Originally posted by: LungExpansion
Do you know if SED has memory/burn problems like plasma and lcd?

As I understand it, SED monitors are essentially flat panel CRTs, so this seems unlikely.

 

[Mark R]

It's unlikely that SED will have significant problems with burn-in - it is, after all, essentially a flat CRT.

Modern CRTs are quite resistant to screen burn, with the exception of very high brightness CRTs used in rear-projection TVs. So, I would expect normal brightness SEDs to be quite resistant - however, high brightness panels (to compete with plasma screens) may be more susceptible. However, there's no reason why the burn-in reduction techniques used in plasma screens couldn't be used in SEDs.

Having said that though, I have burned the screen on one of my CRTs (taskbar got burned in) and some CRTs at work, which are in regular use 24/7 are severly burned.

Again, like CRT there is no significant image lag or blurring (like with older LCD), nor are there backlights to burnout or dim.

However, how well the new tunneling electron emitters last isn't well known. It may be that these will 'burn-in' or age with time - unlike a CRT, where one electron source draws the whole screen, in a SED each pixel has it's own source.

 

[RampantAndroid]

Originally posted by: Matthias99

Originally posted by: RampantAndroid
Life span problems??? What? I've never seen anything of OLEDs have a short life span. Like LEDs, they have very long life spans. Maybe if manufacutered wrong...but otherwise, no.

Um... OLEDs have life span issues. The blue LEDs, apparently, start to crap out or dim significantly after 3-4 years of use. That and the difficulty of making very large displays are why there aren't any commercial ones bigger than the screen on a cellphone or digital camera.

You nailed me right before I edited my post out. I had seen confliting info...on a physics III presentation I had to make (on polarization) I breezed over OLEDs and it had said they were long lasting....

But I did a search and found they weren't in some cases. I'm guessing the later gen stuff is better, or the stuff on display.

Either way, I have seen a lot of stuff advertising OLED TVs and whatnot (one company was Samsung)

I would HOPE they wouldn't release it with such flaws?

 

[destrekor]

Originally posted by: Jaihahih
how is battery consumption with sed?

battery consumption? for what type of application? Battery as in the battery used in a UPS (uninterruptable power supply)? Or, a notebook battery? This technology will never see the thin-ness that notebooks require.

 

[Matthias99]

Originally posted by: RampantAndroid
But I did a search and found they weren't in some cases. I'm guessing the later gen stuff is better, or the stuff on display.

They've been getting better, but they are not up to the point where you can build them into a product designed to last 5-10 years (like a high-end TV). A few years ago they only had a ~1,000 hour lifespan, now they're up to 5-10k. You realistically need at least 40-50,000 hours of usable life for something like a TV (at least an expensive TV).

Either way, I have seen a lot of stuff advertising OLED TVs and whatnot (one company was Samsung)

I would HOPE they wouldn't release it with such flaws?

Well, everybody is talking about them, and they have started to be used more extensively in digital cameras and cellphones, but there haven't been any (large) TV displays using them yet. Once the lifespan issues are resolved, and large-scale manufacturing facilities are built, they should basically replace conventinal LCD panels for computer monitors and HDTVs. But that still seems to be a few years off.