The OLED Thread

[DezNutz]

The purpose of this thread is to have one place for all talk regarding the new OLED (Organic light-emitting diode), technology.

The basic positives for this technology are the following;

1. Production Cost - Since OLEDs can be printed onto any suitable substrate using an inkjet printer or even screen printing technologies,they can theoretically have a significantly lower cost than LCDs or plasma displays. Printing OLEDs onto flexible substrates opens the door to new applications such as roll-up displays and displays embedded in fabrics or clothing.
(source = http://www3.interscience.wiley.com/j...TRY=1&SRETRY=0)

2. Better Range of view - because OLED pixels directly emit light. OLED pixel colors appear correct and unshifted, even as the viewing angle approaches 90 degrees from normal.

3. Better Contrast Ratio - LCDs use a backlight and cannot show true black, while an "off" OLED element produces no light and consumes no power. Production contrast ratio = 1,000,000:1

(source = http://www.engadget.com/2007/10/01/t...tarting-decem/)

4. Better Power Consumption - OLED's are powered off in black and Energy is also wasted in LCDs because they require polarizers which filter out about half of the light emitted by the backlight. Additionally, color filters in color LCDs filter out two-thirds of the light.

5. Better Response Time - OLEDs also have a faster response time than standard LCD screens. Whereas a standard LCD currently has an average of 4-8 millisecond response time, an OLED can have less than 0.01ms response time.

(source = http://www.samsungsdi.com/contents/e...ed/type01.html)

6. Thinness - OLED are much thinner than either LCD's or Plasmas.. Sony has already released a model that is 0.3-mm thin.

(source = http://www.engadget.com/2008/04/16/s...9-inches-thin/)

Main Disadvantage of this technology are;

1. Lifetime - The biggest technical problem for OLEDs is the limited lifetime of the organic materials.In particular, blue OLEDs historically have had a lifetime of around 14,000 hours (5 years at 8 hours a day) when used for flat-panel displays, which is lower than typical lifetime of LCD, LED or PDP technology – each currently rated for about 60,000 hours, depending on manufacturer and model. But in 2007, experimental PLEDs were created which can sustain 400 cd/m² of luminance for over 198,000 hours for green OLEDs and 62,000 hours for blue OLEDs.

(source = http://www.cdtltd.co.uk/press/curren...leases/602.asp)

-Update- Sony has claimed improved blue OLED lifetime to around 30k hours, but that claim is being contested.

(Source = http://www.cdtltd.co.uk/press/curren...leases/602.asp)

2. Price - As with any new technology the first generations are more expensive than existing technology, but price has already shown to drop.


Technology in use;

1. Sony's released 11" TV.

(source = http://www.engadget.com/2008/04/16/s...9-inches-thin/)

2. Samsung has released a 31" model at 2008 technology show. (they do not expect to commercialize this set until 2010)

(source = http://www.mydigitallife.info/2008/0...ly-43mm-thick/)

[john_1958]

Samsung Builds World's Biggest OLED TV

Samsung said its 21-inch OLED display features 6.22 million pixels in wide ultra-extended graphics array (WUXGA). The OLED offers brightness of 400 nit, contrast ratio of 5,000:1, color gamut of 75 percent and fast response times, making it ideal for high definition video,

hope they get kinks out as i think they deteriorate faster than today's LCDs and plasma screens.

[erdega79]

oled screens sound good but it's not as good as sed screens which will be out next year http://www.dealerscope.com/doc/283069189778166.bsp

[takezo]

Whatever... New TVs sporting new technologies are alway plagues with issues and short commings, it usualy takes a few revisions to get it just right. In the mean time battle tested LCD, and Plasma technology is at their peak performance and relyabillity. New TV's that support new tecnology will push the price of older TVs down. That's he true beauty of progression.

[georgir]

6.22 megapixels is huge, but they are cheaty bastards.
i dont get how they come to this number...
it says WUXGA, so either 1900x1200 or 1900x1080, meaning some 2 million pixels. even counted separately as red,green,blue subpixels gives either 6.156 or 6.84 megapixels, not 6.22.
what's the deal here?

also, largest oled or not, it's still small for a TV. they are nuts to brag about it.

[AV_Integrated]

Originally Posted by georgir

i dont get how they come to this number...
it says WUXGA, so either 1900x1200 or 1900x1080, meaning some 2 million pixels. even counted separately as red,green,blue subpixels gives either 6.156 or 6.84 megapixels, not 6.22.
what's the deal here?

WUXGA is 1920x1200 - or 1080p which is 1920x1080.

In this case, it is the latter...

1920 times 1080 times 3 (red/green/blue) = 6.22mil

Give me 1080p front projection and a 10 foot screen any day of the week for Blu-ray viewing!

[PurpleAardvark]

But the 20" is sooo cute. Ralf I know that is what the g/f would say. I like projections, but give me one of those 57" 1080p LCD, daddy likes.

[georgir]

Originally Posted by AV_Integrated

1920 times 1080 times 3 (red/green/blue) = 6.22mil

oops, so 1920 and not 1900. my mistake.. whatever...
counting subpixels is still cheating though.

[Blackraven]

Isn't there a 40 inch model already for release?

[erik1974]

All about the next display generation an OLED products at http://www.oled-display.net or http://www.oled.at (german)

[thunderhawk]

Nice! Thanks

BD with 32 bit color depth and the OLED tech would definately be nice indeed!

[Zinn]

Originally Posted by Blackraven

Isn't there a 40 inch model already for release?

It's a hybrid, Using a LCD for color/image and a oled for light. Possible a lower res black & white version.

[Deciazulado]

Originally Posted by Zinn

It's a hybrid, Using a LCD for color/image and a oled for light. Possible a lower res black & white version.

You mean the backlight is a 2.07 million b/w Oled (1080 x 1920)?

That would be great! A great compromise, as the biggest fault of LCDs is their relatively limited contrast ratio. As long as the LCD rgb filters are deep (saturated) enough, you'll get 99% of what you want in a color image, as the b/w OLED will control the (almost infinite) contrast ratio (as long as it's around 4000:1 I think you get an excellent image for most purposes)
Now if the OLED resoluion is less than that, well, edges in the image may look a little softer?

[Zinn]

Originally Posted by Deciazulado

You mean the backlight is a 2.07 million b/w Oled (1080 x 1920)?

That would be great! A great compromise, as the biggest fault of LCDs is their relatively limited contrast ratio. As long as the LCD rgb filters are deep (saturated) enough, you'll get 99% of what you want in a color image, as the b/w OLED will control the (almost infinite) contrast ratio (as long as it's around 4000:1 I think you get an excellent image for most purposes)
Now if the OLED resoluion is less than that, well, edges in the image may look a little softer?

not a 1920 x 1080 but a lower res tv, or maybe it only has LED not OLED.

[Kyot]

Sony is already selling the OLED's, but you can't really do much with 11'.

http://www.sonystyle.com/webapp/wcs/...52921665327724

[DetroitSportsFan]

Wake me up when they get to 55"-60" for under $4,000, and have more than a 30,000 hour lifespan.

[tiger roach]

Looks like it's only for your hardcore early adopters at this point...

3mm thick - that is pretty slick. When the 72" is affordable I'll get it and stick my current panel in the bedroom.

[Kyot]

Im waiting for someone to say 'Blu movies looks amazing on the new OLED' lol

It ll be a few years for the 70's to come around.

[Slapper]

11 feet for $2500?!?! I'm in!

[CAB]

Originally Posted by Slapper

11 feet for $2500?!?! I'm in!

Glad someone wrote it.