Posted by
timothy
on from the patience-wearing-thin dept.
crwulff writes "The Rochester Democrat and Chronicle today is carrying a story about Kodak's newest OLED display venture. Unfortunately only a prototype to look at here but at least it is on the way in a couple years." It's worth it just for the photograph. Maybe best to hold off on a plasma TV ...
Re:Better pictures, more info
by
ReC
·
· Score: 3, Informative
Note that the answer to the "what about blue lifetime" is at that site: currently, Kodak has materials which hit 40000 hours for red & green, 20000 hours for white, and 10000 hours for blue (this is hours until 1/2 brightness).
--
The sun sets over Lake Washington as the party winds down.
There are many kinds of light, but only one Darkness in th
More Info on OLED
by
PunchMonkey
·
· Score: 5, Informative
The article is pretty sparse about what OLED is... Dupont has a pretty cool page about their displays with some info that reminds me of my science text book back in high school.
-- I'll have something intelligent to add one of these days...
May not be all it's cracked up to be
by
PhysicsScholar
·
· Score: 0, Informative
Semiconductor p-n junctions are the basis for LEDs and, when made into optical cavities, for diode lasers. Therefore, this may or may not yield increased resolutions, as anyone who's had a physics class or two could easily derive based on the known and accepted value of Planck's constant.
The radiative transitions in semiconductors could prove to interfere with the overall user experience, thus the intensity of light emission processes in direct band gap materials is several times lower in magnitude than in direct band gap semiconductors.
Bottom line -- don't buy one yet!
--
Department of Physics and Atmospheric Science, Dalhousie University, Halifax, N.S., Canada, B3H 3J5
Yes, the O stands for organic, which in this case
by
kfg
·
· Score: 5, Informative
means *plastic.* Polymers are organic compounds, which means containing carbon, as opposed the the silicon of traditional diodes.
I've also got his hot news flash for you, you're covered in bacteria already.
KFG
OLED
by
Anonymous Coward
·
· Score: 1, Informative
For anyone who doesn't know, OLED == Organic LED (Light Emitting Diode). Perhaps someone can ramble off the list of advantages they posses, though; I seem to have forgotten it.
-- Posted anonymously so as not to be a KW.
Re:These things make me nervous
by
Teun
·
· Score: 5, Informative
Organic light emitting diodes (OLEDs) are optoelectronic devices based on small molecules or polymers that emit light when an electrical current flows through them. They are being developed for applications in flat panel displays. A simple OLED consists of a fluorescent organic layer sandwiched between two metal electrodes. Under application of an electric field, electrons and holes are injected from the two electrodes into the organic layer, where they meet and recombine to produce light.
Polymers by such tongue twisting names as polythiopene (red), polyfluorene (blue) and polyphenylenvinylen (green) consist of aromatic benzene rings which are pearl strung via carbon double bonds. As in conventional light-emitting diodes, the benzene electrons are excited by an exterior voltage of 3 to 5 Volt. In returning to their original state they emit light in a colour specific to their material which is exceptionally brilliant and soft.
-- "The likes of Facebook and WhatsApp are free to those whose privacy is of zero value."
3-color or 4-color?
by
Smallpond
·
· Score: 4, Informative
The problem with LED displays is the reverse of the problem for printing. In printing its tough to get true black by combining cyan, magenta and yellow, so they do 4-color printing, CMYK (K for black).
With LEDs, they want to do RGBW (W for white) to get true whites, but the article doesn't say whether they're doing three or four colors. Here's an article on organic white LED:
In addition to red, green, and blue OLED materials, Kodak researchers have successfully formulated white-emitting materials. Using a dual emitting layer--each emitting in a complementary color--they have produced white OLEDs that yield not only an excellent white hue, but a good color stability over a wide range of light levels. The white hue is easily adjustable to any shade from pale yellow to light blue. The device life exceeds exceeds 20,000 hr (Figure 2).
Re:3-color or 4-color?
by
Ospeovedizer
·
· Score: 3, Informative
OK guys, this might be hard to follow, but try to stick with it:
White light does not exist. What we call "white" is just a color that seems to excite all your eye's receptors just about evenly. The fact that white light doesn't exist is the reason for the color "temperature" and "white points" you may have encountered if you calibrate your monitor.
In your post, you refer to a "true white" and I can assure you that there is no such thing. Our brains will actually filter any prevailing color out of what it sees and just call the result "white." If you've ever worn colored sunglasses you know that after a while, you just don't notice the color. Everything looks normal!
Our eyes, however, don't do the same to black. If light is coming off an object, then it's not black. This is why you need a K in CMYK: the C+M+Y just reflects far too much light to be called black.
This means that there is no need for a W in RGBW, since your eye will just accept any "white-ish" color to be "white" as long as it is present in enough of what you see.
I don't know if I explained myself clearly enough to make any sense, but I spent the past hour trying to get the wording right, and I'm not going to spend any more.
-- "We demand rigidly defined areas of doubt and uncertainty!" - Vroomfondel, H2G2
Just as moldy as the other organic compounds around your house, and in your computer, like the case of your existing monitor.
Organic != biodegradable, it means containing carbon, like a diamond, which is about as far from biodegradable as you can get.
OLED's are are made in polymer sheets rather than in individual chips of silicon. Ultimately this will make them cheap, rugged, rollable and producable in almost arbitrary sizes, like wallpaper.
I feel a Ray Bradbury story coming on.
KFG
Re:Will they be able to compete with lcd in 2 year
by
ekephart
·
· Score: 4, Informative
With the costs of energy constantly rising? Yes.
LCDs use about half the power as CRTs (Viewsonic). Sanyo and Kodak already have a 5.5 active matrix OLED that runs on 2 watts at 10 volts. While the 15 inch model would presumably use 9 times this, that's still close to half the power consumption of a similar LCD.
-- sig
Re:2 to 3 years off?
by
Powercntrl
·
· Score: 4, Informative
I've found that my "high-end" CRT, which costs LESS than even a basic LCD, displays much better, and is far more flexible.
More flexible, yes... I'll give you that. You can't beat a CRT for quick refresh rates needed for serious gaming and a good picture in any supported resolution.
What a flat panel LCD monitor lacks in resolutions, it makes up for in display consistency. There is no pincushioning, no color seperation problems, the picture fills the entire screen perfectly, a horizontal or vertical line of pixels is perfectly straight and there is absolutely no flicker. Once you get used to looking at an LCD on a regular basis, the flaws in CRTs really start to become more apparant. I'll admit they're not for everyone, but for mostly browsing the web, wordprocessing, cropping and resizing images and the infrequent game or two, you can't beat an LCD.
--
--- DRM is like antifreeze, to the MPAA/RIAA it's sweet, to the consumers it's poison.
Size and weight....
by
Spit_Fire1
·
· Score: 3, Informative
If this technology is as good as they say it is, this will do very well in the presentations and home theater markets if their price comes down(we know this isn't going to cost less than 900$ when it comes out) and they can support the sizes that plasma can. With their smaller size and weight it will be much easier to mount the televison to the wall and so digital picture frames and the like, however their increased price may stop that from happing in the next 15 years.
--
"The secret of success is to know something nobody else knows." -Aristotle Onassis
Re:Organic? Can you eat it?
by
PD
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· Score: 2, Informative
Arsenic is an element, and ammonia is NH3. Neither of them are organic. Organic molecules contain carbon. Better to say eating the screen would be like drinking gasoline or getting your mouth washed out with soap.
2 quarters thick
by
Craig+Davison
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· Score: 2, Informative
Somewhat OT, but are quarters really 0.7 mm thick, i.e. 36 to an inch? I don't think so. You'd be lucky to fit 15 if memory serves. (I don't have any American change other than pennies handy so I can't check) According to this, US quarters are pretty thick, at 1.75 mm: http://mathforum.org/elempow/solutions/solution.eh tml?puzzle=103 Sloppy reporting.
Organic != biodegradable, it means containing carbon, like a diamond
Organic does not mean containing carbon, and diamond and other puter-carbon compounts such as graphite or bucky balls are not organic. Organic means containing a hydrocarbon compount such as those found in oil, ie compounds with Hydrogen and Carbon (and also other elements).
The organic LEDs have kinks to be worked out before they can gain wide acceptance, he said. "Whether it's polymer, large-molecule or small-molecule
Fill-factor issues, which involve defects in which the surface area of a pixel is not completely covered with emissive material, can cause problems with display uniformity and crosstalk. Edge growth is a type of fill-factor defect. Single-pixel, and sometimes subpixel, defects are critical factors that determine display quality
will OLED replace LCD?
by
u19925
·
· Score: 5, Informative
If we had OLEDs in market, people would be inventing LCDs. Both have advantages and disadvantages and it is not clear, if OLEDs would be able to overcome all the disadvantages it has against LCD. Here are few of them:
1. Color accuracy: Each colored dot on the screen will be composite of three LEDs. If their relative light output changes over time, you get color distortion. With LCDs, the transpanrency of each individual pixel controls color. Since this is known to be stabel for a long time (even before color LCDs came, this was known), this is not a problem.
2. Active matrix. OLEDs may be as hard to manufacture or even more than active matrix LCD.
3. Each pixel in OLED takes more current than in LCD. This makes OLED pixels more likely to fail.
It seems, the biggest advantage would only be in power comsumption and hence in portable devices likes laptop, PDA, cell phones etc. For others like home computer LCD screen, LCD TV, home appliances screen and other display, LCD would continue to be used for a long time.
Re:Why does a 15" LCD TV cost 3x an LCD display?
by
Jace+of+Fuse!
·
· Score: 3, Informative
That depends on which side you're standing in front of. The viewing angle in even the best of LCDs still leaves much to be desired, even if they have become very impressive in the past couple of years.
As far as image quality is concerned, some of the best CRTs and LCDs side by side are indistinguishable, so after having come to that realization it then boils down to how much space you have, and how much energy do you want to save.
--
"Everything you know is wrong. (And stupid.)"
Moderation Totals: Wrong=2, Stupid=3, Total=5.
Re:What about the microbes' working conditions?
by
AJWM
·
· Score: 3, Informative
Interesting troll (or joke, whatever). But even if the organic LEDs were filled with bacteria (they're not), bacteria aren't animals.
They're not plants, either. Bacteria are a kingdom all their own, neither plant nor animal (nor fungus, nor archaea).
Besides, some bacteria like to be bombarded with radiation (see Deinococcus radiodurans, for example, also known as "Conan the Bacterium").
-- -- Alastair
Re:Will they be able to compete with lcd in 2 year
by
Transcendent
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· Score: 3, Informative
I think organic LCDs will take off after they get past the prototype stage. What the article forgot to mention is that this technology can be molded to clear displays in plastic casing that can bend easliy to mold lots of curves... leading the way for HUDs for your car, a TV in your sun glasses, or more likely military applications.
I'd give a link to a nice site and even news interview clip and video demonstrating the flexability and such for these displays.... but I forgot where I found it before:o\
Re:Why does a 15" LCD TV cost 3x an LCD display?
by
AJWM
·
· Score: 3, Informative
I can't say I know the reason for the price difference, but possible reasons are related to the different requirements of an NTSC video vs computer VGA (SVGA, etc) display:
different gamma curves
different persistence (you don't want ghosting on the TV)
wider viewing angle (without color change) for the TV
-- -- Alastair
Re:Why does a 15" LCD TV cost 3x an LCD display?
by
MSBob
·
· Score: 3, Informative
Err.. I beg to differ. Most LCD panels (the stand alone ones, not the laptop crap) have angles of around 170 degrees, horizontal and vertical. This is for all intents and purposes, as good as any CRT. If there is anything that can be complained about with modern LCDs it's the rise/fall time which may cause fast games to look blurred. I'm not a gamer so I don't care.
To me the quality of text on an LCD is so much better than a CRT there is no comparison. For the record I don't shop for low end displays: My old 19" Eizo CRT has just been replaced with a brand new Dell 2000FP and the difference in picture quality is absolutely astounding. The only snag is that for an LCD to shine it must be driven through the DVI input. For any LCD RGB~DVI==NIGHT~DAY
Have they solved the short lifespan of the organic light emitting compounds, particularly in the blues? I notice that the photo in the article didn't have a lot of rich, deep blue hues. Was that on purpose?
probably... they still seem to have a major problem with blue... according to kodak.
Slashdot Mirror
...at least it is on the way in a couple years.
That's kind of what they said last year.
pi = 3.141592653589793helpimtrappedinauniversefactory7
Better pictures, more info
- James
The article is pretty sparse about what OLED is... Dupont has a pretty cool page about their displays with some info that reminds me of my science text book back in high school.
I'll have something intelligent to add one of these days...
Semiconductor p-n junctions are the basis for LEDs and, when made into optical cavities, for diode lasers. Therefore, this may or may not yield increased resolutions, as anyone who's had a physics class or two could easily derive based on the known and accepted value of Planck's constant.
The radiative transitions in semiconductors could prove to interfere with the overall user experience, thus the intensity of light emission processes in direct band gap materials is several times lower in magnitude than in direct band gap semiconductors.
Bottom line -- don't buy one yet!
Department of Physics and Atmospheric Science, Dalhousie University, Halifax, N.S., Canada, B3H 3J5
means *plastic.* Polymers are organic compounds, which means containing carbon, as opposed the the silicon of traditional diodes.
I've also got his hot news flash for you, you're covered in bacteria already.
KFG
For anyone who doesn't know, OLED == Organic LED (Light Emitting Diode). Perhaps someone can ramble off the list of advantages they posses, though; I seem to have forgotten it.
--
Posted anonymously so as not to be a KW.
Yeah right, have a look at this this site
Organic light emitting diodes (OLEDs) are optoelectronic devices based on small molecules or polymers that emit light when an electrical current flows through them. They are being developed for applications in flat panel displays. A simple OLED consists of a fluorescent organic layer sandwiched between two metal electrodes. Under application of an electric field, electrons and holes are injected from the two electrodes into the organic layer, where they meet and recombine to produce light.
Or have a look here
Polymers by such tongue twisting names as polythiopene (red), polyfluorene (blue) and polyphenylenvinylen (green) consist of aromatic benzene rings which are pearl strung via carbon double bonds. As in conventional light-emitting diodes, the benzene electrons are excited by an exterior voltage of 3 to 5 Volt. In returning to their original state they emit light in a colour specific to their material which is exceptionally brilliant and soft.
"The likes of Facebook and WhatsApp are free to those whose privacy is of zero value."
The problem with LED displays is the reverse of the
problem for printing. In printing its tough to get
true black by combining cyan, magenta and yellow, so
they do 4-color printing, CMYK (K for black).
With LEDs, they want to do RGBW (W for white) to
get true whites, but the article doesn't say whether
they're doing three or four colors. Here's an
article on organic white LED:
Nature
Just as moldy as the other organic compounds around your house, and in your computer, like the case of your existing monitor.
Organic != biodegradable, it means containing carbon, like a diamond, which is about as far from biodegradable as you can get.
OLED's are are made in polymer sheets rather than in individual chips of silicon. Ultimately this will make them cheap, rugged, rollable and producable in almost arbitrary sizes, like wallpaper.
I feel a Ray Bradbury story coming on.
KFG
With the costs of energy constantly rising? Yes.
LCDs use about half the power as CRTs (Viewsonic). Sanyo and Kodak already have a 5.5 active matrix OLED that runs on 2 watts at 10 volts. While the 15 inch model would presumably use 9 times this, that's still close to half the power consumption of a similar LCD.
sig
I've found that my "high-end" CRT, which costs LESS than even a basic LCD, displays much better, and is far more flexible.
More flexible, yes... I'll give you that. You can't beat a CRT for quick refresh rates needed for serious gaming and a good picture in any supported resolution.
What a flat panel LCD monitor lacks in resolutions, it makes up for in display consistency. There is no pincushioning, no color seperation problems, the picture fills the entire screen perfectly, a horizontal or vertical line of pixels is perfectly straight and there is absolutely no flicker. Once you get used to looking at an LCD on a regular basis, the flaws in CRTs really start to become more apparant. I'll admit they're not for everyone, but for mostly browsing the web, wordprocessing, cropping and resizing images and the infrequent game or two, you can't beat an LCD.
---
DRM is like antifreeze, to the MPAA/RIAA it's sweet, to the consumers it's poison.
If this technology is as good as they say it is, this will do very well in the presentations and home theater markets if their price comes down(we know this isn't going to cost less than 900$ when it comes out) and they can support the sizes that plasma can. With their smaller size and weight it will be much easier to mount the televison to the wall and so digital picture frames and the like, however their increased price may stop that from happing in the next 15 years.
"The secret of success is to know something nobody else knows." -Aristotle Onassis
Arsenic is an element, and ammonia is NH3. Neither of them are organic. Organic molecules contain carbon. Better to say eating the screen would be like drinking gasoline or getting your mouth washed out with soap.
If tits were wings it'd be flying around.
Somewhat OT, but are quarters really 0.7 mm thick, i.e. 36 to an inch? I don't think so. You'd be lucky to fit 15 if memory serves.h tml?puzzle=103
(I don't have any American change other than pennies handy so I can't check)
According to this, US quarters are pretty thick, at 1.75 mm:
http://mathforum.org/elempow/solutions/solution.e
Sloppy reporting.
Hands in my pocket
here
Organic != biodegradable, it means containing carbon, like a diamond
Organic does not mean containing carbon, and diamond and other puter-carbon compounts such as graphite or bucky balls are not organic. Organic means containing a hydrocarbon compount such as those found in oil, ie compounds with Hydrogen and Carbon (and also other elements).
The rest of the comment I agree with ;)
-- John Linford
Good question. Last I read, these things could last for up to 7000 hours, figure 9 months for the typical Slashdot reader glued to the screen 24/7.
If they can manage semi-affordable, disposable panels that drop into a frame, this could be a scam as good as HP's injket business.
The organic LEDs have kinks to be worked out before they can gain wide acceptance, he said. "Whether it's polymer, large-molecule or small-molecule Fill-factor issues, which involve defects in which the surface area of a pixel is not completely covered with emissive material, can cause problems with display uniformity and crosstalk. Edge growth is a type of fill-factor defect. Single-pixel, and sometimes subpixel, defects are critical factors that determine display quality
1. Color accuracy: Each colored dot on the screen will be composite of three LEDs. If their relative light output changes over time, you get color distortion. With LCDs, the transpanrency of each individual pixel controls color. Since this is known to be stabel for a long time (even before color LCDs came, this was known), this is not a problem.
2. Active matrix. OLEDs may be as hard to manufacture or even more than active matrix LCD.
3. Each pixel in OLED takes more current than in LCD. This makes OLED pixels more likely to fail.
It seems, the biggest advantage would only be in power comsumption and hence in portable devices likes laptop, PDA, cell phones etc. For others like home computer LCD screen, LCD TV, home appliances screen and other display, LCD would continue to be used for a long time.
That depends on which side you're standing in front of. The viewing angle in even the best of LCDs still leaves much to be desired, even if they have become very impressive in the past couple of years.
As far as image quality is concerned, some of the best CRTs and LCDs side by side are indistinguishable, so after having come to that realization it then boils down to how much space you have, and how much energy do you want to save.
"Everything you know is wrong. (And stupid.)"
Moderation Totals: Wrong=2, Stupid=3, Total=5.
Interesting troll (or joke, whatever). But even if the organic LEDs were filled with bacteria (they're not), bacteria aren't animals.
They're not plants, either. Bacteria are a kingdom all their own, neither plant nor animal (nor fungus, nor archaea).
Besides, some bacteria like to be bombarded with radiation (see Deinococcus radiodurans, for example, also known as "Conan the Bacterium").
-- Alastair
I think organic LCDs will take off after they get past the prototype stage. What the article forgot to mention is that this technology can be molded to clear displays in plastic casing that can bend easliy to mold lots of curves... leading the way for HUDs for your car, a TV in your sun glasses, or more likely military applications.
:o\
I'd give a link to a nice site and even news interview clip and video demonstrating the flexability and such for these displays.... but I forgot where I found it before
-- Alastair
To me the quality of text on an LCD is so much better than a CRT there is no comparison. For the record I don't shop for low end displays: My old 19" Eizo CRT has just been replaced with a brand new Dell 2000FP and the difference in picture quality is absolutely astounding. The only snag is that for an LCD to shine it must be driven through the DVI input. For any LCD RGB~DVI==NIGHT~DAY
Your pizza just the way you ought to have it.
Blue is a harder color to generate.
Here's an article that describes some of the history and challenges of creating a semiconductor that emits blue light.
Karma
Have they solved the short lifespan of the organic light emitting compounds, particularly in the blues? I notice that the photo in the article didn't have a lot of rich, deep blue hues. Was that on purpose?
n t/technologyFeatures/display.shtml
probably... they still seem to have a major problem with blue... according to kodak.
http://www.kodak.com/US/en/corp/researchDevelopme
guns kill people like spoons make Rosie O'Donnell fat.
Whoever wants more information on OLED displays check out this site http://www.universaldisplay.com