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Sony Begins OLED Mass Production
Dodger73 writes "According to their press release at sony.net, Sony beings mass production of full color OLED displays at 3.8" size for their Clie PEG-VZ90 'Personal Entertainment Handheld.' The press release claims, that their 'Super Top Emission' technology reaches 150cd/m^2; at the familiar 1000:1 contrast ratio.
Not quite the 19" display I'd like for my computer at home, but definitely a step in the right direction."
OLED = Organic Light-Emitting Diode
Its not the size that matters, its how you use it... I will be very happy to have my 3.8"
#include sig.h
So now we have Organic LED's and Organic speakers.... perhaps one day we will have an organic computer! :-)
As OLED works with self-luminous organic materials, it has outstanding response time, without producing any afterimage even when displaying moving images (movies). Also with wide viewing angle and contrast ratio as high as 1000:1, high quality images can be realized on mobile products which are used in various occasions.
As the saying goes, mother nature knows best. With all our technical skills, nature can produce a better light emitting substance than we can!
This is super sexy, I cannot wait until I have a paper thin wall sized display...
Good work sony.
#hostfile 0.0.0.0 primidi.com 0.0.0.0 www.primidi.com 0.0.0.0 radio.weblogs.com
Just don't use any anti-bacterial soap before handling it! ::swish::
Opto Tech introduces 1.5-inch OLED panel for handsets
"The company said that the panel has the highest resolution among all current OLED panels"
Perhaps OLEDs will lead to 300dpi displays, or at least 160dpi. ~72 just don't cut it.
#hostfile 0.0.0.0 primidi.com 0.0.0.0 www.primidi.com 0.0.0.0 radio.weblogs.com
The story did not say anything on power consumption for the Sony OLEDs. I would hope, since PDA/Cell battery life is fairly low right now, that this OLED consumes far less than its backlit counterpart.
Otherwise, the sharper contrast/light quality is nice, but no thank you.
One step closer to everything we've been promised the past few years. You want a roll-up screen to go with your fold-up keyboard? This is the technology line that will make it happen. Window curtains that can change color, table-tops that are skinnable...think of it.
Now if we can only get the price down enough to make such trivial applications a reality.
should be quite a bit lower than lcds. The diods are far less efficient than the lcd backlights, BUT:
-You dont need polarizers and color filters (those absorb >2/3 of the light in a lcd)
-Dark pixels are just not powered/lower powered (if the typical brightness level is low, this is another factor of 2-4).
So the organic leds only need 10% of the effience of normal ones to break even, which should be very archiveable.
HI O WISE PRINCE. WHT TOOK U SO DAM LONG?
Has any progress been made regarding the life of these displays? Last I heard, the longest these things would last was about a year or two before going too dim to be useful.
Unless Sony is figuring that the early adopters will be people who tend to buy new PDA's quite frequently anyway, and will therefore be willing to get rid of this one once the next generation comes out the following year...
Must be 5 years ago now for a project I was working on way back then, I got hold of a 12.1 inch 800 x 600 native Sharp industrial grade TFT (for those of you not in the know indusrial grade are the pick of the yield) which the had the standard sharp backlight, which was about 300 cd/m2 even way back then, removed and replaced with one from an american company called Landmark Technology which meant it was 1500 candela and true daylight readable even in direct sunlight... the screen was driven by an expensive (I forget the make for the moment) graphics engine which took the input RGB and converted it to the TFT native electronics signal format.
The image quality was absolutely astonishing, even blew away things like my current 21 inch sony 520, white WAS absolutely white, the most minute details such as the - - - - - - effects you get around selected dialogue buttons in windows were absolutely pin sharp, and when showing images such as some of the nature type pictures included in xp as default desktop backgrounds the effect can only be described as feeling like you were looking at a high quality photographic transparency backlit by a professional grade light-box.
The horizontal and vertical viewing angles were also pretty dramatic, with a very wide range over which brightness and contrast didn't appear to vary, response was also more than enough for multimedia playback.
So that was 5 years ago.
I haven't seen anything since that was actually better quality, except today I could get an 18 inch 1600 x 1200 panel, so these "new" ideas are cool and all, but I think their unique selling points must be anything other than true image quality, it must be something like very low power consumption, very much more robust, or perhaps extended operational temperature range.
Until one of those uses applies to me I'm quite happy to use the tft built into my dell laptop, but for desktop work it has to be CRT, for everything else such as the digital camera then the tft screens in built are no more use than thumbnail browaing in MHO.
http://slashdot.org/~GuyFawkes/journal
NO real progress has been made in that area. The color failure rate is still pretty high. the typical failure is a pixel getting 'stuck' in the on or off position. Being that the display is more expensive to make than other available technologies, they probably won't be replaceable and will make the units, escentially, throw aways or disposables.
See my other comment for details and supporting links.
I'd like to know at what temperatures those thing still work... They'd come in handy as GPS screens in cars. But cars usually get very cold/hot during the seasons.
Hey, if they came in the right size I'd put them in my KARR (yes the one from Knight Rider) once it's finished.
Seriously- I know. I calibrate them.
Of course you need a good probe to know read the CRT- and that means something like the SLS9400, which retailed around 5K at last recall. And you can't ever shut the monitor off, it has to be on ALL the time.
And of course you need a specialized interface for Windows, because windows simply chokes on anything other than 8 bit. Certain cards, like the Dome boards (10 bit BW) are great. Others actually have internal 10 bit ramdacs but don't allow driver access to them. Such a pity.
The underlying subsystem is broken for windows which will limit everyone to 8 bits for years to come.
Never mind that CRT manufactures are calling daily to say they're discontinuing this model, that model... sigh.
(and you need 8 bit to 10 bit internal to avoid banding/quantitizaiton errors after calibrating...)
I work at a company that develops medical imaging display systems. To make displays uniform and produce correct grayscale images for viewing xrays, etc., there are some strict standards for "gamma" calibrating monitors, referred to as DICOM.
I was at the last SID convention, talking to one of the experts on this stuff from IBM, and I ignorantly commented on how I was looking forward to OLED displays because of the contrast ratio. He explained to me that OLED displays suffer from burn-in worse than any CRT.
Until the recent past, the lifetime of OLED displays has been measured in months. Apparently, what happens is that for each pixel, the junction between the electrodes and the organic diode decays over time (relative to the amount of charge that has gone through it), increasing resistance. At first, this just dims the LED, until the resistance gets so high that you can't meet threshold voltage for the diode, and it stops working entirely.
As I'm sure you can imagine, medical displays can't afford to have any non-uniformity. But given that medical images are non-uniform by nature, non-uniform burn-in will occur, making the xray or MRI image look different, depending on its placement on the screen. The point is that I'm sure you won't appreciate having your monitor suffer non-uniform burn-in, even IF what you're displaying can't affect someone's health.
(The advantage with LCD's is that the liquid crystal doesn't decay, and the only things that do break down are the fluorescent back-lights, and that decay is relatively uniform.)
As I'm sure is the case with everyone else, I look forward to the day when OLED decay is practically non-existant. The problem is that the progress is incredibly slow. LCD's been around for a LONG time, yet it's still far from perfect. OLED will require just as much time to get as good, which means it'll be decades before it catches up. Meanwhile, LCD's will continue to get better.