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MIT Develops Quantum-Dot OLEDs
deglr6328 writes "Researchers at MIT have developed a new type of Organic Light emitting Diode (OLED) using Cadmium Selenium Quantum Dots as the electron-hole recombination layer. It is widely believed that the next generation of flexible flat panel display technologies will be self luminous (non-backlit) organic light emitting diodes. However, the efficiency and lifespan of both small molecule and polymer type OLEDs, to date, has been poor for small wavelength emitting compounds. Using quantum dots as the emissive layer in OLEDs potentially solves both of these problems since they are inorganic and won't degrade, and they have a theoretical maximum quantum efficiency of near 100%. Mmmmm ... can't wait to buy my first roll-up display!"
I thought this interesting technology would also have such first-generation products too...
I want glasses with a high resolution display. Perhaps even with seperate displays for each eye, for that nice 3D effect.
This would be so much better than big screen tv's. For one we could eventually have as big a screen as the largest movie theater.
I could also watch movies/tv in bed without keeping the missus awake with blinking lights.
They would need to cost about $150 a piece for them to break through. But then it would be the best thing since sliced bread.
Max M - IT's Mad Science
Common Research Cycle:
/.ers excepted), however, corporations that often have thousands of each computer or display pay much more attention to things like lifespan and disposal costs. If this product is to come to market as more than a niche player, it needs to have a good ROI and low TCO.
First figure out how to do it with exotic materials that exhibit the behaviour you want, once you understand how this works, find more mundane (and less toxic) materials to create the consumer product.
Many exotic materials have special behaviours that are great for research and creating devices that work in the lab environment but they often have drawbacks, not the least of which is their toxicity. These materials are also very expensive to produce, as well as dispose of, which will result in a consumer product that is too expensive for your average consumer.
Manufacturers and consumers now look at the entire cost of a product from the initial manufacturing cost or purchase price, right through to the cost of disposing of it. Individual consumers usually don't pay much attention to the latter since they usually have one of an item (most
ROI = Return on Investment
TCO = Total Cost of Ownership
"Computer Scientists can count to 1024 on their fingers" (non-mutant, non-mutilatated, human computer scientists)
E-Ink is working on color displays.
The pages aren't clear on how they try to achive
this. But I think they're using microcapsules filled
with C, M or Y colored liquid and also black and
white pigments with opposite electrostatic charges.
Actually, assuming your monitor's circuitry is of high enough quality, you want the refresh to be as high as possible. There have been several studies which demonstrated that while people could look at a CRT running at 85Hz and another at 120Hz and swear that they look identical, when asked to read text off the screens they could read faster off the display with higher refresh.
When your eyes are looking in one place refresh doesn't make a big difference, but when your eyes track from one location to another, the missing image between refreshes them down
I have a positive modifier on Troll. When I mod someone Troll their karma should go UP!
LCD TVs cost more, because of low production (1/10th of LCD monitor, 1/100th of Tube TV). The second part is that, you have to now miniatuarize the TV components too (monitor doesn't have to do, neither do tube TV). Expect to see the cost difference between LCD and tube TV to drop below 2:1 by next year as the volume ramps up.