Organic LED Displays (OLEDs)
by on 04.13.05
Organic LEDs? Yes, they have made it to market in several devices now. OLEDs use a carbon-based designer molecule that emits light when an electric current passes through it. Conveniently, OLED displays can be produced in the same way an ink jet printer sprays ink onto a sheet of paper, making manufacturing cheap and simple.
OLEDs can be printed onto flexible plastic. Sheets of them can be easily produced, opening new possibilities for product designers, from displays that roll up to ones that are woven onto clothing.
OLED do not need a backlight because they are self-luminous, so they are more energy efficient. Laptops with OLEDs would not require as heavy a battery.
The main benefit of new OLED screens is the bright, clear images they produce. OLED screens refresh faster, so they're better at displaying video.
:: More information: PC World
[by Justin Thomas]
The brightness of an OLED is determined by how much power you supply to the system. Only small monochrome OLED screens are more energy efficient than standard LCD screens because they only have to light up 1 pixel, if you add multiple colors you have to light up several pixels and it uses more power again. Also, the resolution of current OLED screens is much smaller than an LCD screen. The flexible display promise has been out there for many years now. However the problem is the seal for the OLED chemistry. Basically this seal has to be airtight, currently there are no materials available that are flexible and do not permeate some air. Thats why glass is currently used as the sealing material. Air quickly degrades the chemistry. Current flexibel displays have a lifespan of days, not even weeks. There is off course a lot of positive marketing babble around.
But are they Vegan friendly? I have never been able to get a clear answer.
Thanks for the userful comment, Casper.
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