LEDs & OLEDs
As the basis for creating ambient atmospheres, LEDs
(Light-Emitting Diodes) are intriguing. But they are also
attracting attention for an entirely different reason:
What’s kept LEDs out of mainstream lighting applications for
the past 40 years is the fact that they were not very
bright. However, in recent years this has rapidly changed.
They can now compete head-on with compact fluorescent and
halogen lamps in many instances.
By changing the relative intensity of LEDs, you can create
virtually any color imaginable, swinging the color from one
end of the spectrum to the other at will. That’s why highly
efficient LED lighting is so attractive to architects and
While chip LEDs are the ideal solution for applications
where you want directed light, such as spotlights, OLEDs
(Organic Light-Emitting Diodes) promise the other extreme –
entire walls that gently and evenly glow with light or even
OLED-coated windows that illuminate rooms with simulated
daylight when it gets dark.
Like ordinary LEDs, OLEDs rely on the same electron/hole
phenomenon that occurs in semiconductor materials, yet this
time the semiconductor material is not a brittle crystalline
inorganic material. It’s an organic substance that can be
deposited onto surfaces, theoretically any size or shape,
using vacuum-deposition techniques. One day, it may even be
possible to produce OLED panels using a roll-to-roll
printing process not unlike that used to produce wallpaper.
Just image it – wallpapering your home with light.