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Organic Lightning
All about white OLED light

Why do fireflies glow?

In warm summer nights you can see them: Small fluorescent insects known as fireflies or glowworms. But, how is this illumination or "glow" produced?

All about Organic light at this INFO podcast

Date: 09.05.2007 - Duration: 2:45 - Size: 2,52 MB

White OLEDs emit white light that is brighter, more uniform and more energy efficient than that emitted by fluorescent lights. White OLEDs also have the true-color qualities of incandescent lighting. Because OLEDs can be made in large sheets, they can replace fluorescent lights that are currently used in homes and buildings. Their use could potentially reduce energy costs for lighting. In the next section, find out about the pros and cons of OLED
technology and how it compares to regular LED and LCD technology.

The challenge in this area is to make organic LEDs (OLEDs) that can compete with existing light sources in efficiency, stability, colour quality and operation lifetime. Ching-Fong Shu of the National Chiao Tung University, Hsinchu, and colleagues have now created a white light OLED that fulfils several of these prerequisites. They combined a blue-emitting polymer with a green-emitting polymer and a red emitter to produce their promising device.

LEDs are devices which convert electricity to light. Current passing through the device generates an excited state, which then decays to the ground state emitting a photon. Because of the increased efficiency of LEDs over conventional light sources such as incandescent light bulbs there is a potential for huge energy savings. LEDs that use organic polymers to emit the light are of particular interest because they are expected to be cheap to produce.

Konica Minolta Holdings, Inc., Konica Minolta Technology Center, Inc. and the General Electric Company announced that they have signed a strategic alliance agreement in March 2007 to accelerate the development and commercialization of OLED (Organic Light Emitting Diode) devices for lighting applications. The goal is to bring OLED lighting to market within the next 3 years.

The goal is to bring OLED lighting to market within the next 3 years.

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