30 Apr 2014 / Trilux /

OLED - The revolution of illumination?!

The diodes consist of several different layers of materials – each of them has to fulfil a specific task: starting with the carrier material, nowadays most of the time glass, in select cases also metal, all the way to the encapsulating cover glass, ten different layers are nothing unusual.

Among them are, in part, transparent electrode materials, electron-transporting materials, and the actual organic emitter materials in which light is generated. The individual materials are applied in very thin layers – some a few nanometres thin – in large areas on the carrier substrate (for instance pre-treated sheets of glass). This way, an evenly luminescent series of layers is created in which each individual emitter layer can luminescence.

For the manufacturing, either small molecules or polymer materials are utilised. At present, small molecules are being used predominantly. In comparison to polymer materials, small molecule OLEDs last longer and are more efficient. OLEDs generate light  in the visible range exclusively.

Depending on the combination of the individual layers, they emit monochrome light, i.e., light of a single colour, or white light that consists of several light colours. In this, warm-white and cold-white colour tones are possible. The light emitted is radiated by the OLEDs diffuse, homogenous, and almost Lambertian, meaning it is radiated evenly in all directions, in a single direction (in case of intransparent OLEDs) or in two directions (in case of transparent OLEDs).

top
Leave your comment
No comments yet.
Lighting Directory
Videos
Flexible OLED light panel

Upcoming Events

Sep
11
BIEL Light + Building Buenos Aires
BIEL Light + Building Buenos Aires is the most important international event for the electric, electronic and lighting industry of Latin America. Currently, it is consider a leader in the Spanish-speaking sector.
Nov
13
LED Expo Benelux
Lighting is everywhere people are, 14 billion lamps worldwide. LED lighting is changing this world in a revolutionary way by offering cost-effective, better and controllable lighting. But the second LED revolution is coming. LED products will not resemble incandescent lamps, instead of accessorizing spaces, they’ll be integrated within them.
Mar
08
Light and Building
Manufacturers from over 55 countries – including all market leaders with their latest products for the fields of lighting, electrical engineering, house and building automation and civil-engineering software – are represented at Light + Building. Only at the world’s leading trade fair for architecture and technology will you encounter more than 216,000 visitors from all over the world with the necessary decision-making competence.

New manufacturers

Partners
Premium Fairs Partners