What is OLED

Organic light emitting diodes (OLED) displays are thought as the “future screens”.

The Organic Light Emitting Diodes are receiving lot of attention all through the world as the new kind of display technology. The OLEDs have various advantages over the conventional display technologies. Firstly, fabrication process is very easy, and the devices are lighter and thinner than those that are fabricated by the Cathode Ray Tube display (CRT) technologies.

Secondly, there are even various advantages over the Liquid Crystal Displays (LCD): the OLEDS can be seen from various angles and they don’t require a backlight. And finally, the power consumption and drive voltage are very low. The 1st commercial OLED display has been introduced by the Pioneer Electronics as a front panel of the car stereo in the year 1997.

In order to enhance the brightness or color, the manufacturers could add a complex chain of molecules (called polymers) to the layers that are based on carbon. Unlike the LCDs, which need the backlighting, the OLED displays are very "emissive" devices, meaning that they emit the light instead of modulate reflected or transmitted light.

Thin organic layer serve the displays as the light source, which offers the significant benefits in relation to the conventional technologies:

• more brilliant and brighter picture
• unlimited number of viewing angles
• low consumption of power
• quick “response time”
• economic production

The prerequisites for this technology breakthrough in the market that is estimated to be costing over 2 billion USD in 2010, are the optimizations of specific critical performance of data such as the efficiency and lifetime. This needs innovations in the materials meaning that the chemistry will decide the success and the future of this OLED technology. The OLEDs - Organic Light-Emitting Diodes will be the light for the future

OLEDS advantages:
Better durability, greater brightness, low consumption of power, transparent or flexible displays and ultra-thin.

“The Low consumption of power is the reason why OLED is the better choice for the portable devices. It even makes the OLEDs, and the candidate to be a light "bulb" of the greater future brightness. Light sources that are based on the electroluminiscent organic materials provide the potential in order to make the high intensity light possible at the low consumption of energy on the substrates that are mechanically." said the project head Proffessor Dr. Karl Leo (IAPP).

• The screens are much brighter, and have the complete viewing angle.
• The better durability – the OLED-Displays could operate in the temperature range.
• The lighter weight - the screen could be made much thin, and can be ‘displayed’ on the flexible surfaces.

What this implies is that the OLEDs could be deployed in wide range of the electronic devices and can be utilized extensively throughout any device given. The Active display components can be the polymers, substrates can be the polymers, the logical electronics can be the polymers, and so on. In the upcoming years, the OLEDs shall see the applications in communications, billboards, signs, wide area general lighting, televisions, cell phones, personal computers, and any number of information appliances.