Sunday, October 14, 2007

What is OLED?

OLED means Organic light emitting diode and is emerging as a leading next-generation technology for electronic displays and lighting. OLED can be used as display technology or as light source.

One of the great benefits of an OLED display over the traditional LCD displays is that OLEDs do not require a backlight to function. This means that they draw far less power and, when powered from a battery, can operate longer on the same charge. It is also known that OLED-based display devices can be more effectively manufactured than liquid-crystal and plasma displays. However, degradation of OLED materials have limited the use of these materials.

An organic light-emitting diode (OLED) is a special type of light-emitting diode (LED) in which the emissive layer comprises a thin-film of certain organic compounds. The emissive electroluminescent layer can include a polymeric substance that allows the deposition of very suitable organic compounds, for example, in rows and columns on a flat carrier by using a simple "printing" method to create a matrix of pixels which can emit different colored light. Such systems can be used in television screens, computer displays, portable system screens, advertising and information, and indication applications etc. OLEDs can also be used in light sources for general space illumination.

Why is OLED a next generation display technology?

Vibrant colors
High contrast
Excellent grayscale
Full-motion video
Wide viewing angles from all directions
A wide range of pixel sizes
Low power consumption
Low operating voltages
Wide operating temperature range
Long operating lifetime
A thin and lightweight form factor
Cost-effective manufacturability

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