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/* OLED Technology - An Overview */
==OLED Technology - An Overview==
'''OLED (Organic Light Emitting Diodes)''' is a flat display technology, made by placing a series of organic thin films between two conductors. When electrical current is applied, a bright light is emitted. OLED use organic semiconductor materials instead of inorganic semiconductor materials used in conventional Light Emitting Diodes (LED). Through a process called electrophosphorescence, organic light-emitting diodes, or OLEDS, produce light in the presence of an electric current. Like any other diode, OLEDs only permit an electric current to pass in one direction. Unlike diodes made from inorganic semiconductors, however, OLEDs are very flexible because they are only '''100 to 500 nanometers ''' thick, which is about '''200 times''' smaller than the thickness of a human hair. As a result, OLEDs are very flexible and can be made in very large sheets. They use less energy than LEDs as well.
The easiest way to understand '''OLEDs is to compare them to LCDs'''. LCDs are made by placing a color filter over a white backlight source – filtering out the colors that are not wanted for each pixel. If you want to display blue, you'll have to filter out green and red. OLEDs, on the other hand, are emissive – which means that you simply need to display the colors you need for each pixel – which is made from three color (RGB) OLED “pixels.”
[[Image:ADV-DIS.jpg|thumb|center|600px|[http://www.researchandmarkets.com/reports/662059/global_and_china_oled_market_report_2007_2012.pdf Source: MarketResearch.com]]]
==Cluster Analysis for TFT Display Mobile Phones==
