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Article | REF: R620 V1

Display. Visualization - OLED displays

Authors: Christophe FÉRY, Philippe LE ROY

Publication date: June 10, 2005

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1. Organic light-emitting diodes

An organic light-emitting diode (OLED) is a device consisting of one or more organic thin films (∼ 100 nm) inserted between two perpendicular electrodes (figure 1 ). Light is generated by passing electric current through the organic layers, over the area where the electrodes intersect.

1.1 Principle of organic electroluminescence

EL is the non-thermal emission of light generated by a solid through which an electric current flows [A...

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