OLED-Displays | Technical Introz

OLED-Displays

                                         

 Abbreviation for organic light-emitting diode, a display device in which a carbon-based film is placed between two charged electrodes. One of the two charged electrodes is a metal cathode and the other is a transparent (usually glass) anode. Transport layer, emission layer and electron transport layer. When a voltage is applied to the OLED unit, the injected positive and negative charges recombine in the light-emitting layer and generate electroluminescence. Unlike LCD's that require backlighting, OLEDs emit devices: they emit light instead of modulating transmitted or reflected light. OLED technology was invented by Eastman Kodak in the early 1980s. It is beginning to replace LCD technology in portable devices such as PDAs and mobile phones because it is brighter, thinner, faster, lighter, lower power consumption, higher contrast, and lower manufacturing costs than LCD's. An important step in the evolution process begins with the use of organic membrane layers. The first thin film electroluminescence device uses a single organic layer sandwiched between two injection electrodes. OLED is the newest and most popular word in display technology. Imagine a TV screen as thin as cardboard to foresee its potential. Now imagine that no matter where you are, you can put away the TV, store the TV or take it with you. You will automatically begin to understand why millions or even billions of dollars are invested in OLED research every year.