Light Emitting Diodes Full Color

Progress has been made in the search for new lanthanide /3-diketonates as sources of luminescence, with application in the fabrication of polymer light-emitting diodes for low-cost, full-color, flat-panel displays.16,17 Moreover, some complexes seem promising as chiral NMR reagents for the determination of enantiomeric purity18,19 and prospective catalysts in many organic syntheses.20... 

Kim JS, Jeon PE, Choi JC, Park HL, Mho SI, Kim GC (2004) Warm-white-light emitting diode utilizing a single-phase full-color Ba3MgSi208 Eu, Mn " phosphor. Appl Phys Lett 84 2931-2933... 

Sato Y, Takahachi N, Sato S (1996) Full-color llutttescent display devices using a near-UV light-emitting diode. Jpn J Appl Phys 35 L838... 

Other materials used in electronic devices are also formed under stricdy controlled environmental conditions. Computers could not function without some of these materials, especially indium tin oxide (ITO) for what are called transparent contacts and indium nitride for light-emitting diodes in a full spectrum range of colors. 

GAT 07] Gather M.C., Koehnen A., Falcou A. et al, Solution-processed full-color polymer organic light-emitting diode displays fabricated by direct... 

In both the active matrix display panel using the fast response liquid crystal and the three-primary-color light-emitting diode backlight, full-color display operation is achieved by a field sequential color driving method. 

Dow has done considerable research on color tuning and studying the lifetimes of PF-based PLEDs. In a recent review [6], they note that in a ITO/PEDOT PSS/light-emitting polymer/Ca/Ag or A1 device, green PLEDs have an efficiency of 7.6 Im/W. The red devices can obtain 1.4 Im/W and the blue 1.3 Im/W, all at 200 Cd/m. The lifetime of the blue device was, however, only 1500 h. The lifetime of blue-emitting diodes is one of the major hurdles faced in the commercialization of full color PLED displays, which require tens of thousands of hours. 

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