Sumitomo successful development of polymer light emitting diodes (PLED)
Sumitomo (sumitomo) Chemical Company developed a new durable material emitted blue light for polymer light emitting diodes (pled). And put into mass production in 2004 allegedly .pled materials can continue to use 10,000 hours. commercialize the production of highly viable while others pled manufacturers can only reach so far only a few thousand hours of life. In addition .pled production process than the low molecular weight organic led to simple and therefore can reduce production costs. the new material pled -ethenobenzo and the fluorine-based compound and a different structure from other manufacturers developed. this pled material properties are the diverging color close to pure blue.