According to LG's OLED sales and marketing VP Won Kim, eighth-generation substrates will require LG to develop equipment that can handle a temperature of over 700 degrees Celsius. The company says oxide semiconductor is one of the candidate materials to be used for large panels, but it has a low reproducibility because of variations among lots. It was also made known that fluorescent materials will be used until 2011, followed by phosphorescent materials.
LG hopes to achieve a 50% higher material cost and a 30% lower yield than those of LCD panels in 2012, and a 20-30% lower material cost with an equivalent yield in 2016 -- meaning that 40" OLED displays may be cheaper than their LCD counterparts in 7 years.
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