LG Display Co. Ltd. has announced its roadmap for developing and releasing large-size OLED panels in 2012.

LG Electronics Inc. plans to release a 15-inch OLED TV with a panel developed by LG Display at the end of 2009. The panel has a pixel count of 1,366 x 768 and a resolution of 105ppi. Its maximum screen luminance with an all-white signal and an all-black signal are 200cd/m2 and 0.01cd/m2, respectively. The peak luminance is 450cd/m2.

The panel is a bottom emission type and uses low-temperature polycrystal Si-TFTs that are crystallized by a high-temperature process (solid phase crystallization or SPC) as driver elements. Those specifications were announced at IMID 2009, a trade show that took place in October 2009 in Korea.

After the 15-inch panel, LG Display plans to release 20-inch and larger OLED panels in 2010, 30-inch and larger panels in 2011 and 40-inch and larger panels in 2012.

As for driver elements, LG Display will probably employ a TFT based on a low-temperature polycrystal silicon (and SPC method) or an oxide semiconductor such as IGZO (In-Ga-Zn-O).

As for oxide semiconductor, that it is one of the candidate materials to be used for large panels. But it has low reproducibility because of variation among lots.

LG Display plans to use fluorescent materials until 2011 and phosphorescent materials thereafter. Also, as film forming processes, the company is considering using printing technologies, starting from an evaporation method with a metal stencil mask.

With those measures, LG Display aims 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 and an equivalent yield in 2016.