According to an fairly negative OLED TV review by DisplaySearch, the first commercial OLED TV, the SONY XEL-1, does not seem to have the lifespan claimed by Sony. In addition, several other characteristics do not outperform either LCD or plasma TV models currently available.
From EETimes.com;
It turns out that the RGB architecture is very sensitive to the image, and it has a 5,000-hour lifetime for white and a 17,000-hour lifetime for the typical video image–well below the Sony’s published specifications, according to the report.
Moreover the panel suffers from differential aging: After 1,000 hours the blue luminance degraded by 12 percent, the red by 7 percent and the green by 8 percent, said the report. (more…)