It seems that the level price of LCD screens doesn't compare favorably to the ever cheaper plasma television.  That means big sales for plasmas, which are up year-to-year in every quarter of 2010.

One thing that doesn't seem to have had much of an effect on growth is the addition of 3D.  "While 3D has not played a big role in the growth of plasma shipments," says Ken Park of DisplaySearch, "it has helped to support plasma TV in the competition with LCD TV."

According to a recent DisplaySearch analysis, plasma growth appears to be limited by supply.