The rough-and-tumble economics of the display business claimed another victim today, as Fujitsu announced that it will exit the market in March. We hadn't seen a lot from the company's Aviamo line of plasmas since they first debuted in 2006, and it looks like there's a reason -- according to the short press release issued by Fujitsu today, "the pricing and profitability of this segment has compressed beyond the point which our company could realize a satisfactory return on investment." Hmmm, that explains why it spun off Shinoda Plasma a while back, no? Fujitsu says it will continue to sell displays in Japan and provide service and support t