Nokia has sued Samsung, LG Displays and other liquid display manufacturers, accusing them of conspiring to inflate prices for displays.
The suit comes a month after AT&T made the same allegations against LCD manufacturers, according to a Bloomberg report.
The lawsuit, filed 25 November in San Francisco, is based on federal and state antitrust claims. Nokia is seeking unspecified damages, as well as an injunction that would bring a halt to the alleged collusion.
Both the AT&T and Nokia suits cite an investigation of display panel price-fixing by the US Justice Department. In March, Hitachi Displays, a unit of Hitachi, became the fourth company to plead guilty in the inquiry. Hitachi is one of the defendants named in the Nokia suit but not AT&T's, according to Bloomberg.
For more on this story, see Nokia sues Samsung, LG over LCD price fixing on CNET News.