Hewlett-Packard Co ended a lawsuit in which it accused Chunghwa Picture Tubes Ltd (中華映管) and Tatung Co (大同) of America Inc of fixing the prices of LCD screens.
In a filing on Thursday to the US District Court of the Northern District of California in San Francisco, the three companies agreed to the dismissal of the case filed last year.
The filing did not explain why Hewlett-Packard was dropping its claims against the Taiwanese companies.
Hewlett-Packard had alleged that it incurred more than US$1 billion in damages from overcharges for the screens that it purchased through its Singapore unit and a Taiwan-based procurement service.
In the suit, Hewlett-Packard claimed that Chunghwa, Tatung and other LCD makers conspired to set prices and restrict output for panels from 1998 to 2006.
Michael Thacker, a spokesman for Palo Alto, California-based Hewlett-Packard, and David Brownstein, a lawyer representing Chunghwa and Tatung, did not immediately respond to telephone messages seeking comment on the filing.