A Japanese manufacturer of LCD screens has agreed to plead guilty and to pay a $26 million criminal fine for its role in a conspiracy to fix prices in the sale of electronics to Motorola, marking the latest corporate defendant to settle with the Justice Department in a long-running antitrust investigation.

Electronics manufacturer Epson Imaging Devices Corp., a subsidiary of Seiko Epson Corp., participated in a conspiracy in 2005 and in 2006 to fix prices of panels that Motorola used in “Razr” cell phones, according to Justice officials. A one-count felony charge was filed Tuesday in the U.S. District Court for the Northern District of California.