A company statement said the US District Court jury in San Francisco ordered the fine "due to alleged antitrust practices in the LCD business."
But it added that "given credits for settlements by other defendants, Toshiba expects that it will not have to pay any damages as a result of this verdict, even after trebling under US antitrust laws."
The case stems from a class action suit filed in 2007 by purchasers of LCD panels and related products in the United States.
"Toshiba has consistently maintained that there was no illegal activity on its part in the LCD business in the United States, and Toshiba continues to hold that view," the statement said.
Toshiba added that it "believes that the jury's verdict is in error as to the finding of wrongdoing on Toshiba's part. Toshiba plans to pursue all available legal avenues to correct that finding."
Several other companies have been charged in the case, and Taiwan's AU Optronics was among those found guilty.
LCD screens are used in computers, laptops, televisions, smartphones and other gadgets.
Rival LCD makers met in secret in karaoke bars, tea rooms, and hotel conference rooms in Taiwan to set prices rather than letting market forces prevail, according to US officials.
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