LG argues that Sony PS3s infringe a number of its patents relating to playback of Blu-ray Discs. Earlier this month, LG has lodged a patent infringement complaint against Sony with the US International Trade Commission , asking the ITC to exclude the PlayStation 3 video game console from entry into the US market.
LG claims that Sony has infringed LG patents related to the reproduction of of Blu-ray Discs. LG also simultaneously filed another complaint against Sony over its Bravia television sets.
At the same day, LG also filed another complaint against Sony with the US District Court of the Southern District of California.
Last December, Sony had also filed a suit with the organisation, seeking an import ban of LG smartphones.
If Sony is found to have infringed LG patents, it could be forced to compensate the South Korean manufacturer for each PS3 it has sold around the world.