A patent infringement claim has been filed in a U.S. federal court in Los Angeles, California, claiming intellectual property infringement of six U.S. patents, which include a thin film transistor-liquid crystal display (TFT-LCD) technology patent that is owned by LG. Philips LCD, one of the world’s largest flat-panel display manufacturers. LG. Philips is a joint venture of Dutch consumer electronics company Philips Electronics and South Korea’s LG Electronics. The patent claim has been filed against Tatung of Taiwan and two entities, Tatung Company of America and Chunghwa Picture Tubes Company. LG. Philips alleges that it sent a cease and desist notice attempting to prohibit Tatung from selling LCD monitors with Chunghwa’s flat panels, which was ignored.