The South Korean police searched the offices of Samsung Display as part of the investigation into alleged large-sized OLED TV technology theft from LG Display. Investigators went to SDC's headquarters in Asan and searched related documents.
Samsung and LG have been fighting over OLED (and other technologies) patents for over a year. A few weeks ago the companies agreed to resolve their OLED dispute outside of the court of law and SDC's CEO even said the two companies are considering cross-licensing patents - but the OLED issues between the two Korean giants obviously isn't over.
Source: Business Week