Authorities around the globe are investigating possible anticompetitive conduct in the flat-panel industry.

On Friday, officials from the Korean Fair Trade Commission visited LG Philips' offices in Seoul as part of an investigation into possible anticompetitive behaviour, LG Philips said today.

In addition, the Japanese Fair Trade Commission issued a notice to LG Philips' offices in Tokyo and the US Department of Justice (DOJ) issued a subpoena to LG Philips' offices in San Jose, California, the company said.

It’s not immediately known if other LCD companies had also been targeted.

While this is the first indication of an investigation into the LCD market, authorities around the globe are already investigating chip markets for possible anticompetitive behaviour, including price fixing, and some companies have been fined.

The DOJ recently subpoenaed AMD as part of an investigation into the processor market. It has fined companies for price-fixing in the DRAM (Dynamic RAM) market, and is also currently investigating similar issues in the SRAM (Static RAM) sector.

LG Philips, a joint venture of LG Electronics and Philips Electronics, is one of the largest makers of LCD screens. It competes with Samsung and Sony, among others.