LG has announced the arrival of a glasses-free 3D monitor for the Korean market – the LG DX2500.The 25-inch monitor uses parallax barrier 3D technology, which is the same tech that's being utilised for the Nintendo 3DS, and has been given TÜV Rheinland certification – a first for a monitor.To track head movement, a camera has been embedded in the monitor which tracks movement in real time. Alongside this you also get 2D-to-3D conversion.Speaking about the glasses-free monitor, Si-hwan Park, Vice President of the Monitor Division at LG's Home Entertainment Company, said: "LG is taking glasses-free 3D monitors mainstream with the DX2500."With the DX2500, we are making the LG brand synonymous with glasses-free 3Dmonitors. In 2012, we'll continue to expand our range of glasses-free 3D monitorsfeaturing different designs and advanced functions."