text: The Esprit Arena in DÃ 1\/4 sseldorf was announced by German broadcaster NDR as venue for the 2011 Eurovision Song Contest on 12 October 2010 .
simplified: On 12 October 2010 , the German broadcaster , Norddeutscher Rundfunk ( NDR ) announced that the Esprit Arena of DÃ 1\/4 sseldorf as the venue of the Eurovision Song Contest 2011 .