tolongin gan....:) Title : Highly efficient large-sized LED display with improved ergonomics Author : Yuri Trofimov, Valery Posedko,Vladimir Sivenkov, Igor Mironenko,Sergey Lishik* Article first published online: 18 JUN 2012 DOI: 10.1889/1.1811438 http://onlinelibrary.wiley.com/doi/10.1889/1.1811...
