May 31, 2017, Utsunomiya, Japan - Japan's electronics giant Panasonic employees assemble circuit boards of Panasonic's new Organic Light Emitting Diode (OLED) television sets &quot;Viera&quot; at the Panasonic Manufacturing Innovation Center in Utsunomiya , 100km north of Tokyo on Wednesday, May 31, 2017. Panasonic will start to sell 55-inch and 65-inch sized 4K OLED TV series from next month.   (Photo by Yoshio Tsunoda/AFLO) LwX -ytd-