Sony unveils 30-and 56-inch professional 4K OLED monitor prototypes, shipping in May

The 56-inch OLED TV Sony trotted out at CES may have lost an inch on its way to the market, but that extra few centimeters can still be had, at least in the professional sector. The company announced its A Series Trimaster EL monitors at NAB today, outing a 4,096 x 2,160 30-inch model as well as a 3,840 x 2160 56-inch display. Both panels boast of wide viewing angles and low color shift, promising accurate signal reproduction for industry professionals working with 4K content. No word yet on pri...