At CES 2013, Panasonic has exhibited a 56-inch 4k OLED display. The company applied its own printing process to the display and cooperated with Sony in the development of the display's oxide semiconductor.
Panasonic President Kazuhiro Tsuga stressed the large size, vivid color and slimness of the display in a keynote speech, however, the company has not disclosed when to mass-produce the display or its expected price.
Source:
http://www.ledinside.com/news/2013/1/panasonic_oled_display_20130114
