Korean news site ETNews reports that Japanese makers (Sony and Panasonic, specifically) are negotiating OLED TV panel supply deals with LG Display. Both companies aim to develop picture quality improvement algorithms in house and aim to release the TVs by the end of 2014.
Sony and Panasonic halted their OLED TV joint development project in December 2013. While it was reported that both companies are still developing OLED TV technologies, it seems that if they want to enter the OLED TV market, they will have to buy the panels, and currently LG Display is the only maker with the capacity to actually supply such panels.