Update: According to a UK magazine, Sony denies pulling out of the OLED TV market
In December 2013 Sony and Panasonic announced that they canceled their OLED TV joint-development effort. The two Japanese companies said they will continue to develop OLED technologies independently. Now the Japanese Nikkei Asian Review reports that Sony decided to halt their OLED TV development to focus on UHD LCDs.
According to the report, Sony does not see any real demand for OLED TVs any time soon. While they may be right in the very near term (1-2 years), this is a very risky decision because if OLED TVs do take off in 2015 or so as Sony will again be too late to the new TV technology (the same mistake they did with LCDs).According to some reports, Sony aims to enter the OLED TV market using LGD panels, a strategy that didn't quite work out for Sony with LCD panels a few years ago.
This is the second time that Sony quits the OLED TV market, by the way. Sony was the first company to release an OLED TV back in 2007 (with the 11" XEL-1, which wasn't really a TV and wasn't really a commercial product). In January 2012 Sony reportedly decided to abandon the OLED TV market. But only one month later, following management changes, the company decided to return to the OLED TV market. Sony later announced the collaboration with Panasonic (and with Taiwan's AU Optronics as well).
Panasonic's OLED TV plans aren't clear either. The company did show new curved OLED TV prototypes earlier in 2014, and back then some company officials claimed the company will release OLED TVs in 2014 for consumers. This is quite unlikely though. Panasonic did withdraw from the OLED lighting business in March 2014 and it wouldn't surprise me to see them back off from OLED TV development soon. Similarly to Sony, Panasonic is also reportedly in talks with LGD for OLED TV panels.