UBI Research says that the OLED market will actually decrease by 24% in 2014: from $8.8 billion in 2013 to $6.7 billion in 2014. But in 2015 the market will resume its fast growth and in 2017 the market will reach over $27 billion (up 61% from 2016). UBI also sees the market reaching over $75 billion in 2020.
UBI sees most of the growth coming from high-priced flexible OLEDs and of course OLED TVs (UBI sees 2017 as the year when the OLED TV market finally emerges). The negative growth in 2014 will be due to the general slowdown in the smartphone market.
In contrast to UBI, other analysts estimate the OLED market to be around $11 billion in 2013. I just posted that DisplaySearch sees the OLED market growing in 2014, which means an increase in panel revenue too.