Universal Display Corporation announced its results for the fourth quarter and year ended Dec. 31, 2012. For the full year of 2012, the company reported revenues of $83.2 million, up 36% compared to revenues of $61.3 million for 2011. Operating income rose to $13.7 million for the year, up 141% from $5.7 million in 2011. The company reported net income of $9.7 million, or $0.21 per diluted share, for the full year of 2012, compared to net income of $3.2 million, or $0.07 per diluted share, f...