Sony Unveils World’s First 4K OLED TV

LAS VEGAS — Plenty of manufacturers have 4K (a.k.a. Ultra HD) TVs here at CES, and plenty also are showing large-size OLED panels. Only one company is combining the two technologies, however, and that’s Sony, who just unveiled the world’s first 4K OLED set. Big caveat: The TV is just a prototype …

Samsung sees record-high 4Q profit

SEOUL, South Korea—Samsung Electronics Co., the world’s largest technology company by revenue, expects record earnings for the fourth quarter of 2012 as shoppers continued to snap up its smartphones and tablets. The company said Tuesday its operating profit for the October-December quarter would …