LG Electronics Inc. will showcase organic light-emitting diode (OLED) TVs and its first quantum dot TV at the 2015 Consumer Electronics Show (CES) kicking off Tuesday (U.S. time) in Las Vegas, as it pushes ahead with the two TV models as the next growth engine. The 55-inch model will be unveiled as LG's 2015 OLED TV, the company said, following the global debut of larger-sized 65 and 77-inch models in August last year.