A worker cleans a display at the Hisense Electric Co. Ltd. booth during the 2013 Consumer Electronics Show in Las Vegas, Nevada, U.S., on Tuesday, Jan. 8, 2013. The 2013 CES trade show, which runs until Jan. 11, is the world's largest annual innovation event that offers an array of entrepreneur focused exhibits, events and conference sessions for technology entrepreneurs. Photographer: Andrew Harrer/Bloomberg Photo: Andrew Harrer, Bloomberg / © 2013 Bloomberg Finance LP