By Heekyong Yang SEOUL (Reuters) -Samsung Electronics said on Friday it has named its mobile chief TM Roh as a new co-CEO and head ​of its device experience division, which oversees the company's mobile phone, ‌TV and home appliance businesses. The appointment returns Samsung to its traditional co-CEO structure, which divides oversight of its ‌chip and consumer divisions, after the company had been operating under a sole-CEO setup following the sudden death of co-CEO Han Jong-Hee in March. Roh has been ...