Mitsubishi Electric Corp. said Sunday that a bad software update might have caused up to 1.62 million of its liquid crystal display TVs across Japan to repeatedly turn on and off every few minutes.

The problem, which began at midnight Saturday and involved 118 models in its Real brand produced since 2010, was fixed Sunday evening after the company changed the data transmission sent to update the TV sets.

The LCD TVs manufactured by Mitsubishi Electric are used by many corporate customers, including hotels and hospitals.