Apple is Samsung's largest buyer of components, accounting for 8.8 percent of Samsung’s revenue. The two firms are also bitter enemies when it comes to litigation as they remain entangled in a complicated web of more than 20 lawsuits spanning continents.

As if that weren't bad enough, now comes the definite confirmation that the Galaxy maker pledged to spend $112 million to buy a three percent stake in Sharp, which has been struggling to stay afloat amid losses and low manufacturing yields.

The investment, a strategic move on the part of the South Korean conglomerate, is meant to give Samsung a steady supply of LCD panels from diversified sources. Apple, too, was rumored to have spent to the tune of $2 billion to prevent Sharp from going under.

Additionally, the iPhone maker is thought to have tried to save the Japanese giant through its preferred contract manufacturer Foxconn, which last year wanted to buy eleven percent of Sharp. The deadline for that transaction closes later this month, but the deal may have already hit the wall after Sharp's share price tumbled...