For investors to double their money in six years or less, an investment needs to go up at a 12.2% compound annual rate or better. And there are certainly stocks out there capable of rising at this pace. After all, this is only a little better than the 10% average annual return for the S 500.

In my view, Universal Display (NASDAQ: OLED), Dollar General (NYSE: DG), and United Rentals (NYSE: URI) are three stocks that could double investors' money within six years. And as a cherry on top, all three pay a growing dividend.

When it comes to technology for organic light-emitting diodes (OLED), Universal Display is the top dog, holding over 6,000 patents worldwide. The company makes its money from licensing the tech and supplying the materials needed for manufacturing. And there's every reason to believe that we're on the cusp of an impressive OLED adoption cycle.

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Source Fool.com