Yet another funding has joined the recent flood of interest in LEDs, with a Watertown, Mass. company taking an undisclosed amount for a “quantum dot” technology that can be applied to LED manufacturing, according to Xconomy.

QD Vision is using nanotechnology licensed from the Massachusetts Institute of Technology to boost efficiency, while simultaneously improving the color range the lights can emit when used in video displays. It hasn’t yet released a product.

The provider of the funding was In-Q-Tel, the venture investing division of the CIA. The amount was not disclosed, but QD told Xconomy its total funding from government sources was up to $5 million. The company previously raised a $7 million second round from Highland Capital Partners and North Bridge Venture Partners.