Dell has announced plans to change all of its new laptop displays to light-emitting diode - LED - in the next 12 months, a move that the company says will be a "major achievement in its commitment to become the ‘greenest’ technology company on the planet".

"Our customers have made it clear that they want the greenest technology possible", Jeff Clarke, senior vice president, Dell Product Group said.

"As an industry, we can shape the future of green innovation and significantly reduce the carbon footprint associated with mobile computing. Dell is committed to leading the transition to energy-efficient LED technology."

From December two-thirds of Dell Latitude E-Family laptops will be shipped with mercury-free LED back lighting as a standard feature as will some Dell Precision mobile workstations.

Dell estimates that at least 80% of its total laptop volume will be delivered with LED as a standard back-lit display by the end of 2009 and 100% in 2010.