Two Dundee University professors have been honoured for their work which led to the creation of digital flat screens.

A milestone plaque was unveiled to celebrate Professors Walter Spear and Peter LeComber at the university's Carnegie Building on Thursday.

Many experts believe their research and experiments in the 1970s and 1980s led directly to the world of flat screens and smartphones we live in today.

They developed new techniques with thin film amorphous silicon that were summarised in a breakthrough scientific paper in 1975.

This started a revolution in research by making inexpensive silicon based thin film electronic devices possible.

Dundee Univeristy School of Science and Engineering Deen Iain Stewart said: "The work of Spear and LeComber has had a profound impact on the world.

"The innovations they made included the creation of the amorphous silicon thin film transistor which led directly to the development of Liquid Crystal Display technology.

"This allowed the development of the technology which we use on a daily basis around the world in flat screen televisions and mobile devices.

"Theirs was some of the most impactful work produced at a UK university and this international recognition is well deserved."