David Dunmur | Britannica

David Dunmur

Contributor

LOCATION: Southampton, United Kingdom

BIOGRAPHY

Professor of Chemistry at the University of Southampton, United Kingdom. Editor of Liquid Crystals Today.

Primary Contributions (1)

Liquid crystal arrangementsIn nematic arrangements the crystals are randomly positioned with all their long axes pointing in essentially the same direction, given by a vector known as the director. In smectic arrangements the crystals are further constrained to parallel planes; in smectic A the director is perpendicular to these planes, while in smectic C the director is at some other angle to the planes.

liquid crystal display

Liquid crystal display (LCD), electronic display device that operates by applying a varying electric voltage to a layer of liquid crystal, thereby inducing changes in its optical properties. LCDs are commonly used for portable electronic games, as viewfinders for digital cameras and camcorders, in…