Professor Helfrich is the 1976 winner of the Hewlett-Packard Europhysics Prize which is awarded annually for outstanding achievement in solid state physics.The award which is to be presented at the opening of the 19th.Congress Ampère in Heidelberg on 27 Sept., 1976 is for his contributions to the physics of liquid crystals, leading also to the discovery of the twisted nematic display and to a better understanding of certain biological phenomena.
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W. Helfrich (1976) studied this question.