A new design of a spherically molded liquid crystal cell intended for embedding in a contact lens is proposed. Wrinkle formation in these cells was investigated and a correlation was found between the total thickness of the cell and its smoothness. Smooth cells with minimal thickness were obtained by using an asymmetric configuration with a thin layer at the convex side and a thicker but threshold dependent layer at the concave side. Active liquid crystal cells filled with a guest-host liquid crystal mixture exhibited uniform light modulation along their surface, paving the way towards a modulation-based contact lens display.
© 2012 IEEE
J. De Smet, A. Avci, Roel Beernaert, Dieter Cuypers, and Herbert De Smet, "Design and Wrinkling Behavior of a Contact Lens With an Integrated Liquid Crystal Light Modulator," J. Display Technol. 8, 299-305 (2012)