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Progress toward a liquid crystal contact lens display
Author(s) -
De Smet Jelle,
Avci Aykut,
Joshi Pankaj,
Schaubroeck David,
Cuypers Dieter,
De Smet Herbert
Publication year - 2013
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1002/jsid.188
Subject(s) - materials science , pedot:pss , fabrication , layer (electronics) , liquid crystal display , optoelectronics , liquid crystal , lens (geology) , electrical conductor , modulation (music) , optics , nanotechnology , composite material , medicine , philosophy , alternative medicine , physics , pathology , aesthetics
A contact lens embeddable display using electro‐optic modulation was designed and fabricated. Using a guest–host liquid crystal configuration, a spherically deformed liquid crystal cell was fabricated comprising poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT : PSS) as a conductive layer and obliquely evaporated SiO 2 as an alignment layer. An additional SiO 2 buffer layer was evaporated on top of the PEDOT : PSS to overcome compatibility problems with the patterning of the photolithographically defined spacers. Although the contrast is modest, a patterned modulation could clearly be observed, indicating that our approach and fabrication process could eventually lead to a fully pixelated contact lens display.