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Electro‐chemical activity in liquid crystal on silicon microdisplays
Author(s) -
Cuypers Dieter,
De Smet Herbert,
De Smet Jelle,
Joshi Pankaj,
Shang Xiaobing,
Van Calster André
Publication year - 2014
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.255
Subject(s) - materials science , voltage , electrode , liquid crystal , liquid crystal on silicon , optoelectronics , silicon , crystal (programming language) , computer science , chemistry , electrical engineering , engineering , programming language
In reflective liquid crystal devices that have an asymmetric electrode structure, an internal cell voltage is often present that interferes with the proper functioning of the device. Contrary to transmissive devices, this internal voltage cannot be attributed solely to ionic charges in the liquid crystal. On the basis of extensive measurements, an electro‐chemical model is developed and validated, providing a complete explanation for the generation and the dynamic behavior of the internal voltage in asymmetric liquid crystal devices. A possible solution for eliminating the occurrence of the internal voltage is also provided.