Premium
V‐shaped electro‐optical mode based on deformed‐helix ferroelectric liquid crystal with subwavelength pitch
Author(s) -
Pozhidaev Eugene,
Chigrinov Vladimir,
Murauski Anatoli,
Molkin Vadim,
Tao Du,
Kwok HoiSing
Publication year - 2012
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 - 10.1889/jsid20.5.273
Subject(s) - liquid crystal , ferroelectricity , materials science , optics , electric field , helix (gastropod) , waveform , contrast ratio , broadband , liquid crystal display , optoelectronics , voltage , physics , dielectric , ecology , quantum mechanics , snail , biology
Abstract— V‐shaped electro‐optical response is shown, both theoretically and experimentally, to be an inherent property of a deformed‐helix ferroelectric liquid‐crystal cell (DHFLC) under a special choice of the applied rectangular alternating‐electric‐field waveform, frequency, and cell geometry. In contrast to other known V‐shaped ferroelectric liquid‐crystal (FLC) modes, the discovered V‐shaped switching is observed in a broadband frequency range including 1 kHz, and not at a certain characteristic frequency. This type of V‐shaped switching allows for a drastic increase in the operating frequency of field‐sequential‐color (FSC) LCD cells in comparison with fast nematic liquid‐crystal (NLC) modes.