a Department of Physics, State Joint Key Laboratory for Materials Modification by Laser, Ion and Electron Beams, Fudan University, Shanghai 200433, China; b National Laboratory of Molecular and Biomolecular Electronic, Southeast University, Nanjing 210018, China
Abstract The stripe-shaped domain (SSD) structure was prepared in the initial ferroelectric liquid crystal (FLC) alignment without the application of an external electric field, which was realized by the aligning layer modification through the doping of tin tetra-2, 4-dimethyl phenoxy phthalocyanine (SnPc) into the rubbed polyimide films. Atomic force microscopy was used to investigate the alignment films and the corresponding aligning ability was evaluated through the pre-tilt angle measurement. The memory capability and the contrast ratio of thus aligned SSFLC cells have been enhanced and improved with the appearance of the SSD structure. The electrically controlled 64×64 FLC spatial light modulator was fabricated using the improved ligning method, which proves valuable for the practical device fabrication.
Received: 24 November 1998
Revised: 24 March 1999
Accepted manuscript online:
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