Surface rheology of rubbed polyimide film in liquid crystal display
نویسندگان
چکیده
منابع مشابه
Four-Domain Twisted Nematic Liquid Crystal Display Fabricated by Reverse Rubbed Polyimide Process
we proposed a particularly simple four-domain ͑4-D͒ twisted nematic͑TN͒ liquid crystal display͑LCD͒ device, which is composed of two left-handed and two right-handed TN subpixels. The two members of each pair of same handedness subpixels are rotated 180° with respect to each other, resulting in four domains that spatially average one another optically to provide a wide angle of viewing with no gray s...
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We developed a new method for characterizing molecular distribution in very thin liquid crystal layer (5–40 nm) evaporated onto rubbed polyimide film used by grazing-incidence X-ray diffraction (GIXD). The diffraction peaks corresponding to intermolecular correlation perpendicular to longitudinal axis of liquid crystal molecule and the clear anisotropic distribution of liquid crystal molecules ...
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Amide and imide based polymers are a catalogue of versatile materials that have a wide range of applications from scientific interests to commercial products because of their great thermal stability, excellent electric properties, highly mechanical strength, and superior chemical resistance (Sroog, 1976). In a thin film form, polyimides have been found to have many important uses in optoelectro...
متن کاملOptical Second Harmonic Generation Study of a Rubbed Polyimide Film Containing Steroidal Structure Side Chains
We have studied the optical second harmonic generation (SHG) of a rubbed novel polyimide (PI) film having steroidal structure side chains prepared by spin coating on an indium tin oxide (ITO)-coated glass substrate. The second order nonlinear susceptibility χ (2) ijk elements were obtained from the fitting of the SHG data. The symmetry of the polymer chains roughly belonged to Cs symmetry with ...
متن کاملZenithal alignment of liquid crystal on homeotropic polyimide film irradiated by ion beam
We investigate the pretilt characteristics of a nematic liquid crystal [LC] in terms of ion beam exposure conditions on the homeotropic polyimide alignment layer. The pretilt angle of LCs in the case of high-energy ion beam treatment was decreased considerably almost the same to that of the homogenous alignment layer though we used homeotropic polyimide film at first. Increasing irradiating ene...
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ژورنال
عنوان ژورنال: Optical Materials Express
سال: 2014
ISSN: 2159-3930
DOI: 10.1364/ome.4.001057