Download Alignment technologies and applications of liquid crystal by Kohki Takatoh PDF

By Kohki Takatoh

Show description

Read or Download Alignment technologies and applications of liquid crystal devices PDF

Similar solid-state physics books

The Kondo problem to heavy fermions

This booklet bargains with the techniques and methods which were built to fulfill this problem and with their software to the translation of test. the writer surveys intimately the many-body recommendations, scaling, renormalization crew, Fermi liquid and Bethe ansatz, which result in an answer of the Kondo challenge for many of the theoretical types.

From order to chaos II : essays, critical, chaotic, and otherwise

This booklet is a compilation of the evaluation papers, expositions and a few of the technical works of Leo Kadanoff, a theoretical physicist. the target is to place jointly a bunch of not-too-technical writing within which he discusses a few matters in condensed topic physics, hydrodynamics, utilized arithmetic and nationwide coverage.

Bibliography of Magnetic Materials and Tabulation of Magnetic Transition Temperatures

This referenced compilation of magnetic transition temperatures represents (with the Addendum) papers really bought via the RMIC via could 1972 and comprises lists (alphabetical by way of compounds), one for Curie and one for Neel temperatures. the place various values seemed within the literature for a unmarried compound, all are indexed with sepa­ cost references given for every.

Additional resources for Alignment technologies and applications of liquid crystal devices

Sample text

Studied the surface structure by using an X-ray scattering technique [39]. For surface structure measurements, they used grazing-incidence X-ray scattering (GIXS), which is based on a critical angle that exists because the refractive index of the X-rays is lower than one. The X-rays which interact with the surface at the critical angle become evanescent radiation and pass through a surface depth less than 5 nm. The Rubbing Technologies: Mechanisms and Applications Without rubbing 19 α = 0° θ = 0° Before injection of LC After injection of LC (a) Rubbing direction Rubbed surface Main chain Before injection of LC LC α θ After injection of LC (b) Fig.

The relationship between the LC pretilt angle and the surface structure of BPDA-Cn and PMDA-Cn polyimide was studied by using the NEXAFS technique [46]. The BPDA type polyimide shows an odd^even effect. However, PMDA type polyimide does not show such an odd^even effect. The chain length dependence of the LC pretilt angle for BPDA and PMDA types of polyimide is shown in Fig. 13. The conformation of PMDA-C8 is determined as a cis-transoid type. As for PMDA-C7, a trans-cisoid type conformation of the polymer chain is a possible structure on the substrate surface.

32 Masaki Hasegawa (a) Fibre of rubbing material Polymer film (b) Principle axis of stress (c) (d) Fig. 25 (a) Cross sectional view of a polymer film in contact with a moving fibre of buffing material. (b) Magnified view of the film under shearing forces, showing the principle axes of stress. (c) Effect of large shear deformation, similar to that which would be produced by simple elongation parallel to the substrate. (d) Modified version of large shear deformation, taking into account a possible proximity effect exerted by the substrate surface on the polymer.

Download PDF sample

Rated 4.08 of 5 – based on 27 votes