Share Email Print
cover

Proceedings Paper

Photoanisotropic films: physics and applications in LCDs
Author(s): Vladimir G. Chigrinov; Vladimir M. Kozenkov
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Pure dye layers, dyes embedded into polymer matrix and pure photopolymer films (e.g. PVC- polyvinyl 4-methoxy-cinnamate) form the so called Photoanisotropic Films (PAFs), which undergo molecular and structural transformations under the action of the external polarized UV-illumination. The spectral sensitivity, spatial resolution, thermostability and reversibility of such processes strongly depend on the chemical nature of PAFs. Various applications of PAFs in LCD technology are envisaged such as: (1) the alignment of LC molecules without rubbing operation thus avoiding electrostatic charges and impurities; (2) possibility to make delicate structure of the preferred azimuth of LC director on the substrate to improve LCD viewing angles; (3) forming of phase retardation plates with local orientations of optical axes and optical path length varying from pixel to pixel; (4) implementation of B/W and color supertwist high information content displays based on birefringent colors; and (5) modification of the configuration of subtractive color supertwist cells for projection displays. The paper presents a brief introduction of physical phenomena in PAFs and its application in LCDs.

Paper Details

Date Published: 7 April 1995
PDF: 12 pages
Proc. SPIE 2407, Projection Displays, (7 April 1995); doi: 10.1117/12.205891
Show Author Affiliations
Vladimir G. Chigrinov, Organic Intermediates & Dyes Institute (Russia)
Vladimir M. Kozenkov, Organic Intermediates & Dyes Institute (Russia)


Published in SPIE Proceedings Vol. 2407:
Projection Displays
Ming Hsien Wu, Editor(s)

© SPIE. Terms of Use
Back to Top