Photoalignment of Liquid Crystalline Materials / Wiley Series in Display Technology (PDF)

Photoalignment possesses significant advantages in comparison with
the usual 'rubbing' treatment of the substrates of
liquid crystal display (LCD) cells as it is a non-contact method
with a high resolution. A new technique recently pioneered by the
authors of this book, namely the photo-induced diffusion
reorientation of azodyes, does not involve any photochemical or
structural transformations of the molecules. This results in
photoaligning films which are robust and possess good aligning
properties making them particularly suitable for the new generation
of liquid crystal devices.

Photoalignment of Liquid Crystalline Materials covers
state-of-the-art techniques and key applications, as well as the
authors' own diffusion model for photoalignment. The
book aims to stimulate new research and development in the field of
liquid crystalline photoalignment and in so doing, enable the
technology to be used in large scale LCD production.

Key features:

* Provides a full examination of the mechanisms of
photoalignment.

* Examines the properties of liquid crystals during
photoalignment, with particular reference made to the effect on
their chemical structure and stability.

* Considers the most useful photosensitive materials and
preparation procedures suitable for liquid crystalline
photoalignment.

* Presents several methods for photoalignment of liquid
crystals.

* Compares various applications of photoalignment technology for
in-cell patterned polarizers and phase retarders, transflective and
micro displays, security and other liquid crystal devices.

Through its interdisciplinary approach, this book is aimed at a
wide range of practising electrical engineers, optical engineers,
display technologists, materials scientists, physicists and
chemists working on the development of liquid crystal devices. It
will also appeal to researchers and graduate students taking
courses on liquid crystals or display technologies.

The Society for Information Display (SID) is an international
society, which has the aim of encouraging the development of all
aspects of the field of information display. Complementary to the
aims of the society, the Wiley-SID series is intended to explain
the latest developments in information display technology at a
professional level. The broad scope of the series addresses all
facets of information displays from technical aspects through
systems and prototypes to standards and ergonomics