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, opticalengineers,
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.
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