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Status and dreams of photonics polymer for IT
Author(s) -
Koike Yasuhiro,
Ishigure Takaaki,
Tagaya Akihiro
Publication year - 2003
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200351118
Subject(s) - backlight , materials science , polymer , birefringence , optics , core (optical fiber) , brightness , optical fiber , dopant , composite material , optoelectronics , liquid crystal display , doping , physics
Abstract We have proposed a low‐loss, high‐bandwidth and large‐core graded‐index plastic optical fiber (GI POF) in data‐corn, area. The GI POF enables us to eliminate the “modal noise” problem which is observed in medium‐core silica fibers. Therefore, stable high‐speed data transmission can be realized by the GI POF rather than medium‐core silica fibers. Furthermore, advent of perfluorinated (PF) polymer based GI POF network can support higher transmission than silica fibers network because of the small material dispersion of PF polymer compared with silica. In addition, we proposed a “highly scattering optical transmission (HSOT) polymer” and applied it to a light guide plate of a liquid crystal display backlight. The HSOT polymer backlight that was designed using the HSOT designing simulator demonstrated twice the brightness of the conventional taransparent backlight with sufficient color uniformity. Furthermore, we proposed the two types of zero‐birefringence polymers synthesized by the random copolymerization method and the anisotropic molecule dopant method. Both of the polymers exhibited no orientational birefringence for any orientation of polymer chains.