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28 August 2006 Thin coatable birefringent film
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We developed coatable retarders for visible range of light. The Thin Birefringent Film (TBF) retarders are based on the newly developed family of water-soluble salts of aromatic polycyclic compounds, which absorb light in the ultra violet region of light spectra. TBF retarders are produced by coating and subsequent drying of an aqueous formulation on plastic or glass surface, thereby transforming the liquid coating material into molecularly oriented crystalline or amorphous nano-film. The TBF retarders are transparent in the whole visible spectral region and exhibit dichroic polarization characteristics in the UV region. We have produced films with thicknesses in the range of 100 nm to 1100 nm. Obtained TBF exhibit the negative A-plate birefringence characterized by Δn = ne - n0 = - 0.35 at 550nm. The thin form factor and the ability to coat on a variety of substrates give coatable retarders a great degree of design flexibility and advantages in LCD related applications. LCD applications of TBF retarders are also discussed.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Pavel I. Lazarev, Andrew A. Manko, Sergey V. Remizov, Sergey P. Palto, and Alexander P. Lazarev "Thin coatable birefringent film", Proc. SPIE 6286, Advances in Thin-Film Coatings for Optical Applications III, 62860A (28 August 2006);


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