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Towards a polarized light‐emitting backlight: micro‐structured anisotropic layers
Author(s) -
Blom S. M. P.,
Huck H. P. M.,
Cornelissen H. J.,
Greiner H.
Publication year - 2002
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.1827869
Subject(s) - backlight , optics , liquid crystal display , polarization (electrochemistry) , birefringence , light guide , materials science , anisotropy , optoelectronics , physics , light source , chemistry
— A backlight for liquid‐crystal‐display illumination is presented, in which s‐polarized light is preferentially coupled out by micro‐optical structures in a birefringent layer. In the experiments, contrasts higher than 15 have been obtained. A polarization dependent ray‐tracing model has been developed. Important guidelines for finding an optimal backlight configuration have been derived from the calculations.