The objective of the invention is to provide an highly efficient polarizer
providing an improved brightness and color saturation of a LCI element
based on such polarizer.
This objective is to be attained by using, in manufacture of a polarizer
and a LCI element based on such polarizer, at least one birefringent
anisotropically absorbing layer having at least one refraction index that
grows as the polarized light wavelength increases, i.e. having the
abnormal dispersion.
The use of said layer allows to create polarizers of both the dichroic and
interference types. Further, the use of said layer allows to create a
polarizer that provides, in a relatively simple design, conversion of
practically all energy of a non-polarized radiation into the polarized
radiation.
The above-recited peculiarities of the claimed polarizer based on a
birefringent anisotropically absorbing layer having the abnormal
dispersion allow to create both a color and monochromic LCI element
distinguished for an higher brightness, color saturation, good angular
characteristics and absence of shadows.
