Abstract: The invention relates to an electrooptical system according to the preamble of claim 1, where the angle &psgr;, which the polarization device forms on the input side with the directors of the liquid-crystal molecules on the 1st substrate surface, is optimized in order to achieve high contrast and/or high brightness and/or high viewing angle independence and/or the color values.

Abstract: An electrooptical system contains: (a) a twisted nematic liquid-crystal layer, with an input side and an output side, which is positioned between a first substrate and a second substrate, each of whose inside surface is provided with an electrode coating and an alignment layer thereon, the director of said liquid crystal layer having a parallel edge alignment and a twist angle of 0°≦&bgr;≦1000, (b) at least one compensation layer for compensating the optical path difference of the liquid-crystal layer d·&Dgr;n, and (c) at least one device for linear polarization of light in such an arrangement that light, before entering and after exiting the liquid-crystal layer, passes through a polarization device, I.