Polarimetric analysis of cross-talk phenomena induced by the pixelation in PA-LCoS devices

•The finite pixel grid pattern influences Stokes parameters.•The performance of PA-LCoS tends to be higher as the fill factor is increased.•The out-of-plane LC director distribution is asymmetrically produced between pixels.•Fringing fields and diffraction influence on Stokes parameters are coupled.•The pixel size and the fill factor are relevant for evaluating PA-LCoS devices.