Viewing angle performance of LCDs is a key issue which has been approached by both subjective and statistical means. In this paper, we discuss causes of image quality degradation as a function of grayscale at a fixed off‐axis viewing angle, examining both luminance and chromaticity distortions. Oblique viewing angle performance of both 1G‐2D and 2G‐1D S‐PVA panel structures have been enhanced by controlling the two independent sub‐pixel data for each of red, green and blue.