Patent ID: 8284357

Claim:
A retardation plate comprising: a substrate; a solidified liquid crystal layer which is a continuous film made of a same material supported by the substrate, and has biaxial optical anisotropy, the solidified liquid crystal layer comprising a plurality of regions, the plurality of regions being arranged on the substrate and being different in in-plane retardation and thickness direction retardation, a number of the regions in the solidified liquid crystal layer being 3 or more, and the in-plane retardation of the solidified liquid crystal layer being the smallest in the first region and the greatest in the third region, and the Nz coefficient of the solidified liquid crystal layer being the greatest in the first region and the smallest in the third region; and a color filter layer which is interposed between the substrate and the solidified liquid crystal layer, or faces the substrate with the solidified liquid crystal layer interposed therebetween, the color filter layer comprising first to third coloring layers having different absorption spectra and facing the first to third regions, respectively, a wavelength of light transmissible through the color filter layer being the shortest in the first coloring layer, and the longest in the third coloring layer.