We have developed a negative dispersion retarder using self-organization of smectic reactive mesogen molecules. The dispersion of retardation of the film was studied with various constituent molecules structure, orientation, and fabrication conditions. The negative dispersion of retardation was promoted with more fraction of molecules located at the interlayer space absorbing longer wavelength of UV light.
"Negative dispersion retarder for the display compensation film", Proc. SPIE 10556, Advances in Display Technologies VIII, 1055609 (19 February 2018); doi: 10.1117/12.2291513; https://doi.org/10.1117/12.2291513