Fabrication of Liquid Crystal Cell with Phase Separated Composite Organic Film

For liquid crystal displays, it is an ideal that the birefringence of liquid crystal medium does not vary in whole visible light region. Although the wavelength dispersion of the birefringence can be made small by utilizing an optical phase difference film, the precise control is needed for attachment of the film. In this study, in order to realize the phase-separated composite organic film (PSCOF) structure for the fabrication technology of liquid crystal display without external attachment of the film, we research in detail the fabrication condition of PSCOF liquid crystal cell. In this research, we used lots of alignment film and UV curable monomer materials. As a result, it is found that the most important factor for the realization of a uniform PSCOF structure is the wettability of liquid crystal materials to the alignment film and monomer materials to ITO surface.