| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for suitably providing an optical element with controlled molecular orientation, such as a retardation film or a polarization diffraction element, and a liquid crystal alignment film. <P>SOLUTION: The optical element with controlled molecular orientation, such as the retardation film or the polarization diffraction element is manufactured by a process including photoirradiation, heating and cooling of a photo-alignment material having photoreactive groups in side chains, which form a dimer through at least one hydrogen bond moiety. The liquid crystal alignment film and the method for manufacturing those are also provided. <P>COPYRIGHT: (C)2008,JPO&INPIT |
