PROCESS FOR PRODUCING A LIQUID CRYSTAL FILM AND LAMINATE FILM FOR OPTICAL DEVICE

摘要

An LC film manufacturing method and a laminate film for an optical device are provided to prevent a problem in interlayer adhesion force without generating an external appearance fault such as a crack in an LC alignment layer even during a strict environment test such as a heat shock test. In an LC(Liquid Crystal) material layer, LC alignment formed on an alignment substrate is fixed. The LC material layer is adhered to a releasable substrate by the medium of an adhesive 1. By releasing the alignment substrate, the LC material layer is transferred to the releasable substrate. The LC material layer is adhered to a temporary substrate by the medium of an adhesive 2. Therefore, a laminated body comprising the releasable substrate/adhesive layer 1/LC material layer/adhesive layer 2/temporary substrate is obtained through the above first process. In a second process, the releasable substrate is released from the laminated body. In a third process, an LC film comprising an adhesive layer1/LC material layer is obtained by releasing the LC material layer from the adhesive layer 2.