| 摘要 |
PURPOSE:To prevent an intrusion of foam into a liquid crystal layer by providing a high-polymer resin layer having a specific value or below of oxygen permeability and a specific value or above of the peeling strength to a non-optically rotatory film or sheet to the surface of the non-optically rotatory film or sheet and using such film or sheet as a substrate. CONSTITUTION:The gas-transmission-resistant high-polymer resin layer consisting of an acrylonitrile/methacrylate copolymer (50-98mol% acrylonitrile) having <=30cc/24hr.m<2>.atm oxygen permeability, <=100mmu retardation value and >=50g/ 25mm. peeling strength to the non-optically rotatory film or sheet 3 is provided on one or both surfaces of the film or sheet 3 to form the composite substrate having >=60% visible ray transmissivity. Such substrate is used as an electrode substrate for a liquid crystal display panel. A transparent film 2 is formed on the surface of such substrate sheet 3 directly or via a resin 4 or an anchor agent layer 6. The intrusion of gaseous O2 into the liquid crystal layer is thus prevented and the durability is improved. |
