Liquid crystal display with barrier layer to reduce permeability

A transparent substrate for a liquid crystal display panel, comprising a transparent synthetic resin film selected from the group consisting of polyester resin, cellulose resin, polyether sulfone resin, polysulfone resin, acrylic resin, polyethylene terephthalate resin, phenoxy resin, urethane resin, phenoxy-urethane resin, polyether-ketone resin, polyether-ether-ketone resin, polyetherimide resin, epoxy resin, polyimide resin, polyamide resin, polyimideamide resin, polycarbonate resin, a mixture of the above resins, and a multi-layer of the above resins and having a thickness between about 0.3 and 0.5 mm having transparent electrodes on one surface thereof and a transparent barrier coating layer selected from the group consisting of polyvinylidene chloride, polyvinyl alcohol, polyacrylonitrile, polyvinyl butyral, a mixture of polyvinyl alcohol and acrylic resin, a mixture of polyvinyl butyral and epoxy resin, SiO.sub.2, and a material containing at least phosphoric acid and iron and having a thickness between about 5 and 50.mu. disposed on the surface of the synthetic resin film for reducing permeability to at least one of air and water vapor.

A liquid crystal display device comprising at least one liquid crystal display panel including two spaced apart transparent substrates, each substrate having transparent electrodes selectively formed on the interior opposed surfaces thereof, at least one of the transparent substrates being formed of a synthetic resin selected from the group consisting of polyester resin, cellulose resin, polyether sulfone resin, polysulfone resin, acrylic resin, polyethylene terephthalate resin, phenoxy resin, urethane resin, phenoxy-urethane resin, polyether-ketone resin, polyether-ether-ketone resin, polyetherimide resin, epoxy resin, polyimide resin, polyamide resin, polyimideamide resin, polycarbonate resin, a mixture of the above resins, and a multilayer of the above resins and having a thickness between about 0.3 to 0.5 mm and a barrier coating layer selected from the group consisting of polyvinyl alcohol, polyacrylonitrile, a mixture of polyvinyl alcohol and acrylic resin, a mixture of polyvinyl butyral and epoxy resin, polyvinylidene chloride, polyvinyl butyral, silicon dioxide and a material containing at least phosphoric acid and iron, and having a thickness between about 5 to 50.mu. disposed thereon for reducing permeability to at least one of air and water vapor.

A liquid crystal display panel comprising two spaced apart transparent substrates, at least one of the transparent substrates being formed of a synthetic resin having a thickness between about 0.3 and 0.5 mm and both of the transparent substrates having transparent electrodes selectively formed on the interior opposed surfaces thereof and at least one barrier coating layer having a thickness between about 5 and 50.mu. disposed on the external surface of at least the synthetic resin substrate for reducing permeability to at least one of air and water vapor.

A liquid crystal display panel comprising two spaced apart transparent substrates at least one of the transparent substrates being formed of a synthetic resin selected from the group consisting of phenoxy resin and phenoxy-urethane resin and having a thickness between about 0.3 and 0.5 mm and both of the transparent substrates having transparent electrodes selectively formed on the interior opposed surfaces thereof and at least one barrier coating layer having a thickness between about 5 and 50.mu. disposed on the external surface of at least the synthetic resin substrate for reducing permeability to at least one of air and water vapor.