SUBSTRATE FOR FLEXIBLE DEVICES

• Main Authors: MASUDA, Hirohisa, NANBU, Kouji, SHIMOMURA, Hiroshi, MIYAZAKI, Toshihiko
• Format: Patent
• Language: English; French; Japanese
• Published: 19.03.2020
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GLASS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; JOINING GLASS TO GLASS OR OTHER MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MINERAL OR SLAG WOOL; PERFORMING OPERATIONS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING

The present invention relates to a substrate for flexible devices, which is characterized by having a stainless steel base material, an oxide film that is formed on the surface of the stainless steel base material, and a glass layer that is a layer of bismuth-based glass having electrical insulation properties, said layer being formed on the surface of the oxide film. A substrate for flexible devices according to the present invention is excellent in terms of rust prevention properties, moisture barrier properties, adhesion of the glass layer, bending resistance and the surface smoothness of the glass layer surface, while being easy in terms of production, quality control and the like. La présente invention concerne un substrat pour dispositifs flexibles, qui est caractérisé en ce qu'il comprend un matériau de base en acier inoxydable, un film d'oxyde qui est formé sur la surface du matériau de base en acier inoxydable, et une couche de verre qui est une couche de verre à base de bismuth ayant des propriétés d'isolation électrique, ladite couche étant formée sur la surface du film d'oxyde. Un substrat pour dispositifs flexibles selon la présente invention est excellent en termes de propriétés de prévention de la rouille, de propriétés de barrière à l'humidité, d'adhérence de la couche de verre, de résistance à la flexion et de lissé de surface de la couche de verre, tout en étant rendant facile la production, le contrôle de qualité et des opérations similaires. 本発明は、ステンレススチール基材と、該ステンレススチール基材の表面に形成された酸化物膜と、該酸化物膜の表面に電気絶縁性を有するビスマス系ガラスが層状に形成されたガラス層とを有することを特徴とするフレキシブルデバイス用基板に関するものである。本発明のフレキシブルデバイス用基板は、耐錆性、水分バリア性、ガラス層の密着性、曲げ耐性及びガラス層表面の表面平滑性に優れている共に、製造や品質管理等も容易である。