An adapter for connecting a hose to a hose receptacle of an object in a locking relationship. The body has a prism shape with a substantially planar upper surface which can bear against the superior vertebral endplate and a substantially planar lower surface which can bear against the inferior vertebral endplate. In the process, molding the resin material and the phosphor integrally into a shape is performed, after kneading a phosphor that converts one color light to another color light into the resin material. On account of this treatment, the level density at the interface between the gate-insulating layer and the channel layer can be made lower, and a thin-film transistor having less variations of characteristics can be formed on the unannealed glass substrate.