The steps of forming a panel includes a first step of forming a pattern-forming material layer having a predetermined pattern (bus-electrode material layer and BS material layer) on a substrate through an injection coating method such as an ink-jet method and a dispenser method, a second step of forming a dielectric-layer forming material layer in such a manner as to cover the pattern-forming material layer formed at the first step; and a third step of simultaneously calcining the pattern-forming material layer and the dielectric-layer forming material layer.