Abstract: A method for forming a silica film on a face panel is disclosed. The method includes steps of preparing a first composite having a staring material of a silica-titania two component system where alcohol is added as a catalyst; preparing a second composite having a titaniumalkoxide or a derivative of the titaniumalkoxide as a catalyst; mixing the first and second composites at a predetermined ratio; agitating the face panel; and calcinating the coated colloidal solution at a temperature of 160-200.degree. C. The silica-titania two-component system is selected from a group consisting of a tetraethyl-silicate and a tetraethyl-silicate oligomer. The tetraethyl-silicate oligomer has a degree of polymerization of 40, 51 or 56.

Abstract: A method for forming a face film on a face panel includes the steps of applying electromagnetic wave-shielding solution on the face panel, calcining the face panel, and photoreducing the precursor metal ion contained in the electromagnetic wave-shielding film by radiating ultraviolet ray on the face panel for about 20-50 minutes. The precursor is selected from silver or gold. Preferably, the step of calcining is conducted at a temperature of about 160.degree.-200.degree. C. Further preferably, the ultraviolet ray is in the range of 1-50 mW/cm.sup.2.