| abstract |
A method of forming a viewing panel for a microwave oven includes a step of placing a film including a conductive coating in a mold, forming a substrate on the surface of the film having the conductive coating, and forming the viewing panel. Alternatively, the method may comprise the steps of injection molding the substrate and applying a conductive coating to the surface of the substrate after molding to form a viewing panel, wherein the substrate is selected from a transparent polymer or glass The conductive coating has an EMI shielding effect of more than 25 dB from 30 MHz to 3.0 GHz as determined by ASTM D4935, and the viewing panel has more than 50% of incident light having a frequency of 430 THz to 790 THz Of transmittance. |