A display device comprises a substrate having a layer of crystalline or polycrystalline semiconductor material disposed over the substrate, wherein the substrate has a strain point that is lower than a forming temperature of the layer. An electrode device arranged in the air stream is associated with the separating surface and connected to the other pole of the high voltage source. More particularly, transmit and receive antennas are oriented to provide for cross-polarization of their electro-magnetic fields, are oriented to allow one or both antenna to fall within null regions of the other antenna, andor oriented with both cross-polarization and null region considerations in mind. The process and the resulting product are characterized in that no formaldehyde of formaldehydic compounds are used in the treatment compositions or the film, and a formaldehyde scavenger is included in at least one of the treatment compositions.