. . . . . . "Substrate 11 can be produced with any material having a good light transmittance, including but not limited to polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polycarbonates, polyethylenes, polypropylenes, polystyrenes, triacetyl cellulose, acrylic, polyvinyl chloride and other plastic films." . .