We have studied commercialization and process optimization of protective film on transparent conductive coated substrate, nano silver on flexible PET (poly ethylene terephthalate), by means of roll-to-roll micro-gravure coater. Nanosilver on flexible PET substrate is potential materials to replace ITO (indium tin oxide). Protective film is most important to maintain unique silver pattern on top of transparent PET. PSA pressure sensitive adhesives) was developed solely for nano silver on PET and protective film was successfully laminated. We have optimized all process conditions such as coating thickness, line speed and aging time & temperature via experimental design. Transparent conductive film and its protective film developed in this research are commercially available at this moment.

The object of this paper is to develop optimal optical filter, which can be used to identify thefinancial account and read the information. The five factors which affect the performance of the opticalfilter are identified as optical glass type, existence of Fe, Photo pic coating type, and coating form. Inthis study we seek to determine the optimal combination for the best design of the optical filter. For eachcombination, the performances of optical filter are investigated using the proper experimental equipmentsand methods. White-state voltage, black-state voltage, and black-state error rate are used for theperformance measures. Through the statistical analysis of the performance data collected, we havedetermined the optimal design of the optical filter.