| Popis: |
In the past few years, there have been many attempts to commercialize Polymer Dispersed Liquid Crystal (PDLC) for Rear Projection Screen (RPS) in electrically switchable films and glass products. This application is based on the exceptional image quality of PDLC at a wide viewing angle. However, due to the high price of conventional switchable PDLC privacy glass, the integration of RPS in PDLC failed to attract large multimedia and entertainment markets. An obvious solution to this problem is the independent development and evaluation of PDLC for Passive Rear Projection Screen (PRPS) application. However, in order to approve the application of PDLC for this purpose, further optical and image (visual) analyses are required. This work is the first part of our research project on evaluation of PDLC for RPS application, where we studied the effect of material and process parameters on optical properties of passive PDLC screens. The results indicate a strong dependence of the performances of passive PDLC screen on the material and process parameters, though it offers great advantages over conventional commercial RPS products. The second part of this study will focus on image evaluation of PDLC that will be the subject of a future study. |
