| 摘要 |
A touch panel system for displays is provided having electromagnetic energy interference shielding arrangements coupled with other features for an integrated, easily maintained, operator-adapted touch panel system. The system includes an electromagnetic energy interference shielding bezel mounted at the front of the display unit to an outer display housing. The bezel is integrated with an optically transparent and electrically conductive faceplate covering the display, and a raised border with an associated electromagnetic energy interference seal located at the periphery of the active touch panel area which is disposed between the faceplate and the bezel to complete an electrical path. The faceplate is roughened to disperse spatial interference patterns and reflections, and in one embodiment, has an electrically conductive wire mesh disposed within it for electromagnetic energy interference sealing and contrast enhancement for filtering extraneous light in the manner of a venetian blind. The faceplate may be provided with an electrically conductive coating for electromagnetic energy interference shielding and for contrast enhancement. The system includes a fixed function key area around the periphery of the display screen within the active touch panel area as defined by the raised border/zeal combination. The raised border/seal combination can be slanted to eliminate undesired reflection of the edge light beams. |
