Integrated touch paint system for displays
First Claim
1. An integrated, electromagnetic energy interference shielding, light beam touch panel system for use in conjunction with a display apparatus having a screen upon which information is displayed, comprising:
- a substantially optically transparent faceplate disposed across the screen through which the screen may be viewed;
first means for shielding the faceplate against the propagation through it of electromagnetic energy interference;
a raised border through which the light beams pass disposed at a preselected position in relation to the faceplate to define an active touch panel area over the faceplate;
second means for shielding the raised border against the propagation through it of electromagnetic energy interference, the second means being in electrical contact with the first means;
a bezel mounted at the front of the display apparatus and adjacent the active touch panel area;
third means for shielding the bezel against the propagation through it of electromagnetic energy interference, the third means being in electrical contact with the second means;
an outer enclosure mounted around the sides, top, bottom, and back of the display apparatus and to the bezel; and
fourth means for shielding the outer enclosure against the propagation through it of electromagnetic energy interference, the fourth means being in electrical contact with the third means.
3 Assignments
0 Petitions
Accused Products
Abstract
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.
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Citations
50 Claims
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1. An integrated, electromagnetic energy interference shielding, light beam touch panel system for use in conjunction with a display apparatus having a screen upon which information is displayed, comprising:
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a substantially optically transparent faceplate disposed across the screen through which the screen may be viewed; first means for shielding the faceplate against the propagation through it of electromagnetic energy interference; a raised border through which the light beams pass disposed at a preselected position in relation to the faceplate to define an active touch panel area over the faceplate; second means for shielding the raised border against the propagation through it of electromagnetic energy interference, the second means being in electrical contact with the first means; a bezel mounted at the front of the display apparatus and adjacent the active touch panel area; third means for shielding the bezel against the propagation through it of electromagnetic energy interference, the third means being in electrical contact with the second means; an outer enclosure mounted around the sides, top, bottom, and back of the display apparatus and to the bezel; and fourth means for shielding the outer enclosure against the propagation through it of electromagnetic energy interference, the fourth means being in electrical contact with the third means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An integrated, electromagnetic energy interference shielding, light beam touch panel system for use in conjunction with a display apparatus having a screen upon which information is displayed, comprising:
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a substantially optically transparent faceplate disposed across the screen through which the screen may be viewed; first means for shielding the faceplate against the propagation through it of electromagnetic energy interference comprising electrically conductive material coextensive with the faceplate through which the screen can be viewed; a raised border through which the light beams pass disposed at a preselected position in relation to the faceplate to define an active touch panel area over the faceplate; second means for shielding the raised border against the propagation through it of electromagnetic energy interference, comprising electrically conductive material coextensive with the border through which the light beams pass and which is in electrical contact with the first means; an electrically conductive bezel mounted at the front of the display apparatus and in electrical contact with the second means; and an electrically conductive outer enclosure substantially surrounding the sides, top, bottom, and back of the display apparatus and in electrical contact with the bezel. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. An integrated, electromagnetic energy interference shielding, light beam touch panel system for use in conjunction with a display apparatus having a screen upon which information is displayed, comprising:
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a substantially optically transparent faceplate disposed across the screen through which the screen may be viewed; first means for shielding the faceplate against the propagation through it of electromagnetic energy interference comprising an electrically conductive wire mesh embedded in the faceplate and coextensive therewith; a raised border through which the light beams pass disposed at a preselected position in relation to the faceplate and at an obtuse angle to the faceplate to define an active touch panel area over the faceplate; second means for shielding the raised border against the propagation through it of electromagnetic energy interference, the second means comprising positioning the wire mesh so that it is also coextensive with the raised border; an electrically conductive bezel mounted at the front of the display apparatus and in contact with the raised border and the wire mesh; and an electrically conductive outer enclosure substantially surrounding the sides, top, bottom, and back of the display apparatus and in electrical contact with the bezel; whereby electrically conductive shielding substantially surrounds the display apparatus. - View Dependent Claims (47, 48, 49, 50)
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Specification