Touch screens with transparent conductive material resistors
First Claim
Patent Images
1. A touch panel having integrated transparent conductive material resistors, comprising:
- a pattern of transparent conductive material traces formed from a deposition of a transparent conductive material on a first surface of the touch panel, the pattern of transparent conductive material traces deposited in a display area of the touch panel and the same deposition of the transparent conductive material also forming a plurality of transparent conductive material resistors in a non-display area of the touch panel; and
a plurality of metal traces connected to the pattern set of transparent conductive material traces;
wherein the plurality of transparent conductive material resistors are connected to the metal traces and configured to form a portion of a low pass filter for blocking electromagnetic interference on the connected metal traces.
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Abstract
Systems and methods for touch screens with integrated transparent conductive material resistors are provided. Metal traces on the surface of a touch screen may be subject to radio-frequency interference (RFI) that can adversely affect the performance of the touch screen. Transparent conductive material resistors inserted within the metal trace paths can be used to form low-pass filters which can reduce the affect of the RFI.
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Citations
22 Claims
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1. A touch panel having integrated transparent conductive material resistors, comprising:
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a pattern of transparent conductive material traces formed from a deposition of a transparent conductive material on a first surface of the touch panel, the pattern of transparent conductive material traces deposited in a display area of the touch panel and the same deposition of the transparent conductive material also forming a plurality of transparent conductive material resistors in a non-display area of the touch panel; and a plurality of metal traces connected to the pattern set of transparent conductive material traces; wherein the plurality of transparent conductive material resistors are connected to the metal traces and configured to form a portion of a low pass filter for blocking electromagnetic interference on the connected metal traces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer system having a touch panel with integrated transparent conductive material resistors, comprising:
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a processor configured to execute instructions and to carry out operations associated with the computer system; a display device that is operatively coupled to the processor; a touch panel that is operatively coupled to the processor, the touch panel being a substantially transparent panel that is positioned in front of the display, the touch panel including a pattern of transparent conductive material traces formed from a deposition of a transparent conductive material on a first surface of the touch panel, the pattern of transparent conductive material traces deposited in a display area of the touch panel and the same deposition of the transparent conductive material also forming a plurality of transparent conductive material resistors in a non-display area of the touch panel; and a plurality of metal traces connected to the pattern set of transparent conductive material traces; wherein the plurality of transparent conductive material resistors are connected to the metal traces and configured to form a portion of a low pass filter for blocking electromagnetic interference on the connected metal traces. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for fabricating a touch panel having transparent conductive material resistors, comprising:
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forming a plurality of metal traces on the touch panel, the metal traces including one or more breaks; and forming a pattern of material traces from a deposition of a-transparent conductive material on a first surface of the touch panel, the pattern of material traces deposited in a display area of the touch panel and the same deposition of the transparent conductive material also forming a plurality of transparent conductive material resistors in a non-display area of the touch panel, the resistors formed within the breaks of the metal traces and configured to form a portion of a low pass filter for blocking electromagnetic interference on the connected metal traces. - View Dependent Claims (22)
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Specification