Touch screen capable of isolating noise signals
First Claim
1. A current sensing type touch screen capable of eliminating noise signals comprising a glass layer, a conductive membrane layer, a linearization pattern layer, an isolation layer, a five wire silver printing layer and a tail cable;
- wherein;
four conductive wires are connected to four ends of the linearization pattern layer and another four ends are connected to a controller, the fifth conductive wire having one end suspended and another end linked to the controller;
wherein the fifth conductive wire which has one end suspended being capable of detecting noise signals which affect the controller, and the controller using the noise signals detected by the fifth wire to eliminate interference caused by the noise signals in the controller whereby to form a five wire currents sensing type touch screen with offset noise signals.
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Accused Products
Abstract
A touch screen capable of isolating noise signals is mainly a touch screen installing at the front side of a liquid crystal display (LCD) screen or cathode ray tube (CRT) for eliminating electromagnetic and radio frequency interference received by the LCD and CRT. The touch screen includes an antenna like conductive wire which is able to receive same noise signals mixed in the touch control signals. The touch screen controller uses the noise signals received by the antenna wire to offset the noise signals in the controller for increasing accuracy of the touch screen.
74 Citations
12 Claims
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1. A current sensing type touch screen capable of eliminating noise signals comprising a glass layer, a conductive membrane layer, a linearization pattern layer, an isolation layer, a five wire silver printing layer and a tail cable;
- wherein;
four conductive wires are connected to four ends of the linearization pattern layer and another four ends are connected to a controller, the fifth conductive wire having one end suspended and another end linked to the controller;
wherein the fifth conductive wire which has one end suspended being capable of detecting noise signals which affect the controller, and the controller using the noise signals detected by the fifth wire to eliminate interference caused by the noise signals in the controller whereby to form a five wire currents sensing type touch screen with offset noise signals. - View Dependent Claims (2, 3, 4, 8)
- wherein;
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5. A five wire voltage sensing type touch screen capable of eliminating noise signals comprising a glass layer, a first conductive membrane layer, an insulation points layer, a first isolation layer, a five wire silver printing layer, a second isolation layer, a second conductive membrane layer, and a membrane layer;
- wherein;
four conductive wires are connected to four ends of a linearization pattern layer and another four ends are connected to a controller, the fifth conductive wire having one end suspended and another end linked to the controller;
wherein the fifth conductive wire which has one end suspended being capable of detecting noise signals which affect the controller, and the controller using the noise signals detected by the fifth wire to eliminate interference caused by the noise signals in the controller whereby to form a five wire voltage sensing type touch screen with offset noise signals. - View Dependent Claims (6, 7)
- wherein;
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9. A six wire voltage sensing type touch screen capable of eliminating noise signals comprising a glass layer, a first conductive membrane layer, a linearization pattern layer, an insulation points layer, a first isolation layer, a five wire silver printing layer, a second isolation layer, a second conductive membrane layer, and a membrane layer;
- wherein;
four conductive wires are connected to four ends of the linearization pattern layer and another four ends are connected to a controller, the sixth conductive wire having one end suspended and another end linked to the controller;
wherein the sixth conductive wire which has one end suspended being capable of detecting noise signals which affect the controller, and the controller using the noise signals detected by the sixth wire to eliminate interference caused by the noise signals in the controller whereby to form a six wire voltage sensing type touch screen with offset noise signals. - View Dependent Claims (10, 11, 12)
- wherein;
Specification