User interface
First Claim
1. A resistive touch panel having an active area and including a base layer comprising:
- a resistive layer covering the active area of the touch panel;
a plurality of electrodes disposed to induce a voltage gradient across the resistive layer;
a linearization pattern comprising a plurality of resistors disposed over at least a portion of the resistive layer for maintaining the uniformity of the voltage gradient across the resistive layer; and
an insulator covering a least a portion of the linearization pattern;
wherein the insulator reduces changes in the voltage gradient over time.
1 Assignment
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Accused Products
Abstract
A resistive touch panel including a base layer is disclosed. The touch panel includes a resistive layer covering the active area of the touch panel. The touch panel also includes a plurality of electrodes disposed to induce a voltage gradient across the resistive layer. The touch panel also includes a linearization pattern comprising a plurality of resistors disposed over at least a portion of the resistive layer for maintaining the uniformity of the voltage gradient across the resistive layer. The touch panel also includes an insulator covering a least a portion of the linearization pattern. The insulator reduces changes in the voltage gradient over time. A method of making a resistive touch screen is also disclosed.
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Citations
37 Claims
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1. A resistive touch panel having an active area and including a base layer comprising:
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a resistive layer covering the active area of the touch panel;
a plurality of electrodes disposed to induce a voltage gradient across the resistive layer;
a linearization pattern comprising a plurality of resistors disposed over at least a portion of the resistive layer for maintaining the uniformity of the voltage gradient across the resistive layer; and
an insulator covering a least a portion of the linearization pattern;
wherein the insulator reduces changes in the voltage gradient over time. - View Dependent Claims (2, 3, 4, 6, 7)
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- 5. The resistive touch panel of claim 5 wherein the insulator does not substantially increase the resistance of the plurality of resistors at ambient temperature and ambient humidity.
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20. An electronic display including a touch panel comprising:
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a linearization pattern comprising a plurality of resistors disposed to straighten a voltage gradient induced by electrodes coupled to a resistive layer;
an insulator covering at least a portion of the linearization pattern;
wherein the insulator reduces changes in the voltage gradient over time. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of making a resistive touch screen having a base layer, a plurality of electrodes of the base layer separated by a resistor, and an insulator coupled to the resistor, the method comprising:
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applying the insulator to the resistor;
wherein the insulator does not substantially increase the resistance of the resistor at ambient temperature and humidity. - View Dependent Claims (32, 33, 34)
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35. A resistive touch screen comprising:
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a base layer coupled to a flexible layer by a fastener;
a linearization region comprising a plurality of resistors between a first conductor and a second conductor for reducing a bow of a voltage gradient between the first conductor and the second conductor;
an insulator means for maintaining the resistance of the plurality of resistors. - View Dependent Claims (36, 37)
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Specification