Flexible sheet for resistive touch screen
First Claim
1. A resistive touch screen, comprising:
- a) a substrate;
b) a first conductive layer located on the substrate;
c) a flexible cover sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, each integral compressible spacer dot having a base closest to the planar surface and a peak furthest from the planar surface, with a microstructured surface on the peak of each of the integral compressible spacer dots; and
d) a second conductive layer located on the flexible cover sheet, the peaks of the integral compressible spacer dots extending through the second conductive layer, whereby, when a force is applied to the flexible transparent cover sheet at the location of one of the compressible spacer dots, the compressible spacer dot is compressed to allow electrical contact between the first and second conductive layers.
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Accused Products
Abstract
A resistive touch screen, comprising: a) a substrate; b) a first conductive layer located on the substrate; c) a flexible cover sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, each integral compressible spacer dot having a base closest to the planar surface and a peak furthest from the planar surface, with a microstructured surface on the peak of each of the integral compressible spacer dots; and d) a second conductive layer located on the flexible cover sheet, the peaks of the integral compressible spacer dots extending through the second conductive layer, whereby, when a force is applied to the flexible transparent cover sheet at the location of one of the compressible spacer dots, the compressible spacer dot is compressed to allow electrical contact between the first and second conductive layers.
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Citations
19 Claims
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1. A resistive touch screen, comprising:
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a) a substrate;
b) a first conductive layer located on the substrate;
c) a flexible cover sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, each integral compressible spacer dot having a base closest to the planar surface and a peak furthest from the planar surface, with a microstructured surface on the peak of each of the integral compressible spacer dots; and
d) a second conductive layer located on the flexible cover sheet, the peaks of the integral compressible spacer dots extending through the second conductive layer, whereby, when a force is applied to the flexible transparent cover sheet at the location of one of the compressible spacer dots, the compressible spacer dot is compressed to allow electrical contact between the first and second conductive layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of making a resistive touch screen, comprising the steps of:
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a) providing a substrate;
b) forming a first conductive layer on the substrate;
c) providing a flexible cover sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, each integral compressible spacer dot having a base closest to the planar surface and a peak furthest from the planar surface, with a microstructured surface on the peak of each of the integral compressible spacer dots;
d) forming a second conductive layer on the flexible cover sheet between the integral compressible spacer dots by coating a conductive material over the flexible cover sheet such that the microstructured surface of the integral compressible spacer dot peaks do not wet and are not covered with the second conductive layer; and
e) locating the flexible cover sheet over the substrate such that when a force is applied to the flexible cover sheet at the location of one of the integral compressible spacer dots, the integral compressible spacer dot is compressed to allow electrical contact between the first and second conductive layers. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification