Capacitive touch screen suitable for use in an interactive information display
First Claim
1. A capacitive touch screen suitable for use in an interactive information display, said capacitive touch screen comprising:
- a first transparent glass substrate having a thickness of less than or equal to about 0.3 millimeters, said first transparent glass substrate having a first surface and a second surface;
a second substrate comprising a transparent rigid substrate having a third surface and a fourth surface, said second substrate having a transparent conductive thin film providing capacitive touch function disposed at said third surface thereof;
wherein said second surface of said first transparent glass substrate is laminated directly to said third surface of said second substrate in order to form a capacitive touch screen having enhanced durability; and
wherein said transparent conductive thin film of said second substrate opposes said second surface of said first transparent glass substrate when said second surface of said first transparent glass substrate is laminated directly to said third surface of said second substrate.
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Accused Products
Abstract
A capacitive touch screen suitable for use in an interactive information display includes a first transparent glass substrate having first and second surfaces and a thickness of less than or equal to about 0.3 millimeters, and a second substrate having third and fourth surfaces and a transparent conductive thin film disposed at the third surface thereof. The second surface of the first transparent glass substrate is laminated to the third surface of the second substrate in order to form a capacitive touch screen having enhanced durability. The transparent conductive thin film of the second substrate opposes the second surface of the first transparent glass substrate when the second surface of the first transparent glass substrate is laminated to the third surface of the second substrate.
39 Citations
43 Claims
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1. A capacitive touch screen suitable for use in an interactive information display, said capacitive touch screen comprising:
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a first transparent glass substrate having a thickness of less than or equal to about 0.3 millimeters, said first transparent glass substrate having a first surface and a second surface; a second substrate comprising a transparent rigid substrate having a third surface and a fourth surface, said second substrate having a transparent conductive thin film providing capacitive touch function disposed at said third surface thereof; wherein said second surface of said first transparent glass substrate is laminated directly to said third surface of said second substrate in order to form a capacitive touch screen having enhanced durability; and wherein said transparent conductive thin film of said second substrate opposes said second surface of said first transparent glass substrate when said second surface of said first transparent glass substrate is laminated directly to said third surface of said second substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A capacitive touch screen suitable for use in an interactive information display, said capacitive touch screen comprising:
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a first transparent glass substrate having a thickness of less than or equal to about 0.3 millimeters, said first transparent glass substrate having a first surface and a second surface; a second substrate comprising a transparent rigid substrate having a third surface and a fourth surface, said second substrate having a transparent conductive thin film providing capacitive touch function disposed at said third surface thereof; wherein said transparent conductive thin film comprises one of (i) tin oxide, (ii) indium tin oxide and (iii) antimony doped tin oxide; wherein said transparent conductive thin film has a physical thickness of about 600 angstroms; wherein said transparent conductive thin film has a sheet resistance of at least about 1000 ohms per square; wherein said second surface of said first transparent glass substrate is laminated directly to said third surface of said second substrate in order to form a capacitive touch screen having enhanced durability; and wherein said transparent conductive thin film of said second substrate opposes said second surface of said first transparent glass substrate when said second surface of said first transparent glass substrate is laminated directly to said third surface of said second substrate. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A capacitive touch screen suitable for use in an interactive information display, said capacitive touch screen comprising:
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a first transparent glass substrate having a thickness of less than or equal to about 0.3 millimeters, said first transparent glass substrate having a first surface and a second surface; a second transparent glass substrate comprising a transparent rigid glass substrate having a third surface and a fourth surface; wherein said second transparent glass substrate has a transparent conductive thin film providing capacitive touch function disposed at said third surface thereof and wherein said transparent conductive thin film comprises antimony doped tin oxide; wherein said second substrate comprises one of (a) a transparent rigid glass substrate and (b) a transparent rigid polymeric substrate; wherein said transparent conductive thin film has a physical thickness of about 600 angstroms; wherein said transparent conductive thin film has a sheet resistance of about 1000 ohms to about 3500 ohms per square; wherein said second surface of said first transparent glass substrate is laminated directly to said third surface of said second transparent glass substrate in order to form a capacitive touch screen having enhanced durability; and wherein said coated third surface of said second transparent glass substrate opposes said second surface of said first transparent glass substrate when said second surface of said first transparent glass substrate is laminated directly to said third surface of said second transparent glass substrate. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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33. A capacitive touch screen suitable for use in an interactive information display, said capacitive touch screen comprising:
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a first transparent glass substrate having a thickness of less than or equal to about 0.3 millimeters, said first transparent glass substrate having a first surface and a second surface; a second substrate comprising a transparent rigid substrate having a third surface and a fourth surface, said second substrate having a transparent conductive thin film providing capacitive touch function disposed at said third surface thereof; wherein said second substrate comprises one of (a) a transparent rigid glass substrate and (b) a transparent rigid polymeric substrate; wherein said transparent conductive thin film has a sheet resistance of about 1000 ohms to about 3500 ohms per square; wherein said second surface of said first transparent glass substrate is laminated directly to said third surface of said second substrate in order to form a capacitive touch screen having enhanced durability; and wherein said transparent conductive thin film of said second substrate opposes said second surface of said first transparent glass substrate when said second surface of said first transparent glass substrate is laminated directly to said third surface of said second substrate. - View Dependent Claims (34, 35, 36, 37, 38, 39)
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40. A capacitive touch screen suitable for use in an interactive information display, said capacitive touch screen comprising:
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a first transparent glass substrate having a thickness of less than or equal to about 0.1 millimeters, said first transparent glass substrate having a first surface and a second surface; a second substrate comprising a transparent rigid glass substrate having a third surface and a fourth surface, said second substrate having a transparent conductive thin film providing capacitive touch function disposed at said third surface thereof; wherein said transparent conductive thin film comprises antimony doped tin oxide; wherein said transparent conductive thin film has a physical thickness of about 600 angstroms; wherein said transparent conductive thin film has a sheet resistance of about 1000 ohms to about 3500 ohms per square; wherein said second surface of said first transparent glass substrate is laminated directly to said third surface of said second substrate in order to form a capacitive touch screen having enhanced durability; and wherein said transparent conductive thin film of said second substrate opposes said second surface of said first transparent glass substrate when said second surface of said first transparent glass substrate is laminated directly to said third surface of said second substrate. - View Dependent Claims (41, 42, 43)
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Specification