TOUCH SENSOR STRUCTURES FOR DISPLAYS
First Claim
Patent Images
1. A touch sensor structure in a touch screen, comprising:
- a clear flexible polymer substrate;
transparent capacitive touch sensor electrodes formed on the flexible polymer substrate; and
metal traces on the clear flexible polymer substrate that are electrically connected to the transparent capacitive touch sensor electrodes.
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Abstract
An electronic device may have a touch screen display. The display may have a touch sensor structure that determines the location at which external objects touch the display. The touch sensor structure may have a clear substrate on which conductive capacitive touch sensor electrodes are formed. The electrodes may be formed from a transparent conductive material such as indium-tin oxide. The clear substrate may be formed from a flexible material such as a polymer. The polymer may be a clear polyimide. Copper traces or other conductive traces may be used to route sensor signals from the capacitive touch sensor electrodes to processing circuitry in the electronic device.
235 Citations
23 Claims
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1. A touch sensor structure in a touch screen, comprising:
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a clear flexible polymer substrate; transparent capacitive touch sensor electrodes formed on the flexible polymer substrate; and metal traces on the clear flexible polymer substrate that are electrically connected to the transparent capacitive touch sensor electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A touch sensor structure in a touch screen, comprising:
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a transparent polymer substrate having front and rear surfaces; and transparent capacitive touch sensor electrodes formed on the front and rear surfaces of the transparent polymer substrate. - View Dependent Claims (13, 14, 15)
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16. An electronic device, comprising:
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a transparent flexible polymer substrate having front and rear surfaces; and transparent indium-tin oxide capacitive touch sensor electrodes formed on the front and rear surfaces of the transparent flexible polymer substrate. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification