Structure for integrated touch screen
First Claim
1. A touch screen comprising:
- a substrate having a first surface upon which a touch or proximity event is to be detected, and a second surface that opposes the first surface; and
a first touch sensor electrode and a first display pixel including a first display pixel TFT and a liquid crystal material formed on the second surface of the substrate, wherein;
the first touch sensor electrode is disposed between the second surface of the substrate and the first display pixel TFT,the first display pixel TFT is disposed between the first touch sensor electrode and the liquid crystal material, andthe first touch sensor electrode is configured to detect the touch or proximity event.
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Abstract
A touch screen is disclosed. The touch screen can comprise a substrate having a first surface upon which a touch or proximity event is to be detected, and a second surface that opposes the first surface, and a touch sensor electrode and a first display pixel including a first display pixel TFT formed on the second surface of the substrate. The first touch sensor electrode can be disposed between the second surface of the substrate and the first display pixel TFT, and the first touch sensor electrode can be configured to detect the touch or proximity event. In some examples, the substrate can comprise a TFT glass substrate. In some examples, the touch screen can comprise a first touch sensor routing electrically coupled to the first touch sensor electrode, wherein the first touch sensor routing is disposed between the second surface of the substrate and the first display pixel TFT.
212 Citations
25 Claims
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1. A touch screen comprising:
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a substrate having a first surface upon which a touch or proximity event is to be detected, and a second surface that opposes the first surface; and a first touch sensor electrode and a first display pixel including a first display pixel TFT and a liquid crystal material formed on the second surface of the substrate, wherein; the first touch sensor electrode is disposed between the second surface of the substrate and the first display pixel TFT, the first display pixel TFT is disposed between the first touch sensor electrode and the liquid crystal material, and the first touch sensor electrode is configured to detect the touch or proximity event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 24, 25)
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10. A touch screen comprising:
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a substrate having a first surface upon which a touch or proximity event is to be detected, and a second surface that opposes the first surface; and a touch sensor electrode layer, a display pixel TFT layer, and a liquid crystal material formed on the second surface of the substrate, wherein; the touch sensor electrode layer is disposed between the second surface of the substrate and the display pixel TFT layer, the display pixel TFT layer is disposed between the touch sensor electrode layer and the liquid crystal material, and the touch sensor electrode layer has a plurality of touch sensor electrodes configured to detect the touch or proximity event. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method for fabricating a touch screen, the method comprising:
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forming a first touch sensor electrode on a second surface of a substrate, the substrate having the second surface and a first surface that opposes the second surface, the first surface being a surface upon which a touch or proximity event is to be detected by the first touch sensor electrode; and forming a first display pixel including a first display pixel TFT and a liquid crystal material on the second surface of the substrate, wherein the first touch sensor electrode is disposed between the second surface of the substrate and the first display pixel TFT, and the first display pixel TFT is disposed between the first touch sensor electrode and the liquid crystal material. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification