Integrated touch screen
First Claim
1. A stackup of a plurality of display pixels, the stackup comprising:
- a first layer of conductive material;
a second layer of conductive material;
a third layer of conductive material including first conductive lines in a first direction, each of the first conductive lines including a plurality of first line portions extending through plural display pixels and separated from each other by disconnections; and
second conductive lines in a second direction transverse to the first direction, each of the second conductive lines including a plurality of second line portions extending through plural display pixels and separated from each other by disconnections,wherein circuit elements of the display pixels in a first region are electrically connected together in the first direction by a first plurality of the first line portions, the circuit elements of the display pixels in the first region are electrically connected together in the second direction by a first plurality of the second line portions, and a plurality of display pixels disposed along the first direction in the first region are contact pixels that include contact points that electrically connect the circuit elements of each of the contact pixels with a conductive pathway that extends along the first direction from the first region into a second region of display pixels without electrically connecting to circuit elements of display pixels in the second region.
1 Assignment
0 Petitions
Accused Products
Abstract
Displays with touch sensing circuitry integrated into the display pixel stackup are provided. Circuit elements, such as touch signal lines, such as drive lines and sense lines, grounding regions, in the display pixel stackups can be grouped together to form touch sensing circuitry that senses a touch on or near the display. An integrated touch screen can include multi-function circuit elements that can operate as circuitry of the display system to generate an image on the display, and can also form part of a touch sensing system that senses one or more touches on or near the display. The multi-function circuit elements can be, for example, capacitors in display pixels that can be configured to operate as storage capacitors/electrodes, common electrodes, conductive wires/pathways, etc., of the display circuitry in the display system, and that may also be configured to operate as circuit elements of the touch sensing circuitry.
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Citations
20 Claims
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1. A stackup of a plurality of display pixels, the stackup comprising:
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a first layer of conductive material; a second layer of conductive material; a third layer of conductive material including first conductive lines in a first direction, each of the first conductive lines including a plurality of first line portions extending through plural display pixels and separated from each other by disconnections; and second conductive lines in a second direction transverse to the first direction, each of the second conductive lines including a plurality of second line portions extending through plural display pixels and separated from each other by disconnections, wherein circuit elements of the display pixels in a first region are electrically connected together in the first direction by a first plurality of the first line portions, the circuit elements of the display pixels in the first region are electrically connected together in the second direction by a first plurality of the second line portions, and a plurality of display pixels disposed along the first direction in the first region are contact pixels that include contact points that electrically connect the circuit elements of each of the contact pixels with a conductive pathway that extends along the first direction from the first region into a second region of display pixels without electrically connecting to circuit elements of display pixels in the second region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A touch screen having an integrated display, the touch screen comprising:
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a plurality of display pixels, each having a gate line, a data line and a circuit element; a first plurality of drive lines in a first region, including at least a first conductive layer connected to at least a first plurality of circuit elements of the display pixels, the first conductive layer connecting the first plurality of circuit elements to one another along both a positive and a negative first direction and a positive and a negative second direction; a plurality of sense lines in a second region including at least a second plurality of circuit elements of the display pixels; a second plurality of drive lines in a third region, including at least a first conductive layer connected to at least a first plurality of circuit elements of the display pixels, the first conductive layer connecting the first plurality of circuit elements to one another along both a positive and a negative first direction and a positive and a negative second direction; the second region disposed between the first and third regions along the first direction; the first conductive layer in the first region electrically connected to the first conductive layer in the third region by at least one conductive pathway that extends through the second region without connecting to the second plurality of circuit elements of the second region; in the first region, a plurality of display pixels disposed along the first direction within at least one of the plurality of drive lines comprising contact pixels that include contact vias that electrically couple the circuit elements of each of the contact pixels with the at least one conductive pathway; wherein a plurality of touch pixels are formed by adjacent ones of the first plurality of drive lines and the plurality of sense lines and adjacent ones of the second plurality of drive lines and the plurality of sense lines. - View Dependent Claims (17)
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18. A computer system comprising:
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a processor; a memory; a display system including display circuitry that includes a plurality of circuit elements of display pixels, and a display controller; and a touch sensing system including touch sensing circuitry that includes the plurality of circuit elements grouped into a plurality of first regions and a plurality of second regions and arranged such that a second region is disposed between two first regions, wherein electrically conductive pathways through the second regions couple circuit elements of a plurality of first regions while bypassing circuit elements of the plurality of second regions, the conductive pathways coupling circuit elements of the plurality of first regions via a plurality of adjacent contact pixels disposed within at least some of the plurality of first regions; the circuit elements of each of the first regions being electrically connected together along a first direction and along a second direction, transverse to the first direction, and a touch controller.
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19. A touch screen comprising:
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touch sensing circuitry that includes a plurality of display pixels having a plurality of circuit elements grouped into a plurality of first regions and a plurality of second regions, arranged such that a second region is disposed between two first regions, wherein electrically conductive pathways through the plurality of second regions couple circuit elements of the plurality of first regions while bypassing circuit elements of the plurality of second regions, the conductive pathways coupling circuit elements of the plurality of first regions via a plurality of adjacent contact pixels disposed within at least some of the plurality of first regions; and the circuit elements of each of the first and second regions being electrically connected together along a first direction and along a second direction, transverse to the first direction; wherein touch pixels are formed by capacitive coupling between circuit elements in adjacent first and second regions. - View Dependent Claims (20)
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Specification