Integrated touch screen
First Claim
1. A touch screen integrated with a display, the touch screen comprising:
- a plurality of display pixels arranged along first and second directions;
a plurality of drive lines including some of the plurality of display pixels disposed along the first direction;
a plurality of sense lines including others of the plurality of display pixels disposed along the second direction, different from the first direction;
a plurality of touch or near-touch responsive pixels formed by the plurality of drive lines and the plurality of sense lines;
each of the plurality of drive lines including first groups of circuit elements of the plurality of display pixels;
each of the plurality of sense lines including a second group of circuit elements of the plurality of display pixels;
a conductive layer interconnecting at least some of the circuit elements within the first groups along, or substantially parallel to, at least the first and the second directions;
the conductive layer further interconnecting at least some of the circuit elements of the second group along, or substantially parallel to, at least the second direction;
a bypass tunnel electrically connecting at least some circuit elements of a first of the second groups with circuit elements of a second of the second groups, the bypass tunnel electrically bypassing circuit elements of the first group of circuit elements.
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Accused Products
Abstract
Displays with touch sensing circuitry integrated into the display pixel stackup are provided. 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.
138 Citations
21 Claims
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1. A touch screen integrated with a display, the touch screen comprising:
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a plurality of display pixels arranged along first and second directions; a plurality of drive lines including some of the plurality of display pixels disposed along the first direction; a plurality of sense lines including others of the plurality of display pixels disposed along the second direction, different from the first direction; a plurality of touch or near-touch responsive pixels formed by the plurality of drive lines and the plurality of sense lines; each of the plurality of drive lines including first groups of circuit elements of the plurality of display pixels; each of the plurality of sense lines including a second group of circuit elements of the plurality of display pixels; a conductive layer interconnecting at least some of the circuit elements within the first groups along, or substantially parallel to, at least the first and the second directions; the conductive layer further interconnecting at least some of the circuit elements of the second group along, or substantially parallel to, at least the second direction; a bypass tunnel electrically connecting at least some circuit elements of a first of the second groups with circuit elements of a second of the second groups, the bypass tunnel electrically bypassing circuit elements of the first group of circuit elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16)
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13. A touch screen comprising:
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display circuitry including first circuit elements of display pixels and connections to a display driver; and touch sensing circuitry including drive lines including some of the first circuit elements of the display pixels, and sense lines that include at least two conductive line portions disposed on opposite sides of the drive lines; a conductive pathway electrically connecting together the at least two conductive line portions while bypassing the drive lines, the conductive pathway including second, different circuit elements of the display pixels, the drive lines being formed by drive regions having circuit elements of display pixels electrically connected together within each drive region along at least a first direction and along a second different direction; the sense lines being formed by the at least two line portions and having circuit elements of display pixels electrically connected together within each sense region along at least one of the first or second directions. - View Dependent Claims (14, 15)
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17. A touch screen having an integrated display, the touch screen comprising:
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a plurality of display pixels, each having a corresponding circuit element; first and second sense line regions each region including at least a first plurality of circuit elements of the display pixels; a drive line region disposed between the first and second drive line regions and including at least a second plurality of circuit elements of the display pixels; a plurality of touch regions formed by adjacent ones of the plurality of drive lines and the plurality of sense lines; the plurality of display pixels including a first pixel type which includes a first conductive layer connected to the corresponding circuit element of the first pixel type and electrically connected to at least an adjacent first pixel type along both a positive and a negative first direction and a positive and a negative second direction; and a conductive pathway for electrically connecting together the circuit elements of the first and second sense line regions while bypassing the drive line region. - View Dependent Claims (18, 19, 20, 21)
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Specification