Touch sensor feedlines for display
A display device includes a display panel including a plurality of sub-pixels, a touch sensor electrode that is made of a first conductive and opaque material layer that is located directly on the display panel and overlaps a portion of the display panel in between a portion of the plurality of sub-pixels, and a feedline that is made of a second conductive and opaque material layer that is connected to the touch sensor electrode, overlaps a portion of the display panel in between some of the plurality of sub-pixels that is not overlapped by the touch sensor electrode, defines a pair of conductors around a sub-pixel in one or more columns of sub-pixels of the plurality of sub-pixels such that the pair of conductors are electrically connected above and below each sub-pixel in the one or more columns, and routes the touch sensor electrode to a touch sensor controller.
1. A display device comprising:
a display panel including a plurality of sub-pixels;
a touch sensor electrode that is made of a first conductive and opaque material layer that is located directly on the display panel and overlaps a portion of the display panel in between a portion of the plurality of sub-pixels; and
a feedline that is made of a second conductive and opaque material layer that is connected to the touch sensor electrode, overlaps a portion of the display panel in between some of the plurality of sub-pixels that is not overlapped by the touch sensor electrode, defines a pair of conductors around a sub-pixel in one or more columns of sub-pixels of the plurality of sub-pixels such that the pair of conductors are electrically connected above and below each sub-pixel in the one or more columns, and routes the touch sensor electrode to a touch sensor controller.
2. The display device of claim 1 , wherein the touch sensor electrode and the feedline overlap a non-emissive region between the plurality of sub-pixels.
3. The display device of claim 1 , wherein a distance between an edge of the feedline and a nearest edge of the sub-pixel in the one or more columns of sub-pixels is constant or substantially constant around the sub-pixel in the one or more columns of sub-pixels.
4. The display device of claim 1 , wherein a distance between an edge of the feedline and a nearest edge of the sub-pixel in the one or more columns of sub-pixels is more than a distance where light directly emitted from the sub-pixel in the one or more columns of sub-pixels is blocked by the feedline.
5. The display device of claim 1 , wherein the sub-pixel in the one or more columns of sub-pixels includes at least two rounded corners or cut-off corners at corners where the sub-pixel in the one or more columns of sub-pixels is closest to an adjacent sub-pixel in a same row of sub-pixels.
6. The display device of claim 1 , wherein
the plurality of sub-pixels include an edge at an angle of about 45° to an edge of the display device;
a direction of the one or more columns of sub-pixels is parallel or substantially parallel to the edge of the display device; and
the direction of the one or more columns of sub-pixels is a direction between a first sub-pixel and an adjacent sub-pixel in the one or more columns of sub-pixels.
7. The display device of claim 6 , wherein
the sub-pixel in the one or more columns of sub-pixels includes an edge parallel or substantially parallel to the direction of the one or more columns of sub-pixels; and
the edge parallel or substantially parallel to the direction of the one or more columns of sub-pixels is an edge of the sub-pixel closest to an adjacent sub-pixel in a direction perpendicular or substantially perpendicular to the direction of the one or more columns of sub-pixels.
8. The display device of claim 1 , wherein the first conductive and opaque material and the second conductive and opaque material are the same.
9. The display device of claim 1 , wherein
the plurality of sub-pixels includes at least two different sizes of sub-pixels;
the feedline is patterned around a sub-pixel column that includes same sized sub-pixels;
the feedline is a same distance between the plurality of sub-pixels; and
a closet separation between adjacent feedlines is greater than a separation between the feedline and the one of the plurality of sub-pixels.
10. The display device of claim 1 , wherein
the plurality of sub-pixels includes at least two different sizes of sub-pixels; and
the feedline is patterned around a sub-pixel column that includes smallest sized sub-pixels of the plurality of sub-pixels.
11. The display device of claim 1 , wherein the touch sensor controller uses a measurement of self-capacitance of the touch sensor electrode.
12. The display device of claim 1 , wherein the plurality of sub-pixels each include an organic light-emitting diode.
13. A plurality of sub-pixels of a display panel comprising:
a series of sub-pixels that are adjacent to each other;
a touch sensor electrode that is made of a first conductive and opaque material layer that is located directly on the display panel and overlaps a portion of the display panel in between a portion of the plurality of sub-pixels; and
a feedline that is made of a second conductive and opaque material layer that is connected to the touch sensor electrode, overlaps a portion of the display panel in between some of the plurality of sub-pixels that is not overlapped by the touch sensor electrode, defines a pair of conductors around a sub-pixel in the series of sub-pixels such that the pair of conductors are electrically connected adjacent to opposite corners of each sub-pixel in the series of sub-pixels, and routes the touch sensor electrode to a touch sensor controller.
14. The plurality of sub-pixels of claim 13 , wherein the touch sensor electrode and the feedline overlap a non-emissive region between the plurality of sub-pixels.
15. The plurality of sub-pixels of claim 13 , wherein a distance between an edge of the feedline and a nearest edge of the sub-pixel in the series of sub-pixels is constant or substantially constant around the sub-pixel in the series of sub-pixels.
16. The plurality of sub-pixels of claim 13 , wherein the first conductive and opaque material and the second conductive and opaque material are the same.
17. The plurality of sub-pixels of claim 13 , wherein the sub-pixel in the series of sub-pixels includes at least two rounded corners or cut-off corners at corners where the sub-pixel in the series of sub-pixels is closest to an adjacent sub-pixel in a same row of sub-pixels.
18. The plurality of sub-pixels of claim 13 , wherein
the plurality of sub-pixels include an edge at an angle of about 45° to an edge of a display device;
a direction of the series of sub-pixels is parallel or substantially parallel to the edge of the display device; and
the direction of the series of sub-pixels is a direction between a first sub-pixel and an adjacent sub-pixel in the series of sub-pixels.
19. The plurality of sub-pixels of claim 18 , wherein
the sub-pixel in the series of sub-pixels includes an edge parallel or substantially parallel to the direction of the series of sub-pixels; and
the edge parallel or substantially parallel to the direction is an edge of the sub-pixel which is closest to an adjacent sub-pixel in a direction perpendicular or substantially perpendicular to the direction of the series of sub-pixels.
20. The plurality of sub-pixels of claim 13 , wherein
the plurality of sub-pixels includes at least two different sizes of sub-pixels;
the feedline is patterned around same sized sub-pixels in the series of sub-pixels;
the feedline is a same distance from sub-pixels in the series of sub-pixels; and
a closet separation between adjacent feedlines is greater than a separation between the feedline and the sub-pixels in the series of sub-pixels.