Display device

Patent metadata

Field	Value
Publication number	US-10852602-B2
Application number	US-201916377324-A
Country	US
Kind code	B2
Filing date	Apr 8, 2019
Priority date	Apr 12, 2018
Publication date	Dec 1, 2020
Grant date	Dec 1, 2020

Abstract

A display device includes a pixel electrode, signal lines, lines, and inter-line connections. The signal lines supply an image signal to the pixel electrode. The lines are arranged such that the lines at least partly overlap the signal lines, respectively, via an insulating film but do not overlap the pixel electrode. The inter-line connections interconnect the lines. The inter-line connections are arranged at intervals in a direction of extension of the lines.

First claim

The invention claimed is:

1. A display device comprising:
pixel electrodes;
signal lines that supply image signals to the pixel electrodes, wherein each of the pixel electrodes receives an image signal from one of the signal lines;
lines arranged such that the lines at least partly overlap the signal lines, respectively, via a first insulating film and do not overlap the pixel electrodes;
inter-line connections interconnecting the lines, the inter-line connections being arranged at intervals in a direction of extension of the lines;
a common electrode arranged such that the common electrode at least partly overlaps the pixel electrodes via a second insulating film; and
position detection electrodes defined by divided portions of the common electrode, the position detection electrodes creating capacitance between the position detection electrodes and a position input object that makes position input and detecting a position of input made by the position input object, wherein
the lines are connected to the position detection electrodes to supply position detection signals and common signals to the position detection electrodes in a time-division manner, and
the common signals set the position detection electrodes to a reference potential.

2. The display device according to claim 1 , wherein some of the lines interconnected through the inter-line connections are connected to one of the position detection electrodes.

3. The display device according to claim 1 , wherein each of the signal lines or each of the lines includes a line body and a wider portion wider than the line body.

4. The display device according to claim 3 , wherein each of the position detection electrodes includes an opening encircling the wider portion.

5. The display device according to claim 1 , wherein each of the inter-line connections includes at least one first connection portion and at least one second connection portion connecting the first connection portion to one of the lines, and
the at least one second connection portion is narrower than the at least one first connection portion.

6. The display device according to claim 5 , wherein each of the position detection electrodes includes an opening encircling the at least one second connection portion.

7. The display device according to claim 5 , wherein
each of the lines includes divided lines arranged such that each of the inter-line connections is sandwiched between the divided lines in the direction of extension of the lines, and
the at least one second connection portion includes second connection portions connected to the divided lines adjacent to the inter-line connection in the direction of extension of the lines, respectively.

8. The display device according to claim 5 , wherein each of the lines includes:
divided lines arranged such that each of the inter-line connections is sandwiched between the divided lines in the direction of extension of the lines; and
a divided line connection interconnecting the divided lines adjacent to each other, and
the at least one second connection portions is connected to the divided line connection.

9. The display device according to claim 1 , wherein
the position detection electrodes are arranged at intervals, and
the inter-line connections are each located between the position detection electrodes adjacent to each other such that the inter-line connections do not overlap the position detection electrodes.

10. The display device according to claim 9 , further comprising scanning lines extending to intersect the signal lines and the lines, wherein
the scanning lines are arranged at intervals such that at least the pixel electrodes are sandwiched between the scanning lines,
the inter-line connections are arranged such that each of the inter-line connections is sandwiched between one of the pixel electrodes and one of the scanning lines,
the display device further includes an electrode overlapping dummy connection portion connected to one of the lines,
the electrode overlapping dummy connection portion overlaps one of the position detection electrodes and is sandwiched between another one of the pixel electrodes and another one of the scanning lines.

11. The display device according to claim 1 , wherein
the position detection electrodes are arranged at intervals, and
a first group of the inter-line connections are arranged to overlap the position detection electrodes and a second group of the inter-line connections are each between the position detection electrodes adjacent to each other and do not overlap the position detection electrodes.

12. The display device according to claim 11 , further comprising scanning lines extending to intersect the signal lines and the lines, wherein
the scanning lines are arranged at intervals such that at least the pixel electrodes are sandwiched between the scanning lines,
the pixel electrodes are arranged at intervals in a direction of extension of the signal lines, and
the inter-line connections are arranged such that each of the inter-line connections is sandwiched between one of the pixel electrodes and one of the scanning lines and a series of one of the pixel electrodes, one of the scanning lines, and one of the inter-line connections are repeatedly arranged in the direction of extension of the signal lines.

13. The display device according to claim 1 , further comprising scanning lines extending to intersect the signal lines and the lines, wherein
the scanning lines are arranged at intervals such that at least the pixel electrodes are sandwiched between the scanning lines,
the inter-line connections are arranged such that each of the inter-line connections is sandwiched between one of the pixel electrodes and one of the scanning lines,
the lines include two lines that are adjacent to each other and interconnected through one of the inter-line connections and another two lines that are adjacent to each other and not interconnected, and
the display device further includes a dummy connection portion connected to one of the other two lines that are adjacent to each other and not interconnected, the dummy connection portion being sandwiched between another one of the pixel electrodes and another one of the scanning lines.

14. The display device according to claim 13 , wherein the dummy connection portions are arranged such that a series of one of the pixel electrodes, one of the scanning lines, and one of the dummy connection portions are repeatedly arranged in a direction of extension of the signal lines.

Assignees

• Sharp Kk

Inventors

• Yoshida Masahiro

Classifications

• G02F1/136263

  Line defects · CPC title

• G02F1/136254

  Checking; Testing · CPC title

• G02F1/136272

  Auxiliary lines · CPC title

• G09G3/3648 Primary

  using an active matrix (G09G3/367 - G09G3/3696 take precedence) · CPC title

• G02F1/134309

  characterised by their geometrical arrangement · CPC title