Display devices
A display device includes an input sensor having sensing electrodes disposed in a sensing area and signal lines. Each of the signal lines is connected to a corresponding electrode of the sensing electrodes and disposed in the line area. One signal line of the signal lines includes a first portion having a constant width, a second portion disposed outside a corner area of the sensing area, extending from the first portion, and having a width gradually increasing in a direction that is away from the first portion, a third portion extending from the second portion and having a width gradually varying in a direction that is away from the second portion, and a fourth portion extending from the third portion and having a constant width.
1. A display device comprising:
a display panel; and
an input sensor disposed above the display panel and comprising a sensing area and a line area,
wherein:
the input sensor comprises:
a first electrode group disposed in the sensing area;
a second electrode group disposed in the sensing area and crossing the first electrode group; and
a first signal line group disposed in the line area and electrically connected to the first electrode group; and
each of signal lines of the first signal line group comprises:
a first portion having a constant width;
a second portion extending from the first portion and having a width gradually increasing in a direction that is away from the first portion;
a third portion extending from the second portion and having a width gradually varying in a direction that is away from the second portion; and
a fourth portion extending from the third portion and having a constant width;
the first electrode group comprises 1-th to i-th (where i is a natural number of 2 or more) electrodes arranged away from a pad area defined at one side of the line area in a first direction and extending in a second direction crossing the first direction;
the signal lines of the first signal line group comprise 1-th to k-th (where k is the largest natural number of natural numbers equal to or less than i/2) signal lines;
the 1-th to k-th signal lines are sequentially connected to even-numbered or odd-numbered electrodes of the 1-th to i-th electrodes;
the third portion of the 1-th signal line has a width gradually increasing as the third portion of the 1-th signal line is adjacent to the fourth portion of the 1-th signal line; and
the third portion of the k-th signal line has a width gradually decreasing as the third portion of the k-th signal line is adjacent to the fourth portion of the k-th signal line.
2. The display device of claim 1 , wherein the first portions of the 1-th to k-th signal lines have widths that increase from the 1-th signal line toward the k-th signal line.
3. The display device of claim 1 , wherein the fourth portions of the 1-th to k-th signal lines have the same width.
4. The display device of claim 1 , wherein the input sensor further comprises a connection electrode connecting the fourth portion of the 1-th signal line to a corresponding electrode of the 1-th to i-th electrodes.
5. The display device of claim 1 , wherein the fourth portion of the 1-th signal line is directly connected to a corresponding electrode of the 1-th to i-th electrodes.
6. The display device of claim 1 , wherein each of the 1-th to k-th signal lines further comprises a pad portion extending from the first portion in the first direction to partially overlap the pad area.
7. The display device of claim 6 , wherein the pad portions of the 1-th to k-th signal lines have the same width.
8. The display device of claim 1 , wherein:
the k-th signal line further comprises an extension portion extending from the fourth portion;
the extension portion comprises at least fifth, sixth, and last portions distinguished from each other;
a width of an area of the line area in which the fourth portions of the 1-th to k-th signal lines are disposed and a width of an area of the line area in which the last portion is disposed are substantially the same; and
the last portion is farthest away from the fourth portion of the k-th signal line.
9. The display device of claim 1 , wherein the second portion is disposed outside a corner area of the sensing area.
10. The display device of claim 9 , wherein the second portion has a curved shape or at least one inflection point at which an extension direction is changed.
11. A display device comprising:
a display panel; and
an input sensor disposed above the display panel and comprising a sensing area and a line area,
wherein:
the input sensor comprises:
a first electrode group disposed in the sensing area;
a second electrode group disposed in the sensing area and crossing the first electrode group; and
a first signal line group disposed in the line area and electrically connected to the first electrode group;
each of signal lines of the first signal line group comprises:
a first portion having a constant width;
a second portion extending from the first portion and having a width gradually increasing in a direction that is away from the first portion;
a third portion extending from the second portion and having a width gradually varying in a direction that is away from the second portion; and
a fourth portion extending from the third portion and having a constant width;
the first electrode group comprises 1-th to i-th (where i is a natural number of 2 or more) electrodes arranged away from a pad area defined at one side of the line area in a first direction and extending in a second direction crossing the first direction;
the signal lines of the first signal line group comprise 1-th to k-th (where k is the largest natural number of natural numbers equal to or less than i/2) signal lines;
the 1-th to k-th signal lines are sequentially connected to even-numbered or odd-numbered electrodes of the 1-th to i-th electrodes;
the input sensor further comprises a connection electrode connecting the fourth portion of the 1-th signal line to a corresponding electrode of the 1-th to i-th electrodes;
the connection electrode and the 1-th signal line are disposed with an insulation layer therebetween;
the insulation layer is disposed below the 1-th signal line and the corresponding electrode; and
each of the fourth portion of the 1-th signal line and the corresponding electrode is connected to the connection electrode through connection contact holes passing through the insulation layer.
12. The display device of claim 11 , wherein:
the input sensor further comprises a dummy pattern disposed between the corresponding electrode and the fourth portion of the 1-th signal line on the plane;
the dummy pattern is spaced apart from each of the corresponding electrode and the fourth portion of the 1-th signal line; and
the dummy pattern overlaps the connection electrode.
13. A display device comprising:
a display panel; and
an input sensor disposed above the display panel and comprising a sensing area and a line area,
wherein:
the input sensor comprises:
a first electrode group disposed in the sensing area;
a second electrode group disposed in the sensing area and crossing the first electrode group; and
a first signal line group disposed in the line area and electrically connected to the first electrode group;
each of signal lines of the first signal line group comprises:
a first portion having a constant width;
a second portion extending from the first portion and having a width gradually increasing in a direction that is away from the first portion;
a third portion extending from the second portion and having a width gradually varying in a direction that is away from the second portion; and
a fourth portion extending from the third portion and having a constant width;
the first electrode group comprises 1-th to i-th (where i is a natural number of 2 or more) electrodes arranged away from a pad area defined at one side of the line area in a first direction and extending in a second direction crossing the first direction;
the signal lines of the first signal line group comprise 1-th to k-th (where k is the largest natural number of natural numbers equal to or less than i/2) signal lines;
the 1-th to k-th signal lines are sequentially connected to even-numbered or odd-numbered electrodes of the 1-th to i-th electrodes; and
each of the 2-th to k-th signal lines further comprises:
a fifth portion extending from the fourth portion and having a width that gradually increases in a direction that is away from the fourth portion; and
a sixth portion extending from the fifth portion and having a constant width.
14. The display device of claim 13 , wherein the sixth portions of the 2-th to k-th signal lines have the same width.
15. The display device of claim 13 , wherein a width of an area of the line area in which the fourth portions of the 1-th to k-th signal lines are disposed and a width of an area of the line area in which the sixth portions of the 2-th to k-th signal lines are disposed are substantially the same.
16. The display device of claim 13 , wherein the sixth portion has a width greater than that of the fourth portion.