Display devices
A display device including 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 and comprising 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, wherein each of the 1-th to i-th electrodes is extended in a first direction;
a second electrode group disposed in the sensing area and comprising a plurality of electrodes, wherein each of the plurality of electrodes is extended in a second direction crossing the first direction; and
a first signal line group disposed in the line area, electrically connected to the first electrode group, and comprising 1-th to k-th (where k is a natural number and less than i) signal lines;
each of the 1-th to k-th signal lines of the first signal line group comprises:
a first extension portion extended in the first direction and disposed between the sensing area and the pad area in the second direction; and
an inflection portion extended from the first extension portion and disposed outside a corner area of the sensing area;
wherein the 1-th to k-th signal lines are sequentially connected to some electrodes of the 1-th to i-th electrodes;
the first extension 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; and
an end portion of the inflection portion of the 1-th signal line extending in the second direction is directly connected to a corresponding electrode extended in the first direction of the 1-th to i-th electrodes along the end portion of the inflection portion of the 1-th signal line.
2. The display device of claim 1 , wherein:
n-th to k-th signal lines of the 1-th to k-th signal lines further comprise a second extension portion extended in the second direction;
n is a natural number and more than 1 and less than k;
the inflection portion of the n-th to k-th signal lines are disposed between the first extension portion and the second extension portion; and
the second extension portions of the n-th to k-th signal lines have the same width.
3. 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 extension portion in the second direction to partially overlap the pad area.
4. The display device of claim 3 , wherein the pad portions of the 1-th to k-th signal lines have the same width.
5. The display device of claim 1 , wherein the display panel comprises:
a base layer;
a transistor on the base layer;
a display element on the base layer and electrically connected to the transistor; and
an encapsulation layer on the base layer and overlapped with the display element; and
the input sensor is directly disposed on the encapsulation layer.
6. The display device of claim 1 , wherein the corner area of the sensing area has a curved shape.
7. The display device of claim 1 , wherein the inflection portion has a curved shape or at least one inflection point at which an extension direction is changed.
8. 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 and comprising 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, wherein each of the 1-th to i-th electrodes is extended in a first direction;
a second electrode group disposed in the sensing area and comprising a plurality of electrodes, wherein each of the plurality of electrodes is extended in a second direction crossing the first direction; and
a first signal line group disposed in the line area, electrically connected to the first electrode group, and comprising 1-th to k-th (where k is a natural number and less than i) signal lines;
each of the 1-th to k-th signal lines of the first signal line group comprises:
a first extension portion extended in the first direction and disposed between the sensing area and the pad area in the second direction; and
an inflection portion extended from the first extension portion and disposed outside a corner area of the sensing area;
wherein the 1-th to k-th signal lines are sequentially connected to some electrodes of the 1-th to i-th electrodes;
the first extension 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; and
the inflection portion of the 1-th signal line is directly connected to a corresponding electrode of the 1-th to i-th electrodes,
wherein:
n-th to k-th signal lines of the 1-th to k-th signal lines further comprise a second extension portion extended in the second direction;
n is a natural number and more than 1 and less than k;
the inflection portion of the n-th to k-th signal lines are disposed between the first extension portion and the second extension portion; and
the second extension portions of the n-th to k-th signal lines have the same width, and
wherein the inflection portion comprises:
a first portion extending from the first extension portion and having a width different from a width of the first extension portion;
a second portion extending from the first portion and having a width gradually varying in a direction that is away from the first portion; and
a third portion extending from the second portion and having a width different from the width of the second portion.
9. The display device of claim 8 , wherein the third portions of the 1-th to k-th signal lines have the same width.
10. The display device of claim 8 , wherein the third portions of each of the 1-th to k-th signal lines have a constant width.
11. The display device of claim 8 , wherein the input sensor further comprises a connection electrode connecting the third portion of the 1-th signal line to a corresponding electrode of the 1-th to i-th electrodes.
12. The display device of claim 11 , wherein:
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 third portion of the 1-th signal line and the corresponding electrode are connected to the connection electrode through connection contact holes passing through the insulation layer.
13. The display device of claim 12 , wherein:
the input sensor further comprises a dummy pattern disposed between the corresponding electrode and the third portion of the 1-th signal line on a plane;
the dummy pattern is spaced apart from each of the corresponding electrode and the third portion of the 1-th signal line; and
the dummy pattern overlaps the connection electrode.
14. The display device of claim 8 , wherein:
each of the n-th to k-th signal lines further comprises a fourth portion extending from the third portion and between the third portion and the second extension portion; and
the fourth portion has a width that gradually increases in a direction that is away from the third portion.
15. The display device of claim 14 , wherein the inflection portion of each of the 1-th to k-th signal lines has a constant width.
16. The display device of claim 15 , wherein a width of an area of the line area in which the third 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 second extension portion of the n-th to k-th signal lines are disposed are the same.
17. The display device of claim 16 , wherein the second extension portion has a width greater than that of the third portion.