Input sensing circuit and display device including the same

A display device comprising:

• a display panel comprising a light emitting element layer that comprises a plurality of light emitting elements, and a sealing layer that seals the plurality of light emitting elements;
• and
• an input sensing circuit on the display panel,
• wherein
• the input sensing circuit comprises:
• a plurality of first sensor groups extending in a first direction and comprising a plurality of first sensors;
• a plurality of second sensor groups extending in a second direction and comprising a plurality of second sensors, the second direction crossing the first direction;
• a first line and a second line electrically connected to different first sensor groups, respectively, among the plurality of first sensor groups;
• and
• a third line and a fourth line electrically connected to different second sensor groups, respectively, among the plurality of second sensor groups,
• wherein
• the first line comprises:
• a first lower line having a first length;
• and
• a first upper line having a second length longer than the first length, the first upper line being electrically connected to the first lower line in a plurality of first contact areas,
• wherein
• the second line comprises:
• a second lower line having a third length shorter than the first length;
• and
• a second upper line having a fourth length longer than the third length and shorter than the second length, the second upper line being electrically connected to the second lower line in a plurality of second contact areas,
• wherein a length of a first single-layer area of the first line including only the first upper line is different from a length of a second single-layer area of the second line including only the second upper line, and
• wherein a difference between the first length and the second length is less than a difference between the third length and the fourth length.

An input sensing circuit comprising:

• a base layer comprising a sensor area and a wiring area around the sensor area;
• a plurality of connection patterns on the sensor area;
• a plurality of lower lines on the wiring area and comprising a first lower line having a first length and a second lower line having a second length shorter than the first length;
• an insulation layer on the base layer, to cover the plurality of connection patterns and the plurality of lower lines, and to define a plurality of first contact holes exposing at least a portion of the first lower line and a plurality of second contact holes exposing at least a portion of the second lower line;
• a plurality of sensors on the insulation layer, overlapping the sensor area, and electrically connected to each other by the plurality of connection patterns;
• and
• a plurality of upper lines on the insulation layer and comprising a first upper line overlapping the first lower line and having a third length longer than the first length, and a second upper line overlapping the second lower line and having a fourth length longer than the second length and shorter than the third length,
• wherein the first lower line and the first upper line are electrically connected through the plurality of first contact holes and the second lower line and the second upper line are electrically connected through the plurality of second contact holes,
• the plurality of sensors is electrically connected to the plurality of upper lines,
• the plurality of lower lines is spaced apart from the sensor area with portions of the plurality of upper lines interposed therebetween when viewed on a plan view, and
• a difference between the third length and the first length is less than a difference between the fourth length and the second length.