Touch sensor and touch display device including the same

A touch display device comprising:

• a touch sensor;
• and
• a display panel combined with the touch sensor,
• wherein the touch sensor comprises:
• first touch electrodes respectively coupled to first touch lines, the first touch electrodes being arranged on a first column;
• second touch electrodes respectively coupled to second touch lines, the second touch electrodes being arranged on a second column that is adjacent to the first column in a row direction;
• a first multiplexer to which the first touch lines are coupled;
• and
• a second multiplexer to which the second touch lines are coupled,
• wherein the first touch electrodes have respective areas that become increasingly smaller as they approach the first multiplexer along a first direction, and the second touch electrodes have respective areas that become increasingly smaller as they approach the second multiplexer along a second direction,
• wherein the first direction and the second direction are opposite to each other,
• wherein each of the first touch electrodes and the second touch electrodes has a rectangular shape having a first side and a second side parallel to the first side, or a rhombus shape having a first vertex and a second vertex,
• wherein the first touch electrodes are aligned such that their first sides or their first vertices are located on a first straight line extending in a column direction, and such that their second sides or their second vertices are differently offset from the first straight line,
• wherein the second touch electrodes are aligned such that their first sides or their first vertices are located on a second straight line extending in the column direction, and such that their either their second sides or second vertices are differently offset from the second straight line,
• wherein the first and second touch lines are between the first straight line and the second straight line,
• wherein the second sides or the second vertices of the first touch electrodes and the second sides or the second vertices of the second touch electrodes are in between the first straight line and the second straight line, and
• wherein the display panel comprises:
• a pixel area comprising pixels on a bottom of the first touch electrodes and the second touch electrodes;
• a pad area comprising pad electrodes;
• a first path selection area in which the first multiplexer is located;
• and
• a second path selection area in which the second multiplexer is located.

A touch sensor comprising:

• first touch electrodes respectively coupled to first touch lines, the first touch electrodes being respectively arranged on a first column and a second column that is adjacent to the first column in a row direction;
• second touch electrodes respectively coupled to second touch lines, the second touch electrodes being respectively arranged on the first column and the second column;
• a first multiplexer coupled to the first touch lines coupled to the first touch electrodes arranged on the first column;
• a second multiplexer coupled to the first touch lines coupled to the first touch electrodes arranged on the second column;
• a third multiplexer coupled to the second touch lines coupled to the second touch electrodes arranged on the first column;
• and
• a fourth multiplexer coupled to the second touch lines coupled to the second touch electrodes arranged on the second column,
• wherein the first touch electrodes have respective areas that become increasingly smaller as they approach the first multiplexer or the second multiplexer along a first direction,
• wherein the second touch electrodes have respective areas that become increasingly smaller as they approach the third multiplexer or the fourth multiplexer along a second direction,
• wherein the first direction and the second direction are opposite to each other,
• wherein each of the first touch electrodes and the second touch electrodes has a rectangular shape having a first side and a second side parallel to the first side,
• wherein the first touch electrodes on the first column and the second touch electrodes on the first column are aligned such that their first sides are located on a first straight line extending in a column direction, and such that their second sides are differently offset from the first straight line,
• wherein the first touch electrodes on the second column and the second touch electrodes on the second column are aligned such that their first sides are located on a second straight line extending in the column direction, and such that their second sides are differently offset from the second straight line,
• wherein the first and second touch lines are between the first straight line and the second straight line, and
• wherein the second sides of the first touch electrodes and the second sides of the second touch electrodes are in between the first straight line and the second straight line.