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US 10,895,945 B2Granted
Touch sensor and touch display device having the same
AssigneeSamsung Display Co., Ltd.
InventorSeung Ho Baek
Life of this patent
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Abstract
A touch sensor includes: a plurality of sensor electrodes formed in a touch active region to form a plurality of sensor patterns; a plurality of sensor lines coupled to the respective sensor electrodes; a touch driver at one side of the touch active region, the touch driver being electrically coupled to the sensor electrodes respectively through the sensor lines; and dummy electrodes respectively arranged at one sides of the sensor electrodes, corresponding to the sensor lines.
Claims15
A touch sensor comprising:
- a plurality of sensor electrodes arranged in rows and columns and formed in a touch active region to form a plurality of sensor patterns;
- a plurality of sensor lines electrically and physically connected to the respective sensor electrodes;
- a touch driver at one side of the touch active region, the touch driver being electrically coupled to the sensor electrodes respectively through the sensor lines;
- and
- dummy electrodes respectively arranged at one side of each of the columns of the sensor electrodes, corresponding to the sensor lines,
- wherein each of the sensor lines includes a first line part extending in a first direction from each of the sensor electrodes, wherein each of the dummy electrodes includes a plurality of dummy patterns disposed symmetrically on both sides of the first line part,
- wherein the plurality of sensor electrodes do not overlap each other in a thickness direction,
- wherein the plurality of dummy patterns include upper dummy patterns at an upper side of the first line part and lower dummy patterns at a lower side of the first line part, corresponding to the respective upper dummy patterns, and
- wherein the upper dummy pattern corresponds to a shape obtained by cutting a center of the sensor pattern in the first direction, and the lower dummy pattern has a shape symmetrical to the upper dummy pattern corresponding to the lower dummy pattern with respect to the first line part.
6 more elements
A touch display device comprising:
- a touch sensor configured to recognize a touch, based on a touch capacitance generated by an approach or touch of a touch object;
- and
- a display panel combined with the touch sensor,
- wherein the touch sensor includes:
- a plurality of sensor electrodes arranged in rows and columns in a touch active region to form a plurality of sensor patterns;
- a plurality of sensor lines electrically and physically connected to the respective sensor electrodes;
- a touch driver at one side of the touch active region, the touch driver being electrically coupled to the sensor electrodes respectively through the sensor lines;
- and
- a dummy electrode including a plurality of dummy patterns respectively arranged at one side of each of the columns of the sensor electrodes, corresponding to the sensor lines,
- wherein each of the sensor lines includes a first line part extending in a first direction from each of the sensor electrodes,
- wherein each of the dummy patterns is disposed symmetrically on both sides of the first line part,
- wherein a number of dummy patterns is decreased as the dummy patterns become more adjacent to the touch driver,
- wherein the plurality of sensor electrodes do not overlap each other in a thickness direction,
- wherein the plurality of dummy patterns include upper dummy patterns at an upper side of the first line part and lower dummy patterns at a lower side of the first line part, corresponding to the respective upper dummy patterns, and
- wherein the upper dummy pattern corresponds to a shape obtained by cutting a center of the sensor pattern in the first direction, and the lower dummy pattern has a shape symmetrical to the upper dummy pattern corresponding to the lower dummy pattern with respect to the first line part.
12 more elements
Dependencies are inferred from the claim text.