A touch sensor includes first sensing lines and second sensing lines. The first sensing lines are arranged in a first direction, and each of the first sensing lines includes one or more first mesh electrode. The second sensing lines are arranged in a second direction and intersecting the plurality of first sensing lines, and each of the second sensing lines includes one or more second mesh electrode. Each of the first mesh electrode and the second mesh electrode includes conductive frames and bridging electrodes. The conductive frames are apart from each other, wherein each of the conductive frames has an aperture. Each of the bridging electrodes has two ends connected to two respective ones of the conductive frames, and a junction of any one of the bridging electrodes and the respective conductive frames is a three-way junction.