Modularized touch glass board and capacitive touch sensor including the same

A capacitive touch sensor comprising:

• a substrate, being dielectric, and an active touch area being defined in a central portion thereof;
• a first touch sensing layer, disposed on a first side of the substrate, having a first touch trace pattern and a first signal wire, the first touch trace pattern being formed in the active touch area of the substrate, the first signal wire being disposed outside the active touch area, the first touch trace pattern having first conductive bars which are arranged along a first direction, the first conductive bars being equally spaced out with a width of a first pitch, every adjacent two of the first conductive bars being separated by a first insulation gap, the first conductive bars being divided into multiple first electrode groups, the first electrode groups being spaced out with a width of a first electrode group pitch, each first electrode group comprising at least two of the first conductive bars, a first active electrode unit being formed by either one of the first conductive bars or selective more than one of the first conductive bars connected, and the first active electrode unit being electrically connected to the first signal wire;
• and
• a second touch sensing layer, disposed on a second side of the substrate, having a second touch trace pattern and a second signal wire, the second touch trace pattern being formed in the active touch area of the substrate, the second signal wire being disposed outside the active touch area, the second touch trace pattern having second conductive bars which are arranged along a second direction, the second conductive bars being equally spaced out with a width of a second pitch, every adjacent two of the second conductive bars being separated by a second insulation gap, the second conductive bars being divided into multiple second electrode groups, the second electrode groups being spaced out with a width of a second electrode group pitch, each second electrode group comprising at least two of the second conductive bars, a second active electrode unit being formed by either one of the second conductive bars or selective more than one of the second conductive bars connected, and the second active electrode unit being electrically connected to the second signal wire;
• wherein the first direction is orthogonal to the second direction, the width of the first electrode group pitch is the same as the width of the second electrode group pitch.