TECHNICAL FIELD OF DISCLOSURE

The present disclosure relates to the field of touch technologies, and more particularly to a touch electrode structure and a capacitive touch system.

BACKGROUND OF DISCLOSURE

In a capacitive touch system, a touch signal or a hover signal on a touch panel is sensed by a plurality of touch electrodes. The touch electrodes include a plurality of driving electrodes and a plurality of sensing electrodes. The driving electrodes and the sensing electrodes are formed on a substrate. When the substrate includes four layers of wires, the substrate is a four-layer board. When the substrate includes two layers of wires, the substrate is a two-layer board.

Since the number of the touch electrodes is large, vias and connecting wires are required to connect two adjacent ones of the touch electrodes together. When the substrate is a two-layer board, the vias and the connecting wires can only be formed on one surface of the substrate. Occupied space on the substrate is large, and thus space which can be used is decreased.

Therefore, there is a need to solve the above-mentioned problem in the prior art.

SUMMARY OF DISCLOSURE

An objective of the present disclosure is to provide a touch electrode structure and a capacitive touch system capable of solving the problem in the prior art.

The touch electrode structure of the present disclosure includes: a substrate; a plurality of first electrode series formed on a first surface of the substrate in a first direction, wherein each of the first electrode series includes a plurality of first electrodes; a plurality of second electrode series formed on the first surface of the substrate in a second first direction, wherein each of the second electrode series includes a plurality of second electrodes; and at least one connecting wire formed on a second surface of the substrate, wherein each of the second electrode series includes at least one electrode group, the at least one electrode group includes two of the second electrodes, the two of the second electrodes are electrically connected to each other on the first surface of the substrate, and at least one of the two of the second electrodes is electrically connected to, through the at least one connecting wire, one of the second electrodes adjacent to the at least one of the two of the second electrodes.

The capacitive touch system of the present disclosure includes a touch panel including a touch electrode structure. The touch electrode structure includes: a substrate; a plurality of first electrode series formed on a first surface of the substrate in a first direction, wherein each of the first electrode series includes a plurality of first electrodes; a plurality of second electrode series formed on the first surface of the substrate in a second first direction, wherein each of the second electrode series includes a plurality of second electrodes; and at least one connecting wire formed on a second surface of the substrate, wherein each of the second electrode series includes at least one electrode group, the at least one electrode group includes two of the second electrodes, the two of the second electrodes are electrically connected to each other on the first surface of the substrate, and at least one of the two of the second electrodes is electrically connected to, through the at least one connecting wire, one of the second electrodes adjacent to the at least one of the two of the second electrodes; and a touch detection unit electrically connected to the touch electrode structure and configured to detect a touch signal or a hover signal on the touch electrode structure.

In the touch electrode structure and the capacitive touch system of the present disclosure, since at least one electrode group of each second electrode series includes two second electrodes which are electrically connected to each other, a connecting wire is not required between the two second electrodes of the at least one electrode group. The number of the connecting wires and the number of the vias can be saved. Furthermore, the present disclosure provides several types of patterns of the second electrodes, an advantage that a wiring layout is simple or that touch accuracy and linearity can be increased can be reached.

