Capacitive touch panel and detecting method thereof

Abstract

The present invention discloses a capacitive touch panel and a detecting method thereof. The capacitive touch panel comprises a board body and a plurality of sensing units; wherein a side of the boardbody has a touch area; and the plurality of sensing units are disposed side by side on the other side of the board body and correspondingly located in the touch area, and a gap is maintained betweenthe adjacent sensing units; wherein each of the sensing units includes a plurality of alternating electrical insulation interlacing first and second electrodes. Compared with a prior-art capacitive touch panel of the same aspect ratio, the problem that the multiple touch objects are touched by the same first or second electrode at the same time and the non common ground effect is doubled due to the large touch area can be eliminated.

Description

technical field [0001] The invention relates to a capacitive touch panel, in particular to a capacitive touch panel with an improved sensing electrode structure. Background technique [0002] A capacitive touch panel is installed on an electronic device as an input device of the electronic device; if Figure 7 As shown, the capacitive touch panel 50 is mainly provided with a single sensing unit 52 under a protective layer 51, and as shown Figure 8 As shown, the sensing unit 52 includes a plurality of first electrodes 521 and a plurality of second electrodes 522, as shown in FIG. Figure 9 As shown, the plurality of first and second electrodes 521 and 522 are electrically insulated and interlaced with each other. [0003] see Figure 10 As shown, the capacitive touch panel 50 will cooperate with an external controller 60 to form a touch module, wherein the controller 60 is respectively connected to one end of each of the first electrodes 521 and to each of the second elect...

AI Technical Summary

Problems solved by technology

[0004] However, the electronic device is likely to be poorly grounded due to the difference in assembly, and the situation of non-common ground effect (floating) is derived. For the conventional capacitive touch panel 50, the ability to resist the non-common ground effect is poor. It is easy to cause the problem that the accuracy of the coordinate recognition of the touched object is reduced

In addition, when the user has poor contact with the ground and touches the capacitive touch panel 50, a non-common ground effect will also be formed with the capacitive touch panel 50, thereby affecting the contact between the finger and the capacitive touch panel. Capacitance change between 50

[0005] In addition, for electronic devices with special applications that require a large-size capacitive touch panel, since a large-size capacitive touch panel is smaller than a smaller-sized capacitive touch panel, it is easier to encounter multiple touch objects simultaneously. In the case of the same electrode, because the coupling area between the touch object and the electrode is positively correlated with the non-common ground effect, the contact of multiple touch objects at the same time will double the original non-common ground effect and affect the conventional capacitive touch. The control board 50 makes the coordinate recognition accuracy worse

[0006] To sum up, the conventional capacitive touch panel 50 needs to be further improved to solve the problem of poor coordinate recognition accuracy caused by the non-common ground effect

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