Capacitive touch panel and its detection method

Abstract

The invention discloses a capacitive touch panel and a detection method thereof. The capacitive touch panel includes a board body and a plurality of sensing units; one side of the board body has a touch area; and the plurality of sensing units The units are adjacently arranged on the other side of the board, and are correspondingly located in the touch area, and there is a gap between the adjacent sensing units; wherein each sensing unit includes a plurality of alternating electrical insulation interleaved In this way, compared with the capacitive touch panel of the prior art with the same aspect ratio, the present invention will not have too long first or second electrodes, which can eliminate the problem caused by multiple touch objects at the same time. Touching the same first or second electrode causes a double non-common ground effect due to the large touch area.

Description

Technical field [0001] The present invention relates to a capacitive touch panel, particularly an induced electrode structure, improved capacitive touch panel. Background technique [0002] The capacitive touch panel is used to mount an electronic device as an input device of the electronic device; Figure 7 As shown, the capacitive touch panel 50 is mainly provided with a single sensing unit 52 below the protective layer 51, and then Figure 8 As shown, the inductive unit 52 includes a plurality of first electrodes 521 and a plurality of second electrodes 522, such as Figure 9 As shown, the plurality of first and second electrodes 521, 522 are electrically insulated from each other. [0003] See Figure 10 As shown, the capacitive touch panel 50 can be connected to an external controller 60 to form a touch module, wherein the controller 60 is respectively associated with one end of each of the first electrodes 521 and the second electrode 522. One end electrical connection; When th...

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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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