Capacitive touch panel with single sensing layer

Abstract

A capacitive touch panel with single sensing layer has a substrate. The substrate has the single sensing layer formed thereon. The sensing layer has multiple electrode sets. Each electrode set has multiple driving electrode rows and multiple receiving electrode rows arranged alternately. The multiple driving electrode rows of one electrode set have different driving electrodes, but different electrode sets have the same multiple driving electrode rows. The multiple receiving electrode rows of one electrode set are consisted of multiple same receiving electrodes, but different electrode sets have different receiving electrode rows. Therefore, using less contacts can also maintained the area and the solution so that the pins on the IC are also decreased. Thus, the volume of the IC is reduced and the packaging cost is also reduced.

Description

technical field [0001] The invention relates to a single-layer capacitive touch panel, in particular to a touch panel used as an input device in an electronic device. Background technique [0002] Single-layer capacitive touch panel is one of the widely used input devices, please refer to Figure 5 As shown, the single-layer capacitive touch panel of the prior art is provided with the sensing layer 40 on one side surface of the substrate 50, which has a plurality of driving electrode rows and receiving electrode rows arranged alternately along the first direction, and each driving The electrode row and each receiving electrode row are located on the same plane. Each driving electrode row has a plurality of driving electrode units arranged along the second direction, such as Figure 5 Shown are the first driving electrode unit T1 to the fifth driving electrode unit T5, and the same driving electrode units of each driving electrode row are connected to the same contact point, ...

AI Technical Summary

Problems solved by technology

[0003] However, although the resolution can be improved through the structure of the prior art, it also relatively increases the number of required contacts. For example, only 13 contacts are required for 5*8=40 pixels, but it is required for 5*16=80 pixels. 21 contacts, thereby increasing the number of pins required by the integrated circuit unit (IC). The increase in the number of pins will make the IC volume larger and increase the packaging cost of the IC. Therefore, the prior art still has its needs to be improved.

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