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Touch Panels and Electronics

A touch panel and electronic device technology, which is applied to the input/output process of electrical digital data processing, instruments, and data processing, etc., can solve the problems of signal attenuation, increase and decrease the touch sensitivity of the touch panel, and reduce the manufacturing cost. The effect of reducing and improving the driving ability

Active Publication Date: 2015-12-02
INNOLUX CORP +1
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Problems solved by technology

However, due to the increase in the number of sensing electrodes in the sensing area due to the expansion of the panel size, the resistance-capacitance loading (RCloading) of the sensing line increases. The above-mentioned resistance-capacitance loading effect will cause signal attenuation, making the sensing element (SensorIC ) is more difficult to drive, and will reduce the touch sensitivity of the touch panel

Method used

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  • Touch Panels and Electronics
  • Touch Panels and Electronics
  • Touch Panels and Electronics

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Embodiment Construction

[0032] Hereinafter, each embodiment is described in detail and examples accompanied by drawings are used as a reference basis of the present invention. In the drawings or descriptions in the specification, the same figure numbers are used for similar or identical parts. And in the drawings, the shape or thickness of the embodiments may be enlarged, and marked for simplicity or convenience. Furthermore, parts of the components in the drawings will be described separately. It should be noted that the components not shown or described in the drawings are forms known to those skilled in the art.

[0033] Figure 1a It is a top view of a touch panel 500a according to an embodiment of the present invention. Figure 1b for along Figure 1a Sectional view of A-A' tangent. The touch panel in the embodiment of the present invention is a capacitive touch panel. Please refer to Figure 1a and Figure 1b , the touch panel 500a includes a substrate 200 . In an embodiment of the present...

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Abstract

The invention provides a touch panel and an electronic device. The touch panel comprises a substrate, a plurality of first sensing electrodes, a sensing element and a dielectric layer, wherein the substrate is provided with a first sensing area and a second sensing area, the first sensing electrodes are arranged in the first sensing area and the second sensing area, the sensing element is arranged on the substrate and coupled with the first sensing electrodes, an input signal of the sensing element is sequentially transmitted to the first sensing electrodes in the first sensing area and the second sensing area, the dielectric layer covers the first sensing electrodes, and the dielectric layer in the first sensing area is thinner than the dielectric layer in the second sensing area. The touch panel is capable of preventing a sensing signal from distortion caused by influence of capacitor loading, resistor-capacitor loading on a touch sensing circuit is reduced on the premise that number of the sensing electrodes is not lowered, and driving capability of the sensing element and sensing characteristics of the touch panel are improved.

Description

technical field [0001] The present invention relates to a touch panel, in particular to a capacitive touch panel with high sensing sensitivity. Background technique [0002] Touch panels have been widely used in mobile phones (smart phones), personal digital assistants (PDAs), global satellite positioning systems (GPS), handheld game consoles, tablet computers and other electronic products to replace input interfaces such as mice and keyboards device. The capacitive touch panel has the advantages of multi-touch, anti-fouling, fire prevention, anti-static and dust, scratch-resistant, fast response, etc., and is the mainstream technology of the touch panel today. At present, the capacitive touch panel has developed into a large size due to the application trend. However, due to the increase in the number of sensing electrodes in the sensing area due to the expansion of the panel size, the resistance-capacitance loading (RCloading) of the sensing line increases. The above-men...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
Inventor 陈新立
Owner INNOLUX CORP
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