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Touch panel

A touch panel, non-contact technology, used in instruments, electrical digital data processing, and data processing input/output processes, etc., can solve problems such as excessive parasitic capacitance, and achieve low resistivity and good touch sensitivity. Effect

Inactive Publication Date: 2012-06-06
WINTEK CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a touch panel to solve the problem of excessive parasitic capacitance in the conventional touch panel design

Method used

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Embodiment Construction

[0036] It can be seen from the prior art that in the conventional touch panel design, the parasitic capacitance of the connecting line intersecting region increases with the increase of the area of ​​the intersecting region, and affects the sensing sensitivity of the touch panel. In addition, the impedance of the connection line is substantially inversely proportional to the cross-sectional area of ​​the connection line. To reduce the parasitic capacitance, reducing the line width of the connection line will inevitably result in a reduction in the cross-sectional area and an increase in transmission impedance. In short, conventional touch panels cannot overcome the problems of high parasitic capacitance and high transmission impedance.

[0037] figure 2 Shown is the touch panel of the first embodiment of the present invention. Please refer to figure 2 , the touch panel 200 includes at least one first sensing series 210 and at least one second sensing series 220 . The firs...

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Abstract

The invention relates to a touch panel which comprises at least one first sensing serial and at least one second sensing serial, wherein the first sensing serials are arrayed along a first direction, each first sensing serial comprises a plurality of first sensing pads and at least one first connecting pattern, and the first sensing pads are electrically connected; each first connecting pattern is arranged between two adjacent first sensing pads; the resistivity of each first connecting pattern is lower than that of each first sensing pad; the second sensing serials are not in contact with the first sensing serials and arrayed along a second direction, and the first direction and the second direction have an intersection; each second sensing serial comprises a plurality of second sensing pads and at least one second connecting pattern; the second sensing pads are arranged among the first sensing pads and electrically connected; each connecting pattern is arranged between two adjacent sensing pads; and the resistivity of each connecting pattern is lower than that of each second sensing pad.

Description

technical field [0001] The present invention relates to a touch panel, and in particular to a touch panel with high sensing sensitivity. Background technique [0002] In recent years, with the rapid development and application of information technology, wireless mobile communication and information home appliances, in order to achieve more convenience, smaller volume and more humanization, many information products have been replaced by traditional input devices such as keyboard or mouse, Change to using the touch panel (TouchPanel) as the input device. [0003] figure 1 A conventional touch panel is shown, wherein for clarity, figure 1 Only the structure of the sensing series of the touch panel is shown, while other possible film layers or components are omitted. Such as figure 1 As shown, the conventional touch panel 100 includes a plurality of first sensing series 120 and a plurality of second sensing series 140 . In more detail, the first sensing series 120 extends ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 吴贤行范岳琪陈烱壮翁瑞兴
Owner WINTEK CORP
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