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Condenser type touching control panel reducing line impedence by FPC

A capacitive touch and circuit technology, applied in the direction of electrical digital data processing, printed circuit components, electrical connection printed components, etc., can solve the difficulty of the manufacturing process of the capacitive touch panel 10, the increase in height, the low rate of good manufacturing, etc. question

Inactive Publication Date: 2009-01-14
NANYA PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the disadvantage of the known capacitive touch panel 10 is that the Y-direction sensing circuit layer 13 needs to be screen-printed with a single or multi-layer metal wire 13b, and the metal wire 13b is manufactured by using metal coating and using yellow light manufacturing process. It is made by etching, in addition to increasing the difficulty of the overall manufacturing process of the capacitive touch panel 10, the manufacturing yield is also low, and the cost is correspondingly increased.

Method used

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  • Condenser type touching control panel reducing line impedence by FPC
  • Condenser type touching control panel reducing line impedence by FPC
  • Condenser type touching control panel reducing line impedence by FPC

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as Figure 4 As shown, a 3.9-inch capacitive touch panel 30 is used as a test sample, and its structure is to stack an X-direction sensing circuit layer 32 and a Y-direction sensing circuit layer 33 on the upper and lower sides of a 3.9-inch glass substrate 31, and use a device The flexible printed circuit board 34 with the wire circuit 34 a and the signal output circuit 34 b is electrically connected to the X-direction sensing circuit layer 32 and the Y-direction sensing circuit layer 33 .

[0050] The impedance of the capacitive touch panel 30 was measured with an HP 8248 LCR (inductance capacitance resistance) measuring instrument, and the results are shown in Table 1.

Embodiment 2

[0052] A 3.5-inch capacitive touch panel 30 is used as a test sample, and its structure is the same as that of the capacitive touch panel in Embodiment 1 except that a 3.5-inch glass substrate is used.

[0053] The impedance of the capacitive touch panel 30 was measured with the same equipment, and the results are shown in Table 1.

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PUM

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Abstract

A capacitor touch panel which reduces line impedance by using FPC and comprises a glass base plate and a flexible printed circuit board, wherein, the upper and the lower surfaces of the glass base plate are respectively provided with an X-direction sensing line layer and a Y-direction sensing line layer. The Y-direction sensing line layer has no screen-printed single or multiple-layer metal wires, but copper conductor material of the flexible printed circuit board is made into metal wires, which are used for connecting the X-direction sensing line layer and the Y-direction sensing line layer. The capacitor touch panel reduces the impedance of the whole line through the flexible printed circuit board and has the characteristics of improving the output and lowering the cost.

Description

technical field [0001] The invention relates to a capacitive touch panel, in particular to a capacitive touch panel using FPC to reduce line impedance. Background technique [0002] A touch panel (touch panel) is an input tool that is operated by finger pads and can be operated by multi-touch at the same time. In our lives, touch panels have gradually replaced the mouse or keyboard, and are widely used in mobile phones, electronic dictionaries, notebook computers (NB), MP3 digital players, personal digital assistants (PDA), global satellite positioning systems (GPS) , Ultra Mini Computer (UMPC) and other portable electronic products. [0003] However, whether it is a resistive or surface capacitive touch panel, in order to correctly calculate the touched position of the touch panel, the line impedance between the touch panel and the control circuit of the system motherboard must be consistent, otherwise, the touch The signal transmission between the panel and the system mo...

Claims

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Application Information

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IPC IPC(8): G06F3/044H05K1/11
Inventor 邹明仁
Owner NANYA PLASTICS CORP
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