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Touch button device

A button and printed circuit board technology, applied in the field of capacitive touch button devices, can solve the problems of poor detection sensitivity and stability, and achieve the effects of intuitive display, large-area uniform light emission, good detection sensitivity and stability

Inactive Publication Date: 2009-10-14
SHENZHEN H&T INTELLIGENT CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor detection sensitivity and stability of the prior art touch key device, it is necessary to provide a touch key device with high detection sensitivity and stability

Method used

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Experimental program
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Embodiment Construction

[0011] Please also see figure 2 and image 3 , figure 2 It is a schematic cross-sectional structure diagram of a preferred embodiment of the touch key device of the present invention, image 3 yes figure 2 A schematic diagram of the planar structure of the touch button device shown. A plurality of key areas 21 are defined on the touch key device 2 . Each button area 21 represents a button (not shown) of the touch button device 2 .

[0012] The touch key device 2 includes a key panel 22 , a plurality of touch pads 23 , a printed circuit board 24 and a plurality of light sources 25 . The key panel 22 and the printed circuit board 24 are arranged at intervals relative to each other. The plurality of touch pads 23 are sandwiched between the key panel 22 and the printed circuit board 24 , and are electrically connected to the printed circuit board 24 . Each touch pad 23 is correspondingly disposed on one of the key regions 21 of the touch key device 2 . The plurality of ...

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PUM

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Abstract

The invention relates to a touch button device which comprises a button panel, a printing circuit board, a plurality of touch bonding pads and a plurality of light sources. The button panel is arranged opposite to the printing circuit board which comprises a plurality of through holes; and the touch bonding pads are arranged between the button panel and the printing circuit board. The light sources are arranged on the surface of the printing circuit board, moreover, the button regional area which is lighten by each light source is between 25 square millimeter and 225 square millimeter. The light given out by the light sources is respectively irradiated on the button panel by the through holes. The detection sensitivity and stability of the touch button device are high.

Description

technical field [0001] The invention relates to a touch key device, in particular to a capacitive touch key device. Background technique [0002] With the development of touch technology, touch button devices have been widely used in fields such as mechanical equipment, electrical equipment, and household appliances. In order to indicate the key state of the key, a key state indicator light is usually added to the touch key device. [0003] see figure 1 , is a schematic cross-sectional structure diagram of a touch button device in the prior art. The touch key device 1 includes a key panel 11 , a plurality of touch pads 12 , a printed circuit board 13 and a plurality of light sources 14 . The key panel 11 and the printed circuit board 13 are arranged at intervals relative to each other. The plurality of touch pads 12 and the plurality of light sources 14 are interposed between the key panel 11 and the printed circuit board 13 , wherein the plurality of touch pads 12 are a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041H03K17/96G06F3/044
Inventor 刘涛首召兵刘建伟龙逸
Owner SHENZHEN H&T INTELLIGENT CONTROL