Press key using film switch circuit and manufacturing method thereof

A thin film circuit and membrane switch technology, which is applied in the direction of circuit, electric switch, user/computer interaction input/output, etc., can solve the error of bonding position, increase the difficulty of positioning the bonding position of elastic elements, and make the adhesive arbitrary Flow and other issues, to achieve the effect of accurate bonding, increase manufacturing quality and product yield

Inactive Publication Date: 2008-12-03
DARFON ELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]However, because the surface of the insulating layer is flat, it is often easy for the elastic element to slide arbitrarily during the bonding process, which in turn causes errors in the bonding position and cannot achieve precise positioning
In addition, due to the flat surface of the insulating layer, the adhesive applied on it may flow freely, which increases the difficulty of locating the bonding position of the elastic element
In the case that the above problems cannot be properly solved, the manufacturing cost is often increased, and the product yield and quality are also affected to a considerable extent.

Method used

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  • Press key using film switch circuit and manufacturing method thereof
  • Press key using film switch circuit and manufacturing method thereof
  • Press key using film switch circuit and manufacturing method thereof

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Embodiment Construction

[0031] see figure 1 , figure 1 It is an assembled and exploded perspective view of the button 1 according to a preferred embodiment of the present invention. Such as figure 1 As shown, the button 1 includes a substrate 10 , a thin film circuit 12 , a first insulating layer 14 , a second insulating layer 16 , an elastic element 18 , a keycap 20 and a supporting device 22 .

[0032] Such as figure 1 As shown, the thin film circuit 12 has a switch 120 . In this specific embodiment, the thin film circuit 12 is generally made of polyethylene terephthalate (PET), but not limited thereto. In this embodiment, the switch 120 may include a first conductive portion 1200 and a second conductive portion 1202 separated from the first conductive portion 1200 . In other words, since the first conductive portion 1200 and the second conductive portion 1202 are separated and not electrically connected, the switch 120 is in an off state at this time. In actual application, the first conduct...

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Abstract

The invention provides a membrane switching circuit and a keystroke using the membrane switching circuit. An insulating layer of the membrane switching circuit is provided with an annular opening. The bottom of an elastic element is matched with the annular opening of the insulating layer and bonded to the annular opening by an adhesive. The annular opening can assist the elastic element to be accurately bonded to a designated position. In addition, the annular opening can prevent the adhesive from overflowing out of the annular opening.

Description

technical field [0001] The present invention relates to a membrane switch circuit (membrane switch circuit) and a key (keyswitch) using the membrane switch circuit, and in particular to an insulating layer (annualar opening) with an annular opening (annualar opening), and the annular The opening can assist a flexible member (deformable member) to be adhered to the membrane switch circuit of the annular opening and the key using the membrane switch circuit accurately. Background technique [0002] The keyboard is currently the most common input device, which can be applied to various electronic devices, such as home computers, notebook computers, personal digital assistants or other similar electronic devices. Since there is a large demand for keyboards in the market, it is an important goal of various manufacturers to quickly manufacture a large number of keyboards at the lowest cost and ensure a high yield and high quality of products. [0003] In the manufacturing process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/12H01H13/14H01H13/20H01H13/70H01H13/88H01H11/00G06F3/02
Inventor 石正玲
Owner DARFON ELECTRONICS CORP
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