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Dome sheet and key pad

A dome and keyboard technology, which is applied in the field of manufacturing dome sheets and small keyboards, can solve problems such as metal dome differences, and achieve the effect of improving tactile characteristics

Inactive Publication Date: 2011-09-21
SONY ERICSSON MOBILE COMM AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the tactile characteristics of the bi-layer sheet are significantly different from those of the metal dome itself

Method used

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  • Dome sheet and key pad
  • Dome sheet and key pad

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Embodiment Construction

[0037] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the following description of the embodiments is given for purposes of illustration only and is not to be read in a limiting sense. The scope of the present invention should not be limited by the embodiments described below or the accompanying drawings, which should be understood as illustrative, and the scope of the present invention should be limited only by the appended claims and their equivalents.

[0038] It should be noted that the drawings are to be regarded as merely schematic illustrations and that elements in the drawings are not necessarily drawn to scale relative to each other. Rather, the representation of the various elements is chosen such that their function and general purpose will be apparent to those skilled in the art.

[0039] figure 1 A sheet 101 according to one embodiment of the invention for pr...

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Abstract

A dome sheet, a key pad and a method of manufacturing a dome sheet are disclosed. The key pad comprises a dome sheet with a top sheet, a bottom sheet and a dome. The dome sheet forms a switch arrangement when mounted to a contact layer.

Description

technical field [0001] The present invention relates to a dome sheet, a sheet for producing the dome sheet and a keypad comprising the dome sheet. The invention also relates to a method of manufacturing a dome sheet. Background technique [0002] Electronic devices, such as mobile electronic devices, including cell phones, personal digital assistants, etc. often include keypads having one or more keys to enable a user to enter information or control commands. In these devices, the key press is detected electrically by contact closure. To this end, modern keyboards include a metal dome array, also known as a key dome array or a switch array, comprising a plurality of metal dome arrays attached to a sheet of material. The top (metal dome), the sheet is adhered to the printed circuit board (PCB). The contacts printed on the circuit board are covered by and contacted by the metal dome of the metal dome sheet. When the metal dome is depressed, the inner and outer contacts com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/88H01H13/82
CPCH01H2213/01H01H13/88H01H13/82Y10T156/1002Y10T428/24314H01H13/48H04M1/23
Inventor 卡尔 奥拉 安妮福尔斯
Owner SONY ERICSSON MOBILE COMM AB
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