Multi-functional keypad module for a mobile phone

a keypad module and multi-functional technology, applied in the direction of emergency actuators, telephone set constructions, electrical apparatus, etc., can solve the problems of inability to accurately press the keys or be certain whether the pressing action has been completed, inability to accurately input signals, and inability to ensure the pressing action is completed, so as to reduce the amount of material, reduce the structure thickness of the keypad module for the mobile phone, and enhance the touch control effect

Inactive Publication Date: 2009-03-12
SILITECH TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a new type of keypad module used in mobile phones. It combines different layers together to make it thinner while still providing efficient light guidance and touch control. This results in improved tactile feedback during use.

Problems solved by technology

The technical problem addressed in this patent is how to ensure accurate pressure when typing characters on a small device such as a smartphone without causing too much force or wear out any part of the keyboard.

Method used

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  • Multi-functional keypad module for a mobile phone
  • Multi-functional keypad module for a mobile phone
  • Multi-functional keypad module for a mobile phone

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Embodiment Construction

[0021]Please refer to FIGS. 2 to 4. FIG. 2 is a perspective view showing the multi-functional keypad module for a mobile phone according to one embodiment of the present invention, FIG. 3 is an exploded view thereof and FIG. 4 is an assembled view. The present invention provides a keypad module 2 of a mobile phone, which includes a circuit board 20, a soft light-guiding rubber layer 22, a light-emitting element 23, an optical touch layer 24, and a key layer 26.

[0022]The circuit board 20 is a printed circuit board, and is made of copper, aluminum, iron, or other soft substrate for electrical connection. The surface of the circuit board 20 is adhered with an electrically conductive metallic film 21 for generating electrical signal input, thereby processing the related electrical signals. The electrically conductive metallic film 21 has a plurality of electrically conductive portions 210. Each of the electrically conductive portions 210 is arranged at intervals, thereby allow for the inpu

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Abstract

A multi-functional keypad module for a mobile phone includes a circuit board, a light-emitting element, a soft light-guiding rubber layer, an optical touch layer, and a key layer. The soft light-guiding rubber layer is provided on the circuit board and has a plurality of protrusions each corresponding to the circuit board; thereby a feedback feeling from a pressing action and a light-guiding effect can be obtained. The optical touch layer is provided on the soft light-guiding rubber layer, in order to continue the optically enhanced touch-control and the feedback feeling. The key layer is provided on the optical touch layer, with a plurality of keys respectively corresponding to one of the protrusion, thereby completes and achieves the optically enhanced touch-control effect and feedback feeling. Via the above arrangement, the keypad module of a mobile phone has multiple functions of light guiding, touch-control, and feedback feeling from a pressing action.

Description

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Claims

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Application Information

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Owner SILITECH TECH CORP
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