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METHOD AND TOUCHPAD INTERFACE DEVICE USING LIGHT FOR DISPLAYING LEVEL

  • US 20090160671A1
  • Filed: 11/06/2008
  • Published: 06/25/2009
  • Est. Priority Date: 12/25/2007
  • Status: Active Grant
First Claim
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1. A touchpad interface device installed in an electronic device and used as an input interface for a user, the touchpad interface device comprising:

  • a control panel having a plurality of transparent areas and a plurality of covering areas forming a plurality of patterns such that the user can understand the operating functionality of the control panel according to the plurality of patterns, wherein the plurality of pattern comprises a plurality of scale patterns, and the plurality of scale patterns comprises a volume adjusting area;

    a sensing board disposed under the control panel for sensing physical contact, wherein the sensing board has a volume adjustment sensing area corresponding to the position of the volume adjusting area; and

    a plurality of lighting elements disposed under the control panel and at a position corresponding to the volume adjusting area, wherein when the lighting elements illuminate, the scale patterns at the corresponding position are illuminated;

    whereby when the user touches the volume adjusting area, the volume adjustment sensing area is activated to control the brightness of the lighting element such that the plurality of scale patterns are illuminated, wherein more scale patterns being illuminated indicates the volume is at a higher level, and the user is made aware of the level of the volume by the brightness of the scale pattern.

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