CAPACITIVE TYPE TOUCH PANEL
First Claim
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1. A capacitive type touch panel comprising:
- a transparent substrate; and
a transparent touch control unit disposed on said substrate and including a plurality of spaced apart transparent key pads that are made from a transparent electrically conductive material, and a transparent electrically conductive reference potential member that is associated operatively and electrically with said transparent key pads to generate a charge distribution between two adjacent ones of said transparent key pads, thereby forming virtual key pads among said transparent key pads such that each of said transparent key pads and said virtual key pads is operable to sense an object when the object approaches closely the respective one of said transparent key pads and said virtual key pads.
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Abstract
A capacitive type touch panel includes: a transparent substrate; and a transparent touch control unit disposed on the substrate and including a plurality of spaced apart transparent key pads that are made from a transparent electrically conductive material, and a transparent electrically conductive reference potential member that is associated operatively and electrically with the transparent key pads to generate a charge distribution between two adjacent ones of the transparent key pads, thereby forming virtual key pads among the transparent key pads.
15 Citations
14 Claims
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1. A capacitive type touch panel comprising:
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a transparent substrate; and a transparent touch control unit disposed on said substrate and including a plurality of spaced apart transparent key pads that are made from a transparent electrically conductive material, and a transparent electrically conductive reference potential member that is associated operatively and electrically with said transparent key pads to generate a charge distribution between two adjacent ones of said transparent key pads, thereby forming virtual key pads among said transparent key pads such that each of said transparent key pads and said virtual key pads is operable to sense an object when the object approaches closely the respective one of said transparent key pads and said virtual key pads. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A touch panel device comprising:
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a screen; a transparent substrate superposed on said screen; and a transparent touch control unit including a plurality of spaced apart transparent key pads that are made from a transparent electrically conductive material and that are formed on said substrate, and a transparent conductive reference potential member that is disposed on one of said screen and said substrate and that is associated operatively and electrically with said transparent key pads to generate a charge distribution between two adjacent ones of said transparent key pads, thereby forming virtual key pads among said transparent key pads such that each of said transparent key pads and said virtual key pads is operable to sense an object when the object approaches closely the respective one of said transparent key pads and said virtual key pads. - View Dependent Claims (13, 14)
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Specification