Surface wave type touch panel
First Claim
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1. A surface acoustic wave type touch panel comprising:
- a glass plate;
a film that faces a surface of said glass plate; and
dot spacers formed on said glass surface that faces said film, whereinsaid dot spacers are each formed not larger in diameter than one half of the wavelength of a surface propagating acoustic wave.
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Abstract
The present invention is directed to the provision of a touch panel comprising a glass plate, a film that faces a surface of the glass plate, and dot spacers formed on the glass surface that faces the film, wherein the effective diameter of the dot spacer portion 51 that contacts the glass substrate is held within one half of the wavelength of a surface propagating acoustic wave. This arrangement serves to enhance the efficiency of surface acoustic wave propagation in the touch panel.
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Citations
6 Claims
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1. A surface acoustic wave type touch panel comprising:
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a glass plate; a film that faces a surface of said glass plate; and dot spacers formed on said glass surface that faces said film, wherein said dot spacers are each formed not larger in diameter than one half of the wavelength of a surface propagating acoustic wave. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification