Touch panel
First Claim
1. A touch panel comprising:
- a substrate capable of propagating an acoustic wave, the substrate having a first surface, a second surface and a connecting surface, the connecting surface interconnecting the first surface and the second surface and being curved; and
a transducer mounted on the second surface and positioned for transmitting an acoustic wave from the second surface to the first surface via the connecting surface, wherein the transducer is positioned such that the acoustic wave travels in a first direction on the second surface and a second direction on the first surface, the first direction being approximately perpendicular to the second direction.
2 Assignments
0 Petitions
Accused Products
Abstract
A touch panel comprises a substrate 11 allowing acoustic wave to be propagated and a transducer 13a, mounted to this substrate, for transmitting or receiving the acoustic wave. A chamfered portion 16 is formed in the end face or the corner portion of the substrate 11 to make the acoustic wave turn around and be propagated from the front surface to the rear surface through the end face of the substrate 11. The acoustic wave propagated through the chamfered portion is received by the transducer 13a placed on the rear surface of the substrate 11. The radius (R) of the chamfered portion 16 of the substrate is 0.5 mm or more. This touch panel may prevent from forming raised portions on the front surface of the propagation medium, so that the touch panel may be enhanced in applicability to thin LCD monitors, and simplified in structure.
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Citations
11 Claims
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1. A touch panel comprising:
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a substrate capable of propagating an acoustic wave, the substrate having a first surface, a second surface and a connecting surface, the connecting surface interconnecting the first surface and the second surface and being curved; and
a transducer mounted on the second surface and positioned for transmitting an acoustic wave from the second surface to the first surface via the connecting surface, wherein the transducer is positioned such that the acoustic wave travels in a first direction on the second surface and a second direction on the first surface, the first direction being approximately perpendicular to the second direction.
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2. A touch panel comprising:
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a substrate capable of propagating an acoustic wave, the substrate having a first surface, a second surface and a connecting surface, the connecting surface interconnecting the first surface and the second surface and being curved, wherein the first and second surfaces are parallel to each other, the substrate further comprising a plurality of edges connecting the first and second surfaces such that the substrate is substantially rectangular and the connecting surface interconnects two adjacent edges; and
a transducer mounted on the second surface and positioned for transmitting an acoustic wave from the second surface to the first surface via the connecting surface. - View Dependent Claims (3, 4)
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5. A touch panel comprising:
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a substrate capable of propagating an acoustic wave, the substrate having a first surface, a second surface and a connecting surface, the connecting surface interconnecting the first surface and the second surface and being curved, and wherein the first surface and the second surface are parallel to each other; and
a transducer mounted on the second surface and positioned for transmitting an acoustic wave from the second surface to the first surface via the connecting surface. - View Dependent Claims (6)
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7. A touch panel comprising:
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a substrate capable of propagating an acoustic wave, the substrate having a first surface, a second surface and a connecting surface, the connecting surface interconnecting the first surface and the second surface and being semi-cylindrical; and
a transducer mounted on the second surface and positioned for transmitting an acoustic wave from the second surface to the first surface via the connecting surface.
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8. A touch panel comprising:
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a substrate capable of propagating an acoustic wave, the substrate having a first surface, a second surface parallel to said first surface, and a connecting surface, the connecting surface interconnecting the first surface and the second surface and being curved; and
a transducer mounted on the second surface and positioned for propagating an acoustic wave in a first direction along the second surface, along the curved connecting surface to the first surface, and in a second direction along the first surface, the second direction being a different direction than the first direction. - View Dependent Claims (9, 10, 11)
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Specification