G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 3/033 (2006.01)
Patent
CA 2529715
A touch sensor having an acoustic substrate, an acoustic transducer, and an acoustically diffractive grating is provided. The grating is disposed between the transducer and the substrate, so that acoustic energy from the transducer is coupled to an acoustic wave propagating along the surface of the substrate. If used in a display device, the combination of the transducer and grating may provide a low profile that allows the assembly to be more easily placed between the acoustic substrate and a bezel placed in front of the substrate. No acoustic components need be mounted on the rear surface of the substrate, allowing the acoustic substrate to be formed on the front surface of the display device.
L'invention concerne un capteur tactile comprenant un substrat acoustique, un transducteur acoustique et une grille acoustiquement diffractive. Ladite grille est disposée entre le transducteur et le substrat, de sorte que l'énergie acoustique provenant du transducteur est couplée à une onde acoustique se propageant le long de la surface du substrat. Lorsqu'on l'utilise dans un dispositif d'affichage, la combinaison du transducteur et de la grille peut produire un profil bas qui permet de placer plus facilement l'ensemble entre le substrat acoustique et un encadrement placé à l'avant dudit substrat. Il n'est pas nécessaire de monter un composant acoustique sur la surface arrière du substrat, ce qui permet de former le substrat acoustique sur la surface avant du dispositif d'affichage.
Adler Robert
Copper Charles D.
Kent Joel C.
Tsumura Masahiro
Elo Touchsystems Inc.
Fetherstonhaugh & Co.
Tyco Electronics Corporation
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