Patent ID: 7920133

Claim:
An acoustic wave type touch panel, comprising: a substrate having a touch region; reflective arrays arranged in a great number of inclined lines, at least one of which sends and at least one of which receives acoustic waves through the touch region, provided on the substrate; an acoustic wave generating section, generating acoustic waves that propagate toward the reflective arrays, provided on the substrate; a detecting section which detects the acoustic waves that change according to contact positions of objects with respect to the touch region, provided on the substrate; and an array of micro reflectors, each of the micro reflectors being shorter than the inclined lines and within a region formed by one of the reflective arrays, for attenuating spurious waves generated by reflection of the acoustic waves by the reflective arrays, at least one of said micro reflectors provided within the region between at least two of the inclined lines of said one of the reflective arrays, each of said micro reflectors formed at a side of said region and each of said micro reflectors not being located at the center of said inclined lines.