| 摘要 |
<p>Provided is an ultrasonic touch screen protection panel including: a transparent film flat sheet (10) that is formed in the same size as that of a non-piezoelectric substrate (11), has a space portion (10a) on the rear surface of the transparent film flat sheet (10), and are fixedly attached to both edges of the non-piezoelectric substrate (11); a transparent ultrasonic attenuation layer (20) which is attached to the space portion (10a) of the rear surface of the film flat sheet (10), has the same size as that of a detection area (17) of the non-piezoelectric substrate (11), and attenuates the surface acoustic waves (SAWs); and an ultrasonic transmission layer (30) including a number of protrusions (31) that transmits the surface acoustic waves (SAWs) on the rear surface of the ultrasonic attenuation layer (20). Accordingly, attenuation of the surface acoustic waves (SAWs) of the non-piezoelectric substrate (11) is attained by the ultrasonic attenuation layer (20) at a contact position between the finger or the article and the film flat sheet when the finger or the article contacts the film flat sheet (10) to thereby detect the contact position.</p> |
