Acoustic wave type touch panel
US7920133B2 · kind B2 · utility
50Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2007 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Mar 8, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0436
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An acoustic wave type touch panel is equipped with: a substrate that objects contact; reflective arrays having a great number of inclined lines provided on the substrate; acoustic wave generating sections provided on the substrate; and detecting sections provided on the substrate. An array of micro reflectors, which are shorter than the inclined lines, for attenuating spurious waves generated by reflection of the acoustic waves by the reflective arrays, is provided in the reflective array regions between the inclined lines at least one end thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.