Capacitive touch panel
US9819343B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2014 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Oct 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/96079
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a capacitive touch panel comprising a transparent panel substrate, a front surface of the substrate comprising a conductive translucent layer which, in use, is visible to a user; at least one light source associated with the back surface, wherein the light source is switchable between an ‘on’ state in which an illuminated icon is visible on the front surface of the cover panel and an ‘off’ state in which the illuminated icon is not visible on the front surface of the cover panel, wherein the light source is switchable from the off state to the on state by a change in capacitance of the conductive translucent layer; at least one switch associated with the back surface, wherein the switch is activable by a user pressing the touch panel in the vicinity of the illuminated icon to provide an output signal capable of performing a function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.