Input device
US7940251B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2008 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Jan 5, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A first planar input unit includes a transparent first substrate and a transparent second substrate that are stacked on each other. On an electrode formation surface of the first substrate, transparent Y-driving electrodes and transparent shielding layers are formed. On an electrode formation surface of the second substrate, X-driving electrodes and first detection electrodes are formed. At the rear of the first substrate, a display unit, such as a liquid crystal panel, is provided. Since the shielding layers are located between the display unit and the first detection electrodes, a change in the potential of the first detection electrodes is prevented from being adversely affected by noise emitted from the display unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.