Touch screen
US8730178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2008 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | May 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13338
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch screen includes a liquid crystal layer, an upper transparent conductive layer, a lower transparent conductive layer, an upper transparent plate, a lower transparent plate, an upper polarizing plate, a lower polarizing plate and a circuit unit. The upper transparent conductive layer, the upper transparent plate, the circuit unit and the upper polarizing plate are disposed on the liquid crystal layer in the above-mentioned order from one side of the liquid crystal layer. The lower transparent conductive layer, the lower transparent plate and the lower polarizing plate are disposed under the liquid crystal layer in the above-mentioned order from another side of the liquid crystal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.