Display device with integral touch panel surface
US8400430B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2004 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Apr 18, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/045
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch panel is integrated into a flat panel display device having a visual display surface with a front polarizer layer, particularly a liquid crystal display device. The touch panel comprises a flexible transparent membrane containing the front polarizer layer and having a first transparent conductive layer on a lower surface of the flexible transparent membrane and a rigid base comprising the flat panel display device and having a second transparent conductive layer on an upper surface of the rigid base. At least one spacer separates the flexible transparent membrane from the rigid base, keeping the first and second transparent conductive layers in spaced-apart facing relationship. A bus bar and tail communicate a signal from the touch panel to the flat panel display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.