Touch display panel
US8134537B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Oct 6, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13394
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch display panel including a first substrate, a second substrate and a liquid crystal layer is provided. The first substrate includes sensing areas and a non-sensing area outside the sensing areas. Each sensing area is provided with a first electrode thereon. The second substrate includes main spacers, sensing protrusions, first sub-spacers and second sub-spacers. The main spacers are connected to the non-sensing area. The sensing protrusions are corresponding to the sensing area and respectively have a second electrode. A sensing gap exists between each second electrode and the corresponding first electrode. The first sub-spacers are corresponding to the non-sensing area and respectively keep a first sub-spacer gap from the first substrate. The second sub-spacers are corresponding to the non-sensing area and respectively keep a second sub-spacer gap from the first substrate. The sensing gap is greater than the first sub-spacer gap and less than the second sub-spacer gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.