Touch sensor having strain gauge and display device including the same
US11307699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2021 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jan 28, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04113
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A display device includes: a base substrate; a light emitting element located on the base substrate; a thin-film encapsulation layer located on the light emitting element; touch electrodes located on the thin-film encapsulation layer, each of the touch electrode including an opening; and a strain gauge including: resistance lines located in the openings, respectively, the resistance lines located in the same layer as the touch electrodes and having variable resistance values changed in response to a touch input; a first connection line connecting two resistance lines neighboring each other along a first direction; and a second connection line connecting two resistance lines neighboring each other along a second direction, the second direction intersecting the first direction, wherein the first connection line and the second connection line are located between the thin-film encapsulation layer and the resistance lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.