Touch control unit, electrochromatic force sensing touch pad, input method thereof, and display panel
US10795465B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | May 14, 2019 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | May 23, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04103
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch control unit, a touch pad, an input method and a display panel are disclosed. The touch control unit includes a substrate, a first electrode layer formed on the substrate, an electrochromic film formed on the first electrode layer, a second electrode unit formed on the electrochromic film and a piezoelectric film unit disposed corresponding to the second electrode unit. At least a portion of the piezoelectric film unit is in direct contact with the second electrode unit. The second electrode unit is transparent, and a projection area of the piezoelectric film unit on the substrate is smaller than a projection area of the second electrode unit on the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.