Ultrasonic recognition module, driving method thereof, and display device
US11398105B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Apr 3, 2020 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Oct 15, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/74
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An ultrasonic recognition module, a driving method thereof, and a display device. Multiple receiving electrodes are divided into multiple receiving groups. Pulse signal input ends of driving circuits corresponding to the receiving electrodes in the same receiving group are electrically connected to a same pulse signal input line, and pulse signal input ends of driving circuits corresponding to the receiving electrodes in the different receiving groups are electrically connected to different pulse signal input lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.