Display substrate having texture information identification function, method for driving the same and display device
US11403868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2019 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Aug 23, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K77/111
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A display substrate, a method for driving the same and a display device are provided. The display substrate includes a first base substrate, at least one vibrator and at least one identification unit. The at least one identification unit is on the first base substrate, the at least one identification unit is in a display area of the display substrate, and the at least one vibrator is on a side of the first base substrate facing away from the identification unit. The at least one vibrator is configured to drive the first base substrate to vibrate to emit an acoustic signal; and the at least one identification unit is configured to receive an ultrasonic signal reflected by an object to be detected, and convert the ultrasonic signal into a first electrical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.