Display panel, manufacturing method, and display device
US11538271B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2021 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/198
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a display panel, a manufacturing method thereof, and a display device. The display panel includes a plurality of optical fingerprint identification structures, each optical fingerprint identification structure includes a display region and a sensing region, the display region includes a driving circuitry layer, a planarization layer, a pixel definition layer, and a light-emitting element, and the light-emitting element includes an anode, a light-emitting material layer and a cathode. The sensing region includes a sensing region opening, an optical sensor and a cathode metal layer, the cathode metal layer includes a first cathode metal layer and a second cathode metal layer, and the first cathode metal layer is separated from the second cathode metal layer by a gap, so that light emitted by the light-emitting element is allowed to enter the optical sensor through the gap after being reflected by a fingerprint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.