Display device capable of in-display sensing
US12254822B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2023 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Oct 30, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/148
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is related to a display device, including: a plurality of sub-pixel areas, each including a pixel circuit, each pixel circuit including: a diode, configured to be in a forward-biasing state during a display phase of the pixel circuit for light-emitting and configured to be in a reverse-biasing state in a sensing phase of the pixel circuit for light-sensing; a driving transistor for driving the diode during the display phase and serving as a source follower in the sensing phase; first to sixth transistors, applied to the gates of the first to sixth transistors respectively so that the pixel circuit switching between the display phase and the sensing phase; and a capacitor for storing a data voltage to be written to the diode in the display phase and storing the charge accumulated by the diode in the sensing phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.