Pixel circuit and display device having the same
US12412509B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2023 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | May 30, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel circuit includes a light emitting element, a write transistor configured to write a data voltage in response to a write gate signal, a driving transistor configured to generate a driving current based on the data voltage and to apply the driving current to the light emitting element, a compensation transistor configured to diode-connect the driving transistor in response to a compensation gate signal, a first initialization transistor configured to apply a first initialization voltage to a control electrode of the driving transistor in response to an initialization gate signal, and a second initialization transistor configured to apply a second initialization voltage to an anode electrode of the light emitting element in response to a bias gate signal having an activation period longer than at least one of the compensation gate signal and the initialization gate signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.