Display device
US12367819B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2024 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Jul 29, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L25/0753
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a pixel circuit connected to a light emitting element. The pixel circuit includes a driving transistor having a gate electrode, a source electrode, and a drain electrode, and a capacitor connected with the gate electrode. The pixel circuit is driven according to a first period when a reference voltage is applied to the gate electrode, a second period when a gate-source voltage difference of the driving transistor is a threshold voltage of the driving transistor, a third period when the reference voltage is applied to the capacitor, and a voltage of the gate electrode varies due to a coupling phenomenon of the capacitor, a fourth period when a high-potential voltage higher than the reference voltage is applied to the source electrode, and a fifth period when the driving transistor is turned on to cause the light emitting element to emit light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.