Element substrate and light emitting device
US7358942B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2004 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Dec 29, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/3031
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light emitting device and an element substrate which are capable of suppressing variations in luminance intensity of a light emitting element among pixels due to characteristic variations of a driving transistor without suppressing off-current of a switching transistor low and increasing storage capacity of a capacitor. A gate potential of a driving transistor is connected to a first scan line or a second scan line, and the driving transistor operates in a saturation region. A current controlling transistor which operates in a linear region is connected in series to the driving transistor. A video signal which transmits a light emission or non-emission of a pixel is input to the gate of the current controlling transistor through a switching transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.