Light-emitting display
US7202606B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2005 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Jul 13, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel circuit of a light-emitting display that reduces the influence of kickback generated by parasitic capacitance. The pixel circuit includes first to fourth transistors, a capacitor, and a light-emitting element. The first and second transistors are serially coupled to each other and turned on in response to a first control signal. The capacitor is coupled in parallel with the first and second transistors. The third transistor supplies a data voltage to a first electrode of the capacitor in response to a select signal. The fourth transistor outputs a current corresponding to its gate-source voltage, which is based on the voltage of the capacitor. The light-emitting element emits light corresponding to the current from the fourth transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.