Drive method of EL display panel
US8063855B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2007 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Jul 13, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/861
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A switching transistor is controlled to turn on or off depending on a turn-on voltage or a turn-off voltage applied to a gate signal line. A driver transistor is supplied with an image signal applied to a source signal line through a switching transistor. A voltage based on the supplied image signal is retained by a capacitor. The driver transistor supplies a light-emitting current to an EL element based on the voltage retained in the capacitor. A capacitor is formed between one terminal of the capacitor (that is, a gate terminal of the driver transistor) and a gate signal line. The capacitor causes the gate terminal voltage of the driver transistor to be varied depending on variation of the potential on the gate signal line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.