Active matrix pixel drive circuit for oled display
US7427833B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2004 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | Oct 20, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device has a plurality of pixels, each having a current-driven display element coupled between a first conductive layer and a second conductive layer, the second conductive layer being coupled to a current supply via a switchable device having a thin film component on a first area of a substrate. Each pixel has a first capacitive device having a first capacitor plate on a second area of the substrate, the first capacitor plate conductively coupled to the thin film component, a second capacitor plate and a first insulating layer between the first capacitor plate and the second capacitor plate. On top of the first capacitive device is a second capacitive device sharing the second capacitor plate, the second capacitive device including a third capacitor plate sharing the second conductive layer, and a second insulating layer between the second capacitor plate and the third capacitor plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.