Active matrix oled voltage drive pixel circuit
US7167169B2 · kind B2 · utility
44Cited by
14References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2002 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Sep 19, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided a circuit for driving a current mode light modulating device. The circuit includes (a) a capacitor for storing a data voltage, (b) a field effect transistor (FET) controlled by a signal on a scan line, for coupling the data voltage from a signal line to the capacitor, and (c) a current source, controlled by the stored data voltage, for driving the device with current provided from a power line. The power line is in a plane that is geometrically parallel to a plane within which the scan line is located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.