Data driver
US6788231B1 · kind B1 · utility
92Cited by
8References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 2003 |
| Grant date | Sep 7, 2004 |
| Priority date | — |
| Expiry date | Jun 12, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/742
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data driver for driving pixels in an active matrix organic LED (AMOLED) is provided the data driver includes a plurality of converters configured to convert to analog current signal digital voltage signals in order to drive the pixels to emit light. Each converter has a plurality of current mirror devices configured to generate mirrored current signals by inputting two control signals. Meanwhile, the mirrored current signals can maintain their preciseness even if deviation of the characteristics of the transistors implanted within the current mirror devices occurs during fabricating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.