Data drive circuit for current writing type AMOEL display panel
US6982687B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2003 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | Oct 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/027
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Data drive circuit for a current writing type AMOEL display panel including a plurality of current output channels, and a plurality of channel current generating circuits on respective current output channels for minimizing a difference of current levels occurred between the current output channels, each inclusive of one pair of transistors, a current generating part for generating a current of a small deviation proportional to square of a difference of threshold voltages of the one pair of the transistors, and a current mirror part for mirroring the current, and forwarding the mirrored current as a channel current for the channel, thereby minimizing a difference of current levels occurred between output channels, and driving the AMOEL display panel uniformly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.