Active matrix light emitting diode pixel structure and concomitant method
US6229506A · kind A · utility
824Cited by
28References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1998 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Apr 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A LED pixel structure that reduces current nonuniformities and threshold voltage variations in a "drive transistor"of the pixel structure is disclosed. The LED pixel structure incorporates a current source for loading data into the pixel via a data line. Alternatively, an auto zero voltage is determined for the drive transistor prior to the loading of data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.