Display device
US6806857B2 · kind B2 · utility
191Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2001 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Dec 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0626
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Grey scale linearity and power efficiency in active matrix (O) LEDs are enhanced by storing the grey value in a memory circuit, coupled to an adjusting circuit, preferably via a current mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.