Image display apparatus using current-controlled light emitting element
US7358941B2 · kind B2 · utility
173Cited by
15References
10Claims
0Family size
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Key dates
| Filing date | Feb 18, 2004 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Aug 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel circuit includes a driver element that is supplied with a potential from a data line. The driver element controls a value of current passing through an electric light emitting element. Upon obtaining a threshold voltage, a conductive member connected to the electric light emitting element is made to be a floating state to cause the driver element to become on-state, variations in the potential of the conductive member caused by charges passing through the driver element to flow into the conductive member are detected by a threshold voltage detector to obtain the threshold voltage of the driver element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.