Image display apparatus controlling brightness of current-controlled light emitting element
US7259737B2 · kind B2 · utility
75Cited by
9References
16Claims
0Family size
Inventors
Key dates
| Filing date | May 13, 2004 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | Feb 10, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display apparatus according to the present invention includes a data line that supplies a voltage determined based on emission brightness, a first switching unit that controls writing of the voltage supplied from the data line, a driver element that controls a current flowing through a current-controlled light emitting element, an organic electro-luminescence element that emits light of brightness corresponding to current applied, a reference-voltage writing unit that supplies a predetermined reference voltage, and a threshold-voltage detecting unit that detects a threshold voltage of the driver element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.