Organic light emitting display for sensing degradation of organic light emitting diode
US9449560B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2014 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Jan 23, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting display includes a display panel including a plurality of pixels, each of the plurality of pixels including an organic light emitting diode (OLED) and a driving thin film transistor (TFT) to control an emission amount of the OLED, the plurality of pixels connected to respective sensing lines; and at least one sensing unit connected to a corresponding one of the pixels through the respective sensing line, the at least one sensing unit configured to sense an amount of carriers accumulated in a parasitic capacitor of the OLED of the corresponding one of the pixels when a driving current flows in the OLED, the at least one sensing unit thereby sensing a degradation of the OLED.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.