Organic light-emitting display apparatus and method of driving the same
US10157569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2015 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Jun 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light-emitting display apparatus includes a plurality of pixels, each including: an organic light emitting diode (OLED); a driving transistor; and a first node therebetween; a sensor for sensing a first current from the driving transistor when a first reference voltage is applied to the first node and sensing a second current from the driving transistor when a second reference voltage is applied to the first node, when a first source data signal, corresponding to a first gray level, is transferred to a corresponding one of the pixels; a driving current determiner for generating characteristic information of the driving transistor based on the first and the second currents and determining a driving current of the driving transistor, corresponding to the first gray level, based on the characteristic information of the driving transistor and current-voltage information of the OLED, which is stored in the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.