Organic light emitting display with pixel sensing circuit and driving method thereof
US8836691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2010 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Dec 28, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0626
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting display that can stably extract information from pixels. A driving method of the organic light emitting display includes: generating first digital values by sensing deterioration information of organic light emitting diodes respectively included in a plurality of pixels coupled to a data line during two or more continuous frame periods; storing the first digital values in a memory; generating second digital values by sensing threshold voltage and mobility information of driving transistors respectively included in the pixels during two or more continuous frame periods; storing the second digital values in the memory; converting input data into calibration data according to the information stored in the memory to display an image having a uniform brightness, irrespective of the deterioration information of the organic light emitting diodes and the threshold voltage and mobility information of the driving transistors; and supplying a data signal in accordance with the calibration data to the data line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.