OLED display with aging compensation
US6995519B2 · kind B2 · utility
262Cited by
24References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2003 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Feb 17, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting diode (OLED) display includes an array of OLEDs, each OLED having two terminals; a voltage sensing circuit for each OLED including a transistor in each circuit connected to one of the terminals of a corresponding OLED for sensing the voltage across the OLED to produce feedback signals representing the voltage across the OLEDs; and a controller responsive to the feedback signals for calculating a correction signal for each OLED and applying the correction signal to data used to drive each OLED to compensate for the changes in the output of each OLED.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.