Display with aging correction circuit
US6501230B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2001 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Aug 27, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display includes an electroluminescent display panel containing a light emitting material; a video interface circuit for producing an analog video signal for driving the display; an age circuit for supplying a signal representing the age of the light emitting material; an aging correction circuit responsive to the age signal for forming an analog aging correction signal, the aging correction circuit including, controller means responsive to the age signal for producing a digital correction value, and a digital to analog converter for converting the digital correction value to an analog correction signal; and a summing amplifier for summing the analog aging correction signal with the video signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.