Display drive systems
US8427512B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2007 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Feb 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/048
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention generally relates to methods, apparatus and computer program code for improved OLED (organic light emitting diode) display drive systems, in particular to compensate for burn-in.A method of compensating an OLED display device for burn-in of pixels of the OLED display, the method comprising: measuring a first voltage drop across at least one test pixel of the display; measuring a second voltage drop across at least one other pixel of the display; determining, from said first and second voltages and a from value (V1) representing a drive voltage increase for a loss in efficiency of said display due to burn-in, an estimated reduction in efficiency of said display due to burn-in; and compensating a drive to said display using said estimated efficiency reduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.