Method and device for visual masking of defects in matrix displays by using characteristics of the human vision system
US7714881B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 2004 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Dec 2, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method for reducing the visual impact of defects present in a matrix display comprising a plurality of pixels, said pixels comprising at least three sub-pixels, each sub-pixel intended for generating a sub-pixel color which cannot be obtained by a linear combination of the sub-pixel colors of the other sub-pixels of the pixel, the method comprising: providing a representation of a human vision system, characterizing at least one defect sub-pixel present in the display, the defect sub-pixel intended for generating a first sub-pixel color, the defect sub-pixel being surrounded by a plurality of non-defective sub-pixels, deriving drive signals for at least some of the plurality of non-defective sub pixels in accordance with the representation of the human vision system and the characterizing of the at least one defect sub-pixel, to thereby minimize an expected response of the human vision system to the defect sub-pixel, and driving at least some of the plurality of non-defective sub-pixels with the derived drive signals, wherein minimizing the response of the human vision system to the defect sub-pixel comprises changing the light output value of at le…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.