Apparatus, method and system to enhance legibility of images shown on a passive display in a bright environment by increasing or maintaining a range of grey levels and decreasing a number of grey levels in that range
US9218770B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Jun 1, 2011 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | May 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display system and method for improving legibility of images viewed on a passive display in a bright environment, including apparatus and method for increasing or maintaining the range of grey levels for the image as viewed on the display and decreasing the number of grey levels used in that range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.