Error correction for display device
US10847075B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2019 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Apr 10, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device has an image processing unit that determines an error for a pixel location that is based on the difference between an input color dataset and an output color dataset. The error is fed back to the image processing unit to propagate and spread across other neighboring pixel locations. In generating the output color values, the most significant bits (MSBs) and the least significant bits (LSBs) may be treated separately. The display device may extract the MSBs from the input and generate a first output color sub-dataset that is related to the MSBs. The display device may determine the LSBs from a difference between the input color dataset and the output MSBs. The display device may process the LSBs to compensate, adjust, scale, and quantize the values. The MSBs and LSBs may be re-combined to determine an actual color value displayed at the pixel location to determine the error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.