Non-uniformity correction for displayed images
US6704008B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Jan 20, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/57
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display apparatus including an image correction section, a data storage device, and an image forming section. The image correction section corrects levels of given image data in accordance with the correction data stored in the data storage device. The image forming section is provided with a plurality of pixels each transmitting image-forming light responsive to corrected image data supplied from the image correction section, and the image-forming light reproduces a displayed image. The correction data are determined by obtaining data-correction values based on input-output characteristics of the image forming section. The data-correction values represent correction amounts of the image data needed to bring, closer to a predetermined reference level, the output levels of light at a plural locations of a displayed image which is displayed responsive to uniform image data representing a specific uniform image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.