Method of and unit for displaying an image in sub-fields
US6525702B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 2000 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Mar 1, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device (600) is driven in a number of sub-fields. Each of the sub-fields is for outputting a respective illumination level by the display device. In each sub-field, a pixel of the displayed image may emit an amount of light corresponding to the particular sub-field, depending on whether it is switched on or not. A required intensity level of the pixel is realized by selecting an appropriate combination of sub-fields in which the pixel is switched on. A plurality of sub-fields is available to realize a particular intensity level. The image display unit (604) has a selection unit (608) that is arranged to select the combination of sub-fields for a particular pixel from a plurality of available combinations in such a way that any artifact is as small as possible. This selection is carried out on the basis of a further pixel in the current image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.