Adjusting frontlight brightness during page updates
US9595240B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2013 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Nov 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2380/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques for adjusting a brightness of a front that lights a display of an electronic device in response to determining that the display is going to perform an update. Typically, page updates on certain types of displays, such as electronic paper displays, result in a relatively large but rapid change in brightness. Therefore, by increasing the brightness during the relatively dark portion of the update (e.g., when some, a majority, or all of the pixels are in the black state) and then decreasing the brightness back to its initial state upon completion of the update, the overall brightness perceived by the user remains more uniform. Increasing the uniformity of this perceived brightness in turn decreases the jarring affect of the flashing update and increases the experience of the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.