Hardware overlay assignment
US9881592B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2013 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Apr 25, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An aspect of the present invention proposes a novel approach that can reduce the total number of the overlays to be composited during the display of graphical output in a mobile computing device. As a result, the total number of memory bandwidth and the usage of a graphics processing unit by a pre-compositor can be decreased significantly. According to one embodiment, this new approach is implemented with a display panel with embedded memory which supports a partial update, or refresh feature. Which such a feature, the layer compositor (typically either the display controller or GPU) is able to keep track of actively updating regions of a display panel by checking if each layer has new content to be displayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.