Method and apparatus for refreshing a display
US8963936B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2010 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Nov 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2380/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Aspects of the disclosure provide an apparatus. The apparatus includes a display module configured to display an image frame on a screen based on pixel data of the image frame, a memory chip configured to include a frame buffer that stores pixel data of image frames to be displayed by the display module and an integrated circuit, such as a system on chip (SOC). The integrated circuit includes a memory controller coupled to the memory chip and configured to access the memory chip to fetch the pixel data from the frame buffer in response to data requests, and a display controller coupled to the display module. The display controller is configured to send data requests to the memory controller to fetch the pixel data from the frame buffer and transmit the pixel data to the display module when the apparatus is in a first mode, such as an active mode. Further, the display controller is configured to selectively drop a portion of the data requests to increase an idle time of the memory chip when the apparatus enters a second mode, such as an e-book mode, so that the memory chip enters a memory power saving mode when the apparatus is in the second mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.