Display systems with handshaking for rapid backlight activation
US9153179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2012 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Dec 29, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system may include a graphics controller and a display. The graphics controller may generate video data to display on the display. The display may include a display panel for displaying the video data, a backlight unit for providing the display panel with backlight, and a display timing controller for communicating with the graphics controller over a communications path. The communications path may include a video data path for conveying video data bits, an interrupt path for conveying interrupts, and a sideband control path for conveying control signals such as a backlight enable signal for the backlight unit. The graphics controller and timing controller may perform link training operations to assess link quality between the graphics controller and timing controller. The timing controller may use interrupts to inform the graphics controller of system status. Use of the interrupts may help the system minimize the time consumed during display power-up operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.