Display driver, operating method thereof, host for controlling the display driver, and system having the display driver and the host
US8878995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2012 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Aug 31, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An operation method of a display driver includes generating a count value by counting a period of a synchronization signal related to a synchronization packet received from a host, receiving a mode change command from the host, the mode change command indicating a change from a video mode transmitting first image data to a display by bypassing a frame memory to a command mode transmitting second image data to the display through the frame memory, and generating an internal synchronization signal having a period substantially equal to the period of the synchronization signal by using the count value based on the mode change command after a last pulse of the synchronization signal is generated. A time interval between the last pulse and a first pulse of the internal synchronization signal is equal to the period of the synchronization signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.