Data bus system and protocol for graphics displays
US6954201B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2002 |
| Grant date | Oct 11, 2005 |
| Priority date | — |
| Expiry date | Aug 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a point-to-point data bus architecture and a protocol for a graphics system. The TCON transmits the data to the column drivers using separate point-to-point data buses. Data may be transmitted to the column drivers during a horizontal blanking period resulting in more data being written to the column drivers as compared to a typical graphical display system. As each point-to-point data bus contains only the data for its corresponding column driver the instantaneous data rate to any column driver is lower than in conventional multi-drop architectures. The point-to-point system has fewer printed circuit board (PCB) lines and a lower loop area than a conventional multi-drop system. A protocol may also be implemented. The protocol may provide for system level control and coordination of column drivers and other display system components. This protocol allows the TCON to control the operation of the column drivers without the need for extra PCB lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.