Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2005-10-11
2005-10-11
Hjerpe, Richard (Department: 2675)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S214000, C345S215000
Reexamination Certificate
active
06954201
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.
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Camp Donald E.
Erhart Richard Alexander
Kuhns Mark
Ludden Christopher A.
Moore Bruce C.
Beck Alexander S.
Hjerpe Richard
Merchant & Gould P.C.
National Semiconductor Corporation
Sullivan Timothy P.
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