Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-06-12
2007-06-12
Tan, Vibol (Department: 2819)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S098000, C345S099000
Reexamination Certificate
active
11161851
ABSTRACT:
A source driver having a structure of adjusting voltage with speed is suitable for use in a panel displaying apparatus for driving a display array unit. The structure of adjusting voltage with speed has a logic speed monitoring unit, an internal logic voltage generator, a substrate voltage generator, a substrate leakage-current monitoring unit, and a power management control unit. In this manner, by monitoring the logic operation speed of an internal logic circuit in the source driver, in accordance with the change of the operation frequency, the power is dynamically adjusted, so as to optimize a condition between the power consumption and the operation speed. And, in the standby mode, the power consumption is further reduced by adjusting the substrate voltage. Also and, according to the substrate leakage current of the source driver, the substrate voltage can also be adjusted.
REFERENCES:
patent: 5523772 (1996-06-01), Lee
patent: 2005/0088394 (2005-04-01), Chung
patent: 2005/0110738 (2005-05-01), Kim et al.
patent: 2006/0146000 (2006-07-01), Choi
patent: 2007/0018938 (2007-01-01), Wei et al.
Jianq Chyun IP Office
Novatek Microelectronics Corp.
Tan Vibol
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