Source driver and internal data transmission method thereof

Details Source driver and internal data transmission method thereof Source driver and internal data transmission method thereof

2005-09-21

2008-11-11

Mengistu, Amare (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S100000, C345S204000

Reexamination Certificate

active

07450102

ABSTRACT:
A source driver and an internal data transmission method are provided. The present invention employs specially designed switch units and creates specially designed data paths in a source driver, which matches with the driving method for dot invesion and the specially designed pixel array. When the dot inversion driving method is used on a pixel array of a specific design, each output buffer and digital-to-analog converter inside the source driver continuously output voltages of positive polarity and voltages of negative polarity, instead of switching between positive and negative polarities. Consequently, the swing voltages that the source driver outputs can be lowered, the power consumption can also be reduced accordingly, a smaller area is occupied, and the costs are reduced.

REFERENCES:
patent: 2003/0071778 (2003-04-01), Lee et al.
patent: 2003/0132907 (2003-07-01), Lee et al.
patent: 2004/0104872 (2004-06-01), Kang et al.
patent: 2004/0125067 (2004-07-01), Kim et al.

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