Display device using demultiplexer

Details Display device using demultiplexer Display device using demultiplexer

2004-11-16

2010-06-15

Trost, IV, William (Department: 2472)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S542000, C370S543000, C345S076000, C345S077000, C345S082000, C345S098000, C345S690000

Reexamination Certificate

active

07738512

ABSTRACT:
Disclosed is a display device using a demultiplexer. The demultiplexer sequentially samples the data current that is time-divided and applied by a data driver, and holds it to the data lines. Since the demultiplexer is to sample the data currents corresponding to N data lines during one horizontal period when performing 1:N demultiplexing, the data current corresponding to one data line is sampled during the 1/N horizontal period. In the present invention, a signal line coupled between the demultiplexer and the data driver is precharged with the current before coupling a precharge circuit to a sample/hold circuit and sampling the data current. The precharge current is M times the data current where M is a real number greater than 1.

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