Current drive circuit for supplying driving current to...

Details Current drive circuit for supplying driving current to... Current drive circuit for supplying driving current to...

2006-12-27

2010-12-28

Nguyen, Chanh (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S082000

Reexamination Certificate

active

07859489

ABSTRACT:
A current driver circuit includes a DA conversion part for generating a display current whose magnitude corresponds to a value of a displayed data, a timing control part for generating a write controlling signal, and a plurality of electric current latching parts, each of which generates a driving current. Each of the electric current latching parts having a capacitor generates a display current whose magnitude corresponds to a magnitude of a voltage to which the capacitor is charged. Each of the elective current latching parts performs a reset operation that once discharges the capacitor in response to a reset signal generated by the timing control part. The current driver circuit can generate the driving current with high accuracy and improve the speed of response to the display device.

REFERENCES:
patent: 6498596 (2002-12-01), Nakamura et al.
patent: 2004/0263437 (2004-12-01), Hattori
patent: 2005-006250 (2005-01-01), None

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