Circuit, display device, and electronic device

Details Circuit, display device, and electronic device Circuit, display device, and electronic device

2005-07-19

2005-07-19

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

Reexamination Certificate

active

06919834

ABSTRACT:
An object of the present invention is to provide a method for shortening a setting time of an analog current to be outputted in a DA converter circuit which reads in digital voltage value data and outputs analog current value data. The present invention can be used for a data driver circuit in an AM type OLED display device. The present invention provides a function of applying a constant voltage exceptionally in the case where data to be inputted takes a predetermined value for a current output DA converter circuit. Consequently, a setting time of an analog current to be outputted for low current data and the like can be shortened.

REFERENCES:
patent: 5703582 (1997-12-01), Koyama et al.
patent: 2003/0156102 (2003-08-01), Kimura
patent: 2004/0135799 (2004-07-01), Shiomi et al.
patent: 11-282419 (1999-10-01), None
patent: 2001-147659 (2001-05-01), None

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