Data driver and driving method of organic light emitting...

Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion

Reexamination Certificate

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C341S154000

Reexamination Certificate

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07551112

ABSTRACT:
A data driver capable of generating data signals with desired voltage values. The data driver includes a first digital-analog converter including a plurality of first switches, the first digital-analog converter selecting two reference voltages from among a plurality of reference voltages by turning on two of the first switches corresponding to high level bits of data; and a second digital-analog converter for dividing the two reference voltages into a plurality of voltages and for supplying any one of the two reference voltages and the divided voltages corresponding to low level bits of the data as a data signal to an output terminal, wherein the second digital-analog converter includes a transistor turned on by a bias voltage to compensate for a turn-on resistance of the two of the first switches.

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patent: 5841382 (1998-11-01), Walden et al.
patent: 5943000 (1999-08-01), Nessi et al.
patent: 6204785 (2001-03-01), Fattaruso et al.
patent: 6724336 (2004-04-01), Leung et al.
patent: 6778120 (2004-08-01), Matsui
patent: 10-2005-0078449 (2005-08-01), None

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