Data driver used in a current-driving display device

Details Data driver used in a current-driving display device Data driver used in a current-driving display device

2011-01-04

2011-01-04

Jeanglaude, Jean B (Department: 2819)

Coded data generation or conversion

Digital pattern reading type converter

C341S136000, C341S135000, C341S144000

Reexamination Certificate

active

07864074

ABSTRACT:
A data driver used in a current-driving display device for receiving a digital signal and for outputting a gray-scaled current signal to a data line. The data driver includes a digital-to-analog current converter for transforming the digital signal into an analog current signal, a current-copying/reproducing module, and a control circuit. The current-copying/reproducing module is used to store a predetermined voltage for conducting the analog current signal in a transforming/storing status and to conduct a reproducing current signal to the data line in a reproducing/sustaining status. The control circuit is electrically connected between the digital-to-analog current converter and the current-copying/reproducing module for providing a switch between the transforming/storing status and the reproducing/sustaining status. The reproducing current signal is the gray-scaled current signal and is almost equivalent to the analog current signal.

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