DA converter, data line driving circuit, electro-optical...

Details DA converter, data line driving circuit, electro-optical... DA converter, data line driving circuit, electro-optical...

2005-04-13

2009-02-03

Awad, Amr (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

C327S103000

Reexamination Certificate

active

07486285

ABSTRACT:
To simplify s configuration of a current mode DA converter. A data line driving circuit includes DA converting units U1to Un. Each DA converting unit U1to Un a voltage DA converting circuit for generating an analog voltage signal Sv based on image data, a V/I converting circuit for converting the analog voltage signal Sv into an analog current signal Si, and a voltage current selector for selecting one of the analog voltage signal Sv and the analog current signal Si based on a pre-charge control signal CTL. In addition, the analog voltage signal Sv outputted from the voltage current selector serves as a pre-charge voltage, and the analog current signal Si serves as a driving current of an OLED element.

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