| 摘要 |
PURPOSE: An LCD data driving circuit is provided to selectively drive one of a plurality of D/A converters according to a gray level of an input display data while blocking the power for the other D/A converters, thereby reducing the power consumption. CONSTITUTION: An LCD data driving circuit includes a timing controller(3) for outputting timing formatted input data and a selection signal for selecting a converter to drive, a plurality of D/A converters(5a,5b) for converting the signals output from the timing controller to analog signals per gray level and outputting the analog signals according to the selection signal of the timing controller, and a plurality of amplifiers(7a,7b,7n,8a,8b,8n) for amplifying the signals output from the D/A converters to an LCD panel.
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