| 摘要 |
PURPOSE: A voltage supplying apparatus for a liquid crystal panel and a method for controlling a voltage sequence are provided to apply a plurality of voltages according to a predetermined sequence, to drive stably a liquid crystal panel, and to operate normally the liquid crystal panel. CONSTITUTION: A voltage supplying apparatus for a liquid crystal display includes a first and second DC(Direct Current)/DC converters(10,12), a switching unit(Q1) and a gate drive integrated circuit device(20). The first DC/DC converter outputs a first voltage by converting the level of a predetermined constant-voltage. The second DC/DC converter outputs a second voltage by converting the predetermined constant-voltage. The switching unit outputs a third voltage by converting the first voltage on the basis of the level of the second voltage. The gate drive integrated circuit device outputs a signal for driving a liquid crystal panel by determining a turn-off voltage as the second voltage and a turn-on voltage as the third voltage.
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