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LIQUID CRYSTAL DISPLAY, APPARATUS FOR DRIVING THE SAME, AND METHOD FOR TESTING THE SAME FOR EASILY TESTING SOURCE PCB
LIQUID CRYSTAL DISPLAY, APPARATUS FOR DRIVING THE SAME, AND METHOD FOR TESTING THE SAME FOR EASILY TESTING SOURCE PCB
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机译:液晶显示器,用于驱动该液晶显示器的设备以及一种用于测试该PCB的方法,以方便地测试源PCB
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摘要
PURPOSE: An LCD(Liquid Crystal Display), an apparatus for driving the LCD and a method for testing the LCD are provided to output a normal common voltage without connecting a gate PCB(Printed Circuit Board) when a source PCB function is tested, to thereby easily test the source PCB function. CONSTITUTION: An LCD includes an LCD panel having a plurality of pixel electrodes, source and gate drivers for driving the LCD panel, and a common voltage generator for applying a common voltage to a common electrode opposite to the pixel electrodes. The common voltage generator includes a plurality of resistors(R1,R2,R3,R4,F5) serially connected between the first voltage and ground, and a buffer(10) for receiving a voltage obtained by dividing the first voltage by the resistors. The common voltage generator further includes the first resistor connected in parallel with a part of the plurality of resistors and formed on a gate PCB, the second resistor connected in parallel with the first resistor and formed on a source PCB, and a switch(20) for selecting connection of the first and second resistors.
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