SOURCE DRIVER CIRCUIT OF LIQUID CRYSTAL DISPLAY DEVICE
摘要
<p>The present invention relates to a technique for preventing noise data from being displayed before valid data is inputted when a liquid crystal display device is powered on. The invention comprises: a power voltage input unit which divides a VCC power voltage and a VDD power voltage, and outputs the divided voltages, wherein the voltages are divided and outputted by setting an intermediate level of the VDD power voltage to be lower than a level of the VCC power voltage; a power voltage comparator which compares the voltages inputted after having been divided by the power voltage input unit, and outputs an output voltage in a "high" state at a section in which the level of the VCC power voltage is shown in the higher state than the intermediate level of the VDD power voltage; a Schmitt trigger which outputs the output voltage of the power voltage comparator as a reset signal, wherein it prevents the reset signal to sensitively react to the external environment; and a particular voltage supplier which outputs a voltage of a particular level at a section between a first gate start pulse and the reset signal inputted from the Schmitt trigger.</p>
申请公布号
WO2011093550(A1)
申请公布日期
2011.08.04
申请号
WO2010KR01551
申请日期
2010.03.12
申请人
SILICON WORKS CO., LTD;LIM, HUN YONG;CHOI, JUNG HWAN;KIM, AN YOUNG;NA, JOON HO;KIM, DAE SEONG;HAN, DAE KEUN
发明人
LIM, HUN YONG;CHOI, JUNG HWAN;KIM, AN YOUNG;NA, JOON HO;KIM, DAE SEONG;HAN, DAE KEUN