Source line repair circuit, source driver circuit, liquid crystal display device with source line repair function, and method of repairing source line
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United States of America Patent
Stats
-
Oct 14, 2008
Grant Date -
May 26, 2005
app pub date -
Oct 15, 2004
filing date -
Nov 20, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A source driver circuit provides a source driving signal to a disconnected source line. The source driver circuit includes a shift register, a latch unit, a DAC unit, a buffer unit, and a source line repair circuit. A source line repair circuit receives a common voltage signal and a source driving signal corresponding to the disconnected source line, selects an amplifier having a same polarity type as a polarity type of an amplifier constituting the buffer unit in response to a source driving signal to provide an output signal of the selected amplifier to the disconnected source line. The source driver circuit includes the source line repair circuit which may select the amplifier having the same polarity as the polarity of the amplifier of the buffer, and thus may safely provide the source driving signal to the disconnected source line.
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