| 摘要 |
An active matrix liquid crystal display device having a redundancy structure implemented by forming loops of drain lines by connecting two or more abutted drain lines, and providing sampling transistors on both sides of the display panel thereof or the like, so as to be able to deal with short circuits in drain lines and defects in driving TFTs occurring during manufacture, thereby providing an improved quality of display which will not deteriorate even if defects occur, thus preventing the loss of function in a display device. The drive signals for the sampling transistors which control signals to be applied to respective drain lines in a drive circuit for driving liquid crystal elements are reversed in polarity for every frame in order to suppress the occurrence of flicker or the like in the display screen so as to attain a clean, clear and high-quality screen display.
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