Patent ID: 6683593
Filing Date: 2004-01-27
Classification: G09G

Abstract:
A liquid crystal display comprising:a display panel; a signal driver configured to supply video signals to signal lines; a scan driver configured to supply scan signals to scan lines that intersect the signal lines; and an external driver configured to drive the signal and scan drivers, wherein: the display panel has an array substrate, a counter substrate, and a liquid crystal layer held between the array substrate and the counter substrate, the array substrate has the signal and scan lines, pixel switching elements formed at corresponding intersections of the signal and scan lines, respectively, and pixel electrodes connected to the pixel switching elements, respectively, the counter substrate has counter electrodes that face the pixel electrodes, respectively, the signal driver has positive video buses for transmitting positive video signals, negative video buses for transmitting negative video signals, p-TFT switches each connected to one of the positive video buses through wiring, and n-TFT switches each connected to one of the negative video buses through wiring, the p-TFT and n-TFT switches are driven to selectively transmit the positive and negative video signals to the pixel switching elements, and among the p-TFT and n-TFT switches, adjacent P-TFT and n-TFT switches form a switch pair and are connected to one of the signal lines, and a p-TFT switch connected to a â€œ2Nâˆ’1â€ th (N being a natural number) one of the signal lines and a p-TFT switch connected to a â€œ2Nâ€ th one of the signal lines have source electrodes connected to a common contact hole that is connected to one of the positive video buses.