| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid crystal display device and its driving method by which a black signal can be written after writing an image signal within one frame period without dividing a signal into an image signal and a black signal in a horizontal scanning period. SOLUTION: The liquid crystal display device is equipped with: pixels 64; image signal switches 30 connected to signal lines 63 and a signal line driving circuit 90; precharge switches 40 connected to signal lines 62 and a precharge voltage supply circuit 41; and a scanning line driving circuit 70 to sequentially supply a scanning line signal including a first signal and a second signal within one frame period to the respective scanning lines 62. An image signal is written in the pixel 64 when the image signal switch 30 is turned into an ON state in the period of supplying the first signal from the scanning line driving circuit 70. A precharge voltage is written when only the precharge switch 40 is turned into an ON state in the period of supplying the second signal. COPYRIGHT: (C)2006,JPO&NCIPI
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