| 摘要 |
A digital image signal fed from the drain signal line is written into a retaining circuit through a pixel element selection TFT and a liquid crystal displays an image based on the digital image signal. In the retaining circuit, a threshold voltage of the first inverter circuit is set smaller than a threshold voltage of the second inverter circuit. Therefore, false writing of the image signal data into the retaining circuit can be prevented, leading to an accurate display the image signal retained in the retaining circuit.
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