| 摘要 |
A source drive circuit, a liquid crystal display panel, and a drive method therefor. The source drive circuit comprises multiple output channels. Each output channel (500) comprises: a data temporary storage module (501), used for generating a first drive signal according to a received digital imaging signal; a digital-to-analog conversion module (503), connected to the data temporary storage module (501) and used for carrying out digital-to-analog conversion on the first drive signal to acquire a first analog imaging signal; a buffer amplification module (504), connected to the digital-to-analog conversion module (503) and used for amplifying the first analog imaging signal to acquire a second analog imaging signal; and a screen clearing module (505), connected to the buffer amplification module (504) and used for lowing a signal outputted by the buffer amplification module (504) according to a source selection signal to release charges coupled to liquid crystals. The source drive circuit can effectively remove charges coupled to liquid crystals due to touch detection scanning when an In-cell liquid crystal display panel is in a standby mode, which prevents the liquid crystals in the same polarity for a long time from being polarized. |
