Cross voltage compensation method for display panel, display panel and display device

A cross voltage compensation method for a display panel, comprising:

• transmitting a preset voltage signal to in-plane data lines after scanning of a scanning line of a last row of a current frame is completed and before scanning of a scanning line of a first row of a next frame is started;
• and
• keeping all the scanning lines at a closed state while transmitting the preset voltage signal to the in-plane data lines;
• wherein transmitting a preset voltage signal to in-plane data lines comprises:
• acquiring a preset voltage signal having a same polarity as data signals of a first row of a next frame;
• and
• transmitting the preset voltage signal having the same polarity as data signals of the first row of the next frame to the in-plane data lines;
• wherein the acquiring a preset voltage signal having a same polarity as data signals of a first row of a next frame comprises:
• acquiring data signals of the first row of the next frame from a timing controller IC after the scanning of the scanning line of the last row of the current frame is completed and before the scanning of the scanning line of the first row of the next frame is started;
• and
• detecting and basing the data signals of the first row of the next frame to acquire the preset voltage signal having the same polarity as the data signals of the first row of the next frame.