CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent application No. 202011583557.4 filed with CNIPA on Dec. 28, 2020, the disclosure of which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

Embodiments of the present disclosure relate to the field of display technology and, in particular, a touch display screen and a driving method thereof.

BACKGROUND

With the development of human-machine interaction technology, touch technologies are increasingly used in various display apparatuses. Among them, the capacitive touch technology is widely used and favored by users because of the advantages of resistance to wear, long service life, low maintenance cost, support for gesture recognition, and multi-touch.

In the conventional touch display screen, one frame cycle includes a touch control stage and a display stage, and the touch control stage and the display stage are staggered. On the one hand, the duration of the display stage becomes shorter and the display quality of pictures is affected, on the other hand, the touch performance of the touch display screen is poor.

SUMMARY

A touch display screen and a driving method thereof are provided by the present disclosure to improve the display quality of pictures and the touch performance of the touch display screen.

In an embodiment, a driving method of a touch display screen is provided in the present disclosure. The touch display screen includes a substrate, multiple pixels, multiple scanning lines and a touch electrode layer. The multiple scanning lines extend along a first direction and are arranged on one side of the substrate in a second direction, the multiple pixels are arranged as multiple pixel rows extending along the first direction and pixels in each pixel row are electrically connected to at least one scanning line. The touch electrode layer at least partially overlaps the multiple scanning lines in a direction perpendicular to a plane where the substrate is located. The touch electrode layer includes multiple touch electrode rows formed by multiple touch electrodes, the multiple touch electrodes include a special-shaped touch electrode, the multiple touch electrode rows include a special-shaped touch electrode row, the special-shaped touch electrode tow includes the special-shaped touch electrode, and the multiple touch electrode rows extend along the first direction.

The touch display screen includes a display region, the display region includes multiple sub-display regions arranged in the second direction, and the multiple sub-display regions are in one-to-one correspondence with the multiple touch electrode rows and each of the multiple sub-display regions overlaps a respective one of the multiple touch electrode rows. The multiple sub-display regions include at least one special-shaped sub-display region, and the at least one special-shaped sub-display region corresponds to the special-shaped touch electrode row. In the multiple sub-display regions, the multiple scanning lines include first scanning lines and second scanning lines. The first scanning lines overlap edge regions of the multiple touch electrode rows in the second direction and the second scanning lines overlap center regions of the multiple touch electrode rows in the second direction.

The driving method of the touch display screen includes that: one frame cycle includes at least one touch control stage, the at least one touch control stage is staggered from a scanning stage of a pixel row electrically connected to at least one of the first scanning lines and overlaps a scanning stage of a pixel row electrically connected to at least one of the second scanning lines.

In an embodiment, a touch display screen is provided in the present disclosure, and which is driven by the driving method according to the above-mentioned embodiment.

