IN-CELL TOUCH PANEL AND DISPLAY DEVICE

摘要

An in-cell touch panel and a display device are disclosed, a common electrode layer is reused as self-capacitance electrodes in accordance with self-capacitance principle. A pattern of common electrode layer is designed such that the common electrode layer is partitioned into a plurality of mutually independent self-capacitance electrodes along strip-like slits and a direction crossing the slits. The touch sensing chip can determine a touch position by detecting capacitance value variation of self-capacitance electrodes in a touch period. The in-cell touch panel can save production costs and improve production efficiency, and also can avoid light leakage caused by cutting common electrode layer and influence on display effect.

主权项

1. An in-cell touch panel comprising: a first substrate and a second substrate disposed oppositely to each other, a common electrode layer comprising a plurality of strip-like slits disposed on a side of the second substrate, which side faces the first substrate, and a touch sensing chip; wherein
the common electrode layer comprises a plurality of mutually independent self-capacitance electrodes distributed along the strip-like slits and a direction crossing the strip-like slits; and the touch sensing chip is configured to apply common electrode signals to the self-capacitance electrodes in a display time period and determine touch positions by detecting capacitance value variation of self-capacitance electrodes in a touch time period.