Touch unit, array substrate, liquid crystal cell substrate and touch display device

摘要

The embodiment of the present invention discloses a touch unit, an array substrate, a liquid crystal cell substrate and a touch display device. The touch unit comprise a plurality of touch sub-units, each of which comprising a sensor thin film transistor (TFT), an sensing capacitor, a reading induction line and a memory capacitor, the capacitance of the memory capacitor being less than that of the sensing capacitor. Due to the memory capacitor is added to stabilize the voltage of the sensor TFT, the interference of noise upon the voltage of the sensor TFT is reduced, thus effectively improving the signal stability of the touch unit.

主权项

1. A touch unit, comprising:
a plurality of touch sub-units, each of which comprising a sensor thin film transistor (TFT), an sensing capacitor, a reading induction line and a memory capacitor, capacitance of the memory capacitor being less than that of the sensing capacitor; a gate electrode of the sensor TFT being connected with a gate line of the array substrate; one of source and drain electrodes of the sensor TFT being connected with the reading induction line; one end of the sensing capacitor being connected with the other one of the source and drain electrodes of the sensor TFT; and one end of the memory capacitor being connected with the other one of the source and drain electrodes of the sensor TFT, and the other end being connected with a voltage stabilizing electrode.