Touch-sensing display panel module which improves sensing ability using reset unit and readout unit and related driving method

摘要

An embedded sensor of a touch panel includes at least a readout unit and a reset unit. The total readout length or the total reset length during each sensing period may be larger than the pixel refresh period by introducing other readout units, introducing other reset units, or increasing the enabling period of the gate driving signals, thereby enhancing the sensibility of the touch panel.

主权项

1. A touch-sensing display panel module, comprising:
a plurality of pixels; a plurality of gate lines respectively coupled to the pixels and arranged to provide a plurality of gate control signals for controlling a refresh operation of the plurality of pixels; a plurality of data lines respectively coupled to the pixels for providing pixel voltages; and a sensing unit, comprising:
a signal readout line;a storage unit coupled to a detecting node;a readout unit coupled between the detecting node and the signal readout line, wherein the signal readout line is arranged to receive a voltage level of the detecting node via the readout unit, the readout unit including a first transistor having:
a first end coupled to the signal readout line;a second end coupled to the detecting node; anda control end coupled to a first gate line among the plurality of gate lines for receiving a gate control signal from the first gate line; anda reset unit coupled to the detecting node and arranged to reset the storage unit, the reset unit including:
a second transistor configured to modulate a voltage of the detecting node and having:
a first end coupled to the detecting node;a second end for receiving a first reset signal; anda control end coupled to a second gate line among the plurality of gate lines for receiving a gate control signal from the second gate line; anda third transistor configured to modulate the voltage of the detecting node and having:
a first end coupled to the detecting node;a second end for receiving a second reset signal; anda control end coupled to a third gate line among the plurality of gate lines for receiving a gate control signal from the third gate line,wherein:
the signal readout line is arranged to receive the voltage level of the detecting node via the readout unit; anda time span when the reset unit resets the storage unit between two successive refresh operations of an identical pixel among the plurality of pixels is larger than a time span of one of the two successive refresh operations of the identical pixel.