Patent ID: 11907491
Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. A sensing device, comprising:
a sensing unit, including a substrate; a plurality of thin-film transistors and a plurality of sensing electrodes disposed on a side of the substrate; and a ring electrode disposed in a first electrode layer, wherein the first electrode layer is located on a side of a thin-film transistor of the plurality of thin-film transistors away from the substrate, the plurality of sensing electrodes are disposed in the first electrode layer, and the ring electrode is disposed around the plurality of sensing electrodes and does not overlap the sensing electrodes in a direction perpendicular to the substrate;
a driving circuit; and
a signal reading circuit,
wherein:
a gate of the thin-film transistor is electrically connected to the driving circuit through a gate line;
a source of the thin-film transistor is electrically connected to the signal reading circuit through a data line; and
the gate line intersects the data line.