Patent ID: 11886662
Assignee: JAPAN DISPLAY INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A sensing device comprising;
a plurality of sensing electrodes arranged in a row direction and a column direction;
a sensing circuit including a plurality of read-out circuits respectively connected to the plurality of sensing electrodes and a control circuit configured to control the plurality of read-out circuits; and
an arithmetic circuit that processes a sensing signal output from the sensing circuit;, wherein
the plurality of sensing electrodes and the plurality of read-out circuits are connected one-to-one via wiring,
the sensing circuit is configured to store a driving table that stores multiple sampling frequencies different from each other,
the control circuit is configured to read out the multiple sampling frequencies from the driving table, drive simultaneously the plurality of read-out circuits by using the multiple sampling frequencies, and output a plurality of output signals obtained by the driving to the arithmetic circuit, and
the arithmetic circuit is configured to process the plurality of output signals from the control circuit, and to calculate an amount of noise.