Patent ID: 11899866
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A display device comprising:
a display panel;
a base layer disposed on the display panel;
a first conductive layer disposed on the base layer;
a plurality of first sensing electrodes formed by the first conductive layer, the plurality of first sensing electrodes including a first group of first sensing electrodes and a second group of first sensing electrodes;
a sensor insulating layer disposed on the first conductive layer;
a base substrate;
a second conductive layer disposed under the base substrate;
a plurality of second sensing electrodes formed by the second conductive layer, the plurality of second sensing electrodes including a third group of second sensing electrodes and a fourth group of second sensing electrodes;
an adhesive layer configured to bond the sensor insulating layer and the second conductive layer; and
a sensor controller configured to provide a transmit signal of an active level to each of a plurality of first sensing electrodes in a first sensing mode, wherein active periods of transmit signals provided to the first sensing electrodes of the first group in the first sensing mode do not overlap each other,
wherein the plurality of first sensing electrodes is formed by the first conductive layer, and a plurality of second sensing electrodes is formed by the second conductive layer,
wherein a first portion of each first sensing electrode of the second group and a first portion of each second sensing electrode of the fourth group is disposed in a fingerprint sensing area and a second portion of each first sensing electrode of the second group and a second portion of each second sensing electrode of the fourth group is disposed in a non-fingerprint sensing area,
wherein the sensor controller sequentially provides transmit signals of an active level to the first sensing electrodes of the second group in a second sensing mode,
wherein the sensor controller maintains the transmit signals provided to the first sensing electrodes of the first group at an inactive level in the second sensing mode,
wherein, in the first sensing mode, first active periods of the transmit signals provided to a first electrode and a second electrode among the first sensing electrodes of the second group overlap each other, second active periods of the transmit signals provided to a third electrode and a fourth electrode among the first sensing electrodes of the second group overlap each other, and the first active periods and the second active periods do not overlap, and
wherein, in the first sensing mode, the active periods of transmit signals provided to the first sensing electrodes of the first group and the first active periods and the second active periods do not overlap each other.