Patent ID: 11954293
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A display apparatus comprising:
a touch panel comprising a plurality of electrodes including first electrodes and second electrodes; and
a touch driver configured to drive the touch panel,
wherein the touch panel comprises:
wherein the touch panel includes the first electrodes extending in a first direction and the second electrodes extending in a second direction and overlapping the first electrodes,
wherein the touch driver is configured to drive the touch panel in a normal mode and a biometric information measurement mode,
wherein the touch driver is configured to apply a transmission signal to the first electrodes by shifting the transmission signal for groups each including N first electrodes such that the N first electrodes in a same group simultaneously receive the transmission signal, where N is a positive integer, in the normal mode, and to apply the transmission signal to the first electrodes by shifting the transmission signal for groups each including Q first electrodes such that the Q first electrodes in a same group simultaneously receive the transmission signal, where Q is a positive integer greater than N, in the biometric information measurement mode,
wherein the touch driver is configured to measure biometric information based on a measurement value received from at least one of the first and second electrodes during a sensing period having K frame periods, where K is a positive integer, in the biometric information measurement mode,
wherein the touch driver is configured to apply the transmission signal having a voltage in the biometric information measurement mode greater than a voltage of the transmission signal in the normal mode, and
wherein the touch driver is configured to adjust the voltage of the transmission signal such that the voltage of the transmission signal increases over time in the biometric information measurement mode.