Electronic circuit having display driving function, touch sensing function and fingerprint sensing function

An electronic device, comprising:

• a panel, comprising touch sensors and fingerprint sensors;
• and
• an electronic circuit, coupled to the panel and adapted to receive fingerprint sensing signals corresponding to a fingerprint image from the fingerprint sensors via fingerprint sensing lines of the panel, the electronic circuit is further configured to:
• select a subset of the fingerprint sensing lines to form a fingerprint sensing zone adapted for a fingerprint sensing operation and comprising at least one boundary based on a fingerprint touch area, wherein the subset of fingerprint sensing lines is selected based on the at least one boundary of the fingerprint sensing zone, and
• generate the fingerprint image according to the fingerprint sensing signals by a remapping operation, wherein the remapping operation comprises rearranging a first part of the fingerprint image obtained from the fingerprint sensing zone and a second part of the fingerprint image obtained from the fingerprint sensing zone.

A method for sensing at least one fingerprint imprint from a panel comprising touch sensors and fingerprint sensors, wherein the fingerprint sensors are coupled to fingerprint sensing lines, the method comprising:

• selecting a subset of the fingerprint sensing lines to form a fingerprint sensing zone having at least one boundary and adapted for a fingerprint sensing operation based on a fingerprint touch area, wherein the subset of fingerprint sensing lines is selected based on the at least one boundary of the fingerprint sensing zone;
• receiving fingerprint sensing signals corresponding to a fingerprint image via the subset of fingerprint sensing lines;
• and
• generating the fingerprint image according to the fingerprint sensing signals using a remapping operation, wherein the remapping operation comprises rearranging a first part of the fingerprint image obtained from the fingerprint sensing zone and a second part of the fingerprint image obtained from the fingerprint sensing zone.