US 12,014,564 B2
Electronic circuit and a gate driver circuit
Wei-Lun Shih, Hsinchu (TW); Wu Wei Lin, Taoyuan (TW); and Kuei Jung Chen, Hsinchu County (TW)
Assigned to Novatek Microelectronics Corp., Hsinchu (TW)
Filed by Novatek Microelectronics Corp., Hsinchu (TW)
Filed on Aug. 19, 2021, as Appl. No. 17/407,133.
Claims priority of provisional application 63/080,799, filed on Sep. 21, 2020.
Prior Publication US 2022/0092287 A1, Mar. 24, 2022
Int. Cl. G06V 40/13 (2022.01); G06F 3/041 (2006.01); G09G 3/36 (2006.01)
CPC G06V 40/13 (2022.01) [G06F 3/0412 (2013.01); G09G 3/36 (2013.01); G09G 2300/0408 (2013.01); G09G 2310/0286 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electronic circuit, adapted to control an operation of a gate driver circuit, wherein the gate driver circuit is disposed on a display panel, the electronic circuit comprising:
a gate control circuit, configured to output a plurality of control signals to the gate driver circuit in a display period via a plurality of output nodes of the electronic circuit and output the control signals to the gate driver circuit in a fingerprint sensing period via the same output nodes of the electronic circuit,
wherein the control signals comprise clock signals, a plurality of start pulse signals and at least one switch control signal, and the switch control signal is configured to control the gate driver circuit to operate in the display period or in the fingerprint sensing period,
wherein the display panel is divided into a plurality of fingerprint sensing zones in a column direction of the display panel, and when the gate control circuit outputs the control signals to the gate driver circuit in the fingerprint sensing period, the gate driver circuit drives at least one fingerprint sensing zone of the fingerprint sensing zones to perform a fingerprint sensing operation according to the clock signals and the plurality of start pulse signals of the control signals,
wherein the at least one fingerprint sensing zone to be driven by the gate driver circuit is indicated according to a combination of logic values of the plurality of start pulse signals, and a number of the plurality of start pulse signals is less than a number of the at least one fingerprint sensing zone to be driven by the gate driver circuit.