US 11,854,451 B2
Electronic circuit having display driving function, touch sensing function and fingerprint sensing function
Huan-Teng Cheng, Hsinchu (TW); Ting-Hsuan Hung, Hsinchu (TW); Wei-Lun Shih, Hsinchu (TW); and Huang-Chin Tang, Hsinchu County (TW)
Assigned to Novatek Microelectronics Corp., Hsinchu (TW)
Filed by Novatek Microelectronics Corp., Hsinchu (TW)
Filed on Dec. 16, 2021, as Appl. No. 17/553,730.
Application 17/553,730 is a continuation of application No. 16/907,306, filed on Jun. 21, 2020, granted, now 11,244,135.
Claims priority of provisional application 62/924,671, filed on Oct. 22, 2019.
Claims priority of provisional application 62/912,660, filed on Oct. 9, 2019.
Claims priority of provisional application 62/898,551, filed on Sep. 11, 2019.
Claims priority of provisional application 62/881,912, filed on Aug. 1, 2019.
Prior Publication US 2022/0108557 A1, Apr. 7, 2022
Int. Cl. G06V 40/13 (2022.01); G09G 3/20 (2006.01); G06F 3/041 (2006.01)
CPC G09G 3/20 (2013.01) [G06F 3/0412 (2013.01); G06V 40/13 (2022.01); G06V 40/1318 (2022.01); G09G 2310/0272 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An electronic circuit, adapted to process fingerprint data from a panel including touch sensors and fingerprint sensors, the electronic circuit comprising:
a first circuit, configured to receive touch sensing signals from the touch sensors;
a second circuit, configured to receive fingerprint sensing signals corresponding to at least one fingerprint imprint from the fingerprint sensors via fingerprint sensing lines; and
a control circuit, configured to:
determine a fingerprint touch area according to the touch sensing signals; and
select a subset of the fingerprint sensing lines to form a fingerprint sensing zone adapted for a fingerprint sensing operation and including at least one boundary based on the determined fingerprint touch area,
wherein the subset of fingerprint sensing lines is selected based on the at least one boundary of the fingerprint sensing zone, the at least one boundary of the fingerprint sensing zone comprises a first fingerprint sensing line and a second fingerprint sensing line, and the subset of fingerprint sensing lines comprises all fingerprint sensing lines located between the first fingerprint sensing line and the second fingerprint sensing line,
wherein the fingerprint sensing signals carried on the subset of fingerprint sensing lines are read out by the second circuit at a same time.