公开(公告)号：US20190087620A1

公开(公告)日：2019-03-21

申请号：US15943870

申请日：2018-04-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jee-Hwal Kim ,  Seung-Jae LEE ,  Dong-Hui Kim ,  Hong-Kook Lee

IPC: G06K9/00 ,  H04N5/202 ,  G09G3/20

Abstract: An electronic device includes a display panel, a gamma circuit, a driving circuit, and a fingerprint recognition sensor. The gamma circuit generates a first set of gray voltages in a normal operation mode and a fingerprint recognition voltage corresponding to a brightness higher than a maximum gray voltage among the first set of gray voltages. The driving circuit displays an image on the display panel based on the first set of gray voltages in the normal operation mode and a fingerprint recognition window on a portion of the display panel based on the fingerprint recognition voltage in the fingerprint recognition mode. The fingerprint recognition sensor recognizes a fingerprint based on reflected light of the fingerprint received through the fingerprint recognition window.