公开(公告)号：US20190204969A1

公开(公告)日：2019-07-04

申请号：US16162325

申请日：2018-10-16

Applicant: Samsung Display Co., Ltd.

Inventor： Yong Won JO ,  Su Yul SEO ,  Yu Jin CHOI ,  Sung Sik YUN

IPC: G06F3/041 ,  H01L27/32 ,  G06F3/044 ,  G06K9/00

Abstract: A fingerprint sensor includes: a plurality of sensing electrodes provided on one surface of a base substrate, the plurality of sensing electrodes being arranged in a matrix form; and a ground electrode provided on the other surface of the base substrate. The ground electrode includes: a plurality of first lines extending in one direction, the plurality of first lines being parallel to one another; and a plurality of second lines extending in a direction intersecting the first lines, the plurality of second lines being parallel to one another. In a plan view, the first lines and the second lines are provided between adjacent sensing electrodes.

公开(公告)号：US20190102002A1

公开(公告)日：2019-04-04

申请号：US15871285

申请日：2018-01-15

Applicant: Samsung Display Co., Ltd.

Inventor： Dong-Hoon LEE ,  Byung Sun KIM ,  Jeong Kyoo KIM ,  Sun Haeng CHO ,  Yong Won JO ,  Jae Hyung CHO

IPC: G06F3/044 ,  G06F3/045 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/045 ,  G06F2203/04111 ,  G06F2203/04112 ,  G09G2310/0264

Abstract: A touch sensing apparatus including: a touch panel including a first electrode and a second electrode; a driver configured to apply a driving signal to the first electrode; a touch sensor configured to receive a signal transferred depending on the driving signal from the second electrode, and to convert and output the signal as a sensing signal; and a touch controller configured to detect the sensing signal. The touch panel further includes a third electrode and a fourth electrode which transfer noise signals having different magnitudes to the touch sensor, and the touch sensor outputs the sensing signal by using a difference in the noise signals and the signal.