公开(公告)号：US10712869B2

公开(公告)日：2020-07-14

申请号：US15680108

申请日：2017-08-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin Chul Lee ,  Choong Hoon Lee ,  Cha Dong Kim ,  Jun Chul Park ,  Dong Wook Lim ,  Yoon Kyung Choi

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch panel controller includes a signal driver charging a plurality of sensor lines extending in a direction with the same charge, by applying a driving signal to one sensor line of sensor lines and applying a mirrored driving signal mirrored from the driving signal to the remaining sensor lines of the sensor lines, and a sensor sensing a change in capacitance from the sensor lines, respectively.

公开(公告)号：US10325138B2

公开(公告)日：2019-06-18

申请号：US15392242

申请日：2016-12-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sun Kwon Kim ,  Choong Hoon Lee ,  Yun Jeong Kim

IPC: G06K9/00

Abstract: A unit pixel of a fingerprint sensor is provided. The unit pixel includes a sensing electrode located to form a capacitance with an object touching a touch surface, a first switch connected between a first node and a second node to transmit at least one driving voltage input through the second node, the first node connected to the sensing electrode, the switch configured to the sensing electrode, an amplifier configured to receive a signal from the sensing electrode and amplify the signal, and a first capacitor connected between a first input terminal and an output terminal of the amplifier, the first capacitor configured to transmit the signal from the sensing electrode to the output terminal. The amplifier is configured to output a different output voltage according to the at least one driving based on an operation of the first switch.

公开(公告)号：US11340732B2

公开(公告)日：2022-05-24

申请号：US16587862

申请日：2019-09-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jin Chui Lee ,  San Ho Byun ,  Yoon Kyung Choi ,  Choong Hoon Lee ,  Bum Soo Kim ,  Ho Suk Na ,  Dong Wook Lim

IPC: G06F3/041 ,  G06F3/044

Abstract: The present inventive concepts relate to a noise compensation device and method of a touch-sensing panel, and to a noise avoiding device and method. The noise compensation device of a touch-sensing device according to some example embodiments includes: a noise compensation signal generator configured to generate mutually different noise compensation signals for at least portions of first to Nth channels included in the touch-sensing panel; and a noise cancelling signal output circuit configured to generate noise-compensated reception signals based on the mutually different noise compensation signals and provide the noise-compensated reception signals to each of at least two channels among the first to Nth channels, wherein N is an integer two or greater.