公开(公告)号：US20160124544A1

公开(公告)日：2016-05-05

申请号：US14741940

申请日：2015-06-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sanghyub Kang ,  San-ho Byun ,  Jinchul Lee ,  Chadong Kim ,  Bumsoo Kim ,  Junchul Park ,  Hojin Park ,  Hyunkyu Ouh ,  Kyunghoon Lee ,  Michael Choi ,  Yoonkyung Choi

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F1/163 ,  G06F3/011 ,  G06F3/03547 ,  G06F3/0418 ,  G06F2203/0339 ,  G06F2203/04108

Abstract: A touch analog front-end (AFE) for a touch sensitive screen may include a transmitter configured to charge a touch panel and a receiver configured to sense the touch panel. The receiver may include a charge-to-voltage (C2V) converter configured to convert a change of capacitance received from the touch panel into a voltage signal, a correlated double sampling (CDS) block configured to convert the voltage signal into a differential signal and to sample each of the positive and the negative signals of the differential signal, and an integrator configured to accumulate a difference between the sampled positive and negative signals.

Abstract translation: 用于触敏屏幕的触摸模拟前端（AFE）可以包括被配置为对触摸面板和被配置为感测触摸面板的接收器充电的发射器。 接收器可以包括被配置为将从触摸面板接收的电容的变化转换为电压信号的电荷 - 电压（C2V）转换器，被配置为将电压信号转换为差分信号的相关双采样（CDS）块，以及 对差分信号的正和负信号进行采样，以及积分器，被配置为累积采样的正和负信号之间的差。

公开(公告)号：US09898149B2

公开(公告)日：2018-02-20

申请号：US14741940

申请日：2015-06-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sanghyub Kang ,  San-ho Byun ,  Jinchul Lee ,  Chadong Kim ,  Bumsoo Kim ,  Junchul Park ,  Hojin Park ,  Hyunkyu Ouh ,  Kyunghoon Lee ,  Michael Choi ,  YoonKyung Choi

IPC: G06F3/044 ,  G06F3/041 ,  G06F1/16 ,  G06F3/01 ,  G06F3/0354

CPC classification number: G06F3/044 ,  G06F1/163 ,  G06F3/011 ,  G06F3/03547 ,  G06F3/0418 ,  G06F2203/0339 ,  G06F2203/04108

Abstract: A touch analog front-end (AFE) for a touch sensitive screen may include a transmitter configured to charge a touch panel and a receiver configured to sense the touch panel. The receiver may include a charge-to-voltage (C2V) converter configured to convert a change of capacitance received from the touch panel into a voltage signal, a correlated double sampling (CDS) block configured to convert the voltage signal into a differential signal and to sample each of the positive and the negative signals of the differential signal, and an integrator configured to accumulate a difference between the sampled positive and negative signals.

公开(公告)号：US20180004326A1

公开(公告)日：2018-01-04

申请号：US15706194

申请日：2017-09-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyoung-rae Kim ,  Yoon-kyung Choi ,  Hwa-hyun Cho ,  Sang-woo Kim ,  Hae-yong Ahn ,  Hyung-dal Kwon ,  Jong-kang Park ,  San-ho Byun ,  Jae-suk Yu

IPC: G06F3/044 ,  G06F1/32 ,  H01L27/32 ,  G06F3/041 ,  G09G3/20 ,  G02F1/1333

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G06F1/3215 ,  G06F1/3237 ,  G06F1/3265 ,  G06F3/0412 ,  G06F3/0418 ,  G09G3/2007 ,  G09G3/2092 ,  G09G2310/08 ,  G09G2354/00 ,  H01L27/323

Abstract: A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.

公开(公告)号：US10768760B2

公开(公告)日：2020-09-08

申请号：US16280243

申请日：2019-02-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyoung-rae Kim ,  Yoon-kyung Choi ,  Hwa-hyun Cho ,  Sang-woo Kim ,  Hae-yong Ahn ,  Hyung-dal Kwon ,  Jong-kang Park ,  San-ho Byun ,  Jae-suk Yu

IPC: G06F3/041 ,  G09G5/00 ,  G06F3/044 ,  H01L27/32 ,  G06F1/3215 ,  G06F1/3237 ,  G06F1/3234 ,  G09G3/20 ,  G02F1/1333

Abstract: A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.

公开(公告)号：US10649591B2

公开(公告)日：2020-05-12

申请号：US15706194

申请日：2017-09-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyoung-rae Kim ,  Yoon-kyung Choi ,  Hwa-hyun Cho ,  Sang-woo Kim ,  Hae-yong Ahn ,  Hyung-dal Kwon ,  Jong-kang Park ,  San-ho Byun ,  Jae-suk Yu

IPC: G06F3/041 ,  G09G3/36 ,  G06F3/044 ,  H01L27/32 ,  G06F1/3215 ,  G06F1/3237 ,  G06F1/3234 ,  G09G3/20 ,  G02F1/1333

Abstract: A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.

公开(公告)号：US20190179456A1

公开(公告)日：2019-06-13

申请号：US16280243

申请日：2019-02-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyoung-rae Kim ,  Yoon-kyung Choi ,  Hwa-hyun Cho ,  Sang-woo Kim ,  Hae-yong Ahn ,  Hyung-dal Kwon ,  Jong-kang Park ,  San-ho Byun ,  Jae-suk Yu

IPC: G06F3/044 ,  H01L27/32 ,  G06F1/3215 ,  G06F3/041 ,  G06F1/3237 ,  G06F1/3234

Abstract: A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.

公开(公告)号：US10156935B2

公开(公告)日：2018-12-18

申请号：US15189528

申请日：2016-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyeong-gon Lee ,  Bum-soo Kim ,  Jun-chul Park ,  Yoon-kyung Choi ,  San-ho Byun ,  Cha-dong Kim ,  Jin-chul Lee

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

Abstract: A touch screen controller is provided. The touch screen controller includes: an offset cancellation circuit configured to cancel offset capacitance of a touch screen panel including a first channel and a second channel crossing the first channel, the offset cancellation circuit connected to the touch screen panel through a sensing node; a charge amplifier configured to generate a sensing voltage from a sensing signal output from the touch screen panel, the charge amplifier including an amplifier having a first input terminal connected to the sensing node and a second input terminal to which an input voltage is applied; and a channel driver configured to provide a driving voltage, which is equal to or greater than the input voltage, to the second channel in a self capacitance sensing mode for the first channel.