公开(公告)号：US20180107338A1

公开(公告)日：2018-04-19

申请号：US15785115

申请日：2017-10-16

Applicant: LG Display Co., Ltd.

Inventor： JuneGun CHUNG

IPC: G06F3/041 ,  G06F3/044

Abstract: Disclosed are a touch display device, a touch system, a touch master, and a communication method and, more particularly, are a touch display device, a touch system, a touch master, and a communication method which can provide a communication protocol and a communication interface based on a master-slave system in which a touch driving device operates as a touch slave and a touch controller operates as a touch master. Communication between the touch driving device and the touch controller can be accurately and rapidly performed and data transmission efficiency can increase.

公开(公告)号：US20210200413A1

公开(公告)日：2021-07-01

申请号：US17113781

申请日：2020-12-07

Applicant: LG DISPLAY CO., LTD.

Inventor： HyunWoo JANG ,  JuneGun CHUNG ,  Youngwoo JO ,  HongJu LEE

IPC: G06F3/041 ,  G06F3/044

Abstract: Provided are a touch display device and a touch driving method thereof. Touch electrodes are grouped into a touch sensing block and non-touch blocks. The touch electrodes in the touch sensing block and the touch electrodes in the non-touch blocks are sensed at different sensing ratios. Power consumption is efficiently managed and sensitivity in touch sensing is maintained.

公开(公告)号：US20210200356A1

公开(公告)日：2021-07-01

申请号：US17116358

申请日：2020-12-09

Applicant: LG DISPLAY CO., LTD.

Inventor： JuneGun CHUNG

IPC: G06F3/041

Abstract: A communication interface that can decrease a transmission time between a touch driving circuit and a touch controller at the time of performing a pen touch sensing operation is provided. The touch display device can include a touch panel in which touch electrodes are arranged; a touch controller that outputs a first master signal to a first master pin corresponding to one end of a first interface, outputs a second master signal to a second master pin corresponding to one end of a second interface, receives first slave data from the first master pin, and receives second slave data from the second master pin; and a touch driving circuit that receives the first and second master signals, and outputs the first slave data to a first slave pin and outputs the second slave data to a second slave pin in response to the first master signal and the second master signal.

公开(公告)号：US20190196644A1

公开(公告)日：2019-06-27

申请号：US16222225

申请日：2018-12-17

Applicant: LG DISPLAY CO., LTD.

Inventor： JuneGun CHUNG

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/044

Abstract: The present disclosure provides a touch driving circuit, a touch display device, and a pen data recognition method by a touch circuit, and the touch circuit supplies a touch driving signal to two or more touch electrodes from among the plurality of touch electrodes in a pen data mode, generates sensing data for recognizing pen data which is transmitted from an active pen via the two or more touch electrodes in response to the touch driving signal, and performs range conversion and merger of two or more pieces of sensing data generated by detecting the pen data of same bit value, so as to generate summation sensing data.