公开(公告)号：US20170300165A1

公开(公告)日：2017-10-19

申请号：US15393125

申请日：2016-12-28

Applicant: LG Display Co., Ltd.

Inventor： MyungHo SHIN ,  SungUk BYUN ,  YongWoo CHOI ,  MinWoo HWANG ,  KiYong KIM ,  Youngho KWON ,  Kyungjin JANG ,  JaeKyu PARK

IPC: G06F3/041 ,  G09G3/20 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04107 ,  G09G3/2092 ,  G09G2330/06

Abstract: A touch sensing method, a touch sensing circuit, and a touch display device perform multifrequency touch driving by varying the frequencies of touch driving signals when sensing a touch or a touched position by outputting pulse-type touch driving by which one or more touch electrodes among a number of touch electrodes disposed on a display panel are driven sequentially. Undesired parasitic capacitance that would otherwise be caused by touch driving signals is prevented from occurring, and EMI influence is reduced.

公开(公告)号：US20210200404A1

公开(公告)日：2021-07-01

申请号：US17116729

申请日：2020-12-09

Applicant: LG Display Co., Ltd.

Inventor： KiYong KIM

IPC: G06F3/041

Abstract: Embodiments of the present disclosure relate to a touch display device, a touch circuit, and a pen sensing method, allows various pen protocols to be adaptively set, thereby sensing various types of pens or sensing a pen by using various pen protocols.

公开(公告)号：US20190196650A1

公开(公告)日：2019-06-27

申请号：US16292141

申请日：2019-03-04

Applicant: LG Display Co., Ltd.

Inventor： KiYong KIM ,  Youngwoo JO

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04107

Abstract: A display device having a built-in touchscreen and a driving chip, a circuit film, and a chip-on-film (COF) type driving circuit included in the display device. The COF type driving circuit performs data driving and touch driving in a combined manner. A source driving circuit outputs image data voltages through data channels. At least one touch driving circuit outputs touch driving signals through touch channels. The source driving circuit and the at least one touch driving circuit are mounted on an integrated circuit film. Data channel lines electrically connected to the data channels and touch channel lines electrically connected to the touch channels are disposed on the integrated circuit film. The noise avoidance line disposed on the integrated circuit film is located outward of an at least one outermost touch channel line.

公开(公告)号：US20220027012A1

公开(公告)日：2022-01-27

申请号：US17350373

申请日：2021-06-17

Applicant: LG DISPLAY CO., LTD.

Inventor： HoonBae KIM ,  HyunWoo JANG ,  KiYong KIM ,  JaeKyu PARK ,  Youngwoo JO ,  SunChul KIM ,  SunYeop KIM ,  Seongkyu KANG

IPC: G06F3/044 ,  G06F3/041

Abstract: Embodiments of the present disclosure relate to a touch display device, a touch circuit and a touch driving method thereof, and more particularly, a touch display device, a touch circuit and a touch driving method thereof enable to reduce effectively a ghost phenomenon in touch electrode groups by dividing a plurality of touch electrodes into a plurality of touch electrode groups with same patterns. The touch display device may include a display panel including a touch electrode group in which a plurality of long touch electrodes with long length and a plurality of short touch electrodes with short length in a first direction are alternately arranged in a second direction; and a touch circuit sequentially performing a self-capacitance sensing operation and a mutual-capacitance sensing operation for the touch electrode group.

公开(公告)号：US20200210022A1

公开(公告)日：2020-07-02

申请号：US16712015

申请日：2019-12-12

Applicant: LG Display Co., Ltd.

Inventor： KiYong KIM ,  HyeongWon KANG ,  Youngwoo JO ,  HongJu LEE

IPC: G06F3/044

Abstract: A touch display device includes: a touch panel including N touch electrodes; a sensor sensing unit block including M sensor sensing units and to sense two or more touch electrodes among the N touch electrodes; a front multiplexer to select two or more touch electrodes from among the N touch electrodes and connect the selected touch electrodes to the sensor sensing unit block. The front multiplexer is configured to select M touch electrodes, which are disposed in a sensing active region corresponding to a first sensing period, from among the N touch electrodes, and to match and connect the M touch electrodes to the M sensor sensing units, wherein M is greater than or equal to 2, and N is greater than M. The M sensor sensing units are configured to simultaneously sense the M touch electrodes disposed in the sensing active region during the first sensing period.

公开(公告)号：US20180232099A1

公开(公告)日：2018-08-16

申请号：US15955490

申请日：2018-04-17

Applicant: LG Display Co., Ltd.

Inventor： KiYong KIM ,  Youngwoo JO

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04107

Abstract: A display device having a built-in touchscreen and a driving chip, a circuit film, and a chip-on-film (COF) type driving circuit included in the display device. The COF type driving circuit performs data driving and touch driving in a combined manner. A source driving circuit outputs image data voltages through data channels. At least one touch driving circuit outputs touch driving signals through touch channels. The source driving circuit and the at least one touch driving circuit are mounted on an integrated circuit film. Data channel lines electrically connected to the data channels and touch channel lines electrically connected to the touch channels are disposed on the integrated circuit film. The noise avoidance line disposed on the integrated circuit film is located outward of an at least one outermost touch channel line.

公开(公告)号：US20180059861A1

公开(公告)日：2018-03-01

申请号：US15729474

申请日：2017-10-10

Applicant: LG Display Co., Ltd.

Inventor： KiYong KIM ,  Youngwoo JO

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04107

Abstract: A display device having a built-in touchscreen and a driving chip, a circuit film, and a chip-on-film (COF) type driving circuit included in the display device. The COF type driving circuit performs data driving and touch driving in a combined manner. A source driving circuit outputs image data voltages through data channels. At least one touch driving circuit outputs touch driving signals through touch channels. The source driving circuit and the at least one touch driving circuit are mounted on an integrated circuit film. Data channel lines electrically connected to the data channels and touch channel lines electrically connected to the touch channels are disposed on the integrated circuit film. The noise avoidance line disposed on the integrated circuit film is located outward of an at least one outermost touch channel line.

公开(公告)号：US20130143464A1

公开(公告)日：2013-06-06

申请号：US13685558

申请日：2012-11-26

Applicant: LG Display Co., Ltd.

Inventor： KiYong KIM ,  JaeKyun LEE ,  JaeYoung OH ,  YongSu AN ,  SungKi KIM ,  JaeWon LEE ,  Dongkyu LEE

IPC: G02F1/1335

CPC classification number: G02F1/133514 ,  G02F1/1303 ,  G02F1/133351

Abstract: In a method for fabricating a lightweight and thin liquid crystal display (LCD), a first mother substrate, a subsidiary substrate and a thin second mother substrate are provided. An edge cut is formed by cutting edges of the first and second mother substrates and the subsidiary substrate to be inclined at a predetermined angle. An array process is performed on the first mother substrate. The subsidiary substrate is attached to the second mother substrate. A color filter process is performed on the second mother substrate having the subsidiary substrate attached thereto. The first and second mother substrates are attached together. The subsidiary substrate is separated from the first and second substrates by spraying air between the second mother substrate and the subsidiary substrate, in which the edge cut is formed.

Abstract translation: 在制造轻量级薄型液晶显示器（LCD）的方法中，提供第一母基板，辅助基板和薄的第二母基片。 通过切割第一母基板和第二母基板的辅助基板的边缘以预定的角度倾斜来形成边缘切割。 在第一母基板上进行阵列处理。 辅助基板附接到第二母基板。 在附着有辅助基板的第二母基板上进行滤色器处理。 第一和第二母基片连接在一起。 通过在形成边缘切割的第二母体基板和辅助基板之间喷射空气，将辅助基板与第一和第二基板分离。