公开(公告)号：US20150317019A1

公开(公告)日：2015-11-05

申请号：US14333060

申请日：2014-07-16

Applicant: LG Display Co., Ltd.

Inventor： KiJeong LEE ,  ChangHwan SEO

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

CPC classification number: G06F3/0412 ,  G06F1/16 ,  G06F3/044

Abstract: The present disclosure provides a display panel for a display device including a touch electrode divided into first touch unit sensors having a first size and second touch unit sensors having a second size different from the first size. When a horizontal or vertical size of a second touch unit sensor is compared with a first touch unit sensor, the vertical size of the second touch unit sensor is smaller than that of the first touch unit sensor when the horizontal size of the second touch unit sensor is larger than that of the first touch unit sensor and the horizontal size of the second touch unit sensor is smaller than that of the first touch unit sensor when the vertical size of the second touch unit sensor is larger than that of the first touch unit sensor. Therefore, an area deviation of touch unit sensors forming a touch electrode is minimized and thus uniform and superior touch performance may be provided.

Abstract translation: 本公开提供了一种显示装置的显示面板，其包括分为具有第一尺寸的第一触摸单元传感器和具有不同于第一尺寸的第二尺寸的第二触摸单元传感器的触摸电极。 当将第二触摸单元传感器的水平或垂直尺寸与第一触摸单元传感器进行比较时，当第二触摸单元传感器的水平大小时，第二触摸单元传感器的垂直尺寸小于第一触摸单元传感器的垂直尺寸 大于第一触摸单元传感器的尺寸，并且当第二触摸单元传感器的垂直尺寸大于第一触摸单元传感器的垂直尺寸时，第二触摸单元传感器的水平尺寸小于第一触摸单元传感器的水平尺寸 。 因此，形成触摸电极的触摸单元传感器的面积偏差被最小化，因此可以提供均匀和优良的触摸性能。

公开(公告)号：US20220187941A1

公开(公告)日：2022-06-16

申请号：US17357407

申请日：2021-06-24

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungChul PARK ,  KiJeong LEE ,  MinKi KIM ,  ChangHwan SEO

IPC: G06F3/041

Abstract: A touch driving circuit, a touch display device, and a touch driving method are discussed, which are capable of reducing power consumption by dividing into an active mode and an idle mode according to a touch sensing type, shortening the touch driving period in the idle mode and reducing some operations related to the image displaying function.

公开(公告)号：US20240036676A1

公开(公告)日：2024-02-01

申请号：US18378546

申请日：2023-10-10

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungChul PARK ,  KiJeong LEE ,  MinKi KIM ,  ChangHwan SEO

IPC: G06F3/041

CPC classification number: G06F3/04166 ,  G06F3/0416 ,  G06F3/041661 ,  G06F3/04162 ,  G06F3/0412 ,  G09G2310/08 ,  G06F2203/04108 ,  G06F3/03545

Abstract: A touch display device includes a display panel including a plurality of touch electrodes, a touch driving circuit configured to operate in a first mode and a second mode according to a touch sensing type and detect a touch presence or a touch position based on a touch sensing signal received from the plurality of touch electrodes, and a timing controller. The timing controller can generate a first type of touch synchronization signal having a first level for displaying a first image during a first display period of a first display frame and a second level for detecting the touch position during a touch driving period of the first display frame, and supply the first type of touch synchronization signal to the touch driving circuit to operate the touch driving circuit in the first mode.

公开(公告)号：US20220206608A1

公开(公告)日：2022-06-30

申请号：US17357522

申请日：2021-06-24

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungMok SHIN ,  Hyunkyung KIM ,  ChangHwan SEO ,  SeungChul PARK ,  KiJeong LEE

IPC: G06F3/041 ,  G09G3/20

Abstract: Discussed are a display panel which can be applied to a touch display device by changing a design of a conductive layer to electrically connect a plurality of pads to a plurality of common electrodes, and a display device and a touch display panel device thereof.

公开(公告)号：US20190179475A1

公开(公告)日：2019-06-13

申请号：US16212124

申请日：2018-12-06

Applicant: LG Display Co., Ltd.

Inventor： ChangHwan SEO ,  NamKyun CHO ,  SeungChul PARK ,  Eunji SEO

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0354

Abstract: Disclosed is a display apparatus capable of sensing a pen touch without malfunction even when a user's hand or palm touches the display apparatus. The display apparatus includes a touch driving circuit dividing a plurality of touch electrodes arranged in a display panel into a plurality of touch groups, supplying a common voltage to the plurality of touch electrodes at each of a plurality of display periods, and sensing a position of a touch pen through some of the plurality of touch electrodes at each of a plurality of pen sensing periods, wherein the touch driving circuit supplies an uplink signal to some of the plurality of touch groups at each of at least one pen position sensing period among the plurality of pen sensing periods and senses a downlink signal transmitted from the touch pen through the touch groups to which the uplink signal has been supplied to generate pen touch raw data.