公开(公告)号：US10261625B2

公开(公告)日：2019-04-16

申请号：US15388764

申请日：2016-12-22

Applicant: LG DISPLAY CO., LTD.

Inventor： Seungwan Cho ,  Kwangjo Hwang ,  Sungho Hong ,  Byeongseong So ,  Ruda Rhe

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G09G3/20

Abstract: The present disclosure relates to a touch sensor integrated display device capable of preventing generation of a defective image between touch/common electrodes, which includes a plurality of gate lines and a plurality of data lines intersecting the gate lines, a plurality of pixel electrodes, a plurality of touch/common electrodes and a plurality of touch/common lines. The plurality of pixel electrodes are respectively disposed in regions defined by intersections of the plurality of data lines and the plurality of gate lines and provided with data voltages. The plurality of touch/common electrodes are arranged to generate electric fields with the plurality of pixel electrodes and to correspond to parts of the plurality of pixel electrodes. The plurality of touch/common lines are respectively connected to the plurality of touch/common electrodes. Each touch/common electrode overlap with at least one gate line shared by neighboring touch/common electrodes arranged in a data line arrangement direction.

公开(公告)号：US20170116945A1

公开(公告)日：2017-04-27

申请号：US15299592

申请日：2016-10-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Seungwan Cho ,  Seungho Heo

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G02F1/133308 ,  G09G3/3688 ,  G09G2310/0248 ,  G09G2310/0283 ,  G09G2310/0286 ,  G09G2310/061

Abstract: A display device includes a display panel and a shift register generating a gate pulse and sequentially outputting the gate pulse to gate lines in response to a voltage at a Q node of each of dependently connected stages. An nth (n is a natural number) stage of the shift register includes a pull-up transistor, a start controller, a reset controller, and a first reset output terminal controller. A first reset output controller outputs a reset signal to a reset signal output terminal at a timing at which a second clock signal and a first output control signal output in a non-display period are synchronized.

公开(公告)号：US10474265B2

公开(公告)日：2019-11-12

申请号：US15712423

申请日：2017-09-22

Applicant: LG Display Co., Ltd.

Inventor： Byeongseong So ,  Kitae Kwon ,  Kyujin Kim ,  Seungwan Cho

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G09G3/36 ,  G11C19/28

Abstract: A touch sensor integrated type display device includes: a display panel including first and second panel blocks (PBs), each including a pixel array with embedded touch sensors, a display driving circuit providing image data to pixels of the first and second PBs during a display period, and a touch sensing circuit driving the touch sensors of the first and second PBs during a touch sensing period, the display driving circuit including a shift register sequentially providing gate pulses (GPs) to gate lines, the shift register including: a first stage group (SG) applying a GP to gate lines in the first PB, a bridge stage connected in cascade to a last stage of the first SG, and providing a first carry signal, and a second SG applying a GP to gate lines in the second PB, a first stage of the second SG operating in response to the first carry signal.

公开(公告)号：US10217426B2

公开(公告)日：2019-02-26

申请号：US15299592

申请日：2016-10-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Seungwan Cho ,  Seungho Heo

IPC: G09G3/36 ,  G02F1/1333

Abstract: A display device includes a display panel and a shift register generating a gate pulse and sequentially outputting the gate pulse to gate lines in response to a voltage at a Q node of each of dependently connected stages. An nth (n is a natural number) stage of the shift register includes a pull-up transistor, a start controller, a reset controller, and a first reset output terminal controller. A first reset output controller outputs a reset signal to a reset signal output terminal at a timing at which a second clock signal and a first output control signal output in a non-display period are synchronized.

公开(公告)号：US10216319B2

公开(公告)日：2019-02-26

申请号：US15295838

申请日：2016-10-17

Applicant: LG Display Co., Ltd.

Inventor： Seungwan Cho ,  Byeongseong So

IPC: G06F3/041 ,  G09G3/36 ,  G06F3/044

Abstract: A display device includes a display panel including a display driving circuit, and a touch sensing circuit. The display panel includes first and second panel blocks, each including pixel arrays including touch sensors. The display driving circuit includes a shift register for sequentially outputting a gate pulse applied to a gate line. The shift register includes first and second shift registers and a compensation stage. The first shift register applies a gate pulse to gate lines arranged in the first panel block, and the second shift register applies a gate pulse to gate lines arranged in the second panel block during at least a portion of the display period when a node of the second shift register is charged to a predetermined level. The compensation stage charges the node of the second shift register upon receiving a bridge clock during a touch sensing period of the first panel block.