公开(公告)号：US10795483B2

公开(公告)日：2020-10-06

申请号：US16505057

申请日：2019-07-08

Applicant: LG DISPLAY CO., LTD.

Inventor： KwangJo Hwang ,  HwiDeuk Lee ,  Yangsik Lee

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32

Abstract: Discussed is a touch display device having a touch circuit that includes an operational amplifier having a first input terminal for inputting a reference voltage, a second input terminal connected to a sensing target touch electrode, and an output terminal for outputting an output voltage, and wherein a common voltage applied to a common electrode and a reference voltage inputted to the first input terminal of the operational amplifier are synchronized with each other.

公开(公告)号：US10324575B2

公开(公告)日：2019-06-18

申请号：US15822464

申请日：2017-11-27

Applicant: LG Display Co., Ltd.

Inventor： KwangJo Hwang ,  DeukSu Lee ,  JaeGyun Lee ,  Yangsik Lee

IPC: G06F3/044

Abstract: A touch display device and a touchscreen panel. Even in the case in which touch electrodes have different sizes or shapes or a located in different positions, a difference in capacitance is not formed among the touch electrodes. High touch sensitivity can be obtained. The touch display device comprises a plurality of touch electrodes, wherein a first touch electrode of the plurality of touch electrodes occupies a first area and comprises first mesh-shaped electrode metal. The touch display device comprises first dummy metal in a same layer as the first mesh-shaped electrode metal and in the first area occupied by the first touch electrode, the first dummy metal being electrically disconnected from the first mesh-shaped electrode metal.

公开(公告)号：US11762523B2

公开(公告)日：2023-09-19

申请号：US17881547

申请日：2022-08-04

Applicant: LG Display Co., Ltd.

Inventor： KwangJo Hwang ,  DeukSu Lee ,  JaeGyun Lee ,  Yangsik Lee

IPC: G06F3/044

CPC classification number: G06F3/0446 ,  G06F3/0445 ,  G06F2203/04112

Abstract: A touch display device and a touchscreen panel. Even in the case in which touch electrodes have different sizes or shapes or a located in different positions, a difference in capacitance is not formed among the touch electrodes. High touch sensitivity can be obtained. The touch display device comprises a plurality of touch electrodes, wherein a first touch electrode of the plurality of touch electrodes occupies a first area and comprises first mesh-shaped electrode metal. The touch display device comprises first dummy metal in a same layer as the first mesh-shaped electrode metal and in the first area occupied by the first touch electrode, the first dummy metal being electrically disconnected from the first mesh-shaped electrode metal.

公开(公告)号：US11687198B2

公开(公告)日：2023-06-27

申请号：US17737923

申请日：2022-05-05

Applicant: LG DISPLAY CO., LTD.

Inventor： KwangJo Hwang ,  Sangkyu Kim ,  JiHyun Jung ,  DeukSu Lee ,  Jaeseung Kim

IPC: G06F3/041 ,  G06F3/044 ,  H10K59/40 ,  H10K59/131 ,  H10K59/12

CPC classification number: G06F3/044 ,  G06F3/0443 ,  G06F3/0448 ,  G06F3/04164 ,  H10K59/40 ,  G06F2203/04103 ,  G06F2203/04112 ,  H10K59/1201 ,  H10K59/131

Abstract: An aspect of the present disclosure may provide a display device including: a light-emitting layer including a plurality of light-emitting areas; a plurality of touch wiring lines arranged in a first direction so as to overlap the light-emitting area; and a touch electrode formed on the plurality of touch wiring lines. Further, a method of manufacturing the display device may be provided.

公开(公告)号：US11327610B2

公开(公告)日：2022-05-10

申请号：US17028661

申请日：2020-09-22

Applicant: LG Display Co., Ltd.

Inventor： KwangJo Hwang ,  Sangkyu Kim ,  JiHyun Jung ,  DeukSu Lee ,  Jaeseung Kim

IPC: G06F3/045 ,  G06F3/044 ,  H01L27/32 ,  G06F3/041

Abstract: An aspect of the present disclosure may provide a display device including: a light-emitting layer including a plurality of light-emitting areas; a plurality of touch wiring lines arranged in a first direction so as to overlap the light-emitting area; and a touch electrode formed on the plurality of touch wiring lines. Further, a method of manufacturing the display device may be provided.

公开(公告)号：US11036342B2

公开(公告)日：2021-06-15

申请号：US16397955

申请日：2019-04-29

Applicant: LG Display Co., Ltd.

Inventor： KwangJo Hwang ,  DeukSu Lee ,  JaegYun Lee ,  Yangsik Lee

IPC: G06F3/044

Abstract: A touch display device and a touchscreen panel. Even in the case in which touch electrodes have different sizes or shapes or a located in different positions, a difference in capacitance is not formed among the touch electrodes. High touch sensitivity can be obtained. The touch display device comprises a plurality of touch electrodes, wherein a first touch electrode of the plurality of touch electrodes occupies a first area and comprises first mesh-shaped electrode metal. The touch display device comprises first dummy metal in a same layer as the first mesh-shaped electrode metal and in the first area occupied by the first touch electrode, the first dummy metal being electrically disconnected from the first mesh-shaped electrode metal.

公开(公告)号：US10712853B2

公开(公告)日：2020-07-14

申请号：US16156853

申请日：2018-10-10

Applicant: LG Display Co., Ltd.

Inventor： KwangJo Hwang ,  Taeyun Kim ,  Sangkyu Kim ,  Ruda Rhe ,  DeukSu Lee

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3233

Abstract: A power supply and a method of driving the same. A converter receives an input voltage from a battery and outputs a first voltage through an output terminal, such that a ground voltage of the output terminal changes. A pulse width modulation (PWM) controller controls the converter to adjust the voltage level of the first voltage. The ground voltage is applied to the converter as a direct current (DC) voltage during a first time and as a pulse wave having a predetermined amplitude during a second time. The PWM controller controls the first voltage to have different voltage levels during the first time and the second time.

公开(公告)号：US10572060B2

公开(公告)日：2020-02-25

申请号：US15813040

申请日：2017-11-14

Applicant: LG Display Co., Ltd.

Inventor： Yangsik Lee ,  KwangJo Hwang ,  JiHyun Jung ,  DeukSu Lee ,  SuChang An ,  JaeGyun Lee ,  Ruda Rhe

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  H01L51/52

Abstract: An embodiment disclosed herein provides a sensing unit that senses a touch corresponding to a capacitance formed by a first electrode and a second electrode. The first electrode includes a first driving electrode pattern and a first sensing electrode pattern, the first sensing electrode pattern being disposed in the first driving electrode pattern, the second electrode includes a second driving electrode pattern and a second sensing electrode pattern, the second driving electrode pattern being disposed in the second sensing electrode pattern. A first capacitive coupling is formed corresponding to the first touch electrode and the first sensing electrode, a second capacitive coupling is formed corresponding to the second driving electrode and the second sensing electrode, and a third capacitive coupling is formed corresponding to the first touch electrode and the second sensing electrode.