公开(公告)号：US20210064170A1

公开(公告)日：2021-03-04

申请号：US16901799

申请日：2020-06-15

Applicant: LG Display Co., Ltd.

Inventor： KwangJo HWANG ,  HongChul KIM ,  YongChan PARK

IPC: G06F3/041 ,  G06F3/01 ,  G06F3/044 ,  G09G3/20

Abstract: The present disclosure relates to a touch display device and a driving method of the same, and more particularly, to a touch display device, in which a touch is sensed by only utilizing electrodes and a line structure for display so that there is no need to provide a touch panel additionally or form additional touch electrodes in a display panel, thereby reducing the size (thickness) of the touch display device and simplifying a manufacturing process of the touch display device, and a driving method of the same.

公开(公告)号：US20210004098A1

公开(公告)日：2021-01-07

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: G06F3/044 ,  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：US20200026383A1

公开(公告)日：2020-01-23

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

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：US20190138128A1

公开(公告)日：2019-05-09

申请号：US16176478

申请日：2018-10-31

Applicant: LG DISPLAY CO., LTD.

Inventor： KwangJo HWANG ,  Sangkyu KIM ,  JiHyun JUNG ,  DeukSu LEE ,  Jaeseung KIM

IPC: G06F3/044 ,  H01L27/32

CPC classification number: G06F3/044 ,  G06F3/04164 ,  G06F3/0443 ,  G06F3/0448 ,  G06F2203/04103 ,  G06F2203/04112 ,  H01L27/323 ,  H01L27/3276 ,  H01L2227/323

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：US20190129548A1

公开(公告)日：2019-05-02

申请号：US16162324

申请日：2018-10-16

Applicant: LG Display Co., Ltd.

Inventor： KwangJo HWANG ,  SuChang AN ,  Yangsik LEE ,  DeukSu LEE

IPC: G06F3/041 ,  H01L51/52 ,  G06F3/044 ,  G06F3/047 ,  H01L27/32

Abstract: A touch display device and panel. In the display panel, an insulating film is provided on and in contact with an encapsulating layer, thereby reducing the entire thickness of the panel. The fabrication process of the touch display panel is simplified, thereby facilitating fabrication of the touch display device and panel.

公开(公告)号：US20190258343A1

公开(公告)日：2019-08-22

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：US20190129565A1

公开(公告)日：2019-05-02

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 ,  G09G3/3208 ,  G06F3/044

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：US20180348911A1

公开(公告)日：2018-12-06

申请号：US15993965

申请日：2018-05-31

Applicant: LG Display Co., Ltd.

Inventor： JaeGyun LEE ,  KwangJo HWANG ,  JiHyun JUNG ,  DeukSu LEE ,  SuChang AN ,  Ruda RHE ,  Yangsik LEE

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04107 ,  G06F2203/04112

Abstract: Disclosed is related to a touch display device and a touch panel and, more specifically, relate to a touch display device and a touch panel having a structure capable of reducing a deviation of the parasitic capacitance, which is generated in touch sensor metals, such as touch electrodes or touch lines. According to the aspects of the disclosure, it is possible to reduce a parasitic capacitance deviation, thereby improving touch sensitivity.

公开(公告)号：US20220374103A1

公开(公告)日：2022-11-24

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

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：US20200050311A1

公开(公告)日：2020-02-13

申请号：US16660356

申请日：2019-10-22

Applicant: LG Display Co., Ltd.

Inventor： Ruda RHE ,  KwangJo HWANG ,  JiHyun JUNG ,  DeukSu LEE ,  SuChang AN ,  JaeGyun LEE ,  Yangsik LEE

IPC: G06F3/041 ,  G06F3/047 ,  G06F3/044

Abstract: The present embodiments generally relate to a display panel and a display device which may recognize touch. A display panel is provided in which a touch sensor and a touch line are disposed in an active area in which a part of an outer edge of the touch line is curved to correspond to a curved shape of the active area in the display panel so that the touch sensing is allowed in display panels having various shapes. Further, a touch display device is provided in which an open area is located between two adjacent touch lines disposed on the display panel so that touch sensing is allowed also in the display panel including an open area such as a hole or a notch.