公开(公告)号：US20240258482A1

公开(公告)日：2024-08-01

申请号：US18401141

申请日：2023-12-29

Applicant: LG Display Co., Ltd.

Inventor： Daeyoung SEO ,  Jongsung KIM ,  Yongmin HA

IPC: H01L33/62 ,  H01L25/16 ,  H01L27/12

CPC classification number: H01L33/62 ,  H01L25/167 ,  H01L27/124

Abstract: In a display device according to an embodiment of the present disclosure, a redundant light-emitting element is disposed on a line substrate separate from a panel unit in which the main light-emitting element is included, thereby reducing occurrence of a defective pixel due to a defective main light-emitting element.

公开(公告)号：US20240128243A1

公开(公告)日：2024-04-18

申请号：US18376067

申请日：2023-10-03

Applicant: LG Display Co., Ltd.

Inventor： Daeyoung SEO ,  Hun JANG

IPC: H01L25/075 ,  H01L33/38 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L33/385 ,  H01L33/62

Abstract: A display device includes a substrate in which a plurality of sub pixels is defined; a first lower assembly electrode disposed in each of the plurality of sub pixels; an interlayer insulating layer disposed below the first lower assembly electrode; a second lower assembly electrode disposed below the interlayer insulating layer; a passivation layer disposed on the first lower assembly electrode and the second lower assembly electrode; and a first upper assembly electrode and a second upper assembly electrode which are disposed on the passivation layer and are disposed to be spaced apart from each other, and a minimum interval of the first lower assembly electrode and the second lower assembly electrode is smaller than a minimum interval of the first upper assembly electrode and the second upper assembly electrode on the plane.

公开(公告)号：US20220037440A1

公开(公告)日：2022-02-03

申请号：US17388819

申请日：2021-07-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Hun JANG ,  Daeyoung SEO ,  Soyoung LEE

IPC: H01L27/32

Abstract: A pixel comprises a pixel circuit connected to gate and data lines, and a light emitting diode having a first electrode connected to the pixel circuit, wherein the pixel circuit may include a driving thin film transistor connected to the first electrode of the light emitting diode, a first capacitor formed in a horizontal direction between a gate electrode and a source electrode of the driving thin film transistor, and a second capacitor formed in a vertical direction between the gate electrode of the driving thin film transistor and the first electrode of the light emitting diode.

公开(公告)号：US20180120614A1

公开(公告)日：2018-05-03

申请号：US15682944

申请日：2017-08-22

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungHwan SHIN ,  Gyutae KANG ,  Daeyoung SEO ,  Soyoung LEE ,  YoungMin JEONG

IPC: G02F1/133 ,  G02F1/1368 ,  G02F1/1362 ,  H01L27/144 ,  G09G3/36

Abstract: A display panel and display device are provided that may be capable of sensing an external light source, such as a laser. The display device may include a display panel including gate lines, data lines, and sub-pixels defined at intersections between the gate lines and the data lines; a light source-sensing circuit in an inactive area of the sub-pixels to sense an external light source; and a monochromatic color filter pattern disposed on a sensor transistor of the light source-sensing circuit. Thus, the incident amount of an external light source other than a laser can be reduced, and the incident amount of the laser can be increased. Accordingly, it may be possible to decrease an initial off-current caused by an external light source and improve the sensitivity in laser sensing. Thus, the size of the sensor transistor can be reduced and aperture ratio can be increased.

公开(公告)号：US20230217744A1

公开(公告)日：2023-07-06

申请号：US17976557

申请日：2022-10-28

Applicant: LG Display Co., Ltd.

Inventor： EunJi PARK ,  InHyo HAN ,  Daeyoung SEO

IPC: H01L27/32 ,  H01L27/12

CPC classification number: H01L27/3276 ,  H01L27/124 ,  H01L27/3262 ,  H01L27/3265

Abstract: Embodiments of the disclosure relate to a display panel and a display device. Specifically, there may be provided a display panel and display device capable of simplifying the process, by comprising a substrate, first to fourth signal lines and an active layer disposed on the substrate, a first metal layer and a second metal layer disposed on a portion of an upper surface of the active layer and spaced apart from each other, a first insulation film disposed on the first and second metal layers, a second insulation film disposed on the first insulation film, an electrode pattern disposed on the active layer and the first insulation film and not overlapping the second insulation film, and a fifth signal line disposed on the second insulation film and crossing the first to fourth signal lines spaced apart from each other, wherein the first electrode contacts an upper surface of the first metal layer disposed on the active layer, and wherein the fifth signal line is disposed on the same layer as the first electrode.

公开(公告)号：US20230186825A1

公开(公告)日：2023-06-15

申请号：US17978005

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： Daeyoung SEO ,  Youngln JANG

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/0267 ,  G09G2310/0291 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2310/0275

Abstract: Disclosed is a gate driving circuit comprising a plurality of stage circuits dependently connected to each other and configured to output ‘j’ output signals ('j′ is an integer of 2 or more), wherein each of the plurality of stage circuits includes a logic controller for controlling a voltage of each of first and second nodes, and an output circuit unit for outputting each of ‘j’ clock signals as the ‘j’ output signal in response to the voltage of the first node, wherein the output circuit unit includes ‘j’ output buffers for outputting each of the ‘j’ clock signals as the ‘j’ output signal through an output node in response to the voltage of the first node, and a capacitor prepared between the first node and the output node of some of the ‘j’ output buffers.

公开(公告)号：US20220085134A1

公开(公告)日：2022-03-17

申请号：US17461224

申请日：2021-08-30

Applicant: LG Display Co., Ltd.

Inventor： Hun JANG ,  Daeyoung SEO ,  Soyoung LEE

IPC: H01L27/32 ,  G09G3/3225

Abstract: A light emitting display device includes a substrate, a pixel area having an emission area and a non-emission area on the substrate, a light emitting diode disposed in the pixel area, and a pixel driving circuit electrically connected with the light emitting diode and having a driving thin film transistor disposed in the emission area, wherein light emitted from the light emitting diode can be emitted to the outside of the substrate by passing through the substrate.

公开(公告)号：US20190204972A1

公开(公告)日：2019-07-04

申请号：US16223025

申请日：2018-12-17

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungHwan SHIN ,  YoungMin JEONG ,  Daeyoung SEO ,  Soyoung LEE

IPC: G06F3/041 ,  G06F3/042 ,  G06F3/044 ,  G06F3/047 ,  G02F1/1333 ,  G02F1/1362

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/136286 ,  G02F2201/121 ,  G02F2201/123 ,  G06F3/0416 ,  G06F3/042 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04104 ,  G06F2203/04106

Abstract: A display device having an open area and a non-open area surrounding the open area includes a pixel electrode and a common electrode disposed in the open area; a gate line disposed to extend in a first direction in the non-open area surrounding the open area and transmitting a gate signal to the pixel electrode; a data line disposed to extend in a second direction in the non-open area and transmitting a data signal to the pixel electrode; a plurality of sensing lines disposed in the non-open area and transmitting a common voltage or a touch scan signal to the common electrode; and a photo touch sensor disposed in the non-open area and electrically connected to one of the plurality of sensing lines.

公开(公告)号：US20190139989A1

公开(公告)日：2019-05-09

申请号：US16235639

申请日：2018-12-28

Applicant: LG Display Co., Ltd.

Inventor： Youngmin JEONG ,  Seunghwan SHIN ,  Daeyoung SEO ,  Soyoung LEE

IPC: H01L27/12 ,  G02F1/1362

Abstract: A display device is described that has reduced resistance in one or more of the gate, common, data electrical lines that control the operation of the pixels of the display device. Reduced resistance is achieved by forming additional metal and/or metal-alloy layers on the gate, common, and/or data lines in such a manner so that the cross-sectional area of those lines is increased. As a consequence, each such line is formed so as to be thicker than could otherwise be achieving without causing defects in the rubbing process of an alignment layer. Additionally, no widening of these lines is needed, thus preserving the aspect ratio of the device. The gate insulating and semiconducting layers that in part make up the thin film transistors that help control the operation of the pixels of the device may also be designed to take into account the increased thickness of the lines.

公开(公告)号：US20250089423A1

公开(公告)日：2025-03-13

申请号：US18767047

申请日：2024-07-09

Applicant: LG Display Co., Ltd.

Inventor： ByungHyun LEE ,  Daeyoung SEO ,  MinSeok KIM ,  TaeYong KIM ,  Sumin LEE

IPC: H01L33/62 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12 ,  H01L33/40

Abstract: According to an aspect of the present disclosure, a display device includes a substrate configured to define a plurality of pixel areas, and a plurality of transmissive areas disposed between the plurality of pixel areas; a plurality of pixels disposed in the plurality of pixel areas and each including a plurality of sub pixels; light-emitting elements respectively disposed in the plurality of sub pixels and each including a first electrode; and a repair line disposed between a pair of adjacent sub pixels among the plurality of sub pixels, in which the light-emitting elements of the pair of sub pixels are disposed so that the first electrodes are directed toward the repair line. Therefore, the repair line may be formed to repair the plurality of sub pixels when the plurality of sub pixels is defective, thereby improving the yield of the display device.