公开(公告)号：US10573699B2

公开(公告)日：2020-02-25

申请号：US15818032

申请日：2017-11-20

Applicant: LG DISPLAY CO., LTD.

Inventor： Eunji Park ,  Kilhwan Oh ,  Kihyung Lee

IPC: G06F1/00 ,  H01L27/32 ,  G09G3/3225 ,  H01L27/12

Abstract: The present disclosure relates to a large area ultra high density flat panel display having a high aperture ratio. The present disclosure provides a flat panel display including a driving current line and a sensing line disposed in a first direction on a substrate; a scan line and a sensing gate line disposed in a second direction on the substrate; a horizontal current line disposed at upper side of the scan line in the second direction and connected to the driving current line; a horizontal sensing line disposed at lower side of the sensing gate line in the second direction and connected to the sensing line; a common current line branched from the horizontal current line and crossing the scan line; and a first pixel area and a second pixel area disposed between the driving current line and the sensing line as having a bi-symmetric shape with each other based on the common current line.

公开(公告)号：US11929027B2

公开(公告)日：2024-03-12

申请号：US17988803

申请日：2022-11-17

Applicant: LG DISPLAY CO., LTD.

Inventor： Seongkwang Kim ,  Sungman Han ,  Kihyung Lee

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/0809 ,  G09G2330/08 ,  G09G2330/10

Abstract: A display device includes a first driving transistor of a first subpixel, a second driving transistor of a second subpixel, a first shield metal, a second shield metal, a buffer layer, and an interlayer insulating film; a first source electrode included in the first driving transistor is positioned on or over the interlayer insulating film and electrically connected to the first shield metal through first holes in the interlayer insulating film and the buffer layer; a second source electrode included in the second driving transistor is positioned on or over the interlayer insulating film and electrically connected to the second shield metal through second holes in the interlayer insulating film and the buffer layer; a welding repair line is positioned between the buffer layer and the interlayer insulating film to overlap with at least a part of the first shield metal and be electrically connected to the second source electrode through a hole in the interlayer insulating film.

公开(公告)号：US10418430B2

公开(公告)日：2019-09-17

申请号：US16216282

申请日：2018-12-11

Applicant: LG DISPLAY CO., LTD.

Inventor： Kwangyong Choi ,  Kihyung Lee ,  Sungman Han

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  G09G3/3275 ,  G09G3/3266

Abstract: A display device including a substrate including an emitting region and a non-emitting region; an auxiliary electrode disposed in the non-emitting region; a first passivation film covering the emitting region and the auxiliary electrode in the non-emitting region and including a first passivation hole exposing the auxiliary electrode; an overcoat layer disposed on the first passivation film and includes an over-hole exposing the auxiliary electrode; a first barrier layer disposed on the first passivation film and the overcoat layer and contacting the auxiliary electrode; a second passivation film disposed on the first barrier layer and including a second passivation hole exposing the first barrier layer; a bank layer disposed on the second passivation film and including a bank hole exposing the first barrier layer and having an undercut structure; an organic layer disposed on the bank layer and disconnected by the undercut structure; and a second electrode disposed on the organic layer and contacting the first barrier layer via the bank hole of the bank layer.

公开(公告)号：US20240224680A1

公开(公告)日：2024-07-04

申请号：US18489082

申请日：2023-10-18

Applicant: LG Display Co., Ltd.

Inventor： Seongku Lee ,  Kangll Kim ,  Kihyung Lee ,  Seongkwang Kim

IPC: H10K59/131 ,  H10K59/122

CPC classification number: H10K59/1315 ,  H10K59/122

Abstract: An organic light-emitting display device includes: an auxiliary line disposed between a plurality of sub-pixels, an auxiliary line connection part connected to the auxiliary line, a passivation layer disposed on the auxiliary line connection part and configured to expose a part of the auxiliary line connection part in a contact area, an interlayer insulation layer disposed between the auxiliary line and the passivation layer. The auxiliary line connection part includes: a first auxiliary line connection part disposed below the interlayer insulation layer and connected to the auxiliary line, and a second auxiliary line connection part disposed between the interlayer insulation layer and the passivation layer and connected to the first auxiliary line connection part. A cathode electrode of each of the plurality of organic light-emitting elements disposed on the plurality of sub-pixels is in contact with the auxiliary line connection part in the contact area.

公开(公告)号：US11101330B2

公开(公告)日：2021-08-24

申请号：US16911252

申请日：2020-06-24

Applicant: LG Display Co., Ltd.

Inventor： EunJi Park ,  Sungman Han ,  Kihyung Lee

IPC: H01L27/32

Abstract: Disclosed is an electroluminescent display device comprising a substrate, a circuit device layer including a signal line on the substrate, a bank defining a first emission area and a second emission area on the circuit device layer, and a first emission layer in the first emission area, and a second emission layer in the second emission area, wherein the first emission area is overlapped with the signal line, and a width of the first emission area is the same as or less than a width of the signal line.

公开(公告)号：US10734451B2

公开(公告)日：2020-08-04

申请号：US16224522

申请日：2018-12-18

Applicant: LG Display Co., Ltd.

Inventor： EunJi Park ,  Sungman Han ,  Kihyung Lee

IPC: H01L27/32

Abstract: Disclosed is an electroluminescent display device comprising a substrate, a circuit device layer including a signal line on the substrate, a bank defining a first emission area and a second emission area on the circuit device layer, and a first emission layer in the first emission area, and a second emission layer in the second emission area, wherein the first emission area is overlapped with the signal line, and a width of the first emission area is the same as or less than a width of the signal line.

公开(公告)号：US12182359B2

公开(公告)日：2024-12-31

申请号：US18435460

申请日：2024-02-07

Applicant: LG Display Co., Ltd.

Inventor： JaeHee Park ,  MiReum Lee ,  Kihyung Lee

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

Abstract: A transparent display device with a touch sensor is provided, which may reduce loss of light transmittance due to a touch sensor and a touch line, and may detect a line area, in which a defective touch sensor is included. The device includes a substrate provided with a plurality of transmissive areas and a non-transmissive area disposed between the transmissive areas adjacent to each other. The device includes a touch line extended from the non-transmissive area and connected to a touch sensor electrode, and a common power line connected to a cathode electrode to supply a cathode power source. The non-transmissive area includes a cathode power area to which the cathode power source is applied through the common power line, the cathode power area includes a first cathode power area and a second cathode power area. The second cathode power area may have resistance higher than that of the first cathode power area.

公开(公告)号：US12075681B2

公开(公告)日：2024-08-27

申请号：US17977911

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： JaeHee Park ,  Kihyung Lee

IPC: H01L27/32 ,  G06F3/041 ,  G06F3/044 ,  H01L27/12 ,  H10K59/121 ,  H10K59/131 ,  H10K59/40

CPC classification number: H10K59/40 ,  G06F3/0418 ,  G06F3/0446 ,  H01L27/124 ,  H10K59/1213 ,  H10K59/131 ,  G06F2203/04111

Abstract: A transparent display device with a touch sensor is provided, which may reduce loss of light transmittance due to a touch sensor and a touch line and may detect a defective touch sensor in a touch block. The device includes transmissive areas and a non-transmissive area disposed between the transmissive areas adjacent to each other, a plurality of touch lines provided in the non-transmissive area, and a plurality of touch blocks respectively connected to the plurality of touch lines. Each touch block includes a plurality of touch sensors disposed in the transmissive areas and comprised of M number of rows and N number of columns, a plurality of sensing lines disposed to correspond to the N number of columns, and a plurality of sensing transistors respectively connected to the plurality of touch sensors, transferring a voltage of the connected touch sensor to one of the plurality of sensing lines.

公开(公告)号：US11928285B2

公开(公告)日：2024-03-12

申请号：US17977888

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： JaeHee Park ,  MiReum Lee ,  Kihyung Lee

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

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F3/04164 ,  G06F3/0446 ,  H10K59/40

Abstract: A transparent display device with a touch sensor is provided, which may reduce loss of light transmittance due to a touch sensor and a touch line, and may detect a line area, in which a defective touch sensor is included. The device includes a substrate provided with a plurality of transmissive areas and a non-transmissive area disposed between the transmissive areas adjacent to each other. The device includes a touch line extended from the non-transmissive area and connected to a touch sensor electrode, and a common power line connected to a cathode electrode to supply a cathode power source. The non-transmissive area includes a cathode power area to which the cathode power source is applied through the common power line, the cathode power area includes a first cathode power area and a second cathode power area. The second cathode power area may have resistance higher than that of the first cathode power area.

公开(公告)号：US10355066B2

公开(公告)日：2019-07-16

申请号：US15831886

申请日：2017-12-05

Applicant: LG Display Co., Ltd.

Inventor： Kyungyun Kang ,  Jaewoong Youn ,  Kihyung Lee

IPC: H01L21/00 ,  H01L29/06 ,  H01L27/32 ,  H01L51/52

Abstract: The present disclosure is provided a display device including a lower substrate, a display area, and a guideline. The display area is disposed on the lower substrate. The guideline includes a guideline disposed in an outer region of the display area. The guideline includes: a first guideline layer disposed on the lower substrate, having separation spaces, and divided into multiple parts; and a second guideline layer disposed on the first guideline layer and divided into multiple parts.