公开(公告)号：US11895791B2

公开(公告)日：2024-02-06

申请号：US17541988

申请日：2021-12-03

Applicant: LG Display Co., Ltd.

Inventor： JaeSung Lee ,  Jaehyeong Kim ,  Dojin Kim

IPC: H05K5/02 ,  G06F1/16

CPC classification number: H05K5/0217 ,  G06F1/1652

Abstract: A display device according to an exemplary embodiment of the present disclosure includes a display panel having a display area, a back cover disposed on a rear surface of the display panel, a first roller which winds or unwinds the back cover and the display panel, and a second roller which is disposed above the first roller to move in a vertical direction, the back cover and the display panel being overlaid on the second roller. The emission area is flexibly adjusted during the partial view so as to suppress a burn-in issue and improve the lifespan of the display device.

公开(公告)号：US12242682B2

公开(公告)日：2025-03-04

申请号：US18387639

申请日：2023-11-07

Applicant: LG Display Co., Ltd.

Inventor： JaeHee Park ,  MiReum Lee ,  Dojin Kim

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3225 ,  H10K59/40 ,  H10K59/88

Abstract: A transparent display device with a touch sensor can include a plurality of subpixels disposed in a non-transmission area of a substrate, the plurality of subpixels including a light emitting element with an anode electrode, a light emitting layer, and a cathode electrode; and a touch sensor in a transmission area of the substrate and including a touch sensor electrode. Also, the transparent display device can include an undercut structure for separating the cathode electrode from the touch sensor electrode of the touch sensor, in which the undercut structure is in the transmission area of the substrate and includes a plurality of inorganic layers including an opening area between an edge area of the touch sensor and an edge area of one of the plurality of subpixels; and an organic pattern on an edge area of the plurality of inorganic layers, the organic pattern being spaced apart from the subpixels.

公开(公告)号：US20250056925A1

公开(公告)日：2025-02-13

申请号：US18745483

申请日：2024-06-17

Applicant: LG Display Co., Ltd.

Inventor： Dojin Kim ,  Eunjeong Shin

IPC: H01L33/20 ,  H01L25/075 ,  H01L33/62

Abstract: Provided is a display device. The display device comprises a substrate including an active area in which a plurality of sub pixels is disposed and a non-active area. The display device comprises a plurality of transistors disposed in each of the plurality of sub pixels on the substrate. The display device comprises a plurality of light emitting diodes disposed in each of the plurality of sub pixels on the substrate. The display device comprises a plurality of first alignment keys disposed on the substrate. The display device comprises an insulating layer which includes a plurality of inorganic insulating layers and a plurality of organic insulating layers disposed on the substrate. In an area which overlaps the plurality of first alignment keys, the plurality of organic insulating layers is disposed on the plurality of inorganic insulating layers.

公开(公告)号：US12148864B2

公开(公告)日：2024-11-19

申请号：US17375909

申请日：2021-07-14

Applicant: LG Display Co., Ltd.

Inventor： Dojin Kim ,  Seok Kim ,  SeongHwan Ju

IPC: H01L27/12 ,  H01L33/46

Abstract: A display device includes a light emitting diode LED element having a horizontal length in an X-axis direction and a vertical length in a Y-axis direction, a driving element connected to the LED element, and a reflective functional layer positioned to overlap an upper portion or a lower portion of the LED element, wherein the reflective functional layer includes a central area overlapping the LED element, an outer area including a graduation smaller than the horizontal length or the vertical length of the LED element, and a peripheral area between the central area and the outer area. Accordingly, it is possible to reduce a contact defect of the light emitting diode and the driving element by checking a position where the light emitting diode is attached on a substrate and a degree of misalignment.

公开(公告)号：US20240224660A1

公开(公告)日：2024-07-04

申请号：US18499806

申请日：2023-11-01

Applicant: LG Display Co., Ltd.

Inventor： Dojin Kim ,  JaeHee Park ,  MiReum Lee ,  Nara Shin

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

CPC classification number: H10K59/131 ,  G06F3/0412 ,  H10K59/40

Abstract: A transparent display device with a touch sensor is disclosed, which comprises: a substrate including a transmissive area and a non-transmissive area; a plurality of subpixels in the non-transmissive area, a subpixel including a light emitting element including an anode electrode, a light emitting layer, and a cathode electrode; a touch sensor in the transmissive area and including a touch sensor electrode in the transmissive area; a first undercut structure between the cathode electrode of the light emitting element and the touch sensor electrode of the touch sensor; a signal line between the first undercut structure and the substrate; and an etch stop layer between the signal line and the first undercut structure.

公开(公告)号：US11991918B2

公开(公告)日：2024-05-21

申请号：US17741923

申请日：2022-05-11

Applicant: LG Display Co., Ltd.

Inventor： Saemleenuri Lee ,  SeYeoul Kwon ,  Dojin Kim

IPC: H10K77/10 ,  H01L27/12 ,  H01L29/786 ,  H10K50/80 ,  H10K59/131 ,  H10K59/121 ,  H10K59/126 ,  H10K102/00

CPC classification number: H10K77/111 ,  H01L27/1218 ,  H01L27/124 ,  H01L29/78603 ,  H01L29/78633 ,  H10K50/80 ,  H10K59/131 ,  H10K59/1213 ,  H10K59/126 ,  H10K2102/311 ,  Y02E10/549

Abstract: A flexible display device of which esthetic appearance is improved by reducing a bezel is disclosed. The flexible display device comprises a substrate including a display area and a non-display area including a bending area; a link line in the non-display area on the substrate; and a bending connection line in the bending area pf the substrate and connected with the link line, and the bending connection line located between a first buffer layer and a second buffer layer of the flexible display device.

公开(公告)号：US10741615B2

公开(公告)日：2020-08-11

申请号：US15856423

申请日：2017-12-28

Applicant: LG Display Co., Ltd.

Inventor： Mingu Cho ,  Dojin Kim ,  Miae Kim

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/00

Abstract: A display device is disclosed. The display device includes a substrate including first to fourth subpixels, a first buffer layer positioned on the substrate, the first buffer layer including a silicon nitride layer and a silicon oxide layer, and a thin film transistor and an organic light emitting diode positioned on the first buffer layer. Each of the first to fourth subpixels includes an emission portion and a non-emission portion. A thickness of the silicon nitride layer in the non-emission portion is greater than a thickness of the silicon nitride layer in the emission portion.

公开(公告)号：US10326107B2

公开(公告)日：2019-06-18

申请号：US15807918

申请日：2017-11-09

Applicant: LG Display Co., Ltd.

Inventor： Hyunjoo Song ,  Hyunju Jung ,  Jongju An ,  Dojin Kim

IPC: H01L27/14 ,  H01L51/52 ,  H01L27/32 ,  H01L51/00

Abstract: A flexible display device includes a first substrate defining a display region having a pixel array therein and a non-display region outside of the display region; a second substrate on the first substrate to cover the pixel array; at least one circuit attached to one side of the first substrate with a protruded portion protruding outwardly from an edge of the first substrate; and a first protective film below the first substrate and overlapping at least part of the protruded portion of the circuit.