公开(公告)号：US10290687B2

公开(公告)日：2019-05-14

申请号：US15701017

申请日：2017-09-11

Applicant: LG Display Co., Ltd.

Inventor： Shinbok Lee ,  Taejoon Song ,  Namkook Kim ,  Soonsung Yoo ,  Hwankeon Lee

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52

Abstract: A lighting apparatus using an organic light emitting diode and a method of fabricating the same according to the present disclosure is configured such that a contact electrode is formed using laser ablation and printing after an organic light emitting material, a conductive layer for a cathode and a passivation layer are deposited on an entire surface of a substrate, and then encapsulated with a metal film.The present disclosure simplifies a fabricating process of the lighting apparatus by virtue of a non-use of an open mask (metal mask) as a sophisticated apparatus, and particularly, can be effectively applied to a roll-producing process.Also, the present disclosure can provide an effect of improving reliability by preventing moisture permeation in a manner of covering an exposed contact portion with a protection film such as a barrier tape.

公开(公告)号：US10164211B2

公开(公告)日：2018-12-25

申请号：US15703329

申请日：2017-09-13

Applicant: LG DISPLAY CO., LTD.

Inventor： Namkook Kim ,  Soonsung Yoo ,  Taejoon Song ,  Jungeun Lee ,  Shinbok Lee ,  Kyungha Lee

IPC: H01L51/56 ,  H01L51/00 ,  H01L51/52

Abstract: According to the present disclosure, an organic light emitting material and a metal may be entirely deposited on a substrate without using an open mask to form an organic light emitting device, thereby facilitating application to a roll fabrication apparatus. A side surface of an organic light emitting layer may be exposed to the outside, but a step structure may be formed on an outer portion of the substrate, and the organic light emitting layer is disconnected between an outer region and a lighting region by the step of the step structure, thereby preventing moisture that penetrates into the organic light emitting layer in the outer region from being propagated to the organic light emitting layer in the lighting region.

公开(公告)号：US11856830B2

公开(公告)日：2023-12-26

申请号：US17130730

申请日：2020-12-22

Applicant: LG Display Co., Ltd.

Inventor： Jungeun Lee ,  Chulho Kim ,  Namkook Kim ,  Sungwoo Choi ,  Hwankeon Lee ,  Youngkyun Moon ,  Jihun Lee

IPC: H01L27/32 ,  H10K59/131 ,  H10K50/824 ,  H10K71/00 ,  G09G3/20 ,  G09G3/3225 ,  H10K59/122 ,  H10K59/12

CPC classification number: H10K59/1315 ,  H10K50/824 ,  H10K71/00 ,  G09G3/2003 ,  G09G3/3225 ,  G09G2310/08 ,  G09G2330/00 ,  H10K59/1201 ,  H10K59/122

Abstract: The present disclosure relates to a display device and a method of manufacturing the same, the display device including: a substrate including a pixel area and a non-pixel area adjacent to the pixel area; a power line formed on the substrate; at least one insulation layer covering the power line; a connection electrode formed on the at least one insulation layer, and connected to the power line through a contact hole; an overcoat layer placed above the connection electrode in the pixel area; and a first electrode placed above the overcoat layer, wherein the connection electrode has at least an area formed in the non-pixel area, and the first electrode extends to the non-pixel area and is connected to the connection electrode.

公开(公告)号：US10553832B2

公开(公告)日：2020-02-04

申请号：US15704760

申请日：2017-09-14

Applicant: LG Display Co., Ltd.

Inventor： Taejoon Song ,  Namkook Kim ,  Shinbok Lee ,  Soonsung Yoo ,  Hwankeon Lee

IPC: H01L51/56 ,  H01L51/00 ,  H01L51/50 ,  H01L51/52

Abstract: According to a lighting apparatus of the present disclosure, an organic light emitting material and a metal layer may be deposited in a state that an edge region of a film being transported is blocked by a shielding member not to form an organic light emitting layer and a second electrode in a region on which a pad is formed. A lighting apparatus may be completed by separating the film as it is cut in a width direction, wherein the organic light emitting layer and the second electrode are exposed to the outside through the cut surface, and an open region from which the organic light emitting layer and the second electrode are removed in parallel to both cut surfaces may be formed within the lighting apparatus spaced apart from the cut surface of the film to disconnect the organic light emitting layer.

公开(公告)号：US10529949B2

公开(公告)日：2020-01-07

申请号：US16119385

申请日：2018-08-31

Applicant: LG Display Co., Ltd.

Inventor： Taejoon Song ,  Namkook Kim ,  Shinbok Lee ,  Soonsung Yoo ,  Hwankeon Lee

IPC: H01L51/52 ,  H01L51/00 ,  H01L51/56 ,  H01L51/10 ,  H01L23/492

Abstract: A lighting apparatus using an organic light-emitting diode and a method of fabricating the same are characterized in that an organic emissive material and a conductive film used as a cathode are deposited on the entire surface of a substrate, and then an organic emissive layer in a lighting area and contact areas becomes separated (disconnected or cut) by laser ablation, simultaneously with the formation of a contact hole for contact with an anode. Next, cathode contact and encapsulation processes are performed using an adhesive containing conductive particles and a metal film. This simplifies the fabrication process of the lighting apparatus without using an open mask (metal mask), which is a complicated tool, thus making it useful especially in roll-to-roll manufacturing.

公开(公告)号：US11718915B2

公开(公告)日：2023-08-08

申请号：US16190752

申请日：2018-11-14

Applicant: LG Display Co., Ltd.

Inventor： Yunho Kook ,  Namkook Kim ,  Seunghyun Youk ,  Sungwoo Choi ,  Hwankeon Lee

IPC: C23C16/54 ,  B65H20/00 ,  C23C16/455 ,  B65H20/10

CPC classification number: C23C16/545 ,  B65H20/00 ,  B65H20/10 ,  C23C16/45563

Abstract: Disclosed herein is a drum for roll-to-roll deposition to rotate about a longitudinal axis. The drum is circular in a widthwise cross-section and has a shape in which opposite longitudinal edge portions each have a narrower width than a longitudinal central portion. By using the drum for roll-to-roll deposition according to embodiments of the present disclosure, it is possible to remove wrinkles occurring on a flexible substrate when a roll-to-roll deposition process is performed. As a result, it is possible to manufacture a film roll having a deposition layer with excellent widthwise thickness uniformity.

公开(公告)号：US10468620B2

公开(公告)日：2019-11-05

申请号：US15685884

申请日：2017-08-24

Applicant: LG Display Co., Ltd.

Inventor： Namkook Kim ,  Taejoon Song ,  Shinbok Lee ,  Soonsung Yoo ,  Hwankeon Lee

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56

Abstract: A plurality of lighting apparatuses according to the present disclosure may be formed on a film having flexibility, and then cut to complete each unit lighting apparatus, and an lighting apparatus formed on the film may be provided with an aging pad to apply an aging voltage to the organic light emitting layer through the aging pad so as to age the lighting apparatus during the process of forming the lighting apparatus, and when the film formed with the lighting apparatus is cut and divided into individual lighting apparatuses, the aging pad may be removed and cut, and only a pad line for electrically connecting the aging pad to the first electrode and the second electrode may remain in the lighting apparatus.

公开(公告)号：US12150336B2

公开(公告)日：2024-11-19

申请号：US17115553

申请日：2020-12-08

Applicant: LG Display Co., Ltd.

Inventor： Jungeun Lee ,  Chulho Kim ,  Namkook Kim ,  Sungwoo Choi ,  Hwankeon Lee ,  Youngkyun Moon ,  Jihun Lee

IPC: H10K50/858 ,  H10K59/122 ,  H10K59/38

Abstract: The present disclosure relates to a display device. More particularly, the present disclosure relates to a display device capable of enhancing efficiency of light emitted from a light-emitting element. A display device according to an embodiment includes a substrate on which areas of pixels composed of multiple subpixels are arranged, a circuit element layer in which circuit elements constituting the multiple subpixels are provided, a light-emitting element layer in which light-emitting elements constituting the multiple subpixels are provided, and a lens placed corresponding to the light-emitting element.

公开(公告)号：US10418571B2

公开(公告)日：2019-09-17

申请号：US15709103

申请日：2017-09-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Taejoon Song ,  Namkook Kim ,  Shinbok Lee ,  Soonsung Yoo ,  Hwankeon Lee

IPC: H01L29/18 ,  H01L21/00 ,  H01L51/00 ,  H01L51/52

Abstract: A lighting apparatus of the present disclosure may transport a film formed with a plurality of lighting apparatuses between rolls, and place a mask on an entire surface of the film to deposit an organic light emitting material in a state in which a part of the film is blocked to form an organic light emitting layer, and then deposit a metal layer by the same mask to form a second electrode, wherein the organic light emitting layer and the second electrode are not formed in a region where a pad is formed by the mask to open the pad and connect an external signal source thereto. The first electrode may be connected to a first pad and the second electrode may be connected to a second pad to apply a voltage, wherein a part of the organic light emitting layer is laser-etched to form a contact portion, and the second electrode is electrically connected to the second pad.

公开(公告)号：US10079361B2

公开(公告)日：2018-09-18

申请号：US15699840

申请日：2017-09-08

Applicant: LG Display Co., Ltd.

Inventor： Taejoon Song ,  Namkook Kim ,  Shinbok Lee ,  Soonsung Yoo ,  Hwankeon Lee

IPC: H01L51/10 ,  H01L51/52 ,  H01L51/00 ,  H01L51/56

CPC classification number: H01L51/5246 ,  H01L27/3276 ,  H01L27/3288 ,  H01L27/329 ,  H01L51/0017 ,  H01L51/0021 ,  H01L51/0097 ,  H01L51/102 ,  H01L51/5203 ,  H01L51/56 ,  H01L2251/5338 ,  H01L2251/5361

Abstract: A lighting apparatus using an organic light-emitting diode and a method of fabricating the same are characterized in that an organic emissive material and a conductive film used as a cathode are deposited on the entire surface of a substrate, and then an organic emissive layer in a lighting area and contact areas becomes separated (disconnected or cut) by laser ablation, simultaneously with the formation of a contact hole for contact with an anode. Next, cathode contact and encapsulation processes are performed using an adhesive containing conductive particles and a metal film. This simplifies the fabrication process of the lighting apparatus without using an open mask (metal mask), which is a complicated tool, thus making it useful especially in roll-to-roll manufacturing.