公开(公告)号：US20180151643A1

公开(公告)日：2018-05-31

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

CPC classification number: H01L27/3244 ,  H01L27/322 ,  H01L27/3288 ,  H01L51/5012 ,  H01L51/504 ,  H01L51/5072 ,  H01L51/5203 ,  H01L51/5206 ,  H01L51/5212 ,  H01L51/5234 ,  H01L51/5253 ,  H01L2251/5361

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：US20200044196A1

公开(公告)日：2020-02-06

申请号：US16600862

申请日：2019-10-14

Applicant: LG Display Co., Ltd.

Inventor： Taejoon SONG ,  Jongmin KIM

IPC: H01L51/52 ,  H01L51/56 ,  H01L27/32

Abstract: A lighting device is provided. The lighting device may include an organic light emitting diode arranged on one surface of a first substrate, the organic light emitting diode including a first electrode, an organic light emitting layer and a second electrode, and the first electrode is made of a transparent conductive material having a resistance value of 2,800-5,500Ω in each pixel, and has light scattering particles dispersed therein. Thus, even when a resistor of the organic light emitting layer is removed from a pixel due to a contact between the first electrode and the second electrode, it is possible to prevent an over current from being applied to the corresponding pixel through a resistor of the first electrode.

公开(公告)号：US20190165319A1

公开(公告)日：2019-05-30

申请号：US16200939

申请日：2018-11-27

Applicant: LG Display Co., Ltd.

Inventor： Jongmin KIM ,  Taejoon SONG

IPC: H01L51/52 ,  H01L51/00

Abstract: An organic light emitting diode (OLED) lighting apparatus capable of improving lighting efficiency and lifetime by maximizing a light emitting area is disclosed. The OLED lighting apparatus may include a first electrode, which is provided with an embossing pattern at an interface at which the first electrode contacts an overcoat layer on a substrate. The first electrode may be made of a high refractive transparent conductive material, and may be arranged in an entire active area of the OLED lighting apparatus. The OLED lighting apparatus can improve light extraction efficiency through a light scattering due to a microlens effect through the first electrode provided with the embossing pattern, which facilitates elimination of a light extraction layer arranged at the interface between the substrate and the overcoat layer, thereby reducing a process yield and manufacturing cost.

公开(公告)号：US20190019990A1

公开(公告)日：2019-01-17

申请号：US16030287

申请日：2018-07-09

Applicant: LG Display Co., Ltd.

Inventor： Taejoon SONG ,  Jongmin KIM

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56

CPC classification number: H01L51/5268 ,  H01L27/3202 ,  H01L51/5206 ,  H01L51/5212 ,  H01L51/5228 ,  H01L51/5275 ,  H01L51/56 ,  H01L2251/5361

Abstract: A lighting device is provided. The lighting device may include an organic light emitting diode arranged on one surface of a first substrate, the organic light emitting diode including a first electrode, an organic light emitting layer and a second electrode, and the first electrode is made of a transparent conductive material having a resistance value of 2,800-5,500Ω in each pixel, and has light scattering particles dispersed therein. Thus, even when a resistor of the organic light emitting layer is removed from a pixel due to a contact between the first electrode and the second electrode, it is possible to prevent an over current from being applied to the corresponding pixel through a resistor of the first electrode.

公开(公告)号：US20180151822A1

公开(公告)日：2018-05-31

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

CPC classification number: H01L51/5036 ,  H01L51/5203 ,  H01L51/56 ,  H01L2251/5361 ,  H01L2251/564

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：US20180190948A1

公开(公告)日：2018-07-05

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: H01L51/56 ,  H01L51/00 ,  H01L51/52

CPC classification number: H01L51/0097 ,  H01L51/5203 ,  H01L51/5212 ,  H01L2251/5338 ,  H01L2251/5361 ,  Y02E10/549

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：US20180159071A1

公开(公告)日：2018-06-07

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: H01L51/52 ,  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.

公开(公告)号：US20180159068A1

公开(公告)日：2018-06-07

申请号：US15703854

申请日：2017-09-13

Applicant: LG Display Co., Ltd.

Inventor： Shinbok LEE ,  Taejoon SONG ,  Namkook KIM

IPC: H01L51/52 ,  H01L51/50

CPC classification number: H01L51/5228 ,  H01L51/5056 ,  H01L51/5203 ,  H01L51/5212 ,  H01L51/5237 ,  H01L51/5243 ,  H01L51/5253 ,  H01L51/56 ,  H01L2251/5361 ,  H01L2251/562

Abstract: A lighting apparatus using an organic light emitting diode according to the present disclosure is configured such that a substrate is planarized by forming an anti-scratch layer on a cathode electrode to fully cover the cathode electrode.The present disclosure having such configuration can uniformly maintain pressing pressure by virtue of the anti-scratch layer even while winding or unwinding the substrate for pulse aging, thereby preventing damages due to scratches or particles.

公开(公告)号：US20180151832A1

公开(公告)日：2018-05-31

申请号：US15687290

申请日：2017-08-25

Applicant: LG Display Co., Ltd.

Inventor： Shinbok LEE ,  Taejoon SONG ,  Namkook KIM ,  Soonsung YOO ,  Hwankeon LEE

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56

CPC classification number: H01L51/5237 ,  F21Y2115/15 ,  H01L27/3206 ,  H01L51/0017 ,  H01L51/5203 ,  H01L51/5206 ,  H01L51/5212 ,  H01L51/5221 ,  H01L51/5228 ,  H01L51/5268 ,  H01L51/56 ,  H01L2251/5338 ,  H01L2251/5361

Abstract: A lighting apparatus using an organic light-emitting diode and a method of fabricating the same according to the present disclosure are characterized in that contact electrodes are formed by laser ablation and printing after an organic emissive material, a conductive film as a cathode, and passivation layers are deposited on the entire surface of a substrate. The lighting apparatus may be fabricated in a simplified manner without using an open mask (metal mask), which is a complicated tool, and may be useful especially in roll-to-roll manufacturing.

公开(公告)号：US20190172892A1

公开(公告)日：2019-06-06

申请号：US16209055

申请日：2018-12-04

Applicant: LG Display Co., Ltd.

Inventor： Kyu-Hwang LEE ,  Taejoon SONG ,  Chulho KIM ,  Jungeun LEE ,  Shin-Bok LEE ,  Taeok KIM

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/52

Abstract: A flexible OLED panel for a lighting device according to the present invention includes a substrate which is made of a polymer material and has a first light extracting pattern provided on a lower surface thereof; an auxiliary wiring pattern which is arranged on the substrate; a first electrode which is arranged on the substrate on which the auxiliary wiring pattern is arranged; a passivation layer which is arranged on the first electrode, at least on an area on which the auxiliary wiring pattern is arranged; an OLED light emitting structure which is arranged on the first electrode on which the passivation layer is arranged; a second electrode which is arranged on the OLED light emitting structure; and an encapsulation layer which is arranged on the second electrode.