-
公开(公告)号：US20170374737A1
公开(公告)日：2017-12-28
申请号：US15527261
申请日：2016-07-25
Applicant: LG CHEM, LTD.
Inventor： Hye Won JEONG , Yong Goo SON , Kyungjun KIM , Bo Ra SHIN , Chang Yoon LIM
CPC classification number: H05K1/0393 , B32B15/08 , F21K99/00 , H01B3/30 , H01B5/14 , H01B7/04 , H01B13/00 , H01L31/0236 , H01L51/0023 , H01L51/0097 , H01L51/445 , H01L51/5212 , H01L51/5228 , H05K1/0283 , H05K1/0313 , H05K1/0346 , H05K3/0041 , H05K3/20 , H05K3/207 , H05K2201/0108 , H05K2201/0154 , H05K2201/0317 , H05K2201/10106 , H05K2201/10128 , H05K2203/0156 , H05K2203/0264 , H05K2203/1545 , Y02E10/549 , Y02P20/582
Abstract: The present invention relates to a method for producing a flexible substrate. According to the method of the present invention, a flexible substrate layer can be easily separated from a carrier substrate even without the need for laser or light irradiation so that a device can be prevented from deterioration of reliability and occurrence of defects caused by laser or light irradiation. In addition, according to the method of the present invention, a flexible substrate can be continuously produced in an easier manner based on a roll-to-roll process.
-
公开(公告)号：US20200062904A1
公开(公告)日：2020-02-27
申请号：US16461601
申请日：2018-01-17
Applicant: LG CHEM, LTD.
Inventor： Hye Won JEONG , Kichul KOO , Kyungjun KIM
IPC: C08G73/10 , C08J5/18 , C07C211/61 , C07C211/56 , H01L27/12 , H01L51/00
Abstract: Described is a polyimide prepared from a diamine containing a spiro or cardo group in a molecule structure, wherein the dimensional stability of the polyimide can be improved at a high temperature, and thus the polyimide can provide a polyimide film useful for a flexible substrate.
-
公开(公告)号：US20190062590A1
公开(公告)日：2019-02-28
申请号：US16176603
申请日：2018-10-31
Applicant: LG CHEM, LTD.
Inventor： Cheolmin YUN , BoRa SHIN , Hye Won JEONG , Kyungjun KIM , HangAh PARK
IPC: C09D179/08 , C08G73/10 , C08J5/18
Abstract: The present invention relates to a polyimide-based solution that can be used to produce an isotropic transparent polyimide-based film with high heat resistance and excellent mechanical properties as well as high transmittance. A coating of the polyimide-based solution on a substrate has a haze of 1% or less after storage at a temperature of 30° C. and a humidity of 70% for 30 minutes.
-
4.发明申请公开(公告)号：US20200062906A1
公开(公告)日：2020-02-27
申请号：US16461619
申请日：2018-01-19
Applicant: LG CHEM, LTD.
Inventor： Hye Won JEONG , Cheolmin YUN , Kyungjun KIM , Bora SHIN
IPC: C08G73/14 , C09D179/08 , B32B43/00
Abstract: The laminate for manufacturing a flexible substrate according to the present invention is formed by using a polyimide having a high absorbance to a UV laser in an organic sacrificial layer for delaminating a flexible substrate from a carrier substrate. Therefore, it is possible that the laser energy density required in the delaminating process using laser irradiation is reduced and the amount of as generated by the delaminating process is remarkably reduced so that the efficiency of the process, the permeability of the flexible substrate is improved and the reliability of the device is improved.
-
公开(公告)号：US20180334541A1
公开(公告)日：2018-11-22
申请号：US16047797
申请日：2018-07-27
Applicant: LG CHEM, LTD.
Inventor： Hye Won JEONG , Kyungjun KIM , Kyoung Hoon KIM , Chan Hyo PARK , BoRa SHIN , Seung Yup LEE , HangAh PARK , JinHo LEE , MiRa IM
IPC: C08G73/10 , B32B7/02 , B32B17/06 , C03C17/34 , H01L51/56 , H01L31/18 , H01L51/00 , H01L51/52 , B32B37/26 , H01L31/02 , B32B43/00 , B32B3/16 , B32B27/36 , B32B27/30 , B32B27/28 , B32B27/08 , B32B7/12 , B32B27/06 , B32B7/06
CPC classification number: C08G73/1067 , B32B3/16 , B32B7/02 , B32B7/06 , B32B7/12 , B32B17/064 , B32B27/06 , B32B27/08 , B32B27/281 , B32B27/286 , B32B27/308 , B32B27/36 , B32B37/26 , B32B43/006 , B32B2037/268 , B32B2250/02 , B32B2250/03 , B32B2255/26 , B32B2307/30 , B32B2307/402 , B32B2307/412 , B32B2307/748 , B32B2379/08 , B32B2457/00 , B32B2457/20 , B32B2457/202 , B32B2457/206 , C03C17/3405 , C03C2218/355 , H01L31/02 , H01L31/18 , H01L51/0024 , H01L51/0097 , H01L51/52 , H01L51/56 , H01L2227/326 , H01L2251/5338 , Y10T156/1195 , Y10T428/24942 , Y10T428/265 , Y10T428/31507 , Y10T428/31533 , Y10T428/31623 , Y10T428/31681 , Y10T428/31721 , Y10T428/31736
Abstract: A method for producing a device substrate by obtaining a laminate comprising a carrier substrate, a first polyimide film comprising a first polyimide resin disposed on at least one surface of the carrier substrate, a second polyimide film disposed on the first polyimide film opposite to the surface of the first polyimide film formed on a surface of the carrier substrate; applying a physical stimulus to the second polyimide film without causing chemical changes in the first polyimide film such that the cross-sections of the second polyimide film are exposed and cross-sectional surfaces of the first polyimide film are not exposed and no physical stimulus is applied to the surface of the carrier substrate, wherein the adhesive strength of the first polyimide to the second polyimide film decreases when the second polyimide film in the laminate is cut to expose cross-sectional surfaces of the second polyimide film; and separating the second polyimide film from the first polyimide film formed on the carrier substrate to obtain the device.
-
Patent Agency Ranking
公开(公告)号：US20170133634A1
公开(公告)日：2017-05-11
申请号：US15318928
申请日：2015-08-28
Applicant: LG CHEM, LTD.
Inventor： Sang Jun PARK , Yeon Keun LEE , Yong Nam KIM , Hye Won JEONG , Bo Ra SHIN
CPC classification number: H01L51/5268 , C08J5/00 , C08J5/18 , C08J2379/08 , C08K3/22 , C08K7/00 , C08K2003/2241 , C08L79/08 , C08L101/00 , H01L51/0034 , H01L51/0096 , H01L51/0097 , H01L2251/5369 , Y02E10/549
Abstract: The present application relates to a plastic substrate, a method for producing same, an organic electronic device, and display light source and lighting apparatus. The plastic substrate according to the present application has superb light extraction efficiency and exhibits an excellent surface roughness characteristic. Furthermore, the method for producing the plastic substrate according to the present application can produce the plastic substrate by means of a process in which scattering components are added secondarily. Moreover, the plastic substrate according to the present application can be utilized as a substrate for an organic electronic device, and the organic electronic device can be utilized as display light source and lighting apparatus.
-
7.发明申请公开(公告)号：US20160251545A1
公开(公告)日：2016-09-01
申请号：US15027533
申请日：2015-06-01
Applicant: LG CHEM, LTD.
Inventor： Cheolmin YUN , BoRa SHIN , Hye Won JEONG , Kyungjun KIM , HangAh PARK
IPC: C09D179/08
CPC classification number: C09D179/08 , C08G73/1003 , C08G73/1032 , C08G73/1039 , C08G73/1053 , C08G73/1071 , C08G73/1078 , C08J5/18 , C08J2379/08
Abstract: The present invention relates to a polyimide-based solution that can be used to produce an isotropic transparent polyimide-based film with high heat resistance and excellent mechanical properties as well as high transmittance. A coating of the polyimide-based solution on a substrate has a haze of 1% or less after storage at a temperature of 30° C. and a humidity of 70% for 30 minutes.
Abstract translation: 本发明涉及可用于制造具有高耐热性和优异的机械性能以及高透射率的各向同性的透明聚酰亚胺系膜的聚酰亚胺系溶液。 基于聚酰亚胺的溶液在30℃的温度和70％的湿度下保存30分钟后，在基板上的涂层的雾度为1％以下。
-
公开(公告)号：US20210147679A1
公开(公告)日：2021-05-20
申请号：US16628206
申请日：2019-01-23
Applicant: LG CHEM, LTD.
Inventor： Kyunghwan KIM , Hye Won JEONG , Chan Hyo PARK , Jinyoung PARK
Abstract: Provided according to the present invention is a substrate for a flexible display device in which the problems of threshold voltage shift-induced current fluctuation and resultant image sticking can be solved by introducing an imide monomer as an organic filler into a polyamic acid composition to enhance thickness and surface direction densities in the film that is manufactured while vulcanization is performed at high temperatures, thereby enhancing thermal diffusivity and thermal conductivity of the film.
-
公开(公告)号：US20200040152A1
公开(公告)日：2020-02-06
申请号：US16479127
申请日：2018-03-16
Applicant: LG CHEM, LTD.
Inventor： Cheolmin YUN , Hye Won JEONG , Kyungjun KIM
Abstract: The present invention relates to a laminated film roll body, around which a laminated film is wound, the laminated film including: a first polyimide film; and a second polyimide film laminated on the first polyimide film and made of a fluorine-based, siloxane-based, or amine-based polyamic acid, wherein the second polyimide film has a glass transition temperature of 350° C. or higher when measured by a temperature elevation rate of 20° C./min. The laminated film roll body can be used in a continuous manufacturing process of a flexible device to improve process yield and efficiency.
-
公开(公告)号：US20180007799A1
公开(公告)日：2018-01-04
申请号：US15540191
申请日：2016-06-08
Applicant: LG CHEM, LTD.
Inventor： Hye Won JEONG , Bo Ra SHIN , Kyungjun KIM , Ji Eun MYUNG , Yong Goo SON
IPC: H05K3/38 , B32B15/088 , C08G73/10 , H05K1/03
Abstract: The present invention relates to a method for producing a metal wire embedded flexible substrate from a laminate structure. The laminate structure includes a carrier substrate, a debonding layer disposed on at least one surface of the carrier substrate and including a polyimide resin, a metal wiring layer disposed in contact with the debonding layer, and a flexible substrate layer disposed in contact with the metal wiring layer. The adhesion strength between the metal wiring layer and the flexible substrate layer is greater than that between the metal wiring layer and the debonding layer. According to the method of the present invention, the flexible substrate with the metal wiring layer can be easily separated from the carrier substrate even without the need for other processes, such as laser and light irradiation. The embedding of the metal wires in the flexible substrate layer decreases the sheet resistance of an electrode and can protect the metal wires from damage or disconnection even when the flexible substrate is deformed in shape.
-
-
-
-
-
-
-
-
-
Search Results
16
records
(took 0.017 seconds)
