公开(公告)号：US11084265B2

公开(公告)日：2021-08-10

申请号：US16342419

申请日：2017-10-19

Applicant: LG CHEM, LTD.

Inventor： Beom Seok Lee ,  Hang Suk Choi ,  Jae Hoon Choi ,  Eung Jin Jang ,  Suk Jae Lee ,  Ju Young Jeoung ,  Kyu Sung Hwang ,  Sung Kyum Kim

IPC: B32B37/10 ,  H01L51/00 ,  H01L27/32 ,  G02F1/1333 ,  B32B37/00 ,  G02F1/1335 ,  G02B5/30 ,  B32B38/18

Abstract: A system for manufacturing a laminated film, in which a first film and a second film are sequentially laminated, and the system includes: a film supplying part which supplies the first film and the second film; a bonding part which includes a first roll and a second roll that rotate in opposite directions, and compresses the first film and the second film supplied from the film supplying part and bonds the first film and the second film as the laminated film; and a bending inducing part which supports and bends the laminated film bonded and output from the bonding part, in which the second roll shifts in a direction along a circumference of a virtual circle having a larger radius than a radius of the first roll to control the bending of the laminated film.

公开(公告)号：US10710351B2

公开(公告)日：2020-07-14

申请号：US15604970

申请日：2017-05-25

Applicant: LG CHEM, LTD.

Inventor： San Park ,  Hang Suk Choi ,  Eung Jin Jang ,  Suk Jae Lee ,  Kyung Hyeok Park ,  Bong Su Jeung ,  Jea Han Ryoo ,  Cheon Ho Park ,  Pil Soo Nam ,  Beom Seok Lee

IPC: B32B38/18 ,  B32B38/10 ,  B32B27/08 ,  B32B37/02 ,  B32B37/20 ,  B32B37/18 ,  B32B38/04 ,  G02F1/13 ,  G02F1/1335

Abstract: A system for continuously manufacturing an optical display device and methods thereof are described. The system and method include a feeding unit for feeding an optical film, which includes a release film and a plurality of sheet pieces of a polarized film. The system and method further include a peeling unit for peeling the sheet pieces of the polarized film; a winding unit for winding the release film form the sheet pieces of the polarized film; and a controlling unit. The controlling unit controls at least one of the feeding unit, the winding unit, and the laminating unit.

公开(公告)号：US10725219B2

公开(公告)日：2020-07-28

申请号：US15603902

申请日：2017-05-24

Applicant: LG CHEM, LTD.

Inventor： Beom Seok Lee ,  Suk Jae Lee ,  Kyung Hyeok Park ,  San Park ,  Hang Suk Choi ,  Eung Jin Jang ,  Bong Su Jeung ,  Jea Han Ryoo

IPC: G02B5/00 ,  B32B7/00 ,  B32B37/00 ,  B32B38/00 ,  G02B5/30 ,  B32B7/12 ,  B32B37/26 ,  B32B37/12

Abstract: Provided is a method for an optical film which elongates by forming a plurality of sheet pieces by cutting a pre-processing optical film in a width direction of the pre-processing optical film, aligning the plurality of sheet pieces in such a manner that first end portions parallel to the longitudinal direction of the pre-processing optical film are opposite to each other, and connecting end portions of the plurality of sheet pieces to each other.

公开(公告)号：US10429560B2

公开(公告)日：2019-10-01

申请号：US15100420

申请日：2015-03-25

Applicant: LG CHEM, LTD.

Inventor： Beom Seok Lee ,  Eung Jin Jang ,  Kyun Il Rah ,  Hyung Koo Kang ,  Byung Sun Lee ,  Du Jin Choi ,  Ho Jeong Yun

IPC: B29D11/00 ,  B23K26/38 ,  B23K26/402 ,  B23K103/00 ,  B29K29/00 ,  G02B5/30 ,  G02B1/10 ,  G02B1/14

Abstract: The present invention relates to a method for manufacturing a polarizing element including locally bleached areas including steps of providing a polarizing element including a polyvinyl alcohol-based polarizer in which at least one of iodine and dichroic dye is oriented in a certain direction; forming a mask layer including at least one punched area on one surface of the polarizing element; partially bleaching the polarizing element formed with the mask layer by immersing the polarizing element into a bleaching solution; and correcting an appearance of the partially bleached polarizing element.

公开(公告)号：US10324331B2

公开(公告)日：2019-06-18

申请号：US15303070

申请日：2016-04-29

Applicant: LG CHEM, LTD.

Inventor： Beom Seok Lee ,  Kyung Hyeok Park ,  Hang Suk Choi ,  Eung Jin Jang ,  Sukjae Lee ,  Kyoung sik Kim

IPC: G02F1/1335 ,  G02F1/13 ,  B32B38/18 ,  B32B37/22 ,  B32B38/10

Abstract: The present specification relates to a display unit manufacturing method and an optical film laminating system.

公开(公告)号：US10302833B2

公开(公告)日：2019-05-28

申请号：US15547034

申请日：2016-02-01

Applicant: LG CHEM, LTD.

Inventor： Sung Hyun Nam ,  Kyung Ki Hong ,  Eung Jin Jang ,  Yeong Rae Chang ,  Heon Kim ,  Kyun Il Rah ,  Jong Hyun Jung ,  Byung Sun Lee ,  Hong Jun Choi ,  Moon Soo Park ,  Sun Kug Kim

IPC: G02F1/1335 ,  G02B5/30

Abstract: The present application relates to a polarizer, a polarizing plate and a display device. The present application can provide a polarizer or a polarizing plate that is applied to various types of display devices, particularly to a display device having a highly reflective liquid crystal panel and that shows excellent characteristics. In addition, the present application can provide a display device including the polarizer or the polarizing plate.

公开(公告)号：US12029099B2

公开(公告)日：2024-07-02

申请号：US15734072

申请日：2019-06-28

Applicant: LG CHEM, LTD.

Inventor： Beom Seok Lee ,  Chan Soo Kim ,  Eung Jin Jang ,  Sung Hyun Baek ,  Yu Jin Lim

IPC: H10K71/00 ,  B29C55/02 ,  B29C65/74 ,  G02B5/30 ,  H10K50/85

CPC classification number: H10K71/00 ,  B29C55/026 ,  B29C65/7459 ,  G02B5/30 ,  H10K50/85

Abstract: A system for manufacturing an optical display element by laminating an optical film on one surface of a rectangular organic light emitting display panel, the system including: a panel supply unit to which an organic light emitting display panel is supplied; a panel conveying unit which conveys the supplied organic light emitting display panel; an optical film supply unit which supplies an optical film by unwinding the optical film from a raw optical film roll; a laminating unit which laminates the optical film on one surface of the organic light emitting display panel; and a turning unit which rotates the organic light emitting display panel by 90° before the optical film is laminated on one surface of the organic light emitting display panel when a width-directional edge of the supplied organic light emitting display panel does not correspond to a width of the raw optical film roll.

公开(公告)号：US11415823B2

公开(公告)日：2022-08-16

申请号：US16959367

申请日：2019-03-20

Applicant: LG CHEM, LTD.

Inventor： Beom Seok Lee ,  Yu Jin Lim ,  Hang Suk Choi ,  Eung Jin Jang

IPC: G02F1/13 ,  G02F1/1335

Abstract: A display unit manufacturing system including: a panel conveyance route including an optical film attaching unit configured to attach an optical film to a panel; an inspection unit which inspects whether the panel having the optical film attached thereto is defective and identifies a defective panel; a panel storing unit which stores the defective panel after the optical film is separated therefrom; and a control unit which controls whether the panel stored in the panel storing unit is supplied to the panel conveyance route.

公开(公告)号：US11370212B2

公开(公告)日：2022-06-28

申请号：US16967573

申请日：2019-02-13

Applicant: LG CHEM, LTD.

Inventor： Beom Seok Lee ,  Yu Jin Lim ,  Chan Soo Kim ,  Eung Jin Jang

IPC: B32B41/00 ,  B32B38/18 ,  B32B37/00 ,  B32B38/00 ,  B32B38/10

Abstract: The present invention relates to an optical film laminating system for laminating an optical film on a panel in order to manufacture a display unit wherein a control unit which sets, in accordance with attachment conditions, an optical film laminating mode in respect to the panel to at least one of a first mode in which the panel and the optical film are inputted together between a first roller unit and a second roller unit so that the optical film is laminated on the panel, and a second mode in which the second panel conveying unit holds the panel by suction and conveys the panel and the optical film is inputted between the panel and an attachment roller unit, which is any one of the first roller unit and the second roller unit, so that the optical film is laminated on the panel.

公开(公告)号：US10821553B2

公开(公告)日：2020-11-03

申请号：US15315705

申请日：2015-09-22

Applicant: LG CHEM, LTD.

Inventor： Beom Seok Lee ,  Eung Jin Jang ,  Sukjae Lee ,  Kyoung Sik Kim

IPC: B23K26/28 ,  B23K26/0622 ,  G02B5/30 ,  B23K26/073 ,  B23K26/402 ,  B23K26/06 ,  B23K26/38 ,  B23K103/00 ,  B23K103/16 ,  B23K101/00 ,  B23K101/34

Abstract: A method of cutting a polarizing plate by using a laser, and a polarizing plate cut using the same. A beam shape of the laser is configured to have an elliptical shape and a major axis of the elliptical shape parallel to a cutting direction to provide excellent cross-sectional quality and improved productivity.