WO2014189243A1 - Procédé de fabrication d'une feuille adhésive pour dispositif d'affichage - Google Patents

Procédé de fabrication d'une feuille adhésive pour dispositif d'affichage Download PDF

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Publication number
WO2014189243A1
WO2014189243A1 PCT/KR2014/004466 KR2014004466W WO2014189243A1 WO 2014189243 A1 WO2014189243 A1 WO 2014189243A1 KR 2014004466 W KR2014004466 W KR 2014004466W WO 2014189243 A1 WO2014189243 A1 WO 2014189243A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive tape
adhesive
adhesive sheet
main film
display device
Prior art date
Application number
PCT/KR2014/004466
Other languages
English (en)
Korean (ko)
Inventor
김인석
고형진
Original Assignee
(주)지우전자
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)지우전자 filed Critical (주)지우전자
Publication of WO2014189243A1 publication Critical patent/WO2014189243A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/255—Polyesters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the present invention relates to a method for manufacturing an adhesive sheet for a display device, in particular, to maximize the use efficiency of raw materials by minimizing the loss of the adhesive tape in the adhesive sheet manufacturing process, while minimizing the release force during scrap removal of the adhesive tape to display a large area
  • the present invention relates to a method for producing an adhesive sheet for a display device suitable for manufacturing a device.
  • a display device using liquid crystal includes a backlight unit 30 including a light guide plate 31, a reflection plate 35, and a plurality of optical sheets 33, and a flexible circuit board 50. ), A liquid crystal panel 40, and an adhesive sheet 10 for adhering the optical sheet 33 and the liquid crystal panel 40.
  • the adhesive sheet 10 is provided in a rectangular frame shape.
  • a step of laminating the main film 11 and the adhesive tape 15 and a press is performed.
  • Step b of forming a cutting line (19a) for separating the scrap region (S1) in the center of the adhesive tape 15 through the step c, step c of removing the scrap region (S1) in the center, the cover film 13 It is produced through the step d of laminating, the step e of forming a cutting line 19b for distinguishing the outer scrap region S2, and the step f of removing the outer scrap region S2.
  • the conventional adhesive sheet manufacturing method because it removes the center of the scrap area occupying the largest area in the adhesive tape, the loss portion that is discarded after processing in the raw material (adhesive tape) ( The center scrap area) has too many problems. As a result, the raw material use efficiency is extremely low, as well as the manufacturing cost has a problem.
  • the center scrap area is not easily separated in the process of removing the scrap region, which is not suitable for manufacturing a large-size liquid crystal panel adhesive sheet.
  • an object of the present invention is to provide a method for manufacturing an adhesive sheet for a display device which can improve raw material use efficiency and reduce manufacturing costs by minimizing the amount of adhesive tape discarded in the adhesive sheet manufacturing process.
  • the object is, according to an embodiment of the present invention, in the adhesive sheet manufacturing method for adhering the backlight unit and the liquid crystal panel of the display device, the first adhesive tape to the main film in a sequential interval set in the first direction Attaching with; Attaching second adhesive tapes to both ends of the first adhesive tape in a second direction in a horizontal direction of the first direction to form a rectangular frame shape; Making an adhesive sheet by laminating a cover film on top of the first adhesive tape and the second adhesive tape; Forming a dividing line for dividing the scrap portion in the adhesive sheet; Removing the scrap portion; is achieved by a method for manufacturing an adhesive sheet for a display device comprising a.
  • the attaching of the first adhesive tape may be performed by intermittently cutting the first adhesive tape wound on the roll in the first direction, which is a transverse direction of the transport direction of the main film wound on the roll, to the main film. Attaching; Forming a first cutting line for dividing a first scrap region on the first adhesive tape; And removing the first scrap region.
  • the step of intermittently cutting the first adhesive tape and attaching the main film to the main film may include uniformly transferring the main film at a set speed, and transferring the first adhesive tape to the upper part of the main film by a predetermined thickness. Stopping; Cutting the first adhesive tape using a cutter and attaching the first adhesive tape to the main film; And stopping the transfer of the first adhesive tape by the separation interval.
  • the second adhesive tape wound on the roll may be attached to the main film in the second direction, which is a conveying direction of the main film, along each end of the first adhesive tape. Attaching; Forming a second cutting line for dividing a second scrap region on the second adhesive tape; And removing the second scrap region.
  • the removing of the second scrap region and laminating the cover film may be performed at the same time.
  • the main film and the cover film may be made of polyethylene terephthalate (PET) material.
  • PET polyethylene terephthalate
  • the release force is reduced when removing the scrap region is suitable for the manufacture of a large area display device.
  • FIG. 1 is an exploded perspective view of main parts of a display device
  • FIG. 4 is a perspective view of the adhesive sheet prepared according to the process diagram shown in FIG.
  • FIG. 5 is a flowchart of a method of manufacturing an adhesive sheet for a display device according to another embodiment of the present invention.
  • Adhesive sheet for a display device in the adhesive sheet manufacturing method for bonding the backlight unit and the liquid crystal panel of the display device, the first adhesive tape 151 to the main film 110 Attaching sequentially to form a spaced interval d set in a first direction (S10), and a second adhesive tape 155 in a second direction in a horizontal direction of the first direction to both ends of the first adhesive tape 151; Attaching the cover film 130 to an upper portion of the step S20 and the first adhesive tape 151 and the second adhesive tape 155 to attach the cover film 130 to form a rectangular sheet shape (S20). S30, and forming a dividing line 159 for dividing the scrap portion (C3) on the adhesive sheet 100 (S40), and removing the scrap portion (C3) (S50).
  • the main film 110 is wound on a roll (not shown) and is constantly transported at a set speed.
  • the first adhesive tape 151 is also wound on a roll and transported in the same direction as the main film 110.
  • the first adhesive tape 151 is conveyed in the form of the original fabric as shown in FIG. 2A, but is intermittently cut by a cutter (not shown) adjacent to the main film 110, and FIG. In the form of
  • the forming order of the first adhesive tape 151 or the second adhesive tape 155 may be changed.
  • the second adhesive tape 155 in the second direction that is the same as the transfer direction may be formed in the main film.
  • the first adhesive tape 151 in the first direction may be attached later, after first attaching to 110.
  • the first adhesive tape 151 wound on the roll in the first direction which is the horizontal direction of the transport direction of the main film 110 wound on the roll, Intermittently cut to attach to the main film (S10).
  • the main film 110 is transported at a set uniform speed, but after the first adhesive tape 151 is cut, the main film 110 is transported by the thickness t of FIG. The cutting process is repeated again after the transfer is stopped until 110 is transferred by the interval d.
  • the interval d is provided corresponding to the length between each side of the adhesive sheet 100 shown in FIG.
  • the first cutting line 153 may be set in various ways according to the size and shape of the region to be scraped, and is generally formed by pressing.
  • step (S20) of attaching the second adhesive tape 155 it is wound on the roll in the second direction, which is the conveying direction of the main film 110, along each end of the first adhesive tape 151.
  • the second adhesive tape 155 is attached to the main film 110 (S20).
  • the first adhesive tape 151 and the second adhesive tape 155 form a rectangular frame as a whole.
  • the second adhesive tape 155 may be unwound and transported by two rolls spaced apart by the horizontal length of the first adhesive tape 151 to be bonded.
  • additional cutting may be performed in the second scrap operation without additional cutting operations, or may be attached through intermittent cutting such as the first adhesive tape 151 attachment process. May be
  • Forming a second cutting line 157 for dividing the second scrap region C2 on the second adhesive tape 155 and removing the second scrap region C2 (S22). It may include.
  • Removing the second scrap region C2 (S22) and laminating the cover film 130 (S30) may be performed at the same time.
  • the secondary scrap processes S21 and S22 may be omitted and may be performed at once in the removal process of the scrap part C3.
  • the secondary scrap process scrapes the inner surface of the adhesive tape (151, 155) forming each side in the adhesive sheet () of Figure 4,
  • the scrap portion (C3) process is the adhesive tape 151 , 155 may be divided into a process of scraping the outer surface, the inner side and the outer side of the adhesive tape (151, 155) may be scraped at the same time, but if the thickness of the adhesive tape (151, 155) is thinner inside and outside Failure due to simultaneous scraping may occur.
  • the secondary and tertiary scraps are simultaneously performed. It is preferable to perform the car scrap process and the scrap part removal process separately.
  • the cover film 130 is laminated on the first adhesive tape 151 and the second adhesive tape 155 to form an adhesive sheet 100, and an adhesive sheet.
  • To complete the adhesive sheet 100 as shown in FIG.
  • each corner of the first adhesive part 151 and the second adhesive part 155 may have cutouts 152 and 156 having approximately “Z” shapes cut in corresponding shapes. This is to prevent light leakage from the backlight unit 30.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une feuille adhésive pour un dispositif d'affichage. En particulier, l'invention concerne un procédé de fabrication d'une feuille adhésive pour assembler une unité de rétroéclairage et un panneau à cristaux liquides d'un dispositif d'affichage, ledit procédé comprenant les étapes suivantes : fixer de manière séquentielle de premières bandes adhésives, de façon qu'elles sont séparées à des intervalles prédéterminés, sur un film principal dans la première direction; fixer de secondes bandes adhésives aux deux extrémités des premières bandes adhésives dans la deuxième direction qui coupe la première direction, de manière à créer la forme d'un cadre quadrangulaire; produire une feuille adhésive par application d'un film de couverture sur les parties supérieures des premières et des secondes bandes adhésives; former une ligne de division, sur la feuille adhésive, pour distinguer une partie de résidus, puis éliminer la partie de résidus. Selon la présente invention, il est possible de réduire à un minimum la quantité de bande adhésive perdue au cours du processus de fabrication de la feuille adhésive, ce qui permet d'améliorer l'efficacité dans l'utilisation des matières premières et de réduire les coûts de fabrication. En outre, comme la force de décollement peut être réduite au moment de l'élimination de la zone de résidus, du fait de la réduction à un minimum de la taille de la zone de résidus à éliminer, la présente invention est indiquée dans la fabrication d'un dispositif d'affichage de surface étendue.
PCT/KR2014/004466 2013-05-24 2014-05-19 Procédé de fabrication d'une feuille adhésive pour dispositif d'affichage WO2014189243A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2013-0059213 2013-05-24
KR1020130059213A KR101445582B1 (ko) 2013-05-24 2013-05-24 디스플레이장치용 접착시트 제조방법

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WO2014189243A1 true WO2014189243A1 (fr) 2014-11-27

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KR (1) KR101445582B1 (fr)
WO (1) WO2014189243A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107263956A (zh) * 2016-04-08 2017-10-20 苏州达翔新材料有限公司 一种电磁干扰emi复合材料及其制备方法

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CN105733465B (zh) * 2016-04-21 2018-10-26 苏州安洁科技股份有限公司 窄边框模组粘合胶带及其对应的制作方法
KR102559285B1 (ko) * 2022-03-31 2023-07-25 주식회사 신성씨앤티 접착 시트 가공 방법

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JP2002098945A (ja) * 2000-09-21 2002-04-05 Seiko Epson Corp 液晶装置、液晶装置用遮光シート及び液晶装置の製造方法
KR200422857Y1 (ko) * 2006-05-19 2006-08-01 세신전자(주) 핸드폰의 화면구조
JP2008285641A (ja) * 2007-04-17 2008-11-27 Techno Onishi:Kk 略枠状両面粘着テープが貼着された長尺シートの製造方法、略枠状の両面粘着テープが貼着された長尺シート又は矩形シート及び液晶表示装置
KR20090096475A (ko) * 2006-12-29 2009-09-10 쓰리엠 이노베이티브 프로퍼티즈 컴파니 기재 상에 라미네이트를 장착하는 장치 및 그 방법

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KR20080013128A (ko) * 2006-08-07 2008-02-13 삼성전자주식회사 접착테이프와 이를 이용한 액정 표시 장치

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
JP2002098945A (ja) * 2000-09-21 2002-04-05 Seiko Epson Corp 液晶装置、液晶装置用遮光シート及び液晶装置の製造方法
KR200422857Y1 (ko) * 2006-05-19 2006-08-01 세신전자(주) 핸드폰의 화면구조
KR20090096475A (ko) * 2006-12-29 2009-09-10 쓰리엠 이노베이티브 프로퍼티즈 컴파니 기재 상에 라미네이트를 장착하는 장치 및 그 방법
JP2008285641A (ja) * 2007-04-17 2008-11-27 Techno Onishi:Kk 略枠状両面粘着テープが貼着された長尺シートの製造方法、略枠状の両面粘着テープが貼着された長尺シート又は矩形シート及び液晶表示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107263956A (zh) * 2016-04-08 2017-10-20 苏州达翔新材料有限公司 一种电磁干扰emi复合材料及其制备方法

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