TW201613743A - Method for manufacturing liquid crystal display protection plate - Google Patents

Method for manufacturing liquid crystal display protection plate

Info

Publication number
TW201613743A
TW201613743A TW104129595A TW104129595A TW201613743A TW 201613743 A TW201613743 A TW 201613743A TW 104129595 A TW104129595 A TW 104129595A TW 104129595 A TW104129595 A TW 104129595A TW 201613743 A TW201613743 A TW 201613743A
Authority
TW
Taiwan
Prior art keywords
liquid crystal
crystal display
laminated body
protection plate
thermoplastic resin
Prior art date
Application number
TW104129595A
Other languages
Chinese (zh)
Other versions
TWI683741B (en
Inventor
Youji Ono
Kazuo Funazaki
Original Assignee
Kuraray Co
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 Kuraray Co filed Critical Kuraray Co
Publication of TW201613743A publication Critical patent/TW201613743A/en
Application granted granted Critical
Publication of TWI683741B publication Critical patent/TWI683741B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Polarising Elements (AREA)

Abstract

The present invention provides a method for manufacturing a liquid crystal display protection plate in which the in-plane retardation value is controlled so as to be within a predetermined range. The manufacturing method includes: extruding a thermoplastic resin laminated body in a molten state from a T-die (11), the thermoplastic resin laminated body being a polycarbonate resin layer on which a methacrylic resin layer is laminated on at least one surface of the polycarbonate resin layer; pinching the thermoplastic resin laminated body between a first cooling roll (12) and a second cooling roll (13) while forming a bank therebetween; cooling the thermoplastic resin laminated body by winding the thermoplastic resin laminated body around the second cooling roll (13) and a third cooling roll (14); and forming a resin plate (16) by taking up the thermoplastic resin laminated body with a take-up roll (15). Subsequently, after undergoing a process of heating the resin plate (16) for 1 minute or more at a temperature of 50 DEG C or more, the liquid crystal display protection plate is manufactured. The in-plane retardation value of the liquid crystal display protection plate is 50 to 210 nm and the decreasing rate of the in-plane retardation value of the liquid crystal display protection plate with respect to the in-plane retardation value of the resin plate (16) before heating is 5% or more.
TW104129595A 2014-09-08 2015-09-08 Method for manufacturing liquid crystal display protection plate TWI683741B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014181902 2014-09-08
JP2014-181902 2014-09-08

Publications (2)

Publication Number Publication Date
TW201613743A true TW201613743A (en) 2016-04-16
TWI683741B TWI683741B (en) 2020-02-01

Family

ID=55458639

Family Applications (1)

Application Number Title Priority Date Filing Date
TW104129595A TWI683741B (en) 2014-09-08 2015-09-08 Method for manufacturing liquid crystal display protection plate

Country Status (5)

Country Link
JP (1) JP6542780B2 (en)
KR (1) KR102365231B1 (en)
CN (1) CN106687278B (en)
TW (1) TWI683741B (en)
WO (1) WO2016038868A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI729089B (en) * 2016-03-23 2021-06-01 日商可樂麗股份有限公司 Manufacturing method of extruded resin board and extruded resin board
TW201808582A (en) 2016-08-12 2018-03-16 日商可樂麗股份有限公司 Method for manufacturing extruded resin sheet and extruded resin sheet
KR20190138811A (en) 2017-04-28 2019-12-16 주식회사 쿠라레 Extruded resin plate and its manufacturing method
CN110944841B (en) 2017-07-28 2021-12-03 株式会社可乐丽 Laminated extruded resin sheet and protective sheet for liquid crystal display with infrared sensor
WO2019107462A1 (en) 2017-11-30 2019-06-06 株式会社クラレ Thermoforming laminated plate and method for manufacturing same
JP7216717B2 (en) * 2018-04-16 2023-02-01 株式会社クラレ LAMINATED SHEET, MANUFACTURING METHOD THEREOF, AND DISPLAY WITH PROTECTIVE COVER
CN112188951B (en) 2018-05-23 2022-08-19 株式会社可乐丽 Extruded resin sheet, method for producing same, and laminate

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3457514B2 (en) * 1997-08-08 2003-10-20 株式会社クラレ Laminated plate and method of manufacturing the same
JP4239649B2 (en) 2003-03-31 2009-03-18 住友化学株式会社 Scratch-resistant resin plate and display window protection plate of portable information terminal using the same
JP2006103169A (en) 2004-10-06 2006-04-20 Mitsubishi Gas Chem Co Inc Polycarbonate resin laminate for liquid crystal display cover
JP5031598B2 (en) * 2008-01-28 2012-09-19 株式会社クラレ Polycarbonate resin laminate
JP2010085978A (en) * 2008-09-03 2010-04-15 Sumitomo Chemical Co Ltd Liquid crystal display protection plate
JP2015108832A (en) * 2008-09-03 2015-06-11 住友化学株式会社 Liquid crystal display protection plate
JP5411488B2 (en) * 2008-12-10 2014-02-12 富士フイルム株式会社 Film and manufacturing method thereof, optical compensation film for liquid crystal display plate, polarizing plate and liquid crystal display device
JP5620644B2 (en) * 2009-02-09 2014-11-05 住友化学株式会社 Multi-layer extrusion resin plate for touch panel and surface coating plate for touch panel
JP2011033751A (en) * 2009-07-31 2011-02-17 Meihan Shinku Kogyo Kk Protective cover for liquid crystal display
JP5292257B2 (en) * 2009-10-22 2013-09-18 株式会社クラレ Polycarbonate resin laminate
JP2011148266A (en) * 2010-01-25 2011-08-04 Fujifilm Corp Method for producing printing sheet
JP2012121142A (en) * 2010-12-06 2012-06-28 Sumitomo Chemical Co Ltd Method for manufacturing extruded resin plate
JP2013111834A (en) * 2011-11-28 2013-06-10 Sumitomo Chemical Co Ltd Resin plate for electrode substrate, electrode plate, and touch panel
JP5936395B2 (en) * 2012-03-16 2016-06-22 住友化学株式会社 Laminated plate and scratch-resistant laminated plate using the same
CN105829062B (en) * 2013-12-19 2017-09-19 株式会社可乐丽 The manufacture method of resin plate

Also Published As

Publication number Publication date
TWI683741B (en) 2020-02-01
CN106687278A (en) 2017-05-17
KR20170051455A (en) 2017-05-11
WO2016038868A1 (en) 2016-03-17
JPWO2016038868A1 (en) 2017-06-15
JP6542780B2 (en) 2019-07-10
KR102365231B1 (en) 2022-02-18
CN106687278B (en) 2019-03-15

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