KR20230121748A - 복굴절 필름, 그 제조 방법, 및 광학 필름의 제조 방법 - Google Patents

복굴절 필름, 그 제조 방법, 및 광학 필름의 제조 방법 Download PDF

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Publication number
KR20230121748A
KR20230121748A KR1020237020034A KR20237020034A KR20230121748A KR 20230121748 A KR20230121748 A KR 20230121748A KR 1020237020034 A KR1020237020034 A KR 1020237020034A KR 20237020034 A KR20237020034 A KR 20237020034A KR 20230121748 A KR20230121748 A KR 20230121748A
Authority
KR
South Korea
Prior art keywords
film
solvent
polymer
birefringent film
birefringent
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
KR1020237020034A
Other languages
English (en)
Korean (ko)
Inventor
유지 시바타
Original Assignee
니폰 제온 가부시키가이샤
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 니폰 제온 가부시키가이샤 filed Critical 니폰 제온 가부시키가이샤
Publication of KR20230121748A publication Critical patent/KR20230121748A/ko
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polarising Elements (AREA)
KR1020237020034A 2020-12-28 2021-12-15 복굴절 필름, 그 제조 방법, 및 광학 필름의 제조 방법 Pending KR20230121748A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020219541 2020-12-28
JPJP-P-2020-219541 2020-12-28
PCT/JP2021/046321 WO2022145238A1 (ja) 2020-12-28 2021-12-15 複屈折フィルム、その製造方法、及び光学フィルムの製造方法

Publications (1)

Publication Number Publication Date
KR20230121748A true KR20230121748A (ko) 2023-08-21

Family

ID=82259270

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020237020034A Pending KR20230121748A (ko) 2020-12-28 2021-12-15 복굴절 필름, 그 제조 방법, 및 광학 필름의 제조 방법

Country Status (4)

Country Link
JP (1) JPWO2022145238A1 (https=)
KR (1) KR20230121748A (https=)
TW (1) TWI899400B (https=)
WO (1) WO2022145238A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025204708A1 (ja) * 2024-03-27 2025-10-02 日本ゼオン株式会社 複屈折フィルムの製造方法及び複屈折フィルム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019188205A1 (ja) 2018-03-30 2019-10-03 日本ゼオン株式会社 光学異方性積層体、偏光板、及び画像表示装置
WO2020137409A1 (ja) 2018-12-27 2020-07-02 日本ゼオン株式会社 光学異方性積層体及びその製造方法、円偏光板、並びに画像表示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05346507A (ja) * 1992-06-15 1993-12-27 Fuji Photo Film Co Ltd 複屈折性フィルムの製造方法およびそれを用いた液晶表示装置
US20060105115A1 (en) * 2004-11-16 2006-05-18 Keiji Kashima Retardation film and method for producing the same, optical functional film, polarizing film, and display device
JP2011232428A (ja) * 2010-04-26 2011-11-17 Konica Minolta Opto Inc 傾斜位相差フィルムおよび液晶表示装置
JP5993290B2 (ja) * 2012-11-22 2016-09-14 富士フイルム株式会社 セルロースアシレートフィルム、積層フィルム、偏光板、液晶表示装置およびセルロースアシレートフィルムの製造方法
CN107533175B (zh) * 2015-06-17 2021-06-11 东丽株式会社 多层层叠膜

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019188205A1 (ja) 2018-03-30 2019-10-03 日本ゼオン株式会社 光学異方性積層体、偏光板、及び画像表示装置
WO2020137409A1 (ja) 2018-12-27 2020-07-02 日本ゼオン株式会社 光学異方性積層体及びその製造方法、円偏光板、並びに画像表示装置

Also Published As

Publication number Publication date
WO2022145238A1 (ja) 2022-07-07
CN116685455A (zh) 2023-09-01
TWI899400B (zh) 2025-10-01
JPWO2022145238A1 (https=) 2022-07-07
TW202231705A (zh) 2022-08-16

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Patent event date: 20230614

Patent event code: PA01051R01D

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Patent event code: PA02012R01D

Patent event date: 20241120

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