WO2021192568A1 - 偏光フィルム及び画像表示装置 - Google Patents

偏光フィルム及び画像表示装置 Download PDF

Info

Publication number
WO2021192568A1
WO2021192568A1 PCT/JP2021/002317 JP2021002317W WO2021192568A1 WO 2021192568 A1 WO2021192568 A1 WO 2021192568A1 JP 2021002317 W JP2021002317 W JP 2021002317W WO 2021192568 A1 WO2021192568 A1 WO 2021192568A1
Authority
WO
WIPO (PCT)
Prior art keywords
polarizing film
resin layer
polymer
polarizing
less
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.)
Ceased
Application number
PCT/JP2021/002317
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
菅野　亮
基輔 片山
芳人 福山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Denko Corp
Original Assignee
Nitto Denko Corp
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 Nitto Denko Corp filed Critical Nitto Denko Corp
Priority to KR1020227024421A priority Critical patent/KR20220150278A/ko
Priority to CN202180022087.0A priority patent/CN115298587B/zh
Publication of WO2021192568A1 publication Critical patent/WO2021192568A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/023—Optical properties
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/02—Details
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/8793—Arrangements for polarized light emission
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light

Definitions

  • the linear expansion coefficient ⁇ 1 of the resin layer is 400 ⁇ 10 -6 / K or less. be.
  • the linear expansion coefficient ⁇ 2 of the resin layer is 300 ⁇ 10 -6 / K or less.
  • the dipole moment D of the monomer for forming the polymer is 2 Debye or less.
  • the polymer P contained in the resin layer 2 tends to be maintained in a state where the free volume is small even in a high temperature and high humidity environment.
  • the free volume of the polymer P is small, it is difficult to create a space in the resin layer 2 where iodine can enter.
  • the movement of iodine from the polarizer 1 to the resin layer 2 can be suppressed, and the permeation of iodine to the outside of the polarizing film 10 can be suppressed.
  • the polarization term ⁇ P can be calculated using, for example, known software such as HSPiP (version5).
  • the value of the polarization term ⁇ P may differ slightly depending on the software used. However, this error is usually negligible in calculating the value of y.
  • the value of x 3 can be specified by the following method.
  • the polarization term ⁇ P (MPa 1/2 ) in the Hansen solubility parameter is calculated for each of the plurality of types of monomers M.
  • the calculated polarization term ⁇ P is weighted by the molar ratio of each monomer M to perform a weighted average.
  • the resulting weighted average can be regarded as x 3.
  • the value of x 3 is not particularly limited, and is, for example, 1 to 10 (MPa 1/2 ).
  • the value of x 3 is preferably 6 (MPa 1/2 ) or less, more preferably 5 (MPa 1/2 ) or less, and further preferably 4 (MPa 1/2 ) or less.
  • the value of y calculated by the formula (2) is an index relating to the monomer M for forming the polymer P contained in the resin layer 2.
  • the value of y is also useful as an index for selecting the resin layer 2 suitable for suppressing the permeation of iodine contained in the polarizer 1 to the outside.
  • the value of y is particularly suitable as an index for predicting the characteristics of the resin layer containing the polymer having the structural unit derived from the (meth) acrylic acid ester.
  • the thickness of the adhesive layer 3 is not particularly limited, and is, for example, 3.0 ⁇ m or less, preferably 0.01 to 3.0 ⁇ m, more preferably 0.1 to 2.5 ⁇ m, and even more preferably. It is 0.5 to 1.5 ⁇ m. If the thickness of the adhesive layer 3 is too small, the cohesive force of the adhesive layer 3 may be insufficient and the peeling force may decrease. If the thickness of the adhesive layer 3 is too large, when stress is applied to the cross section of the polarizing film 10, peeling may occur in the adhesive layer 3. That is, in the polarizing film 10, peeling failure due to impact may occur.
  • the surface of the transparent protective film 4 may be subjected to an easy-adhesion treatment such as a corona treatment or a plasma treatment in order to improve the adhesion between the members.
  • An easy-adhesion layer may be arranged on the surface of the transparent protective film 4.
  • the resin layer 2 described above can be used as the easy-adhesion layer.
  • the change ⁇ Y1 of the simple substance transmittance can be measured by the following method.
  • the simple substance transmittance Ts1 of the laminate obtained by laminating the polarizing film 10 to the non-alkali glass via the pressure-sensitive adhesive layer 5 is measured.
  • the laminate is then placed in an atmosphere of 65 ° C. and 90% RH for 24 hours.
  • the simple substance transmittance Ts2 is measured for the laminated body after being placed in this atmosphere.
  • the value obtained by subtracting the single transmittance Ts1 from the single transmittance Ts2 is regarded as the change ⁇ Y1 of the single transmittance.
  • the surface of the transparent protective film was subjected to corona treatment.
  • An adhesive layer having a thickness of 20 ⁇ m was attached to this surface.
  • the pressure-sensitive adhesive layer was composed of an acrylic pressure-sensitive adhesive.
  • the surface of the transparent protective film containing the imidized MS resin was subjected to corona treatment.
  • An adhesive layer having a thickness of 20 ⁇ m was attached to this surface.
  • the pressure-sensitive adhesive layer was composed of an acrylic pressure-sensitive adhesive.
  • Comparative Example 2 The polarizing films A and B of Comparative Example 2 were prepared by the same method as in Example 1 except that the photocurable resin composition B was used as the coating liquid for forming the resin layer.
  • the photocurable resin composition B contains 12 parts by weight of hydroxyethylacrylamide (manufactured by KJ Chemicals, trade name: HEAA) and 20 parts by weight of 2-hydroxy-3-phenoxypropyl acrylate (manufactured by Toa Synthetic Co., Ltd.).

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Polarising Elements (AREA)
  • Laminated Bodies (AREA)
  • Liquid Crystal (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
PCT/JP2021/002317 2020-03-27 2021-01-22 偏光フィルム及び画像表示装置 Ceased WO2021192568A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020227024421A KR20220150278A (ko) 2020-03-27 2021-01-22 편광 필름 및 화상 표시 장치
CN202180022087.0A CN115298587B (zh) 2020-03-27 2021-01-22 偏振膜及图像显示装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020057508A JP7382264B2 (ja) 2020-03-27 2020-03-27 偏光フィルム及び画像表示装置
JP2020-057508 2020-03-27

Publications (1)

Publication Number Publication Date
WO2021192568A1 true WO2021192568A1 (ja) 2021-09-30

Family

ID=77891196

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/002317 Ceased WO2021192568A1 (ja) 2020-03-27 2021-01-22 偏光フィルム及び画像表示装置

Country Status (5)

Country Link
JP (1) JP7382264B2 (https=)
KR (1) KR20220150278A (https=)
CN (1) CN115298587B (https=)
TW (1) TWI873279B (https=)
WO (1) WO2021192568A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW202239861A (zh) * 2020-12-23 2022-10-16 日商三菱化學股份有限公司 偏光膜製造用聚乙烯醇系薄膜、偏光膜製造用聚乙烯醇系薄膜之製造方法、偏光膜
KR102891884B1 (ko) * 2022-03-03 2025-11-26 삼성에스디아이 주식회사 배리어층용 조성물, 이를 이용한 편광판 및 이를 포함하는 광학표시장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004177459A (ja) * 2002-11-25 2004-06-24 Konica Minolta Holdings Inc 光学フィルム、その製造方法、偏光板及び表示装置
JP2011221185A (ja) * 2010-04-07 2011-11-04 Nitto Denko Corp 粘着型偏光板及び画像表示装置
WO2017110342A1 (ja) * 2015-12-24 2017-06-29 コニカミノルタ株式会社 偏光板保護フィルム、その製造方法及び偏光板

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012212122A (ja) 2011-03-18 2012-11-01 Sumitomo Chemical Co Ltd 偏光子保護フィルム
CN105102490B (zh) 2013-03-27 2017-08-11 Lg化学株式会社 偏光器保护膜用树脂组合物、偏光器保护膜、含有该保护膜的偏光板及偏光板的制备方法
JP6692599B2 (ja) 2014-09-19 2020-05-13 日東電工株式会社 粘着剤層付き偏光板
WO2016052549A1 (ja) * 2014-09-30 2016-04-07 日東電工株式会社 片保護偏光フィルム、粘着剤層付偏光フィルム、画像表示装置およびその連続製造方法
JP6741477B2 (ja) * 2016-05-23 2020-08-19 日東電工株式会社 偏光フィルム、粘着剤層付き偏光フィルム、及び画像表示装置
JP2017227893A (ja) * 2016-06-21 2017-12-28 住友化学株式会社 偏光板セット
KR102065717B1 (ko) 2016-12-26 2020-01-13 주식회사 엘지화학 편광자 보호 필름, 이를 포함하는 편광판, 상기 편광판을 포함하는 액정 디스플레이 장치, 및 편광자 보호 필름용 코팅 조성물
JP2018169512A (ja) 2017-03-30 2018-11-01 住友化学株式会社 光学積層体
JP7241741B2 (ja) * 2017-09-22 2023-03-17 杉金光電（蘇州）有限公司 偏光板およびそれを含む画像表示装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004177459A (ja) * 2002-11-25 2004-06-24 Konica Minolta Holdings Inc 光学フィルム、その製造方法、偏光板及び表示装置
JP2011221185A (ja) * 2010-04-07 2011-11-04 Nitto Denko Corp 粘着型偏光板及び画像表示装置
WO2017110342A1 (ja) * 2015-12-24 2017-06-29 コニカミノルタ株式会社 偏光板保護フィルム、その製造方法及び偏光板

Also Published As

Publication number Publication date
TW202136057A (zh) 2021-10-01
KR20220150278A (ko) 2022-11-10
JP7382264B2 (ja) 2023-11-16
JP2021157063A (ja) 2021-10-07
TWI873279B (zh) 2025-02-21
CN115298587A (zh) 2022-11-04
CN115298587B (zh) 2025-02-28

Similar Documents

Publication Publication Date Title
CN106415341B (zh) 带粘合剂的偏振板及液晶显示装置
TWI708682B (zh) 積層光學薄膜之製造方法
KR101630938B1 (ko) 편광판, 그 제조 방법 및 이를 포함하는 화상표시장치
TWI794418B (zh) 活性能量線硬化型接著劑組成物、偏光薄膜及其製造方法、光學薄膜以及影像顯示裝置
TW201514269A (zh) 偏光薄膜用硬化型接著劑、偏光薄膜、光學薄膜及影像顯示裝置
WO2014091894A1 (ja) 偏光フィルムの製造方法
TW201634465A (zh) 交聯劑及硬化性樹脂組成物、偏光薄膜及其製造方法、光學薄膜以及影像顯示裝置
TW201741382A (zh) 硬化性樹脂組成物
CN109536046B (zh) 偏振膜用固化型胶粘剂、偏振膜、光学膜和图像显示装置
JP7382264B2 (ja) 偏光フィルム及び画像表示装置
WO2020039896A1 (ja) 偏光子、偏光フィルム、光学フィルム、ならびに画像表示装置
JP7610581B2 (ja) 偏光フィルム、画像表示装置及び偏光フィルムの製造方法
KR102909325B1 (ko) 편광 필름의 제조 방법
TWI917349B (zh) 偏光薄膜、影像顯示裝置及偏光薄膜之製造方法
JP2020034898A (ja) 偏光子、偏光フィルム、光学フィルム、ならびに画像表示装置
WO2023053798A1 (ja) 偏光フィルム、画像表示装置及び偏光フィルムの製造方法
KR20260010673A (ko) 적층 광학 필름의 제조 방법
KR20260018012A (ko) 편광 필름 및 그 제조 방법
JP2025160070A (ja) 積層光学フィルムおよび画像表示装置
JP2024083671A (ja) 硬化性組成物、偏光フィルム、光学フィルムおよび画像表示装置
WO2025215903A1 (ja) 積層光学フィルムおよび画像表示装置
WO2020039899A1 (ja) 偏光子、偏光フィルム、光学フィルム、ならびに画像表示装置
WO2020039894A1 (ja) 偏光子、偏光フィルム、光学フィルム、ならびに画像表示装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21775639

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21775639

Country of ref document: EP

Kind code of ref document: A1

WWG Wipo information: grant in national office

Ref document number: 202180022087.0

Country of ref document: CN