WO2014030409A1 - Stratifié optique et procédé de fabrication de stratifié optique - Google Patents

Stratifié optique et procédé de fabrication de stratifié optique Download PDF

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Publication number
WO2014030409A1
WO2014030409A1 PCT/JP2013/066034 JP2013066034W WO2014030409A1 WO 2014030409 A1 WO2014030409 A1 WO 2014030409A1 JP 2013066034 W JP2013066034 W JP 2013066034W WO 2014030409 A1 WO2014030409 A1 WO 2014030409A1
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WO
WIPO (PCT)
Prior art keywords
layer
brightness enhancement
thermoplastic resin
resin
film
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PCT/JP2013/066034
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English (en)
Japanese (ja)
Inventor
隆敏 牟田
諒介 安田
根本　友幸
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三菱樹脂株式会社
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Application filed by 三菱樹脂株式会社 filed Critical 三菱樹脂株式会社
Priority to PCT/JP2013/072413 priority Critical patent/WO2014030698A1/fr
Priority to JP2014531664A priority patent/JP6311605B2/ja
Priority to TW102130217A priority patent/TWI579603B/zh
Publication of WO2014030409A1 publication Critical patent/WO2014030409A1/fr
Priority to JP2018054243A priority patent/JP2018141984A/ja

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • G02F1/133507—Films for enhancing the luminance
    • 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

Definitions

  • the optical layered body proposed by the present invention does not cause bubble entrainment or light phase shift due to the adhesive layer as in the prior art, and the axis shift of light separated by the brightness enhancement layer (X). Therefore, it can be suitably used as an optical laminate having a low content. Therefore, the optical layered body of the present invention can be applied to various image display devices such as a liquid crystal display device alone or in combination with other optical films.
  • thermoplastic resin (A) and the dispersed phase (II) forming the continuous phase (I) are added. Formation of a fine sea-island structure with the thermoplastic resin (B) to be formed can be achieved.
  • thermoplastic resin (A) that forms the continuous phase (I) and the thermoplastic resin (B) that forms the dispersed phase (II) are both polyester resins, and the thermoplastic resin (A) and the thermoplastic resin. It is preferable that the resin (B) is a different type of polyester resin.
  • polyester resins having a diol residue derived from isosorbide have good compatibility with other polyester resins. Therefore, in the island structure elongated in the orientation direction of the dispersed phase (II) generated when oriented in the uniaxial direction, the dispersion diameter in the axis (P-axis) direction perpendicular to the orientation direction of the dispersed phase (II) and parallel to the film surface Tends to be in the range of less than or equal to the wavelength of visible light, and this brings about an effect of facilitating improvement in luminance in the laminate.
  • Preferred mixtures of diol residues include, for example, ethylene glycol residues as the first residue, 1,4-butanediol, neopentyl glycol, isosorbide, diethylene glycol, polytetramethylene glycol, and 1,4 as the second residue. And those using a residue derived from at least one selected from the group consisting of cyclohexanedimethanol, spiroglycol, 2,2,4,4-tetramethylcyclobutane-1,3-diol. Preferably, those using an ethylene glycol residue as the first residue and an isosorbide residue or a 1,4-cyclohexanedimethanol residue as the second residue are exemplified.
  • the scattering type polarizing layer (X1) may contain other thermoplastic resin as long as it contains at least one thermoplastic resin (A) and one thermoplastic resin (B). Two or more thermoplastic resins corresponding to the thermoplastic resin (B) may be included.
  • the brightness enhancement layer (X) constituting the laminate includes at least two kinds of thermoplastic resins, and includes a film having a sea-island structure composed of a continuous phase (I) and a dispersed phase (II).
  • an additive such as a compatibilizing agent (C) may be added to the scattering polarizer as necessary for the purpose of improving the dispersibility of the dispersed phase (II).
  • the absolute value of the difference between the refractive index of the continuous phase (I) and the refractive index of the dispersed phase (II) is larger than 0.05 in the axis parallel to the orientation direction (S axis), High scattering reflection characteristics are exhibited with respect to polarized light, and the luminance improving ability of the obtained scattering type polarizing layer (X1) can be improved.
  • the absolute value of the difference between the refractive index of the continuous phase (I) and the refractive index of the dispersed phase (II) is more preferably greater than 0.1 and even more preferably greater than 0.15 on the S axis.
  • the absolute value of the difference in average refractive index between the thermoplastic resin (A) forming the continuous phase (I) and the thermoplastic resin (B) forming the dispersed phase (II) is from 0.05
  • the method etc. are mentioned.
  • the intrinsic birefringence of the thermoplastic resin (A) and the thermoplastic resin (B) are both positive, and the refractive index magnitude relationship between the (A) and the (B),
  • the thermoplastic resin (A) that forms the continuous phase (I) and the thermoplastic resin (B that forms the dispersion layer (II)) ) Is oriented by stretching in a uniaxial direction
  • the absolute value of the refractive index difference of the axis parallel to the orientation direction (S axis) tends to be greater after stretching than before stretching. It is done.
  • thermoplastic resin (A) and the thermoplastic resin (B) having an average refractive index difference of 0.05 or more are selected and stretched, the absolute value of the S-axis refractive index difference is larger than 0.05. can do.
  • the absolute value of the refractive index difference of the axis (P axis) perpendicular to the orientation direction may be smaller after stretching than before stretching. Therefore, the thermoplastic resin (A) and the thermoplastic resin (B) having a difference in average refractive index of 0.05 or more are selected and stretched within a range where the absolute value of the difference in refractive index of the P axis is not smaller than 0.05. There is a need to.
  • the dispersed phase (II) is a flat ellipsoid or a fiber. If the dispersion diameter in the P-axis direction of the disperse phase (II) is 10 nm or more and 200 nm or less, it is sufficiently smaller than the wavelength order of light, and therefore in the axis (P-axis) perpendicular to the orientation direction and parallel to the film surface. Even if the refractive index difference between the continuous phase (I) and the dispersed phase (II) is large, sufficient transmission characteristics can be exhibited.
  • the average polarization transmittance is more preferably 81% or more, and particularly preferably 84% or more.
  • the absolute value of the difference between the refractive index of the continuous phase (I) and the refractive index of the dispersed phase (II) is adjusted to a suitable range, or the continuous phase (I )
  • thermoplastic resins constituting this laminate As a means for setting the tear strength in the P-axis direction measured in accordance with JIS K7128-3 to 600 N / cm or more, at least two types of thermoplastic resins constituting this laminate have a positive intrinsic birefringence. It is possible to select a product or to select a product with good compatibility.
  • a polyester-based resin having a diol residue derived from isosorbide as the at least one thermoplastic resin
  • the size of the dispersed phase (II) during kneading with another thermoplastic resin is selected. Can be controlled.
  • the dispersion diameter is finely oriented in the P-axis direction and then sufficiently crystallized, which is achieved by combining these means. You can also
  • the multilayer polarizing layer (X2) is formed by alternately laminating a plurality of layers having a low refractive index and layers having a high refractive index, and selectively selects light having a specific wavelength by structural optical interference between the layers.
  • Such a multilayer laminated film can obtain a high reflectance equivalent to a film using metal by gradually changing the film thickness or by bonding films having different reflection peaks. It can also be used as a reflection mirror.
  • it can be used as a brightness enhancement layer that reflects only a specific polarization component.
  • the absorptive polarizing layer (Y) is based on a suitable conventional film as a base material, and the base material is dyed, stretched or crosslinked with a dichroic substance made of iodine, dichroic dye or the like. These are appropriately processed in an appropriate order and manner.
  • the absorbing polarizing layer (Y) preferably transmits linearly polarized light when natural light is incident thereon, and particularly preferably has excellent light transmittance and degree of polarization. From such a viewpoint, it is preferable that the base material of the absorption polarizing layer (Y) is mainly composed of polyvinyl alcohol.
  • a method of stretching an uniaxially stretched substrate after immersing an unstretched substrate in a solution of iodine and potassium iodide, or a uniaxially stretched substrate The method of immersing in the solution of an iodine and potassium iodide etc. can be mentioned.
  • light incident in a direction parallel to the axial direction extended uniaxially is absorbed, and light incident on an axis parallel to the film surface in a direction perpendicular to the axial direction extended uniaxially passes.
  • the brightness enhancement layer (X) transmits light incident in a direction perpendicular to the uniaxially stretched axial direction and parallel to the film surface, and the polarized light transmitted through the brightness enhancement layer (X) is absorption-type polarization. It is also transmitted through the layer (Y).
  • a substrate made of a polyvinyl alcohol resin to which iodine is adsorbed and oriented is treated with an aqueous solution containing potassium iodide and boric acid in order to stabilize the crosslinking.
  • the method include a method of immersing the base material in an aqueous solution containing potassium iodide and boric acid.
  • the concentration of boric acid and potassium iodide in the aqueous solution used is 2 to 20 parts by weight of potassium iodide, preferably 5 to 12 parts by weight, and 2 to 15 parts by weight of boric acid with respect to 100 parts by weight of water.
  • An aqueous solution containing 7 to 10 parts by weight is preferably used. If the amount of potassium iodide with respect to 100 parts by weight of water is less than 2 parts by weight or exceeds 20 parts by weight, it is difficult to obtain a satisfactory polarizing layer. Further, when the amount of boric acid relative to 100 parts by weight of water is less than 2 parts by weight, a satisfactory polarizing layer cannot be obtained, and when the amount exceeds 15 parts by weight, problems such as crystal precipitation occur, which is not preferable. .
  • the processing time is 5 seconds or longer and 120 seconds or shorter, and the processing temperature is 10 °
  • the processing time is preferably 5 seconds or longer and 60 seconds or shorter, and when the processing temperature is higher than 20 ° C. and lower than or equal to 30 ° C.
  • the washing treatment temperature is 4 ° C. or higher and the above-mentioned treatment conditions are satisfied.
  • a water washing treatment at a temperature higher than 30 ° C. or a water washing treatment for a time shorter than 5 seconds or longer than 120 seconds is not preferable in terms of the quality of the obtained film.
  • a highly transparent absorption polarizing layer (Y) having a high transparency and a high degree of polarization can be obtained by ordinary drying.
  • a specific organic direct dye having a high dichroic ratio with the base material made of the polyvinyl alcohol resin Is dissolved in water, an organic solvent, or a mixed solvent of water and an organic solvent, and then uniaxially stretched or uniaxially stretched by a compression stretching method.
  • the dichroic dye used for the absorption type polarizing layer (Y) may be any dichroic dye having a high dichroic ratio, but is generally selected from azo dyes.
  • the absorptive polarizing layer (Y) is preferably composed mainly of polyvinyl alcohol containing iodine.
  • the absorption polarizing layer (Y) mainly composed of polyvinyl alcohol containing iodine is weak against water and heat, and when used for a long time in a high temperature and high humidity state, the absorption polarizing layer ( Y) is preferably composed mainly of polyvinyl alcohol containing a dichroic dye.
  • At least one brightness enhancement layer (X) and an absorption polarization layer (Y) are included, and the brightness enhancement layer (X) includes the absorption polarization layer (Y).
  • the film is co-stretched in a uniaxial direction.
  • the method for forming the film is not particularly limited, and examples thereof include a T-die casting method, a calendar method, and an inflation method.
  • the T die casting method is preferable from the viewpoints of film formation stability and production efficiency.
  • the T-die casting method for example, at least two kinds of thermoplastic resins are dried, supplied to an extruder, and heated to a temperature equal to or higher than the melting point of the resin to be melted.
  • the cast composition may be formed by extruding the melted composition from the slit-shaped discharge port of the T die and firmly solidifying it on a cooling roll.
  • the extrusion temperature of the sheet depends on the flow characteristics of each resin, but when a polyethylene naphthalate resin is used, it is preferably about 270 ° C. to 340 ° C., more preferably 280 ° C. to 320 ° C. If the extrusion temperature is 270 ° C. or higher, the sheet can be formed sufficiently for the molten resin to flow. On the other hand, if it is 340 ° C. or lower, the sheet characteristics are less likely to deteriorate due to thermal decomposition of the resin.
  • the dispersed phase By uniaxially stretching in this manner, the dispersed phase can be arranged and fixed in a substantially constant direction in the continuous phase, and the anisotropic scattering function can be exhibited.
  • the uniaxial stretching increases the refractive index difference between the continuous phase (I) and the dispersed phase (II) in the stretching direction, and the dispersed phase (II) is elongated in the stretching direction.
  • the dispersion diameter in the P-axis direction of the phase is included within the preferable range of the present invention.
  • a brightness enhancement layer (X) can be produced.
  • the laminate includes at least one brightness enhancement layer (X) and an absorption polarizing layer (Y).
  • the brightness enhancement layer (X) and the absorption polarization layer (Y) It is important that both layers are laminated adjacent to each other without using an adhesive layer or an adhesive layer.
  • the simplest configuration is a configuration composed of two layers of a brightness enhancement layer (X) / absorptive polarizing layer (Y).
  • the simple structure includes other layers (Z), and is (Z) / (X) / (Y) or (X) / (Y) / (Z).
  • the other layer (Z) is preferably a layer that does not impair the optical properties, and the other layer (Z) may be one layer, two layers, or a plurality of three or more layers. It may consist of.
  • a structure like (Z) / (X) / (Y) / (Z) may be sufficient.
  • a brightness enhancement layer (x) that satisfies the present invention and is different from (X) and an absorbing polarizing layer (y) that satisfies the present invention and is different from (Y) were used.
  • the polarization transmission characteristics in an axis (P axis) perpendicular to the orientation direction and parallel to the film surface tend to be reduced.
  • the dispersion diameter in the P-axis direction of the dispersed phase (II) is 10 nm or more and 200 nm or less
  • the polarization reflection property in the S-axis is improved with respect to the increase in thickness, and This brings about an effect of suppressing a decrease in the polarization transmission characteristic on the P axis.
  • film refers to a thin flat product that is extremely small compared to its length and width and whose maximum thickness is arbitrarily limited, and is usually supplied in the form of a roll (Japan) Industrial standard JISK6900), and in general, “sheet” refers to a product that is thin by definition in JIS and generally has a thickness that is small instead of length and width.
  • sheet refers to a product that is thin by definition in JIS and generally has a thickness that is small instead of length and width.
  • main component in the present specification includes the meaning of allowing other components to be contained within a range that does not hinder the function of the main component unless otherwise specified.
  • the main component (when two or more components are main components, the total amount thereof) is 50% by mass or more, preferably 70% in the composition. It occupies at least 90% by mass, particularly preferably at least 90% by mass (including 100%).
  • X is preferably greater than X” and “preferably Y”, with the meaning of “X to Y” unless otherwise specified. It means “smaller”.
  • X or more when expressed as “X is an arbitrary number), it means “preferably larger than X” unless otherwise specified, and “Y or less” (Y is an arbitrary number). ) Includes the meaning of “preferably smaller than Y” unless otherwise specified.
  • the evaluation criteria for the P-axis were evaluated as “ ⁇ (good)” when the average polarization transmittance from 400 nm to 700 nm was 80% or more, and “ ⁇ (poor)” when the average was less than 80%.
  • the evaluation criteria for the S-axis were evaluated as “Good (good)” when the average polarization transmittance of 400 nm to 700 nm was 10% or less, and “X (poor)” when it exceeded 10%.
  • One side of the obtained sheet was subjected to corona treatment under the conditions of a processing output of 1 kW and a processing speed of 10 m / min using a generator (product name “CP1”) manufactured by VETAPHONE.
  • a scattering type polarizing layer having a continuous phase (I) made of a polyethylene naphthalate resin and a dispersed phase (II) made of a polyester-based resin having a diol residue derived from isosorbide
  • An original film (hereinafter referred to as original film A) of a brightness enhancement film having a corona-treated surface was produced.
  • Poval PVA124 manufactured by Kuraray Co., Ltd.
  • a polyvinyl alcohol resin was dissolved in water to a concentration of 12 wt%, and stirred overnight at 80 ° C. to prepare an aqueous solution of a polyvinyl alcohol resin.
  • it coated on the corona treatment surface of the raw fabric A of the brightness enhancement film produced as described above at a wet thickness of 200 ⁇ m, and dried in an oven at 50 ° C. for 1 hour. Thereafter, the film was stretched 5 times in the MD direction of the brightness enhancement film at a furnace temperature of 130 ° C. and a stretching speed of 5 mm / sec using a biaxial stretching machine manufactured by Island Kogyo.
  • the obtained laminate was immersed in warm water at 60 ° C. for 15 seconds in a state of being fixed with a fixture, and thereafter, an aqueous solution prepared with 0.05 parts iodine and 5 parts potassium iodide with respect to 100 parts by mass of water. Immersion at room temperature for 1 minute. Furthermore, after fixing a laminated body with a fixing tool, it was immersed at 65 degreeC for 5 minutes in the aqueous solution prepared to 6 parts of potassium iodide and 7.5 parts of boric acid with respect to 100 mass parts of water. Then, after being immersed and washed in pure water for 20 seconds, water droplets were removed and dried in an oven at 50 ° C. for 5 minutes to obtain the target optical laminate.
  • the thickness of the obtained laminate was measured, the thickness of the brightness enhancement layer was 130 ⁇ m, and the thickness of the absorption polarizing layer was 3 ⁇ m.
  • the evaluation results are shown in Table 1.
  • Poval PVA124 manufactured by Kuraray Co., Ltd.
  • a concentration of 12 wt% was dissolved in water to a concentration of 12 wt%, and stirred overnight at 80 ° C. to prepare an aqueous solution of a polyvinyl alcohol resin.
  • the thickness of the obtained laminate was measured, the thickness of the brightness enhancement layer was 115 ⁇ m, and the thickness of the absorption polarizing layer was 8 ⁇ m.
  • the evaluation results are shown in Table 1. At this time, the cross section of the film obtained with a scanning electron microscope (SEM) was observed, and the dispersion diameter in the P-axis direction of the dispersed phase (II) made of polyethylene naphthalate resin of the brightness enhancement layer was confirmed to be 82 nm. Met.
  • the optical laminates of Examples 1 to 3 that is, the optical laminates of the present invention have high polarization characteristics without reducing the polarization transmission characteristics of the brightness enhancement film. I understood. That is, it was found that the axis of the light polarized and separated by the brightness enhancement film does not occur. In addition, since it does not have an adhesive layer or an adhesive layer, there is no poor appearance such as bubbles, no optical phase shift caused by the adhesive layer or the adhesive layer, and an excellent optical laminate when incorporated in a liquid crystal display device It turns out that it can be.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)
  • Laminated Bodies (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

La présente invention porte sur un stratifié optique qui résout de manière fondamentale des problèmes particuliers à des couches de liaison et des couches adhésives, tels que la morsure de bulles survenant du fait de films d'amélioration de brillance et de plaques polarisantes qui sont liées conjointement par l'intermédiaire de couches adhésives et qui donne lieu à aucune compensation axiale de lumière polarisée et séparées par les films d'amélioration de brillance. Le stratifié optique de la présente invention comprend au moins une couche d'une couche d'amélioration de brillance (X) et d'une couche de polarisation de type absorption (Y), et la couche d'amélioration de brillance (X) et la couche de polarisation de type absorption (Y) sont stratifiées de manière adjacente sans une couche de liaison ou une couche adhésive interposée entre celles-ci.
PCT/JP2013/066034 2012-08-24 2013-06-11 Stratifié optique et procédé de fabrication de stratifié optique WO2014030409A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2013/072413 WO2014030698A1 (fr) 2012-08-24 2013-08-22 Stratifié optique et procédé de fabrication de stratifié optique
JP2014531664A JP6311605B2 (ja) 2012-08-24 2013-08-22 光学積層体及び光学積層体の製造方法
TW102130217A TWI579603B (zh) 2012-08-24 2013-08-23 光學積層體及光學積層體之製造方法
JP2018054243A JP2018141984A (ja) 2012-08-24 2018-03-22 光学積層体

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JP2012-185849 2012-08-24
JP2012185849 2012-08-24

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Cited By (1)

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JP6008031B1 (ja) * 2015-09-18 2016-10-19 三菱化学株式会社 異方性色素膜用組成物及び異方性色素膜

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Publication number Priority date Publication date Assignee Title
US20160033699A1 (en) 2014-08-04 2016-02-04 Nitto Denko Corporation Polarizing plate
CN111511548A (zh) 2017-12-28 2020-08-07 3M创新有限公司 用于制备多层光学层合体的方法
WO2021044927A1 (fr) * 2019-09-03 2021-03-11 東洋紡株式会社 Polariseur composite, et procédé de fabrication de celui-ci
WO2023176632A1 (fr) * 2022-03-14 2023-09-21 日東電工株式会社 Stratifié optique, lentille et procédé d'affichage

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