WO2012026371A1 - 配向フィルムおよびその製造方法、位相差フィルムおよびその製造方法、ならびに表示装置 - Google Patents
配向フィルムおよびその製造方法、位相差フィルムおよびその製造方法、ならびに表示装置 Download PDFInfo
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- WO2012026371A1 WO2012026371A1 PCT/JP2011/068594 JP2011068594W WO2012026371A1 WO 2012026371 A1 WO2012026371 A1 WO 2012026371A1 JP 2011068594 W JP2011068594 W JP 2011068594W WO 2012026371 A1 WO2012026371 A1 WO 2012026371A1
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- film
- layer
- retardation
- alignment film
- anchor
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/16—Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/18—Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
-
- 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
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- 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
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/202—LCD, i.e. liquid crystal displays
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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
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- C09K2323/02—Alignment layer characterised by chemical composition
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- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/2457—Parallel ribs and/or grooves
Definitions
- the present invention relates to an oriented film having nano-order scale fine grooves on its surface and a method for producing the same. Moreover, this invention relates to the phase difference film which provided the phase difference layer on the surface of said oriented film, and its manufacturing method. Furthermore, this invention relates to the display apparatus provided with said retardation film.
- a phase difference film is used to emit light having different polarization states between a left-eye pixel and a right-eye pixel.
- a retardation region having a slow axis or a fast axis in one direction is provided corresponding to the left-eye pixel, and a slow axis or a fast axis is provided in a direction different from the retardation region.
- the phase difference area is provided corresponding to the right-eye pixel.
- the above-mentioned retardation region is formed by, for example, applying an alignment material such as liquid crystal on an alignment film having fine irregularities of the order of nm (nanometer) on the surface and curing it.
- an alignment material such as liquid crystal
- the orientation regulating force is weaker than that of an oriented film formed by rubbing. For this reason, for example, when large static electricity is generated in the alignment film or the like during the manufacturing process, the alignment material on the alignment film is disturbed in alignment, and the alignment disturbance causes a problem that stripes and unevenness are easily generated in the display image.
- a base material is fed out from a roll, and while the fed base material is moved while being supported by a guide roll, a resin is applied thereon or a mold roll is applied to the applied resin.
- a resin is applied thereon or a mold roll is applied to the applied resin.
- the present invention has been made in view of such problems, and the object thereof is an alignment film capable of reducing the occurrence of alignment disorder by a simple method, a manufacturing method thereof, a retardation film and a manufacturing method thereof, It is to provide a display device.
- the first oriented film of the present invention is constituted by laminating an anchor layer and an oriented film in this order on a substrate.
- the alignment film has a plurality of nano-order scale fine grooves extending in a specific direction on the surface.
- the anchor layer is in contact with the base material and the alignment film, and has a surface resistance of 10 13 ⁇ / cm 2 or less. Note that some layer may be provided on the back surface of the base material or the top surface of the alignment film.
- the first retardation film of the present invention is constituted by laminating an anchor layer, an alignment film and a retardation layer in this order on a substrate.
- the alignment film has a plurality of nano-order scale fine grooves extending in a specific direction on the surface.
- the anchor layer is in contact with the base material and the alignment film, and has a surface resistance of 10 13 ⁇ / cm 2 or less.
- a certain layer may be provided between the back surface of the base material or between the alignment film and the retardation layer.
- a first display device of the present invention is provided on a display side of a light source, a display cell that performs display based on light from the light source, a first polarizer provided on a light source side of the display cell, and a display cell.
- the second polarizer and a retardation film disposed on the light exit side of at least one of the first polarizer and the second polarizer.
- the retardation film mounted on the display device has the same configuration as the first retardation film.
- the surface resistance of the anchor layer provided between the substrate and the alignment film is 10 13 ⁇ . / Cm 2 or less.
- the second alignment film of the present invention is provided with an alignment film on the main surface of the substrate having a protective layer laminated on the back surface.
- the alignment film has a plurality of nano-order scale fine grooves extending in a specific direction on the surface.
- the protective layer has a surface resistance of 10 13 ⁇ / cm 2 or less. A certain layer may be provided between the base material and the alignment film or on the upper surface of the alignment film.
- the second retardation film of the present invention is constituted by laminating an alignment film and a retardation layer in this order on the main surface of a base material having a protective layer laminated on the back surface.
- the alignment film has a plurality of nano-order scale fine grooves extending in a specific direction on the surface.
- the protective layer has a surface resistance of 10 13 ⁇ / cm 2 or less. A certain layer may be provided between the base material and the alignment film or between the alignment film and the retardation layer.
- a second display device of the present invention is provided on a display side of a light source, a display cell that performs display based on light from the light source, a first polarizer provided on the light source side of the display cell, and a display cell.
- the second polarizer and a retardation film disposed on the light exit side of at least one of the first polarizer and the second polarizer.
- the retardation film mounted on this display device has the same configuration as the second retardation film.
- the surface resistance of the protective layer provided on the back surface of the substrate is 10 13 ⁇ / cm 2 or less. It has become. Thereby, in the manufacturing process of the second alignment film and the second retardation film, static electricity hardly occurs in the film.
- the manufacturing method of the 1st oriented film of this invention includes the following two processes.
- A1 After an anchor layer having a surface resistance of 10 13 ⁇ / cm 2 or less is formed on a base material movably supported by a roll, an uncured energy-curing resin layer is formed on the anchor layer
- the first step (A2) is to press a mold having a plurality of nano-order scale fine grooves extending in a specific direction on the surface of the energy curable resin layer, and by curing the energy curable resin layer in that state, Second step of transferring a mold reversal pattern onto the surface of the energy curable resin layer
- the manufacturing method of the 1st phase difference film of the present invention includes the following three processes.
- (B1) After an anchor layer having a surface resistance of 10 13 ⁇ / cm 2 or less is formed on a base material movably supported by a roll, an uncured energy-curing resin layer is formed on the anchor layer
- the first step (B2) by pressing a mold having a plurality of nano-order-scale fine grooves extending in a specific direction on the surface, and curing the energy curable resin layer in that state
- the alignment film includes an alignment material that aligns in accordance with the irregularities on the surface of the alignment film.
- the surface resistance of the anchor layer provided between the substrate and the alignment film is 10 13 ⁇ / cm 2. It is as follows. This makes it difficult for static electricity to occur in the film during the manufacturing process.
- the manufacturing method of the 2nd orientation film of this invention includes the following two processes.
- (C1) It is supported by the roll so as to be movable, and a protective layer having a surface resistance of 10 13 ⁇ / cm 2 or less is laminated on the main surface of the base material laminated on the surface on the roll side.
- First step of forming the energy curable resin layer (C2) The energy curable resin layer is pressed against the energy curable resin layer with a mold having a plurality of nano-order-scale fine grooves extending in a specific direction on the surface.
- the manufacturing method of the 2nd phase difference film of the present invention includes the following three processes.
- (D1) On the main surface of the substrate that is supported by a roll so as to be movable and has a surface resistance of 10 13 ⁇ / cm 2 or less laminated on the roll-side surface, uncured energy First step (D2) of forming a cured resin layer A mold having a plurality of nano-order-scale fine grooves extending in a specific direction on the surface is pressed against the energy cured resin layer, and the energy cured resin layer is placed in that state.
- the surface resistance of the protective layer provided in the back surface of the base material will be 10 ⁇ 13 > ohm / cm ⁇ 2 > or less. Yes. This makes it difficult for static electricity to occur in the film during the manufacturing process.
- the anchor layer provided between the base material and the orientation film, or the back surface of the base material
- an antistatic function is added to the protective layer provided on the protective layer, so that a special layer for antistatic is provided in the film, or a special layer for antistatic is provided. It is possible to prevent large static electricity from being generated on the film during the manufacturing process without providing facilities. As a result, the occurrence of alignment disorder can be reduced by a simple method.
- FIG. 1 It is a figure which represents perspectively an example of composition of a phase contrast film concerning a 1st embodiment of the present invention. It is a figure showing an example of composition of an orientation film of Drawing 1 in perspective. It is a figure showing an example of the relationship between the raw material of the anchor layer of FIG. 1, and the characteristic of retardation film with a comparative example. It is a figure showing the other example of the relationship between the raw material of the anchor layer of FIG. 1, and the characteristic of retardation film with a comparative example. It is a figure explaining an example of the manufacturing method of the oriented film of FIG. It is a figure explaining an example of the manufacturing method of the phase difference film of FIG. It is a figure explaining an example of the process following FIG.
- FIG. 1 is a perspective view showing an example of the configuration of the retardation film 10 according to the first embodiment of the present invention.
- the retardation film 10 of the present embodiment is obtained by providing a retardation layer 12 on an alignment film 11 as shown in FIG. 1, for example.
- the alignment film 11 is configured by, for example, laminating an anchor layer 14 and an alignment film 15 on the base material 13 in this order from the base material 13 side.
- the base material 13 secures the rigidity of the retardation film 10 as a whole, and is made of, for example, a transparent resin film. It is preferable that the base material 13 is comprised with a thing with small optical anisotropy, ie, a small birefringence.
- the transparent resin film having such characteristics include TAC (triacetyl cellulose), COP (cycloolefin polymer), COC (cycloolefin copolymer), PMMA (polymethyl methacrylate), and the like.
- examples of the COP include ZEONOR, ZEONEX (registered trademark of Nippon Zeon), and Arton (registered trademark of JSR).
- the thickness of the substrate 13 is, for example, 30 ⁇ m to 500 ⁇ m.
- the base material 13 is preferably made of a material that is excellent in dimensional stability and hardly expands or contracts due to the external environment.
- a thermoplastic norbornene-type resin film is mentioned, for example.
- examples of the thermoplastic norbornene resin film include the above-mentioned ZEONOR.
- the base material 13 may have a single layer structure or a multilayer structure.
- the anchor layer 14 is an adhesive layer for firmly attaching the alignment film 15 to the base material 13, and is in contact with the base material 13 and the alignment film 15.
- the anchor layer 14 is firmly adhered to the base material 13 and has excellent adhesion to the alignment film 15.
- the anchor layer 14 has an antistatic function in addition to the function of firmly attaching the alignment film 15 to the base material 13.
- the antistatic function is a function obtained by smooth movement of electrons in a substance.
- the surface resistance of the anchor layer 14 is 10 13 ⁇ / cm 2 or less, preferably 10 12 ⁇ / cm 2 or less.
- the anchor layer 14 is based on an anchor material containing, for example, 50 parts by weight or more and 90 parts by weight or less of a trifunctional or higher acrylate monomer, a conductive material, and a solvent in which the conductive material is dispersed, as described in detail later. After being coated on the material 13, it is formed by drying and curing (polymerization).
- the base material 13 is made of a material that does not have good adhesion to the alignment film 15, such as the thermoplastic norbornene resin film described above. Even when it is, the alignment film 15 can be firmly adhered to the base material 13.
- the antistatic function of the anchor layer 14 is manifested by the conductive material described above.
- the anchor layer 14 when the anchor layer 14 is manufactured using the acrylate monomer exemplified above as a main raw material, the anchor layer 14 contains almost no acrylate monomer as a raw material. This is because the monomer is consumed in the polymerization process. However, when IR (infrared absorption spectroscopy) spectrum analysis is performed on the anchor layer 14, an acrylic component slightly remaining in the anchor layer 14 is detected. In addition, the description about the raw material of the anchor layer 14 shall be explained in full detail at the time of description of the manufacturing method later.
- the conductive material is, for example, a conductive polymer, an ionic liquid, a conductive inorganic filler, or a quaternary ammonium salt.
- the conductive polymer is, for example, a polythiophene-based, polyaniline-based, or polypyrrole-based polymer.
- the ionic liquid include CIL-312, CIL-512, and CIL-641 (all manufactured by Nippon Carlit Co., Ltd.). Note that the ionic liquid includes an ionic conductive polymer.
- the above-mentioned solvent contains butyl acetate and isopropyl alcohol, for example.
- Butyl acetate has the property of roughening the surface of the substrate 13, and is a material particularly suitable for roughening the surface of the above-described thermoplastic norbornene resin film.
- Isopropyl alcohol is a material suitable for dissolving (or dispersing) the conductive material added to the anchor material.
- the blending ratio of butyl acetate and isopropyl alcohol contained in the solvent is preferably 4: 1.
- the blending ratio of butyl acetate and isopropyl alcohol contained in the solvent is preferably 1: 1.
- a polymerization initiator is included in the above-described anchor material.
- the polymerization initiator include a photopolymerization initiator that has an absorption wavelength in the ultraviolet region and reacts with ultraviolet light, or a thermal polymerization initiator that reacts with heat.
- various additives may be contained in the above-mentioned anchor material as needed.
- the alignment film 15 is for aligning an alignment material (for example, a liquid crystalline monomer) that is a raw material of the retardation layer 12 in the manufacturing process.
- the alignment film 15 is formed on the base material 13 via the anchor layer 14, and has two types of groove regions 15A and 15B on its surface, for example, as shown in FIG.
- the groove regions 15A and 15B have, for example, a band shape, and are alternately arranged in a direction intersecting with the extending direction of the groove regions 15A and 15B.
- These stripe widths are, for example, the same width as the pixel pitch in a display device (described later).
- the groove region 15A has a plurality of fine grooves V1 on the surface.
- the width of each microgroove V1 is, for example, several hundred nm, and the depth of each microgroove V1 is, for example, several hundred nm.
- the plurality of fine grooves V1 extend along the same direction d1 (not shown).
- the groove region 15B has a plurality of fine grooves V2 on the surface.
- the width of each fine groove V2 is several hundred nm, for example, and the depth of each fine groove V2 is several hundred nm, for example.
- the plurality of fine grooves V2 extend along the same direction d2 (not shown).
- the directions d1 and d2 are orthogonal to each other, for example.
- the retardation layer 12 is formed in contact with the groove regions 15A and 15B of the alignment film 15.
- the phase difference layer 12 is formed by alternately arranging strip-like phase difference regions 12A and 12B.
- the retardation region 12A is formed in contact with the groove region 15A
- the retardation region 12B is formed in contact with the groove region 15B.
- the phase difference regions 12A and 12B have different phase difference characteristics.
- the retardation region 12A has an optical axis (slow axis AX1) in the extending direction of the fine groove V1
- the retardation region 12B has an optical axis (in the extending direction of the fine groove V2). It has a slow axis AX2).
- the retardation layer 12 includes, for example, a polymerized polymer liquid crystal material. That is, in the retardation layer 12, the alignment state of liquid crystal molecules (not shown) is fixed.
- a material selected according to a phase transition temperature (liquid crystal phase-isotropic phase), a refractive index wavelength dispersion characteristic, a viscosity characteristic, a process temperature, and the like of the liquid crystal material is used.
- the thickness of the retardation layer 12 is, for example, 0.1 ⁇ m to 10 ⁇ m.
- the retardation layer 12 does not need to be configured only with the polymerized polymer liquid crystal material.
- An unpolymerized liquid crystal monomer may be contained. This is because the unpolymerized liquid crystalline monomer contained in the retardation layer 12 is aligned in the same direction as the alignment direction of liquid crystal molecules (not shown) existing around it by an alignment process (heating process) described later. This is because it has alignment characteristics similar to those of the polymer liquid crystal material.
- the long axis of the liquid crystal molecules is along the extending direction of the fine groove V1.
- the upper liquid crystal molecules of the retardation region 12A are also aligned following the alignment direction of the lower liquid crystal molecules. That is, the orientation of the liquid crystal molecules is controlled by the shape of the fine groove V1 extending in a predetermined direction in the groove region 15A, and the optical axis of the retardation region 12A is set.
- the major axis of the liquid crystal molecules is along the extending direction of the fine groove V2.
- the upper liquid crystal molecules in the retardation region 12B are also aligned following the alignment direction of the lower liquid crystal molecules. That is, the orientation of the liquid crystal molecules is controlled by the shape of the fine groove V2 extending in a predetermined direction in the groove region 15B, and the optical axis of the retardation region 12B is set.
- the retardation value of the retardation layer 12 is set by adjusting the constituent materials and thicknesses of the retardation regions 12A and 12B.
- the retardation value of the retardation layer 12 is preferably set in consideration of the retardation of the substrate 13 when the substrate 13 has a retardation.
- thermoplastic norbornene resin film having a width of 1350 mm and a thickness of 100 ⁇ m is prepared by a melt extrusion manufacturing method (not shown). Hereinafter, this is used as the substrate 13.
- the material used as the anchor material 14A is adjusted. Specifically, a resin material containing 50 parts by weight or more and 90 parts by weight or less of a trifunctional or higher acrylate monomer, a conductive material, and a solvent for dispersing the conductive material is used as the anchor material 14A. More specifically, the anchor material 14A includes 50 parts by weight or more and 90 parts by weight or less of a trifunctional or higher acrylate monomer, a compatible ester resin, and a urethane resin that increases the hardness of the resin.
- the acrylate monomer contained in the anchor material 14A is preferably 50 parts by weight or more and 65 parts by weight or less when other materials include an ester resin and a urethane resin.
- the anchor material 14A for the thermoplastic norbornene resin film is most preferably one containing 60 parts by weight of an acrylate monomer, 20 parts by weight of an ester resin, and 20 parts by weight of a urethane resin.
- the anchor material 14A described in Examples 1, 2, 3 and Comparative Example 1 is 60 parts by weight of pentaerythritol triacrylate (Toa Gosei: Aronix M-305), polyester acrylate (Toa Gosei: Aronix M-). 9050) 20 parts by weight, and 20 parts by weight of UV urethane acrylate oligomer (manufactured by Nippon Gosei Kagaku: UV7605B).
- the anchor material 14A described in Examples 4, 5, 6 and Comparative Example 2 were both 60 parts by weight of pentaerythritol triacrylate (Toa Gosei: Aronix M-306), polyester acrylate (Toa Gosei: Aronix M-). 8060) 20 parts by weight, and 20 parts by weight of a UV urethane acrylate oligomer (manufactured by Nippon Gosei Kagaku: UV7630B).
- the anchor material 14A described in Examples 1 and 4 includes, as additives, 3.5 parts by weight of Irgacure-184D which is a photopolymerization initiator, 0.01 parts by weight of a leveling agent, and an ionic liquid which is a conductive material. 15 parts by weight (manufactured by Nippon Carlit Co., Ltd .: CIL-641), 150 parts by weight of butyl acetate, and 50 parts by weight of isopropyl alcohol.
- the anchor material 14A described in Examples 2 and 5 includes, as additives, 3.5 parts by weight of Irgacure-184D as a photopolymerization initiator, 0.01 parts by weight of a leveling agent, and a polythiophene-based material as a conductive material. It contains 15 parts by weight of a conductive polymer (SAS-PE-02), 100 parts by weight of butyl acetate, and 100 parts by weight of isopropyl alcohol.
- the anchor material 14A described in Examples 3 and 6 includes, as additives, 3.5 parts by weight of Irgacure-184D as a photopolymerization initiator, 0.01 parts by weight of a leveling agent, and a polypyrrole-based material as a conductive material.
- Anchor material 14A described in Comparative Examples 1 and 2 contains, as additives, 3.5 parts by weight of Irgacure-184D as a photopolymerization initiator, 0.01 parts by weight of a leveling agent, and 100 parts by weight of butyl acetate. It is out.
- the anchor material 14A described in the comparative example is not added with a conductive material as described in each example.
- the anchor layer 14 is formed on the base material 13. Specifically, first, for example, as shown in FIG. 5, after unwinding the base material 13 from the unwinding roll 100, the anchor material 14 ⁇ / b> A is placed on the upper surface of the unwound base material 13, for example, from the discharger 110. The anchor layer 14B is formed by dripping. Next, for example, after the anchor layer 14B is dried by the heater 120, the anchor layer 14B is irradiated with UV light having an intensity of, for example, about 1000 mJ / cm 2 using the ultraviolet irradiator 130. Harden. In this way, the anchor layer 14 is formed on the base material 13. At this time, the anchor layer 14 is firmly adhered to the surface of the substrate 13 and is not easily peeled off. Then, the base material 13 is wound up on the winding roll 140.
- butyl acetate is used as a solvent, but a solvent that does not affect the base material 13 can be used instead of butyl acetate. Even in such a case, the anchor layer 14 can be firmly adhered to the surface of the base material 13.
- a solvent that causes roughness on the surface of the base material 13 such as butyl acetate is used as the solvent, the anchor layer 14 can be more firmly adhered to the surface of the base material 13 due to the surface roughness. Is possible.
- Examples of the solvent that causes the surface of the substrate 13 to be rough include acetone, isobutyl alcohol, isopropyl alcohol, isopentyl alcohol, diethyl ether, ethylene glycol, ethylene glycol monoethyl ether, ethylene glycol monoethyl ether acetate, ethylene glycol mono- Common organics such as normal-butyl ether, ethylene glycol monomethyl ether, isobutyl acetate, isopropyl acetate, icopentyl acetate, ethyl acetate, cyclohexanone, 1,4-dioxane, tetrahydrofuran, toluene, 1-butanol, methanol, methyl isobutyl ketone, methyl ethyl ketone A solvent, or a mixture of two or more of these may be used.
- the alignment film 11 is formed by forming the alignment film 15 on the anchor layer 14.
- the alignment film 15 either a plate-shaped master or a roll-shaped master can be used.
- a case where a roll-shaped master is used will be described.
- FIG. 6 illustrates an example of a configuration of a manufacturing apparatus that manufactures the alignment film 15 using a roll-shaped master.
- 6 includes an unwinding roll 200, guide rolls 220, 230, 250, 260, a nip roll 240, a mold roll 210, a winding roll 270, a discharger 280, and an ultraviolet irradiator 290. It is equipped with.
- the unwinding roll 200 is obtained by winding the film 11A in which the anchor layer 14 is formed on the substrate 13 in a concentric manner and supplying the film 11A.
- the film 11 ⁇ / b> A unwound from the unwinding roll 200 flows in the order of the guide roll 220, the guide roll 230, the nip roll 240, the mold roll 210, the guide roll 250, and the guide roll 260, and finally is taken up by the take-up roll 270. It is supposed to be.
- the guide rolls 220 and 230 are for guiding the film 11 ⁇ / b> A supplied from the unwinding roll 200 to the nip roll 240.
- the nip roll 240 presses the film 11 ⁇ / b> A supplied from the guide roll 230 against the mold roll 210.
- the mold roll 210 is disposed with a predetermined gap from the nip roll 240.
- the guide roll 250 is for peeling off the film 11A wound around the mold roll 210.
- the guide roll 260 is for guiding the film 11 ⁇ / b> A peeled off by the guide roll 250 to the take-up roll 270.
- the discharger 280 is provided through a predetermined gap with a portion of the film 11 ⁇ / b> A supplied from the unwinding roll 200 in contact with the guide roll 230.
- the discharger 280 drops, for example, a UV curable resin liquid 15C containing a UV curable acrylic resin liquid onto the film 11A.
- the ultraviolet irradiator 290 irradiates the portion of the film 11A supplied from the unwinding roll 200 after passing through the nip roll 240 and the portion in contact with the mold roll 210 with ultraviolet rays. Yes.
- the alignment film 11 is formed using the manufacturing apparatus having such a configuration. Specifically, first, the film 11A unwound from the unwinding roll 200 is guided to the guide roll 230 via the guide roll 220, and then the uncured UV curable resin liquid 15C (uncured uncured) is formed on the film 11A. The completed energy curable resin layer) is dropped from, for example, the discharger 280 to form the UV curable resin layer 15D. The UV curable resin layer 15D on the film 11A is pressed against the peripheral surface of the mold roll 210 by the nip roll 240 through the film 11A. Thereby, the UV curable resin layer 15D comes into contact with the peripheral surface of the mold roll 210, and the uneven shape formed on the peripheral surface of the mold roll 210 is transferred to the UV curable resin layer 15D.
- the UV curable resin layer 15D is cured by irradiating the UV curable resin layer 15D with ultraviolet rays from the ultraviolet irradiator 290. Subsequently, after the film 11 ⁇ / b> A is peeled off from the mold roll 210 by the guide roll 250, the film 11 ⁇ / b> A is taken up by the take-up roll 270 through the guide roll 260. In this way, the oriented film 11 is formed.
- the retardation film 10 is formed by forming the retardation layer 12 on the alignment film 11. Specifically, for example, as shown in FIG. 7, after the alignment film 11 is unwound from the unwinding roll 300, a liquid crystalline monomer is formed on the surfaces of the plurality of fine grooves V ⁇ b> 1 and V ⁇ b> 2 in the unwound alignment film 11.
- a liquid crystal layer 12 ⁇ / b> D is formed by dropping a liquid crystal 12 ⁇ / b> C containing liquid from the discharger 310.
- the liquid crystal 12C a high molecular compound having no methylene spacer between the polymerizable functional group and the liquid crystal skeleton is preferably used. In such a case, since the nematic phase is exhibited near room temperature, the heating temperature for the alignment treatment in the subsequent step can be lowered.
- a solvent for dissolving the liquid crystalline monomer, a polymerization initiator, a polymerization inhibitor, a surfactant, a leveling agent, and the like can be used in the liquid crystal layer as necessary.
- a solvent it does not specifically limit as a solvent, It is preferable to use the thing with the high solubility of a liquid crystalline monomer, low vapor pressure at room temperature, and being hard to evaporate at room temperature.
- the solvent that hardly evaporates at room temperature include 1-methoxy-2-acetoxypropane (PGMEA), toluene, methyl ethyl ketone (MEK), and methyl isobutyl ketone (MIBK).
- the alignment treatment (heating treatment) of the liquid crystalline monomer of the liquid crystal layer 12D applied to the surface of the alignment film 11 is performed.
- This heat treatment is performed at a temperature higher than the phase transition temperature of the liquid crystalline monomer (phase transition temperature between the liquid crystal phase and the isotropic phase), and when a solvent is used, a temperature higher than the temperature at which the solvent dries, for example, 50 ° C. to 130 ° C. To do.
- the coating of the liquid crystalline monomer in the previous step causes shear stress to act on the interface between the liquid crystalline monomer and the substrate, resulting in flow orientation (flow orientation) and force orientation (external force orientation), and liquid crystal molecules are not intended. May be oriented in the direction.
- the heat treatment is performed in order to temporarily cancel the alignment state of the liquid crystalline monomer that has been aligned in such an unintended direction.
- a solvent dries and becomes only a liquid crystalline monomer, The state becomes an isotropic phase.
- the liquid crystal layer 12D is gradually cooled to a temperature slightly lower than the phase transition temperature.
- the liquid crystalline monomer is aligned according to the pattern of the plurality of fine grooves V1 and V2 formed on the surface of the alignment film 11. That is, the liquid crystalline monomer is aligned along the extending direction of the plurality of fine grooves V1 and V2.
- the ultraviolet irradiator 330 irradiates the liquid crystal layer 12D after the alignment treatment with ultraviolet rays to polymerize the liquid crystalline monomer in the liquid crystal layer 12D.
- the treatment temperature is generally around room temperature in general, but the temperature may be raised to a temperature equal to or lower than the phase transition temperature in order to adjust the retardation value.
- the alignment state of the liquid crystal molecules is fixed along the extending direction of the plurality of fine grooves V1 and V2, and the retardation layer 12 (retardation regions 12A and 12B) is formed.
- the retardation film 10 is completed.
- the retardation film 10 is wound around a winding roll 340.
- FIG. 8 summarizes the adhesion, surface resistance, and liquid crystal alignment of the retardation film according to the example shown in FIGS. 3 and 4 and the adhesion, surface resistance, and liquid crystal alignment of the retardation film according to the comparative example. Is. In FIG. 8, the results for the retardation film not shown in FIGS. 3 and 4 are also shown. 3, 4, and 8, the liquid crystal alignment is “ ⁇ ” because when 100 retardation films 10 are prepared and each retardation film 10 is mounted on a display device, stripes and unevenness are observed. This means that none of them occurred. Further, in FIG.
- the liquid crystal alignment is “ ⁇ ” because when 100 retardation films 10 are prepared and each retardation film 10 is mounted on a display device, stripes and unevenness are slightly visible. It means that there was. 3, 4, and 8, the liquid crystal orientation is “x” because when 100 retardation films 10 are prepared and each retardation film 10 is mounted on a display device, It means that there was something that was clearly visible. 3, 4, and 8, the adhesiveness is “ ⁇ ” because when 100 retardation films 10 were prepared, none of the films were peeled off. I mean. In FIG. 8, the adhesion of “ ⁇ ” means that when 100 retardation films 10 were prepared, there was a slight peeling.
- the anchor layer 14 when the anchor layer 14 has an antistatic function and the surface resistance of the anchor layer 14 is 10 13 ( ⁇ / cm 2 ) or less, the alignment defect is improved.
- the anchor layer 14 when the anchor layer 14 is provided with an antistatic function and the surface resistance of the anchor layer 14 is 10 12 ( ⁇ / cm 2 ) or less, no alignment defect occurs. I understand that there is no. Therefore, from FIG. 3, FIG. 4 and FIG. 8, the surface resistance of the anchor layer 14 is preferably 10 13 ( ⁇ / cm 2 ) or less from the viewpoint of reducing alignment defects. Is less than 10 12 ( ⁇ / cm 2 ), from the viewpoint of reducing alignment defects.
- the conductive material in the anchor layer 14 has no particular adverse effect on the adhesion with the base material 13 and the transmittance.
- the conductive material in the anchor layer 14 has no particular adverse effect on the adhesion with the base material 13 and the transmittance.
- the alignment film 15 when a large amount of conductive material is added to the anchor material 14A and the surface resistance of the anchor layer 14 is extremely reduced to about 10 10 ( ⁇ / cm 2 ), the alignment film 15 and It can also be seen that there is a slight adverse effect on the adhesiveness.
- the ionic liquid has a higher transparency than other materials. This indicates that the solubility of the ionic liquid in the solvent is high. Accordingly, it can be said that an ionic liquid is most suitable as the conductive material added to the anchor layer 14.
- FIG. 10 shows the functional number of the acrylate monomer that is the main raw material of the anchor material 14A (the functional number of the resin described in the column of the resin 1 in FIGS. 3 and 4) and the characteristics (adhesion, dimensions) of the retardation film 10. Change rate).
- the adhesiveness of “x” means that a lot of peeling occurred when 100 retardation films 10 were produced.
- “ ⁇ ” in the adhesion column in FIG. 10 has the same meaning as “ ⁇ ” in the adhesion column in FIGS.
- the dimensional change rate of “ ⁇ ” means that no curling has occurred or curling has occurred to such an extent that it does not cause any problem in actual use.
- the dimensional change rate is “x”, which means that a large curl that cannot withstand actual use has occurred.
- the anchor layer 14 has a small cure shrinkage rate, so that the dimensional change rate of the retardation film 10 is also small. It can be seen that the adhesion between the layer 14 and the substrate 13 is poor. On the other hand, when an acrylate monomer having 5 or more functional groups is mainly included in the anchor material 14A, the adhesion between the anchor layer 14 and the base material 13 is good, but the curing shrinkage rate of the anchor layer 14 is large, It can be seen that the dimensional change rate of the retardation film 10 is also increased. Therefore, it can be seen from FIG. 10 that the anchor material 14A mainly contains a tri- or tetrafunctional acrylate monomer in terms of adhesion and dimensional change rate.
- FIG. 11 shows the relationship between the film thickness of the anchor layer 14 and the properties (adhesion, dimensional change rate) of the retardation film 10.
- the dimensional change rate of “ ⁇ ” means that curling to such an extent that it does not become a problem in actual use has occurred.
- “O”, “ ⁇ ”, and “X” in the adhesion column in FIG. 11 are “O”, “ ⁇ ”, and “X” in the adhesion column in FIGS. 3, 4, 8, and 10 described above. It has the same meaning.
- “ ⁇ ” and “X” in the column of the dimensional change rate in FIG. 11 have the same meanings as “ ⁇ ” and “X” in the column of the dimensional change rate in FIG.
- FIG. 11 shows that when the thickness of the anchor layer 14 is 0.5 ⁇ m or more and 7.5 ⁇ m or less, both the adhesion and the dimensional change rate are within the allowable range. Moreover, when the film thickness of the anchor layer 14 is 0.5 ⁇ m or more and 3.5 ⁇ m or less, it can be seen that both the adhesion and the dimensional change rate are extremely excellent.
- the anchor layer 14 provided between the base material 13 and the alignment film 15 is provided with an antistatic function in addition to the basic function of the layer itself. It is possible to prevent large static electricity from being generated in the film during the production process without providing a special layer for preventing static charge in the film or providing a special facility for preventing static charge. As a result, the occurrence of alignment disorder can be reduced by a simple method.
- FIG. 12 perspectively shows an example of the configuration of the retardation film 20 according to the second embodiment of the present invention.
- the retardation film 20 of the present embodiment includes a protective layer 16 on the back surface of the base material 13, and the alignment film 15 and the position on the front surface (main surface) of the base material 13.
- the phase difference layer 12 is provided in order from the base material 13 side.
- the retardation film 20 may include an anchor layer that causes the alignment film 15 to adhere to the base material 13 between the base material 13 and the alignment film 15.
- the anchor layer may be the anchor layer 14 of the first embodiment, or may have only the function of bringing the alignment film 15 into close contact with the base material 13.
- the protective layer 16 is laminated on the back surface of the base material 13 so as to be peelable.
- the protective layer 16 may be detachably fixed to the back surface of the base material 13 by a method other than lamination.
- the protective layer 16 has not only a function of protecting the back surface of the base material 13 from dust and dust but also an antistatic function. That is, the protective layer 16 is also an antistatic layer.
- the surface resistance of the protective layer 16 is 10 13 ⁇ / cm 2 or less, preferably 10 12 ⁇ / cm 2 or less.
- the base material 13 is prepared.
- the alignment film 15 is formed on the base material 13 using, for example, an apparatus similar to the manufacturing apparatus shown in FIG. Thereby, the oriented film 21 is formed.
- the retardation layer 12 is formed on the alignment film 21 using an apparatus similar to the manufacturing apparatus shown in FIG. Thereby, the retardation film 20 is formed.
- the protective layer 16 provided on the back surface of the base material 13 is provided with an antistatic function in addition to the basic function of the layer itself. It is possible to prevent large static electricity from being generated on the film in the manufacturing process without providing it inside or providing special equipment for preventing static charge. As a result, the occurrence of alignment disorder can be reduced by a simple method.
- FIG. 13 illustrates an example of the configuration of the display device 1 according to an application example of the retardation film 10 (or the retardation film 20) of the above embodiment.
- the display device 1 is a polarized glasses type display device that displays a stereoscopic image to an observer (not shown) wearing polarized glasses 2 described below in front of the eyeball.
- the display device 1 is configured by laminating a backlight unit 3, a display panel 4, and a retardation film 10 (or a retardation film 20) in this order.
- the retardation film 10 (or the retardation film 20) is bonded to the surface on the light emission side of the display panel 4.
- the surface of the phase difference film 10 (or the phase difference film 20) is an image display surface and is directed to the viewer side.
- the display device 1 is arranged so that the video display surface is parallel to the vertical surface (vertical surface).
- the video display surface is rectangular, and the longitudinal direction of the video display surface is parallel to the horizontal direction. It is assumed that the observer wears the polarized glasses 2 in front of the eyeball and observes the video display surface.
- the polarized glasses 2 are of a circularly polarized type, and the display device 1 is a display device for circularly polarized glasses.
- the backlight unit 3 includes, for example, a reflector, a light source, and an optical sheet (all not shown).
- the reflection plate returns the light emitted from the light source to the optical sheet side, and has functions such as reflection, scattering, and diffusion.
- This reflector is made of, for example, foamed PET (polyethylene terephthalate). Thereby, the emitted light from the light source can be used efficiently.
- the light source illuminates the display panel 4 from behind.
- a plurality of linear light sources are arranged in parallel at equal intervals, or a plurality of point light sources are two-dimensionally arranged. Examples of the linear light source include a hot cathode fluorescent lamp (HCFL) and a cold cathode fluorescent lamp (CCFL).
- HCFL hot cathode fluorescent lamp
- CCFL cold cathode fluorescent lamp
- the point light source examples include a light emitting diode (LED).
- the optical sheet equalizes the in-plane luminance distribution of light from the light source, or adjusts the divergence angle and polarization state of light from the light source within a desired range.
- a diffusion plate, a diffusion sheet, A prism sheet, a reflective polarizing element, a retardation film, and the like are included.
- the display panel 4 is a transmissive display panel in which a plurality of pixels are two-dimensionally arranged in a row direction and a column direction, and displays an image by driving each pixel according to a video signal.
- the display panel 4 includes a polarizer 41A, a transparent substrate 42, a pixel electrode 43, an alignment film 44, a liquid crystal layer 45, an alignment film 46, and a common electrode in order from the backlight unit 3 side. 47, a color filter 48, a transparent substrate 49, and a polarizer 41B.
- the polarizer 41 ⁇ / b> A is disposed on the light incident side of the display panel 4, and the polarizer 41 ⁇ / b> B is disposed on the light exit side of the display panel 4.
- the polarizers 41A and 41B are a kind of optical shutter, and allow only light (polarized light) having a certain vibration direction to pass therethrough.
- Each of the polarizers 41A and 41B is disposed so that, for example, the polarization axes are different from each other by a predetermined angle (for example, 90 degrees), whereby the light emitted from the backlight unit 3 is transmitted through the liquid crystal layer, Or it is cut off.
- the direction of the transmission axis (not shown) of the polarizer 41A is set within a range where light emitted from the backlight unit 3 can be transmitted.
- the transmission axis of the polarizer 41A is also in the vertical direction.
- the transmission axis of the polarizer 41A is also in the horizontal direction.
- the light emitted from the backlight unit 3 is not limited to linearly polarized light, and may be circularly polarized light, elliptically polarized light, or non-polarized light.
- the direction of the polarization axis (not shown) of the polarizer 41B is set within a range where light transmitted through the display panel 4 can be transmitted.
- the polarization axis of the polarizer 41A is horizontal
- the polarization axis of the polarizer 41B is oriented in a direction (vertical direction) perpendicular thereto
- the orientation of the polarization axis of the polarizer 41A is In the case of the vertical direction
- the polarization axis of the polarizer 41B is directed in a direction (horizontal direction) perpendicular thereto.
- the transparent substrates 42 and 49 are generally substrates that are transparent to visible light.
- the transparent substrate 42 on the backlight unit 3 side is formed with, for example, an active drive circuit including TFTs (Thin Film Transistors) as wiring elements electrically connected to the transparent pixel electrodes and wirings.
- TFTs Thin Film Transistors
- the plurality of pixel electrodes 43 are arranged in a matrix on the surface of the transparent substrate 42, for example.
- the pixel electrode 43 is made of indium tin oxide (ITO), for example, and functions as an electrode for each pixel.
- the alignment film 44 is made of, for example, a polymer material such as polyimide, and performs an alignment process on the liquid crystal.
- the liquid crystal layer 45 is made of, for example, VA (Vertical Alignment) mode liquid crystal.
- the liquid crystal layer 45 has a function of transmitting or blocking light emitted from the backlight unit 3 for each pixel by a voltage applied from a drive circuit (not shown).
- the common electrode 47 is made of, for example, ITO and functions as a common counter electrode.
- the color filter 48 is formed by arranging filter portions 48A for separating light emitted from the backlight unit 3 into, for example, three primary colors of red (R), green (G), and blue (B). Yes.
- the filter portion 48A is provided with a black matrix portion 48B having a light shielding function at a portion corresponding to the boundary between pixels.
- phase difference film 10 changes the polarization state of the light transmitted through the polarizer 41B of the display panel 4.
- the phase difference film 10 (or phase difference film 20) is arrange
- the slow axis of the base material 13 is oriented in the horizontal direction or the vertical direction, for example.
- the retardation layer 12 is a thin layer having optical anisotropy.
- the retardation layer 12 has two types of retardation regions (retardation regions 12A and 12B) having different slow axis directions.
- the phase difference regions 12A and 12B have, for example, a band shape extending in one common direction (horizontal direction). These retardation regions 12A and 12B are regularly arranged adjacent to each other in the in-plane direction of the base material 13, and specifically, alternate in the short direction (vertical direction) of the retardation regions 12A and 12B. Is arranged.
- the phase difference regions 12 ⁇ / b> A and 12 ⁇ / b> B are arranged corresponding to the arrangement of the plurality of pixel electrodes 43.
- the slow axes AX1 and AX2 of the phase difference regions 12A and 12B are directed in a direction intersecting with both the horizontal direction and the vertical direction, and are directed in a direction intersecting with the slow axis of the substrate 13. .
- the slow axes AX1 and AX2 of the phase difference regions 12A and 12B are oriented in a direction that also intersects with the polarization axis of the polarizer 41B of the display panel 4.
- the slow axis AX1 of the phase difference region 12A is in the same direction as the direction of the slow axis of the retardation film 51B for the right eye of the polarizing glasses 2 to be described later, or in the direction corresponding to that direction.
- the slow axis AX2 of the phase difference region 12B is oriented in the same direction as or corresponding to the direction of the slow axis of the retardation film 52B for the left eye of the polarizing glasses 2 described later. It faces in a direction different from the direction of the slow axis of the phase difference film 51B.
- the polarized glasses 2 are worn in front of an eyeball of an observer (not shown), and are used by the observer when observing an image displayed on the image display surface.
- the polarized glasses 2 include, for example, right eye glasses 51 and left eye glasses 52 as shown in FIG.
- the right-eye glasses 51 and the left-eye glasses 52 are arranged so as to face the video display surface of the display device 1.
- the right eyeglasses 51 and the left eyeglasses 52 are preferably arranged in one horizontal plane as much as possible as shown in FIG. 13, but may be arranged in a slightly inclined flat surface.
- the right eyeglasses 51 include, for example, a polarizing plate 51A and a right eye retardation film 51B.
- the left-eye glasses 52 include, for example, a polarizing plate 52A and a left-eye retardation film 52B.
- the right-eye retardation film 51B is the surface of the polarizing plate 51A and provided on the light incident side.
- the left-eye retardation film 52B is the surface of the polarizing plate 52A and provided on the light incident side.
- the polarizing plates 51A and 52A are disposed on the light exit side of the polarizing glasses 2 and allow only light (polarized light) in a certain vibration direction to pass therethrough.
- the polarization axes of the polarizing plates 51A and 52A are oriented in the direction orthogonal to the polarization axis of the polarizer 41B.
- the polarization axes of the polarizing plates 51A and 52A are oriented in the horizontal direction when the polarization axis of the polarizer 41B is oriented in the vertical direction, and the polarization axis of the polarizer 41B is oriented in the horizontal direction. In the vertical direction.
- the right-eye retardation film 51B and the left-eye retardation film 52B are thin layers having optical anisotropy.
- the slow axis of the right-eye retardation film 51B and the slow axis of the left-eye retardation film 52B are oriented in the direction intersecting both the horizontal direction and the vertical direction, and the polarization axes of the polarizing plates 51A and 52A are the same. It faces the crossing direction.
- the polarization axis of the polarizing plate 51A is the same direction as the direction of the slow axis of the phase difference region 12A or the direction corresponding to that direction, and is different from the direction of the slow axis of the phase difference region 12B. Facing the direction.
- the slow axis of the polarizing plate 52A is in the same direction as the slow axis of the phase difference region 12B or the direction corresponding to that direction, and is different from the direction of the slow axis of the phase difference region 12A. Facing.
- a laminate (not shown) including a transparent substrate 42, a pixel electrode 43, an alignment film 44, a liquid crystal layer 45, an alignment film 46, a common electrode 47, a color filter 48, and a transparent substrate 49 is prepared.
- the polarizer 41A is bonded to the back surface (surface on the transparent substrate 42 side) of the laminate, and the polarizer 41B is bonded to the surface (surface on the transparent substrate 49 side) of the stack. In this way, the display panel 4 is completed.
- the retardation film 10 or the retardation film 20
- the backlight unit 3 is attached to the back surface side (polarizer 41A side) of the display panel 4. In this way, the display device 1 is completed.
- the protective film 16 provided on the retardation film 20 is removed as necessary.
- what removed the protective film 16 from the phase difference film 20 shall be called the phase difference film 20 for convenience.
- a parallax signal including a right-eye image and a left-eye image is displayed as a video signal on the display panel. 4 is input. Then, right-eye image light is output from odd-numbered rows of pixels, and left-eye image light is output from even-numbered rows of pixels. Thereafter, the image light for the right eye and the image light for the left eye are converted into elliptically polarized light by the retardation regions 12A and 12B of the retardation film 10 (or the retardation film 20), and then externally from the image display surface of the display device 1. Is output.
- the light L 1 output to the outside of the display device 1 is incident on the polarizing glasses 2 and returned from elliptically polarized light to linearly polarized light by the right-eye retardation film 51B and the left-eye retardation film 52B, and then polarized glasses. 2 is incident on the polarizing plates 51A and 52A.
- the polarization axis of the light corresponding to the right-eye image light out of the incident light to the polarizing plates 51A and 52A is parallel to the polarizing axis of the polarizing plate 51A and orthogonal to the polarizing axis of the polarizing plate 52A. Yes.
- the light corresponding to the right-eye image light among the incident light to the polarizing plates 51A and 52A is transmitted only through the polarizing plate 51A and reaches the right eye of the observer.
- the polarization axis of the light corresponding to the image light for the left eye among the incident light to the polarizing plates 51A and 52A is orthogonal to the polarizing axis of the polarizing plate 51A and is parallel to the polarizing axis of the polarizing plate 52A.
- the light corresponding to the image light for the left eye among the incident light to the polarizing plates 51A and 52A is transmitted only through the polarizing plate 52A and reaches the left eye of the observer.
- the observer can display the video display surface of the display device 1. Can be recognized as if a stereoscopic image is displayed.
- the non-oriented thin film relieves the influence of the molecular orientation of the surface of the alignment film 15 (particularly, the surfaces of the fine grooves V1 and V2) on the retardation layer 12 as a base.
- the non-oriented thin film is made of, for example, a UV curable resin.
- the UV curable resin include a UV curable acrylic resin.
- the non-oriented thin film is formed by curing a UV curable acrylic resin, the uncured UV curable acrylic resin that is the raw material of the non-oriented thin film has a functional group of three or more functions. Preferably there is.
- the non-oriented thin film is produced by a method that does not cause the orientation of molecules, such as coating or sputtering.
- the non-oriented thin film is formed following the surfaces of the plurality of fine grooves V1 and V2, and has a substantially uniform thickness.
- the thickness of the non-oriented thin film is preferably 20 nm or more from the viewpoint of eliminating the influence of the underlying molecular orientation.
- the upper limit of the thickness of the non-oriented thin film is preferably set to such a thickness that the upper surface of the non-oriented thin film is not flat.
- the retardation film 10 (or the retardation film 20) is provided on the image display surface side of the display device 1.
- the retardation film 10 (or the retardation film 20) may be provided in other locations.
- the retardation film 10 (or the retardation film 20) may be provided between the polarizer 41A and the transparent substrate 42.
- the display device 1 according to this modification can be manufactured as follows. First, a laminate (not shown) including a transparent substrate 42, a pixel electrode 43, an alignment film 44, a liquid crystal layer 45, an alignment film 46, a common electrode 47, a color filter 48, and a transparent substrate 49 is prepared.
- the polarizer 41A is placed on the retardation film 10 (or the retardation film 20). Paste together.
- the polarizer 41B is bonded to the surface of the above laminate (the surface on the transparent substrate 49 side). In this way, the display panel 4 including the retardation film 10 (or the retardation film 20) is completed.
- the backlight unit 3 is attached to the rear surface side (polarizer 41 ⁇ / b> A side) of the display panel 4. In this way, the display device 1 according to this modification is completed.
- the display device 1 when the light emitted from the backlight unit 3 is incident on the polarizer 41A, only the horizontal polarization component is transmitted, and the retardation film 10 (or the retardation film 20). Is incident on.
- the light transmitted through the retardation film 10 (or the retardation film 20) is sequentially transmitted through the laminate and the polarizer 41B, and is emitted as a polarization component in the vertical direction.
- the phase difference film 10 (or the phase difference film 20) is arranged, so that the phase difference of the liquid crystal when viewed from the oblique direction is compensated, and the light leakage and coloring in the oblique direction during black display are reduced. can do. That is, the retardation film 10 (or retardation film 20) can be used as a viewing angle compensation film such as an A plate or a C plate.
- region 12A, 12B of the phase difference film 10 (or phase difference film 20) was extended in the horizontal direction was illustrated, it has extended in the other direction. It doesn't matter.
- region 12A, 12B of retardation film 10 covers the horizontal direction or the whole vertical direction of retardation film 10 (or retardation film 20).
- region 12A, 12B of retardation film 10 covers the horizontal direction or the whole vertical direction of retardation film 10 (or retardation film 20).
- it extended is illustrated, for example, it may be two-dimensionally arranged in both the horizontal direction and the vertical direction.
- the polarized glasses 2 are of the circularly polarized type and the display device 1 is a display device for circularly polarized glasses has been described.
- the polarized glasses 2 are of the linearly polarized type, and the display device.
- the present invention can also be applied to the case of 1 as a display device for linearly polarized glasses.
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Abstract
Description
(A1)ロールによって移動可能に支持された基材上に、1013Ω/cm2以下の表面抵抗を有するアンカー層を形成したのち、アンカー層上に、硬化未完了のエネルギー硬化樹脂層を形成する第1工程
(A2)エネルギー硬化樹脂層に、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有する型を押し当て、その状態で前記エネルギー硬化樹脂層を硬化させることにより、エネルギー硬化樹脂層の表面に型の反転パターンを転写する第2工程
(B1)ロールによって移動可能に支持された基材上に、1013Ω/cm2以下の表面抵抗を有するアンカー層を形成したのち、アンカー層上に、硬化未完了のエネルギー硬化樹脂層を形成する第1工程
(B2)エネルギー硬化樹脂層に、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有する型を押し当て、その状態で前記エネルギー硬化樹脂層を硬化させることにより、エネルギー硬化樹脂層の表面に型の反転パターンが転写された配向膜を形成する第2工程
(B3)配向膜の表面に、当該配向膜の表面の凹凸に対応して配向する配向性材料を含む層を形成することにより位相差層を形成する第3工程
(C1)ロールによって移動可能に支持されるとともに、1013Ω/cm2以下の表面抵抗を有する保護層が前記ロール側の面にラミネートされた基材の主面の上に、硬化未完了のエネルギー硬化樹脂層を形成する第1工程
(C2)エネルギー硬化樹脂層に、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有する型を押し当て、その状態でエネルギー硬化樹脂層を硬化させることにより、エネルギー硬化樹脂層の表面に型の反転パターンを転写する第2工程
(D1)ロールによって移動可能に支持されるとともに、1013Ω/cm2以下の表面抵抗を有する保護層がロール側の面にラミネートされた基材の主面の上に、硬化未完了のエネルギー硬化樹脂層を形成する第1工程
(D2)エネルギー硬化樹脂層に、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有する型を押し当て、その状態で前記エネルギー硬化樹脂層を硬化させることにより、エネルギー硬化樹脂層の表面に型の反転パターンを転写することにより配向膜を形成する第2工程
(D3)配向膜の表面に、当該配向膜の表面の凹凸に対応して配向する配向性材料を含む層を形成することにより位相差層を形成する第3工程
1.第1の実施の形態
帯電防止機能を有するアンカー層が設けられている例
2.第2の実施の形態
帯電防止機能を有する保護層が設けられている例
3.適用例
位相差フィルムを3Dディスプレイに適用した例
4.変形例
[構成]
図1は、本発明の第1の実施の形態に係る位相差フィルム10の構成の一例を斜視的に表すものである。本実施の形態の位相差フィルム10は、例えば、図1に示したように、配向フィルム11上に位相差層12を設けたものである。配向フィルム11は、例えば、基材13上に、アンカー層14および配向膜15を基材13側からこの順に積層して構成されたものである。
次に、本実施の形態の位相差フィルム10の製造方法の一例について説明する。
次に、本実施の形態の位相差フィルム10の効果について説明する。
[構成]
図12は、本発明の第2の実施の形態に係る位相差フィルム20の構成の一例を斜視的に表すものである。本実施の形態の位相差フィルム20は、例えば、図12に示したように、基材13の裏面に保護層16を備え、基材13の表側の面(主面)に配向膜15および位相差層12を基材13側から順に備えたものである。なお、位相差フィルム20は、基材13と配向膜15との間に、配向膜15を基材13に密着させるアンカー層を備えていてもよい。なお、このアンカー層は、上記第1の実施の形態のアンカー層14であってもよいし、配向膜15を基材13に密着させる機能だけを持ったものであってもよい。
次に、本実施の形態の位相差フィルム20の製造方法の一例について説明する。まず、基材13を用意する。続いて、例えば、図6に示した製造装置と同様の装置を用いて、基材13上に配向膜15を形成する。これにより、配向フィルム21が形成される。次に、例えば、図7に示した製造装置と同様の装置を用いて、配向フィルム21上に位相差層12を形成する。これにより、位相差フィルム20が形成される。
本実施の形態では、基材13の裏面に設けられた保護層16に、その層自体の基本機能の他に帯電防止機能を付与するようにしたので、帯電防止のための特別な層をフィルム内に設けたり、帯電防止のための特別な設備を設けたりすることなく、製造過程のフィルムに大きな静電気が発生するのを防止することができる。その結果、簡易な方法で配向乱れの発生を低減することができる。
図13は、上記実施の形態の位相差フィルム10(または位相差フィルム20)の一適用例に係る表示装置1の構成の一例を表すものである。表示装置1は、後述する偏光眼鏡2を眼球の前に装着した観察者(図示せず)に対して立体映像を表示する偏光眼鏡方式の表示装置である。この表示装置1は、バックライトユニット3、表示パネル4および位相差フィルム10(または位相差フィルム20)をこの順に積層して構成されたものである。この表示装置1において、位相差フィルム10(または位相差フィルム20)は表示パネル4の光射出側の面に貼り合わされている。位相差フィルム10(または位相差フィルム20)の表面が映像表示面となっており、観察者側に向けられている。
バックライトユニット3は、例えば、反射板、光源および光学シート(いずれも図示せず)を有している。反射板は、光源からの射出光を光学シート側に戻すものであり、反射、散乱、拡散などの機能を有している。この反射板は、例えば、発泡PET(ポリエチレンテレフタレート)などによって構成されている。これにより、光源からの射出光を効率的に利用することができる。光源は、表示パネル4を背後から照明するものであり、例えば、複数の線状光源が等間隔で並列配置されたり、複数の点状光源が2次元配列されたりしたものである。なお、線状光源としては、例えば、熱陰極管(HCFL;Hot Cathode Fluorescent Lamp)、冷陰極管(CCFL;Cold Cathode Fluorescent Lamp)などが挙げられる。また、点状光源としては、例えば、発光ダイオード(LED;Light Emitting Diode)などが挙げられる。光学シートは、光源からの光の面内輝度分布を均一化したり、光源からの光の発散角や偏光状態を所望の範囲内に調整したりするものであり、例えば、拡散板、拡散シート、プリズムシート、反射型偏光素子、位相差フィルムなどを含んで構成されている。
表示パネル4は、複数の画素が行方向および列方向に2次元配列された透過型の表示パネルであり、映像信号に応じて各画素を駆動することによって画像を表示するものである。この表示パネル4は、例えば、図13に示したように、バックライトユニット3側から順に、偏光子41A、透明基板42、画素電極43、配向膜44、液晶層45、配向膜46、共通電極47、カラーフィルタ48、透明基板49および偏光子41Bを有している。
次に、位相差フィルム10(または位相差フィルム20)について説明する。位相差フィルム10(または位相差フィルム20)は、表示パネル4の偏光子41Bを透過した光の偏光状態を変化させるものである。位相差フィルム10(または位相差フィルム20)は、例えば、光射出側に基材13が向くように、配置されている。
次に、偏光眼鏡2について説明する。偏光眼鏡2は、観察者(図示せず)の眼球の前に装着されるものであり、映像表示面に映し出される映像を観察する際に観察者によって用いられるものである。この偏光眼鏡2は、例えば、図13に示したように、右目用眼鏡51および左目用眼鏡52を有している。
次いで、表示装置1の製造方法の一例について説明する。まず、透明基板42、画素電極43、配向膜44、液晶層45、配向膜46、共通電極47、カラーフィルタ48および透明基板49をこの順に含む積層体(図示せず)を用意する。次に、この積層体の裏面(透明基板42側の面)に偏光子41Aを貼り合わせるとともに、この積層体の表面(透明基板49側の面)に偏光子41Bを貼り合わせる。このようにして、表示パネル4が完成する。次に、偏光子41B上に、位相差フィルム10(または位相差フィルム20)を貼り合わせたのち、表示パネル4の裏面側(偏光子41A側)にバックライトユニット3を取り付ける。このようにして、表示装置1が完成する。
本適用例に係る表示装置1では、まず、バックライトユニット3から照射された光が表示パネル4に入射している状態で、映像信号として右目用画像および左目用画像を含む視差信号が表示パネル4に入力される。すると、奇数行の画素から右目用画像光が出力され、偶数行の画素から左目用画像光が出力される。その後、右目用画像光および左目用画像光は、位相差フィルム10(または位相差フィルム20)の位相差領域12A,12Bによって楕円偏光に変換されたのち、表示装置1の画像表示面から外部に出力される。
ところで、本適用例では、表示装置1に位相差フィルム10が用いられている場合に、その位相差フィルム10において、基材13と配向膜15との間に設けられたアンカー層14に、その層自体の基本機能の他に帯電防止機能が付与されている。また、表示装置1に位相差フィルム20が用いられている場合に、その位相差フィルム20において、基材13の裏面に設けられた保護膜16に、その層自体の基本機能の他に帯電防止機能が付与されている。これにより、帯電防止のための特別な層をフィルム内に設けたり、帯電防止のための特別な設備を設けたりすることなく、製造過程のフィルムに大きな静電気が発生するのを防止することができる。その結果、簡易な方法で配向乱れの発生を低減することができるので、映像表示面にスジやムラが生じるのを低減することができる。
[第1の変形例]
上記実施の形態では、位相差層12が配向膜15に直接接している場合が例示されていたが、位相差層12と配向膜15との間に、何らかの層が設けられていてもよい。例えば、位相差層12と配向膜15との間に、配向膜15の凹凸に倣った形状を有する無配向性薄膜(図示せず)が設けられていてもよい。上記の無配向性薄膜とは、無配向性薄膜の表面に位置する多数の分子が配向性を有していない、つまりランダムな方向を向いている薄膜を指している。無配向性薄膜は、下地である配向膜15の表面(特に微細溝V1,V2の表面)の分子配向の、位相差層12への影響を緩和するものである。無配向性薄膜は、例えばUV硬化樹脂からなる。UV硬化樹脂としては、例えば、UV硬化アクリル樹脂が挙げられる。無配向性薄膜がUV硬化アクリル樹脂を硬化させることにより形成されたものである場合に、無配向性薄膜の原料である未硬化のUV硬化アクリル樹脂は、3官能以上の官能基を有するものであることが好ましい。無配向性薄膜は、例えば、塗布やスパッタなどの、分子に配向性が生じないような方法によって作成されている。無配向性薄膜は、複数の微細溝V1,V2の表面に倣って形成されており、おおむね均一な厚さとなっている。無配向性薄膜の厚さは、下地の分子配向の影響をなくする観点からは、20nm以上となっていることが好ましい。無配向性薄膜の厚さの上限は、無配向性薄膜の上面が平坦とならない程度の厚さとなっていることが好ましい。
上記適用例では、位相差フィルム10(または位相差フィルム20)が表示装置1の画像表示面側に設けられていたが、それ以外の箇所に設けられていてもよい。例えば、図示しないが、位相差フィルム10(または位相差フィルム20)が、偏光子41Aと透明基板42との間に設けられていてもよい。本変形例に係る表示装置1は、以下のようにして製造することが可能である。まず、透明基板42、画素電極43、配向膜44、液晶層45、配向膜46、共通電極47、カラーフィルタ48および透明基板49をこの順に含む積層体(図示せず)を用意する。次に、この積層体の裏面(透明基板42側の面)に位相差フィルム10(または位相差フィルム20)を貼り合わせたのち、位相差フィルム10(または位相差フィルム20)上に偏光子41Aを貼り合わせる。次に、上記の積層体の表面(透明基板49側の面)に偏光子41Bを貼り合わせる。このようにして、位相差フィルム10(または位相差フィルム20)を含む表示パネル4が完成する。その後、表示パネル4の裏面側(偏光子41A側)にバックライトユニット3を取り付ける。このようにして、本変形例に係る表示装置1が完成する。
上記実施の形態では、位相差フィルム10(または位相差フィルム20)の位相差領域12A,12Bが水平方向に延在している場合が例示されていたが、それ以外の方向に延在していてもかまわない。
上記実施の形態およびその変形例では、位相差フィルム10(または位相差フィルム20)の位相差領域12A,12Bが位相差フィルム10(または位相差フィルム20)の水平方向もしくは垂直方向全体に渡って延在している場合が例示されていたが、例えば、水平方向および垂直方向の双方に2次元配置されていてもよい。
上記実施の形態およびその変形例では、位相差フィルム10(または位相差フィルム20)を表示装置1に適用した場合が例示されていたが、他のデバイスに適用することももちろん可能である。
以上では、偏光眼鏡2が円偏光タイプであり、表示装置1としては円偏光眼鏡用の表示装置である場合について説明をしたが、本発明は、偏光眼鏡2が直線偏光タイプであり、表示装置1として直線偏光眼鏡用の表示装置である場合についても適用可能である。
Claims (15)
- 基材上にアンカー層および配向膜をこの順に積層してなり、
前記配向膜は、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有し、
前記アンカー層は、前記基材および前記配向膜に接しており、かつ、1013Ω/cm2以下の表面抵抗を有する
配向フィルム。 - 前記基材は、熱可塑性ノルボルネン系樹脂フィルムであり、
前記アンカー層は、50重量部以上90重量部以下の3官能以上のアクリレートモノマーと、導電性材料と、前記導電性材料を分散させる溶剤とを含むアンカー材を前記基材上に塗布したのち、乾燥し、硬化させることにより形成されたものである
請求項1に記載の配向フィルム。 - 前記導電性材料は、導電性ポリマー、またはイオン性液体である
請求項2に記載の配向フィルム。 - 前記溶剤は、酢酸ブチルとイソプロピルアルコールとを含む
請求項2または請求項3に記載の配向フィルム。 - 前記アンカー層は、前記アンカー材として、前記アクリレートモノマーと、エステル系の樹脂と、ウレタン系の樹脂と、前記導電性材料と、前記溶剤とを含むものを前記基材上に塗布したのち、乾燥し、硬化させることにより形成されたものである
請求項2または請求項3に記載の配向フィルム。 - 前記アンカー層は、1011Ω/cm2以上1012Ω/cm2以下の表面抵抗を有している
請求項2または請求項3に記載の配向フィルム。 - 裏面に帯電防止層がラミネートされた基材の主面の上に配向膜を備え、
前記配向膜は、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有し、
前記帯電防止層は、1013Ω/cm2以下の表面抵抗を有する
配向フィルム。 - 基材上にアンカー層、配向膜および位相差層をこの順に積層してなり、
前記配向膜は、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有し、
前記アンカー層は、前記基材および前記配向膜に接しており、かつ、1013Ω/cm2以下の表面抵抗を有する
位相差フィルム。 - 裏面に帯電防止層がラミネートされた基材の主面の上に、配向膜および位相差層をこの順に積層してなり、
前記配向膜は、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有し、
前記帯電防止層は、1013Ω/cm2以下の表面抵抗を有する
位相差フィルム。 - 光源と、
前記光源からの光に基づいて表示を行う表示セルと、
前記表示セルの光源側に設けられた第1偏光子と、
前記表示セルの表示側に設けられた第2偏光子と、
前記第1偏光子および前記第2偏光子のうち、少なくとも一の偏光子の光出射側に配置された位相差フィルムと
を備え、
前記位相差フィルムは、
裏面に帯電防止層がラミネートされた基材の主面の上に配向膜を有し、
前記配向膜は、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有し、
前記帯電防止層は、1013Ω/cm2以下の表面抵抗を有する
表示装置。 - 光源と、
前記光源からの光に基づいて表示を行う表示セルと、
前記表示セルの光源側に設けられた第1偏光子と、
前記表示セルの表示側に設けられた第2偏光子と、
前記第1偏光子および前記第2偏光子のうち、少なくとも一の偏光子の光出射側に配置された位相差フィルムと
を備え、
前記位相差フィルムは、
裏面に帯電防止層がラミネートされた基材の主面の上に、配向膜および位相差層をこの順に積層してなり、
前記配向膜は、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有し、
前記帯電防止層は、1013Ω/cm2以下の表面抵抗を有する
表示装置。 - 基材上に、1013Ω/cm2以下の表面抵抗を有するアンカー層を形成したのち、前記アンカー層上に、硬化未完了のエネルギー硬化樹脂層を形成する第1工程と、
前記エネルギー硬化樹脂層に、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有する型を押し当て、その状態で前記エネルギー硬化樹脂層を硬化させることにより、前記エネルギー硬化樹脂層の表面に前記型の反転パターンを転写する第2工程と
を含む
配向フィルムの製造方法。 - 1013Ω/cm2以下の表面抵抗を有する帯電防止層が前記ロール側の面にラミネートされた基材の主面の上に、硬化未完了のエネルギー硬化樹脂層を形成する第1工程と、
前記エネルギー硬化樹脂層に、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有する型を押し当て、その状態で前記エネルギー硬化樹脂層を硬化させることにより、前記エネルギー硬化樹脂層の表面に前記型の反転パターンを転写する第2工程と
を含む
配向フィルムの製造方法。 - 基材上に、1013Ω/cm2以下の表面抵抗を有するアンカー層を形成したのち、前記アンカー層上に、硬化未完了のエネルギー硬化樹脂層を形成する第1工程と、
前記エネルギー硬化樹脂層に、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有する型を押し当て、その状態で前記エネルギー硬化樹脂層を硬化させることにより、前記エネルギー硬化樹脂層の表面に前記型の反転パターンを転写することにより配向膜を形成する第2工程と、
前記配向膜の表面に、当該配向膜の表面の凹凸に対応して配向する配向性材料を含む層を形成することにより位相差層を形成する第3工程と
を含む
位相差フィルムの製造方法。 - 1013Ω/cm2以下の表面抵抗を有する帯電防止層が前記ロール側の面にラミネートされた基材の主面の上に、硬化未完了のエネルギー硬化樹脂層を形成する第1工程と、
前記エネルギー硬化樹脂層に、特定の方向に延在する複数のナノオーダスケールの微細溝を表面に有する型を押し当て、その状態で前記エネルギー硬化樹脂層を硬化させることにより、前記エネルギー硬化樹脂層の表面に前記型の反転パターンを転写することにより配向膜を形成する第2工程と、
前記配向膜の表面に、当該配向膜の表面の凹凸に対応して配向する配向性材料を含む層を形成することにより位相差層を形成する第3工程と
を含む
位相差フィルムの製造方法。
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JP2012530632A JP5915530B2 (ja) | 2010-08-27 | 2011-08-17 | 配向フィルムおよびその製造方法、位相差フィルムおよびその製造方法、ならびに表示装置 |
KR1020137003954A KR101834586B1 (ko) | 2010-08-27 | 2011-08-17 | 배향 필름 및 그 제조 방법, 위상차 필름 및 그 제조 방법, 및 표시 장치 |
CN201180040428.3A CN103080789B (zh) | 2010-08-27 | 2011-08-17 | 配向膜及其制造方法、延迟膜及其制造方法以及显示器 |
US13/818,536 US9921347B2 (en) | 2010-08-27 | 2011-08-17 | Alignment film, method of manufacturing the alignment film, retardation film, method of manufacturing the retardation film, and display |
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JP2018155795A (ja) * | 2017-03-15 | 2018-10-04 | Jxtgエネルギー株式会社 | 光学位相差部材、偏光変換素子、テンプレート及び光学位相差部材の製造方法 |
KR102651368B1 (ko) | 2017-03-28 | 2024-03-26 | 닛토덴코 가부시키가이샤 | 인셀형 액정 패널용 점착제층을 구비한 편광 필름 |
KR102165042B1 (ko) | 2017-03-28 | 2020-10-13 | 닛토덴코 가부시키가이샤 | 인셀형 액정 패널 및 액정 표시 장치 |
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CN209148998U (zh) * | 2019-01-21 | 2019-07-23 | 京东方科技集团股份有限公司 | 显示面板及显示系统 |
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JPH09230334A (ja) * | 1996-02-27 | 1997-09-05 | Fuji Photo Film Co Ltd | 液晶表示素子 |
JPH11212078A (ja) * | 1998-01-22 | 1999-08-06 | Fuji Photo Film Co Ltd | 液晶表示装置 |
WO2010032540A1 (ja) * | 2008-09-22 | 2010-03-25 | ソニー株式会社 | 位相差板およびその製造方法並びに表示装置 |
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JP2002122741A (ja) * | 2000-08-01 | 2002-04-26 | Konica Corp | 光学補償シート、偏光板及び液晶表示装置 |
JP3902186B2 (ja) * | 2003-04-21 | 2007-04-04 | 日東電工株式会社 | 帯電防止型光学フィルム、その製造方法、及び画像表示装置 |
JP2005017574A (ja) * | 2003-06-25 | 2005-01-20 | Fuji Photo Film Co Ltd | 光学補償シート、偏光板および液晶表示装置 |
US7327422B2 (en) * | 2004-03-09 | 2008-02-05 | Nitto Denko Corporation | Optical compensation film, display, and process |
US7087351B2 (en) | 2004-09-29 | 2006-08-08 | Eastman Kodak Company | Antistatic layer for electrically modulated display |
TWI416158B (zh) * | 2006-03-31 | 2013-11-21 | Dainippon Printing Co Ltd | Optical laminated body and optical laminate |
JP4923754B2 (ja) | 2006-03-31 | 2012-04-25 | 大日本印刷株式会社 | 光学積層体 |
JP5157350B2 (ja) * | 2007-09-28 | 2013-03-06 | Tdk株式会社 | 積層フィルムおよび積層セラミック電子部品の製造方法 |
KR20110082138A (ko) | 2008-11-07 | 2011-07-18 | 테이진 카세이 가부시키가이샤 | 위상차 필름 |
JP2010139823A (ja) | 2008-12-12 | 2010-06-24 | Konica Minolta Opto Inc | 光学補償フィルム、偏光板、液晶表示装置、ips(インプレーンスイッチング)モード型液晶表示装置 |
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JPH09230334A (ja) * | 1996-02-27 | 1997-09-05 | Fuji Photo Film Co Ltd | 液晶表示素子 |
JPH11212078A (ja) * | 1998-01-22 | 1999-08-06 | Fuji Photo Film Co Ltd | 液晶表示装置 |
WO2010032540A1 (ja) * | 2008-09-22 | 2010-03-25 | ソニー株式会社 | 位相差板およびその製造方法並びに表示装置 |
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US9921347B2 (en) | 2018-03-20 |
JP5915530B2 (ja) | 2016-05-11 |
KR101834586B1 (ko) | 2018-03-05 |
TW201219933A (en) | 2012-05-16 |
KR20140006763A (ko) | 2014-01-16 |
TWI472812B (zh) | 2015-02-11 |
JPWO2012026371A1 (ja) | 2013-10-28 |
CN103080789A (zh) | 2013-05-01 |
US20130335942A1 (en) | 2013-12-19 |
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