WO2012090785A1 - 立体画像表示装置用複屈折レンズ材料、及び、立体画像表示装置用複屈折レンズの製造方法 - Google Patents

立体画像表示装置用複屈折レンズ材料、及び、立体画像表示装置用複屈折レンズの製造方法 Download PDF

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Publication number
WO2012090785A1
WO2012090785A1 PCT/JP2011/079488 JP2011079488W WO2012090785A1 WO 2012090785 A1 WO2012090785 A1 WO 2012090785A1 JP 2011079488 W JP2011079488 W JP 2011079488W WO 2012090785 A1 WO2012090785 A1 WO 2012090785A1
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WIPO (PCT)
Prior art keywords
group
image display
stereoscopic image
birefringent lens
lens material
Prior art date
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Ceased
Application number
PCT/JP2011/079488
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English (en)
French (fr)
Japanese (ja)
Inventor
桑名　康弘
長谷部　浩史
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIC Corp
Original Assignee
DIC Corp
Dainippon Ink and Chemicals Co Ltd
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Filing date
Publication date
Application filed by DIC Corp, Dainippon Ink and Chemicals Co Ltd filed Critical DIC Corp
Priority to KR1020137015707A priority Critical patent/KR101952697B1/ko
Priority to US13/976,874 priority patent/US9927625B2/en
Priority to EP11852367.9A priority patent/EP2660631B1/en
Priority to JP2012548159A priority patent/JP5553184B2/ja
Priority to CN201180062991.0A priority patent/CN103282800B/zh
Publication of WO2012090785A1 publication Critical patent/WO2012090785A1/ja
Anticipated expiration legal-status Critical
Priority to US14/513,701 priority patent/US9599829B2/en
Ceased legal-status Critical Current

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    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
    • G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B05D3/06—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 exposure to radiation
    • B05D3/061—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 exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • B29C39/006—Monomers or prepolymers
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
    • B32B37/182—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only one or more of the layers being plastic
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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
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • 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
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/0403—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit the structure containing one or more specific, optionally substituted ring or ring systems
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    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
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    • G02B3/06—Simple or compound lenses with non-spherical faces with cylindrical or toric faces
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    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/20—Exposure; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2035/00—Use of polymers of unsaturated polycarboxylic acids or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
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    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
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    • B32B2307/40—Properties of the layers or laminate having particular optical properties
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    • C—CHEMISTRY; METALLURGY
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    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/0403—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit the structure containing one or more specific, optionally substituted ring or ring systems
    • C09K2019/0407—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit the structure containing one or more specific, optionally substituted ring or ring systems containing a carbocyclic ring, e.g. dicyano-benzene, chlorofluoro-benzene or cyclohexanone
    • 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
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Definitions

  • the present invention relates to a birefringent lens material used for stereoscopic image display and a method for manufacturing a birefringent lens for stereoscopic image display.
  • 3D image display gives a sense of depth by sending individual almost flat images to the human right and left eyes, fusing them in the brain, and allowing them to be recognized three-dimensionally. For this reason, images for generating parallax must be individually formed and corrected when images are sent to each eye, or flat images must be separated for right eye recognition and left eye recognition.
  • the method of separating a flat image does not require the use of polarizing glasses for image correction and can recognize a stereoscopic image with the naked eye.
  • a method for separating a flat image there are a method using a lenticular lens, a parallax barrier method, and the like.
  • the lenticular lens is a lens that separates two images by determining a width that allows one eye to recognize the same image by refraction by the lens, and a semi-cylindrical birefringent lens is used to generate parallax.
  • a characteristic required for lenticular lenses is that the temperature change of the refractive index is small for use in a wide range of environments, and in order to meet this requirement, a cured liquid crystal polymer is used as a birefringent lens material. Techniques have been proposed (see Patent Document 1 and Non-Patent Document 1).
  • Non-patent Document 1 Non-patent Document 1
  • the problem to be solved by the present invention is to provide a birefringent lens material used for stereoscopic image display and a birefringent lens for stereoscopic image display, which are excellent in optical characteristics, durability, productivity, and particularly productivity.
  • Another object of the present invention is to provide a method for producing a birefringent lens for stereoscopic image display having excellent productivity.
  • the inventors of the present invention have intensively studied various liquid crystal monomers used for birefringent lenses, and as a result, can change the birefringence characteristics of the materials by using birefringent lens materials with increased types of specific liquid crystal monomers. In addition, the inventors have found that sufficient durability can be obtained and that curing at room temperature is possible, and the present invention has been completed.
  • a birefringent lens material for stereoscopic image display comprising two or more liquid crystal compounds having at least one polymerizable functional group, and a stereoscopic image display formed by curing the lens material Birefringence for stereoscopic image display, characterized in that a birefringent lens is provided, and the lens material is applied onto an alignment film that is aligned in a uniaxial direction, cured with ultraviolet rays, and molded into a lens shape.
  • a method for manufacturing a lens is provided.
  • the birefringent lens material for stereoscopic image display and the birefringent lens for stereoscopic image display using the lens material of the present invention have excellent optical characteristics and durability by increasing the types of specific liquid crystal monomers, and are produced. Excellent in properties.
  • the method for producing a birefringent lens material for stereoscopic image display using the material can suppress the occurrence of alignment defects in the liquid crystal monomer, and is excellent in productivity.
  • the stereoscopic image display birefringent lens material of the present invention contains two or more liquid crystal compounds having at least one polymerizable functional group.
  • the liquid crystal compound having one or more polymerizable functional groups preferably contains two or more liquid crystal compounds having at least two polymerizable functional groups from the viewpoint of durability.
  • the liquid crystal compound having at least two polymerizable functional groups is preferably contained in an amount of 10% to 95% by weight, and more preferably 15% to 90% by weight.
  • the liquid crystal compounds having a polymerizable functional group are preferably the same mesogenic group or mesogenic supporting group.
  • the liquid crystal compound having a polymerizable functional group is represented by the general formula (1)
  • P represents a polymerizable functional group
  • Sp represents a spacer group having 0 to 18 carbon atoms
  • m represents 0 or 1
  • MG represents a mesogenic group or a mesogenic supporting group
  • R 1 represents ,
  • a halogen atom, a cyano group, a thiocyanato group, a hydroxy group, an NCO group, an OCN group or an alkyl group having 1 to 18 carbon atoms, wherein the alkyl group is represented by one or more halogen atoms, a cyano group, or a hydroxy group may be substituted, independently each two or more CH 2 groups not one CH 2 group or adjacent present in this group to each other, in a manner that oxygen atoms are not directly bonded to each other, - O—, —S—, —NH—, —N (CH 3 ) —, —CO—, —COO—, —OCO—, —OCOO—, —SCO—, —
  • P represents a reactive functional group
  • Sp represents a spacer group having 0 to 18 carbon atoms
  • m represents 0 or 1
  • P represents a reactive functional group
  • Sp represents a spacer group having 0 to 18 carbon atoms
  • m represents 0 or 1
  • the birefringent lens material for stereoscopic image display of the present invention has a transition temperature from a solid phase to a liquid crystal phase of ⁇ 10 ° C. or lower and a transition temperature from a liquid crystal phase to a liquid phase of 50 ° C. or higher.
  • the transition temperature from the solid phase to the liquid crystal phase is 0 ° C. or lower, and the transition temperature from the liquid crystal phase to the liquid phase is preferably 40 ° C. or higher.
  • the birefringent lens material for stereoscopic image display of the present invention is preferably one that can be polymerized at room temperature of 20 ° C. to 30 ° C.
  • the liquid crystal compound having one polymerizable functional group exhibits liquid crystallinity alone or in a composition with another liquid crystal compound.
  • the compound is not particularly limited as long as it is a compound having one polymerizable functional group, and a known and commonly used compound can be used.
  • a rod-like polymerizable liquid crystal compound having a polymerizable functional group such as a vinyl group, an acrylic group or a (meth) acryl group, or a maleimide as described in JP-A Nos. 2004-2373 and 2004-99446
  • a rod-like polymerizable liquid crystal compound having a group examples thereof include a rod-like polymerizable liquid crystal compound having a group.
  • a rod-like liquid crystal compound having a polymerizable group is preferable because it can easily produce a liquid crystal having a temperature range around room temperature.
  • P represents a polymerizable functional group
  • Sp represents a spacer group having 0 to 18 carbon atoms
  • m represents 0 or 1
  • MG represents a mesogenic group or a mesogenic supporting group
  • R 1 represents ,
  • a halogen atom, a cyano group, a thiocyanato group, a hydroxy group, an NCO group, an OCN group or an alkyl group having 1 to 18 carbon atoms, wherein the alkyl group is represented by one or more halogen atoms, a cyano group, or a hydroxy group may be substituted, independently each two or more CH 2 groups not one CH 2 group or adjacent present in this group to each other, in a manner that oxygen atoms are not directly bonded to each other, - O—, —S—, —NH—, —N (CH 3 ) —, —CO—, —COO—, —OCO—, —OCOO—, —SCO—, —
  • each polymerizable functional group may have a substituent such as a halogen atom, a methyl group, a trifluoromethyl group,
  • the mesogenic group or mesogenic support group of the compound represented by the general formula (1) is composed of a ring structure and a group linking the ring structure.
  • the general formula (1-1) is composed of a ring structure and a group linking the ring structure.
  • MG 1 and MG 2 each independently represent one or more ring structures
  • Sp 1 , Sp 2 and Sp 3 each independently represents a single bond or a divalent organic group
  • n is 1
  • one ring structure can be a mesogenic group or mesogenic group, it represents 0 to 5.
  • two or more ring structures can be a mesogenic group or mesogenic group, it represents 1 to 6.
  • MG 1 and MG 2 having at least one ring structure are as follows:
  • Sp represents a single bond or an alkylene group (the alkylene group may be substituted with one or more halogen atoms or CN, and is present in this group).
  • A1, A2, and A3 are each independently 1,4-phenylene group, 1,4-cyclohexylene group, 1,4-cyclohexenyl group, tetrahydropyran-2,5-diyl group, 1, 3-dioxane-2,5-diyl group, tetrahydrothiopyran-2,5-diyl group, 1,4-bicyclo (2,2,2) octylene group, decahydronaphthalene-2,6-diyl group, pyridine- 2,5-diyl group, pyrimidine-2,5-diyl group, pyrazine-2,5-diyl group, thiophene-2,5-diyl group-, 1,2,3,4-tetrahydronaphthalene-2,6- Diyl group, 1,4-naphthylene group, 1,5-naphthylene group, 1,6-naphthylene group, 2,
  • Polymerizable functional groups are represented by the general formulas (P-1) to (P-18)
  • Acrylic group, (meth) acrylic group, acrylamide group, vinyl group, vinyl ether group, glycidyl group, glycidyl ether group, oxetanyl group, oxetanyl ether group, maleimide group, maleimide carboxyl group, thiol group, etc. are preferable, and productivity From these viewpoints, a vinyl ether group, an acryl group, a (meth) acryl group, a glycidyl group, and a glycidyl ether group are particularly preferable.
  • the liquid crystal compound having one polymerizable functional group is further represented by the general formulas (3) and (4).
  • Z 1 and Z 3 each independently represent a hydrogen atom, a halogen atom, a cyano group or a hydrocarbon group having 1 to 18 carbon atoms
  • Z 2 and Z 4 each independently represent a hydrogen atom or methyl
  • t and u independently represents 0, 1 or 2
  • v represents an integer of 2 to 18
  • W 3 represents a single bond, —O—, —COO— or —OCO—
  • A, B, C, D, E and F are each independently a 1,4-phenylene group, a 1,4-phenylene group in which a non-adjacent CH group is substituted with nitrogen, a 1,4-cyclohexylene group, 1 1,4-cyclohexylene group, 1,4-cyclohexenyl group, 1,4-bicyclo (2,2,2) octylene group in which two or two non-adjacent CH 2 groups are substituted with oxygen or sulfur atoms, deca Hydronaphthalene-2,6-
  • liquid crystal compounds (Wherein m represents an integer of 2 to 18, n represents an integer of 0 to 18, R represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a carboxyl group, In the case where these groups are alkyl groups having 1 to 6 carbon atoms or alkoxy groups having 1 to 6 carbon atoms, they are all unsubstituted or substituted by one or more halogen atoms. These liquid crystal compounds may be used alone or in combination of two or more.
  • liquid crystal compound having two or more polymerizable functional groups used in the birefringent lens material for stereoscopic image display of the present invention exhibits liquid crystallinity alone or in a composition with another liquid crystal compound. If it is a compound which has two or more polymerizable functional groups, there will be no limitation in particular and a well-known and usual thing can be used.
  • a rod-like liquid crystal compound having a polymerizable group is preferable because it can easily produce a liquid crystal having a temperature range around room temperature.
  • P represents a polymerizable functional group
  • Sp represents a spacer group having 0 to 18 carbon atoms
  • m represents 0 or 1
  • MG represents a mesogenic group or a mesogenic supporting group
  • R 1 represents Formula (1-a)
  • each polymerizable functional group may have a substituent such as a halogen atom, a methyl group, a trifluoromethyl group, or the like as long as it does not inhibit the polymerizability.
  • the mesogenic group or mesogenic support group of the general formula (1) is composed of a ring structure and a group linking the ring structure.
  • the general formula (1-1) is composed of a ring structure and a group linking the ring structure.
  • MG 1 and MG 2 each independently represent one or more ring structures
  • Sp 1 , Sp 2 and Sp 3 each independently represents a single bond or a divalent organic group
  • n is 1
  • one ring structure can be a mesogenic group or mesogenic group, it represents 0 to 5.
  • two or more ring structures can be a mesogenic group or mesogenic group, it represents 1 to 6.
  • MG 1 and MG 2 having at least one ring structure are as follows:
  • Sp represents a single bond or an alkylene group (the alkylene group may be substituted with one or more halogen atoms or CN, and is present in this group).
  • Each CH 2 group or two or more non-adjacent CH 2 groups independently of each other in a form in which oxygen atoms are not directly bonded to each other, —O—, —S—, —NH—, — N (CH 3 ) —, —CO—, —COO—, —OCO—, —OCOO—, —SCO—, —COS— or —C ⁇ C— may be substituted.
  • MG is the general formula (1-b)
  • A1, A2, and A3 are each independently 1,4-phenylene group, 1,4-cyclohexylene group, 1,4-cyclohexenyl group, tetrahydropyran-2,5-diyl group, 1, 3-dioxane-2,5-diyl group, tetrahydrothiopyran-2,5-diyl group, 1,4-bicyclo (2,2,2) octylene group, decahydronaphthalene-2,6-diyl group, pyridine- 2,5-diyl group, pyrimidine-2,5-diyl group, pyrazine-2,5-diyl group, thiophene-2,5-diyl group-, 1,2,3,4-tetrahydronaphthalene-2,6- Diyl group, 2,6-naphthylene group, phenanthrene-2,7-diyl group, 9,10-dihydrophenant
  • Polymerizable functional groups are represented by the general formulas (P-1) to (P-18)
  • An acrylic group as shown in (meth) acrylic group, acrylamide group, vinyl group, vinyl ether group, glycidyl group, glycidyl ether group, oxetanyl group, oxetanyl ether group, maleimide group, maleimide carboxyl group, thiol group, etc. are preferable.
  • a vinyl ether group, an acrylic group, a (meth) acryl group, a glycidyl group, and a glycidyl ether group are particularly preferable.
  • Liquid crystal compounds having two or more polymerizable functional groups are further represented by the general formulas (2a) and (2b).
  • Z 10 and Z 11 each independently represent a hydrogen atom or a methyl group
  • m and m 1 each represents 0 or 1
  • W 1 , W 11 , W 2 and W 12 each independently represent a single bond.
  • -O-, -COO- or -OCO-, Y 0 , Y 1 , Y 2 and Y 11 each independently represent -COO- or -OCO-
  • r, r1, s and s1 each represents Independently represents an integer of 2 to 18, but the 1,4-phenylene group present in the formula is an alkyl group having 1 to 7 carbon atoms, an alkoxy group, an alkanoyl group, a cyano group, or a halogen atom.
  • a compound selected from the group of compounds represented by formula (1) may be substituted.
  • n and n each independently represents an integer of 1 to 18, and R represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or a cyano group.
  • R represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or a cyano group.
  • these groups are alkyl groups having 1 to 6 carbon atoms or alkoxy groups having 1 to 6 carbon atoms, they may be all unsubstituted or substituted with one or more halogen atoms.
  • These liquid crystal compounds can be used alone or in combination of two or more.
  • the birefringent lens material for stereoscopic image display of the present invention can also use a polymerization initiator to polymerize a liquid crystal compound having a polymerizable functional group.
  • a polymerization initiator used when the polymerization is carried out by light irradiation, known and conventional ones can be used.
  • the amount of the photopolymerization initiator used is preferably 0.1 to 10% by mass, particularly preferably 0.5 to 5% by mass, based on the birefringent lens material for stereoscopic image display. These can be used alone or in combination of two or more.
  • thermal polymerization initiator used in the thermal polymerization known ones can be used.
  • methyl acetoacetate peroxide cumene hydroperoxide, benzoyl peroxide, bis (4-t-butylcyclohexyl) Peroxydicarbonate, t-butylperoxybenzoate, methyl ethyl ketone peroxide, 1,1-bis (t-hexylperoxy) 3,3,5-trimethylcyclohexane, p-pentahydroperoxide, t-butylhydroper Organic peroxides such as oxide, dicumyl peroxide, isobutyl peroxide, di (3-methyl-3-methoxybutyl) peroxydicarbonate, 1,1-bis (t-butylperoxy) cyclohexane, 2,2 '-Azobisisobutyronitrile 2,2′-azobis (2,4-dimethylvaleronitrile) and other azon
  • the amount of the thermal polymerization initiator used is preferably from 0.1 to 10% by mass, particularly preferably from 0.5 to 5% by mass, based on the birefringent lens material for stereoscopic image display. These can be used alone or in combination of two or more. Moreover, it can also use together with a photoinitiator.
  • a polymerization inhibitor In order to produce the birefringent lens material for stereoscopic image display of the present invention stably or to store it stably, a polymerization inhibitor can also be used.
  • the polymerization inhibitor include phenol compounds, quinone compounds, amine compounds, thioether compounds, nitroso compounds, and the like.
  • phenolic compounds include p-methoxyphenol, cresol, t-butylcatechol, 3.5-di-t-butyl-4-hydroxytoluene, 2.2'-methylenebis (4-methyl-6-t-butylphenol) 2.2′-methylenebis (4-ethyl-6-tert-butylphenol), 4.4′-thiobis (3-methyl-6-tert-butylphenol), 4-methoxy-1-naphthol, 4,4′- Dialkoxy-2,2′-bi-1-naphthol, and the like.
  • quinone compounds include hydroquinone, methylhydroquinone, tert-butylhydroquinone, p-benzoquinone, methyl-p-benzoquinone, tert-butyl-p-benzoquinone, 2,5-diphenylbenzoquinone, 2-hydroxy-1,4-naphthoquinone 1,4-naphthoquinone, 2,3-dichloro-1,4-naphthoquinone, anthraquinone, diphenoquinone and the like.
  • amine compounds include p-phenylenediamine, 4-aminodiphenylamine, N.I. N'-diphenyl-p-phenylenediamine, Ni-propyl-N'-phenyl-p-phenylenediamine, N- (1.3-dimethylbutyl) -N'-phenyl-p-phenylenediamine, N.I. N′-di-2-naphthyl-p-phenylenediamine, diphenylamine, N-phenyl- ⁇ -naphthylamine, 4.4′-dicumyl-diphenylamine, 4.4′-dioctyl-diphenylamine and the like.
  • thioether compounds include phenothiazine and distearyl thiodipropionate.
  • nitroso compounds include N-nitrosodiphenylamine, N-nitrosophenylnaphthylamine, N-nitrosodinaphthylamine, p-nitrosophenol, nitrosobenzene, p-nitrosodiphenylamine, ⁇ -nitroso- ⁇ -naphthol, and the like, N, N-dimethyl p-nitrosoaniline, p-nitrosodiphenylamine, p-nitronedimethylamine, p-nitrone-N, N-diethylamine, N-nitrosoethanolamine, N-nitrosodi-n-butylamine, N-nitroso-Nn-butyl- 4-butanolamine, N-nitroso-diisopropanolamine, N-nitroso-N-ethyl-4-butanolamine, 5-nitroso-8-hydroxyquinoline, N-nitrosomorpholine, N-nitros
  • a general-purpose additive can be used for obtaining a coating film having a uniform film thickness or according to each purpose.
  • additives such as a leveling agent, a thixo agent, a surfactant, an ultraviolet absorber, an infrared absorber, an antioxidant, and a surface treatment agent can be added to such an extent that the liquid crystal alignment ability is not significantly reduced.
  • the birefringent lens material for stereoscopic image display of the present invention does not normally use a solvent, but a solvent can also be used for uniform application.
  • the solvent used is a solvent to be used if the polymerizable liquid crystal composition of the present invention can be aligned without defects when the substrate or the alignment film formed on the substrate is not completed when coated on the substrate.
  • the solvent in which a polymeric liquid crystal compound shows favorable solubility is preferable.
  • solvents examples include aromatic hydrocarbons such as toluene, xylene, cumene, and mesitylene, ester solvents such as methyl acetate, ethyl acetate, propyl acetate, and butyl acetate, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone.
  • aromatic hydrocarbons such as toluene, xylene, cumene, and mesitylene
  • ester solvents such as methyl acetate, ethyl acetate, propyl acetate, and butyl acetate, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone.
  • Ketone solvents tetrahydrofuran, 1,2-dimethoxyethane, ether solvents such as anisole, amide solvents such as N, N-dimethylformamide, N-methyl-2-pyrrolidone, propylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether Examples include acetate, ⁇ -butyrolactone, chlorobenzene and the like. These can be used alone or in combination of two or more.
  • the birefringent lens material for stereoscopic image display according to the present invention promotes the homogeneous orientation as necessary when it takes a homogeneously oriented state by simply applying it in the process of producing the birefringent lens for stereoscopic image display.
  • a surfactant or polymer is used.
  • the surfactant to be used is not particularly limited, but a surfactant having a smaller surface tension than the liquid crystal compound having a polymerizable functional group is preferable.
  • examples of such surfactants include fluorine-containing nonionic surfactants, organosilane surfactants, polyacrylate surfactants, and the like.
  • the surfactant may have a polymerizable group in order to form a stronger film when polymerized.
  • the polymer to be used is not particularly limited, but a polymer having a smaller surface tension than the liquid crystal compound having a polymerizable functional group is preferable.
  • polystyrene resin examples include polyethylene, polypropylene, polyisobutylene, paraffin, liquid paraffin, chlorinated polypropylene, chlorinated paraffin, chlorinated liquid paraffin, and polyvinylidene fluoride.
  • the polymer preferably has a weight average molecular weight of 200 to 1,000,000, more preferably 300 to 100,000, and particularly preferably 400 to 10,000.
  • the base material used for the birefringent lens for stereoscopic image display of the present invention is a base material normally used for liquid crystal devices, displays, optical components and optical films, and is coated with the birefringent lens material for stereoscopic image display of the present invention.
  • a substrate include a glass substrate, a metal substrate, a ceramic substrate, and a plastic substrate.
  • the substrate when the substrate is an organic material, examples thereof include cellulose derivatives, polyolefins, polyesters, polyolefins, polycarbonates, polyacrylates, polyarylates, polyether sulfones, polyimides, polyphenylene sulfides, polyphenylene ethers, nylons, polystyrenes, and the like.
  • polyester, polystyrene, polyolefin, cellulose derivative, polyarylate, and polycarbonate are preferable.
  • the base material is usually subjected to an orientation treatment or orientation film so that the birefringent lens material for stereoscopic image display is oriented when the birefringent lens material for stereoscopic image display of the present invention is applied.
  • orientation treatment include stretching treatment, rubbing treatment, polarized ultraviolet visible light irradiation treatment, ion beam treatment, and the like.
  • the alignment film is used, a known and conventional alignment film is used.
  • Such alignment films include polyimide, polysiloxane, polyamide, polyvinyl alcohol, polycarbonate, polystyrene, polyphenylene ether, polyarylate, polyethylene terephthalate, polyether sulfone, epoxy resin, epoxy acrylate resin, acrylic resin, coumarin compound, chalcone.
  • the compound include compounds, cinnamate compounds, fulgide compounds, anthraquinone compounds, azo compounds, and arylethene compounds.
  • the compound subjected to the alignment treatment by rubbing is preferably an alignment treatment or a compound in which crystallization of the material is promoted by inserting a heating step after the alignment treatment.
  • the application method for obtaining the birefringent lens for stereoscopic image display of the present invention includes applicator method, bar coating method, spin coating method, gravure printing method, flexographic printing method, ink jet method, die coating method, cap coating method, dipping. Etc., a well-known and usual method can be performed.
  • a birefringent lens material for stereoscopic image display diluted with a solvent it is dried after application.
  • the birefringent lens for stereoscopic image display of the present invention is molded by polymerizing the birefringent lens material for stereoscopic image display into a lens shape using a photomask, or by applying a coating film of the birefringent lens material for stereoscopic image display as a lens. This is done by covering with a resin mold.
  • the coating film of the birefringent lens material for stereoscopic image display is a concave lens-shaped resin mold having a refractive index equal to the ordinary refractive index (no) of the birefringent lens material for stereoscopic image display of the present invention. Cover and polymerize in the covered state. When the resin mold is once removed, the polymerization is performed after applying the resin used for the resin mold to the coating film of the birefringent lens material for stereoscopic image display from which the resin mold is removed.
  • the polymerization operation of the birefringent lens material for stereoscopic image display of the present invention is generally carried out by applying a birefringent lens material for stereoscopic image display, forming it into a lens shape, and then irradiating it with light such as ultraviolet rays or heating.
  • light irradiation specifically, irradiation with ultraviolet light of 390 nm or less is preferable, and irradiation with light having a wavelength of 250 to 370 nm is most preferable.
  • the polymerizable liquid crystal composition causes decomposition or the like due to ultraviolet light of 390 nm or less, it may be preferable to perform polymerization treatment with ultraviolet light of 390 nm or more.
  • This light is preferably diffused light and unpolarized light.
  • the polymerization by heating is preferably performed at a temperature at which the birefringent lens material for stereoscopic image display exhibits a liquid crystal phase or at a temperature lower than that, particularly when a thermal polymerization initiator that releases radicals by heating is used. It is preferable to use one having a temperature within the above temperature range.
  • the thermal polymerization initiator and the photopolymerization initiator are used in combination, the polymerization temperature and the polymerization temperature are set so that the polymerization speeds of both the photo-alignment film and the polymerizable liquid crystal film are not greatly different together with the limitation of the temperature range. It is preferred to select each initiator.
  • the heating temperature depends on the transition temperature from the liquid crystal phase to the isotropic phase of the polymerizable liquid crystal composition
  • the heating temperature is preferably lower than the temperature at which inhomogeneous polymerization is induced by heat.
  • the glass transition point of the base material made of an organic material is exceeded, thermal deformation of the base material becomes remarkable, and therefore, the glass transition point of the base material to the base material is preferable.
  • a polymeric group is a (meth) acryloyl group
  • the birefringent lens for stereoscopic image display can be heat-treated in order to stabilize the solvent resistance and heat resistance of the obtained birefringent lens for stereoscopic image display.
  • heating within a range not exceeding the glass transition point of a base material made of an organic material is preferable.
  • light irradiation treatment can also be performed.
  • the liquid crystal compound component in the birefringent lens for stereoscopic image display is not photodegraded by light irradiation.
  • the obtained birefringent lens for stereoscopic image display may be used integrally with the base material while leaving the base material (see FIG. 2), and does not have a base material by peeling from the base material. It can also be used with only the lens (see FIG. 1).
  • birefringent lens material (1) for stereoscopic image display 50 parts of a liquid crystal compound represented by the formula (B-1), 20 parts of a liquid crystal compound represented by the formula (B-2), 0.1 part of Darocur TPO (C-1), p-methoxyphenol (D-1 ) 0.1 part was heated and mixed to obtain a birefringent lens material (1) for stereoscopic image display of the present invention.
  • birefringent lens materials (2) to (20) for stereoscopic image display were obtained in the same manner as the preparation of the birefringent lens material (1) for stereoscopic image display of the present invention.
  • Tables 1 to 5 show specific compositions of the birefringent lens materials (1) to (20) for stereoscopic image display of the present invention.
  • Irgacure 651 (C-2) (manufactured by BASF) Irgacure 907 (C-3) (BASF)
  • Kinopower LSN (D-2) (manufactured by Kawasaki Kasei Kogyo Co., Ltd.)
  • Butyl acrylate (E-1) (manufactured by Toagosei Co., Ltd.)
  • IRGANOX 1076 (E-2) (BASF) Cyclopentanone (F-1)
  • Example 1 The polyimide solution for alignment film was applied to a glass substrate having a thickness of 0.7 mm using a spin coating method, dried at 100 ° C. for 10 minutes, and then baked at 200 ° C. for 60 minutes to obtain a coating film. The obtained coating film was rubbed. The rubbing treatment was performed using a commercially available rubbing apparatus.
  • the birefringent lens material (1) for stereoscopic image display of the present invention was applied to the rubbed substrate by a spin coating method while being heated to 70 ° C.
  • the base material rubbed on the obtained coating film was placed so that the rubbing direction was antiparallel, and then cooled to room temperature. Thereafter, UV light was irradiated for 25 seconds at an intensity of 40 mW / cm 2 using a high-pressure mercury lamp.
  • UV light was irradiated for 25 seconds at an intensity of 40 mW / cm 2 using a high-pressure mercury lamp.
  • cured material of the birefringent lens material for stereoscopic image display of this invention was obtained.
  • the obtained cured product had a film thickness of 50 ⁇ m, no of 1.537, ne of 1.701, and ⁇ n of 0.165.
  • the orientation was also good.
  • the transition temperature from the solid phase to the liquid crystal phase was ⁇ 21 ° C., and the transition temperature from the
  • Example 2 to 14 In the same manner as Example 1, a cured product of the birefringent lens material for stereoscopic image display of the invention of Examples 2 to 13 was obtained. Each cured product had a film thickness of 50 ⁇ m and good orientation. The results obtained are shown in Table 3.
  • the stereoscopic image display birefringent lens material of the present invention can be polymerized at room temperature, has good orientation, and is excellent in productivity.
  • Example 15 The polyimide solution for alignment film was applied to a glass substrate having a thickness of 0.7 mm using a spin coating method, dried at 100 ° C. for 10 minutes, and then baked at 200 ° C. for 60 minutes to obtain a coating film. The obtained coating film was rubbed. The rubbing treatment was performed using a commercially available rubbing apparatus. The birefringent lens material (15) for stereoscopic image display of the present invention was applied to the rubbed substrate 3 while being heated to 70 ° C. by a spin coating method. The resin mold 1 subjected to the alignment treatment on the obtained coating film was arranged so that the alignment direction of the rubbed substrate and the alignment direction of the resin mold 1 were parallel, and then cooled to room temperature.
  • Example 16 The polyimide solution for alignment film was applied to a glass substrate having a thickness of 0.7 mm using a spin coating method, dried at 100 ° C. for 10 minutes, and then baked at 200 ° C. for 60 minutes to obtain a coating film. The obtained coating film was rubbed. The rubbing treatment was performed using a commercially available rubbing apparatus. The birefringent lens material (15) for stereoscopic image display of the present invention was applied to the rubbed substrate 3 while being heated to 70 ° C. by a spin coating method. The resin mold 1 subjected to the alignment treatment on the obtained coating film was arranged so that the alignment direction of the rubbed substrate and the alignment direction of the resin mold 1 were parallel, and then cooled to room temperature.
  • the resin mold 1 was slowly removed, and an ultraviolet curable epoxy acrylate resin was applied by spin coating. Thereafter, UV light was irradiated for 25 seconds at an intensity of 40 mW / cm 2 using a high-pressure mercury lamp.
  • UV light was irradiated for 25 seconds at an intensity of 40 mW / cm 2 using a high-pressure mercury lamp.
  • the obtained birefringent lens for stereoscopic image display of the present invention had no defects and good orientation.
  • Example 17 The polyimide solution for alignment film was applied to a glass substrate having a thickness of 0.7 mm using a spin coating method, dried at 100 ° C. for 10 minutes, and then baked at 200 ° C. for 60 minutes to obtain a coating film. The obtained coating film was rubbed. The rubbing treatment was performed using a commercially available rubbing apparatus.
  • the birefringent lens for stereoscopic image display shown in FIG. 2 was obtained.
  • the obtained birefringent lens for stereoscopic image display of the present invention had no defects and good orientation.
  • the transition temperature from the solid phase to the liquid crystal phase is ⁇ 26 ° C.
  • the transition temperature from the liquid crystal phase to the liquid phase is 96 ° C. Met.
  • the structure of the birefringent lens for stereoscopic image display of this invention is shown.
  • the structure of the birefringent lens (with a base material) for stereoscopic image display of the present invention is shown.
  • Resin mold 2 Birefringent lens 3: Base material

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PCT/JP2011/079488 2010-12-27 2011-12-20 立体画像表示装置用複屈折レンズ材料、及び、立体画像表示装置用複屈折レンズの製造方法 Ceased WO2012090785A1 (ja)

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KR1020137015707A KR101952697B1 (ko) 2010-12-27 2011-12-20 입체화상표시장치용 복굴절 렌즈 재료, 및, 입체화상표시장치용 복굴절 렌즈의 제조 방법
US13/976,874 US9927625B2 (en) 2010-12-27 2011-12-20 Birefringent lens material for stereoscopic image display device and method for producing birefringent lens for stereoscopic image display device
EP11852367.9A EP2660631B1 (en) 2010-12-27 2011-12-20 Birefringent lens material for stereoscopic image display device, and method of manufacturing birefringent lens for stereoscopic image display device
JP2012548159A JP5553184B2 (ja) 2010-12-27 2011-12-20 立体画像表示装置用複屈折レンズ材料、及び、立体画像表示装置用複屈折レンズの製造方法
CN201180062991.0A CN103282800B (zh) 2010-12-27 2011-12-20 立体图像显示装置用双折射透镜材料和立体图像显示装置用双折射透镜的制造方法
US14/513,701 US9599829B2 (en) 2010-12-27 2014-10-14 Birefringent lens material for stereoscopic image display device and method for producing birefringent lens for stereoscopic image display device

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