WO2010150384A1 - 光学部材及びその製造方法 - Google Patents
光学部材及びその製造方法 Download PDFInfo
- Publication number
- WO2010150384A1 WO2010150384A1 PCT/JP2009/061617 JP2009061617W WO2010150384A1 WO 2010150384 A1 WO2010150384 A1 WO 2010150384A1 JP 2009061617 W JP2009061617 W JP 2009061617W WO 2010150384 A1 WO2010150384 A1 WO 2010150384A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- color filter
- layer
- optical member
- optical
- substrate
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
-
- 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
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/42—Polarizing, birefringent, filtering
-
- 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
- B32B2457/204—Plasma displays
-
- 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
- B32B2457/206—Organic displays, e.g. OLED
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2385/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon; Derivatives of such polymers
- C08J2385/02—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon; Derivatives of such polymers containing phosphorus
Definitions
- the present invention relates to an optical member having a color filter function and a polarizing function, and more particularly to an optical member that can be wound into an unprecedented thin and long roll and a method for manufacturing the same.
- a polarizing plate, a retardation plate, or an elliptically polarizing plate is generally used for polarization control and optical compensation.
- a color liquid crystal display device for performing color display and a color organic EL display use a color filter substrate (Patent Document 1, etc.).
- Such a color liquid crystal display device includes a sheet-like glass substrate having a black matrix, a colored layer composed of three primary colors of red (R) / green (G) / blue (B), and a common transparent electrode layer.
- An alignment layer is formed on the substrate, an alignment layer is formed on a TFT substrate having a thin film transistor (TFT) and a pixel electrode, and these two substrates are opposed to the alignment layer to maintain a predetermined gap.
- a liquid crystal panel manufactured by filling a liquid crystal material to form a liquid crystal layer and bonding and fixing a color filter substrate and a TFT substrate with a sealing material around the liquid crystal layer is used.
- a transmissive color liquid crystal display device is obtained by attaching polarizing plates to the outer surfaces of the color filter substrate and the TFT substrate of the liquid crystal panel.
- the color of the liquid crystal panel A circularly polarizing plate is attached to the filter substrate.
- the color filter method includes a method in which an RGB color filter substrate is combined with white light emission.
- This uses a color filter substrate in which a color filter with TFT is formed on a transparent substrate made of glass or plastic.
- a TFT is formed on a transparent substrate, and then an RGB color filter layer is formed.
- a transparent anode electrode connected to the TFT is formed on the color filter layer.
- an organic EL layer composed of a hole transport layer, a white light emitting layer, an electron transport layer and the like is formed, and then a cathode electrode is formed.
- the cathode electrode is usually made of lithium fluoride (LiF) or aluminum (Al) and is formed as a common electrode.
- a sealing layer is formed so as to cover the display area, and finally a circularly polarizing plate is attached to the outside of the color filter substrate to complete.
- the liquid crystal alignment direction and the direction of the optical axis of the optical film layer such as a polarizing plate or an elliptical polarizing plate vary from one liquid crystal panel to another.
- the alignment direction of the liquid crystal and the optical axis of the optical film layer vary, there is a problem that display characteristics deteriorate, such as a decrease in contrast.
- the color filter substrate is a sheet-like glass, it is manufactured while being continuously conveyed by a roll-to-roll method that is unwound from a so-called roll and wound on the roll to improve productivity and reduce color liquid crystal at a low cost. There is a problem that it cannot be used as a member for manufacturing a display device.
- the present invention has been made in view of the above points, and provides an optical member that has a color filter function and a polarization function, and that can be wound into a thin and long roll with excellent display characteristics, and a method for manufacturing the same.
- the purpose is to do.
- the present invention is configured as follows.
- the invention according to claim 1 is an optical member composed of at least a color filter substrate and an optical film layer,
- the color filter substrate has a color filter layer formed on at least a long plastic film substrate,
- the optical member is characterized in that the optical film layer is formed on the surface of the substrate where the color filter layer is not formed via an adhesive layer.
- the invention according to claim 2 is the optical member according to claim 1, wherein the optical film layer is one or more selected from a polarizing plate, a retardation plate, and an elliptically polarizing plate. .
- the invention according to claim 3 is characterized in that the optical film layer is formed by laminating a long polarizing plate and a retardation plate continuously formed on a long supporting film.
- At least two or more sheet-like elliptical polarizing plates are arranged in parallel with a long longitudinal direction on the color filter substrate.
- the invention according to claim 5 is the optical member according to claim 1, wherein the total thickness of the optical member is 0.3 mm or less, and the optical member can be wound into a roll shape.
- Invention of Claim 6 is a manufacturing method of the optical member comprised from a color filter board
- the invention according to claim 7 is the manufacturing of the optical member according to claim 6, wherein the optical film layer is at least one selected from a polarizing plate, a retardation plate, and an elliptically polarizing plate. Is the method.
- the invention according to claim 8 is characterized in that the optical film layer is formed by laminating a long polarizing plate and a retardation plate continuously formed on a long supporting film. It is a manufacturing method of the optical member of Claim 6.
- the optical film layer is formed such that at least two sheet-like elliptical polarizing plates are arranged in parallel to a long longitudinal direction on the color filter substrate. It is a manufacturing method of the optical member of Claim 6 characterized by the above-mentioned.
- the total thickness of the optical member is 0.3 mm or less, Forming the optical film layer through an adhesive layer on the surface of the substrate where the color filter layer is not formed; After the step, the step of winding the optical member into a roll, The method of manufacturing an optical member according to claim 6, comprising:
- the present invention has the following effects.
- the color filter substrate has a color filter layer formed on at least a long plastic film substrate, and the optical member integrated with the optical film layer is: It can be used for manufacturing a color liquid crystal display device by a roll-to-roll method, and productivity can be improved and costs can be reduced. Further, an optical film layer is formed on the surface of the substrate on which the color filter layer is not formed via an adhesive layer, and the color filter substrate and the optical film layer are integrated in advance via the adhesive layer. Since it is a member, it is possible to omit the step of attaching a sheet-like optical film layer after manufacturing a liquid crystal panel as in the prior art, and to prevent the occurrence of defects due to sandwiching of dust, foreign matter, etc. in this attaching step.
- the optical film layer is at least one selected from a polarizing plate, a retardation plate, and an elliptically polarizing plate, and the optical film layer integrated with the color filter substrate is provided.
- a polarizing plate it can be applied to the manufacture of a transmissive color liquid crystal display device by a roll-to-roll method.
- an optical film layer as a retardation plate it can be applied to the production of a reflective or transflective color liquid crystal display device by a roll-to-roll method.
- the polarizing plate is bonded in the last manufacturing process of the color liquid crystal display device.
- an elliptical polarizing plate in which a polarizing plate and a retardation plate are combined in advance for the optical film layer can be applied to the production of a reflective or transflective color liquid crystal display device by a roll-to-roll method.
- the optical film layer integrated with the color filter substrate includes a long polarizing plate and a retardation plate continuously formed on the long support film. Since it is formed by laminating, the optical film layer has no breaks, and can be integrated with the color filter substrate of any color filter layer regardless of the arrangement of the color filter layer, that is, any color filter layer.
- the long optical film layer and the long color filter substrate are bonded by a roll-to-roll method, there is little variation between the optical axis of the optical film layer and the pixel direction of the color filter substrate, Therefore, when used in a color liquid crystal display device, it is possible to easily manufacture a color liquid crystal display device having excellent display characteristics with little variation between the liquid crystal alignment direction and the optical axis direction of the optical film layer.
- the optical film layer is formed by arranging at least two sheet-like elliptical polarizing plates in parallel with the long longitudinal direction on the color filter substrate.
- the color filter substrate and the optical film layer are integrated before assembling to the liquid crystal panel, so there is little variation between the alignment direction of the liquid crystal and the optical axis direction of the optical film layer, and color liquid crystal with excellent display characteristics
- a thin and long optical member that enables a display device can be obtained.
- the long color filter substrate and the optical film layer are integrated in advance, there is little variation between the direction of the pixel arrangement of the color filter substrate and the optical axis of the optical film layer, and the display characteristics. It is possible to easily manufacture a thin and long optical member that enables an excellent color liquid crystal display device.
- the total thickness of the optical member is 0.3 mm or less, and the optical member can be wound in a roll shape.
- the curvature radius of the optical member can be bent. Since it becomes large, the diameter of the roll core to wind up becomes large, and when the maximum diameter of the wound roll is compared as the same, the winding length with respect to one roll is reduced.
- the total thickness of the optical member is 0.3 mm or less, and after the step of forming the optical film layer through the adhesive layer on the surface of the substrate on which the color filter layer is not formed, A step of winding the optical member into a roll is provided, and when the total thickness of the optical member is 0.3 mm or less, a longer roll-shaped optical member can be made into one roll.
- the total thickness of the optical member exceeds 0.3 mm, the winding length with respect to one roll is reduced.
- FIG. 1 is a schematic external view showing a first embodiment of an optical member
- FIG. 2 is a sectional view of the first embodiment of the optical member.
- the optical member 1 includes at least a color filter substrate 3 and an optical film layer 2.
- the color filter substrate 3 has a color filter layer 3b formed on at least a long plastic film substrate 3a, and the surface of the substrate 3a on the side where the color filter layer 3b is not formed is optically connected via an adhesive layer 4.
- a film layer 2 is formed.
- the color filter substrate 3 has a color filter layer 3b formed on at least a long plastic film substrate 3a.
- the optical member 1 integrated with the optical film layer 2 is unwound from a roll and wound around the roll. It can be used for manufacturing a color liquid crystal display device by a roll-to-roll method, and productivity can be improved and costs can be reduced.
- the optical film layer 2 is formed on the surface of the substrate 3a where the color filter layer 3b is not formed via the pressure-sensitive adhesive layer 4, and the color filter substrate 3 and the optical film layer 2 preliminarily form the pressure-sensitive adhesive layer 4. Since the optical member 1 is integrated with the liquid crystal panel, the process of pasting the sheet-like optical film layer 2 after manufacturing the liquid crystal panel can be omitted as in the prior art. Can be prevented. Both the color filter substrate 3 and the optical film layer 2 are formed into a long shape, and the roll-to-roll method is used to easily apply the film to the film using an edge position control device (EPC) that is generally used. The longitudinal positions can be aligned and pasted.
- EPC edge position control device
- a thin and long optical member 1 that enables a color liquid crystal display device having a small variation in the alignment direction of the liquid crystal and the optical axis direction of the optical film layer 2 and having excellent display characteristics. it can.
- a thin and long optical member 1 that allows a color liquid crystal display device having excellent display characteristics with little variation between the pixel array direction of the color filter substrate 3 and the optical axis of the optical film layer 2 is easily manufactured. can do.
- the color filter substrate 3 has a color filter layer 3b formed on at least a long plastic film substrate 3a, but also includes a gas barrier layer, a black matrix, an RGB colored layer, and a common transparent electrode layer. Is desirable. Usually, the black matrix and the colored layer are regularly arranged in the vertical and horizontal directions to form a square pattern.
- a transparent resin film can be used, and the type thereof is not particularly limited.
- suitable plastic films include polycarbonate, polysulfone resin, olefin resin, and cyclic polyolefin resin.
- the thickness of the plastic film substrate 3a is, for example, about 50 to 200 ⁇ m.
- the gas barrier layer is formed of a thin film such as SiOx or SiNx by a vacuum film forming method such as a sputtering method, a CVD method, or a vacuum evaporation method.
- the thickness of the gas barrier layer is, for example, about 10 to 100 nm.
- Black matrix has a method of forming a thin metal film of chromium or the like by a vacuum film formation method such as sputtering or vacuum deposition, and patterning this thin film by a wet etching method or a dry etching method.
- Examples include a method in which a photosensitive resin layer containing light-shielding particles such as carbon fine particles and metal oxide is formed by a slit coating method, a micro gravure coating method, etc., and the photosensitive resin layer is patterned. it can.
- the thickness of the black matrix by the photosensitive resin layer is, for example, about 0.5 to 2 ⁇ m.
- the RGB colored layer is formed by repeating the process of forming a colored photosensitive resin layer and patterning with each of red, green, and blue resins, or RGB
- An example is a method in which a colored resin ink is applied and formed for each color pattern of RGB by an inkjet method.
- the thickness of the RGB colored layer is, for example, about 1 to 2 ⁇ m.
- the colored layer is not limited to the three primary colors RGB, but may be a multicolor such as four colors obtained by adding yellow (Y) or emerald (blue green) to RGB, and five colors obtained by adding Y and cyan (C) to RGB.
- the common transparent electrode layer includes a method of forming a thin film of indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO) or the like by a sputtering method, a vacuum deposition method, or the like. The method of forming is the most common.
- the thickness of the common transparent electrode layer is, for example, about 50 to 200 nm.
- the optical film layer 2 is 1 or more types chosen from a polarizing plate, a phase difference plate, and a circularly-polarizing plate, any may be sufficient.
- the optical film layer integrated with the color filter substrate into a polarizing plate, it can be applied to the production of a transmissive color liquid crystal display device by a roll-to-roll method.
- an optical film layer as a retardation plate it can be applied to the production of a reflective or transflective color liquid crystal display device by a roll-to-roll method.
- the polarizing plate is bonded in the last manufacturing process of the color liquid crystal display device.
- an elliptical polarizing plate in which a polarizing plate and a retardation plate are combined in advance for the optical film layer can be applied to the production of a reflective or transflective color liquid crystal display device by a roll-to-roll method.
- the polarizing plate has a function of extracting linearly polarized light from incident light, and the type thereof is not particularly limited.
- a suitable polarizing plate one having a configuration in which a transparent protective layer is provided on both surfaces of a polarizing film in which a dichroic dye is adsorbed and oriented on a polyvinyl alcohol resin can be exemplified.
- the dichroic dye iodine or a dichroic organic dye is used.
- a transparent protective layer a triacetyl cellulose film etc. are used, for example. This protective layer may be provided only on one side, not on both sides of the polarizing film.
- the thickness of the polarizing film is, for example, about 5 to 50 ⁇ m, and the thickness of the entire polarizing plate is, for example, about 50 to 200 ⁇ m.
- the retardation film is usually composed of a stretched resin film.
- the resin constituting the retardation plate include polycarbonate, polystyrene, polymethyl methacrylate, polysulfone resin, olefin resin, cyclic polyolefin resin, cellulose acetate resin, and the like.
- the thickness of the retardation plate is, for example, about 10 to 100 ⁇ m.
- a coating type retardation plate formed by applying a polymerizable liquid crystal composition on a transparent substrate and aligning it, and then fixing the alignment can be used.
- the material of the substrate of the coating type retardation plate is not particularly limited as long as it is transparent. Examples of suitable substrates include ceramics and resins.
- As the resin for the substrate triethylcellulose, polyethylene terephthalate, polyolefin, polycarbonate, polyethersulfone, or the like can be used.
- a long and seamless retardation plate can be obtained by a continuous method such as a roll-to-roll method using a long film substrate.
- the polymerizable liquid crystal composition a compound having a polymerizable group which exhibits liquid crystallinity alone or in a composition with another liquid crystal compound, for example, JP-A-7-294735, JP-A-8-3111, Examples thereof include a rod-like polymerizable liquid crystal compound having a polymerizable functional group as described in JP-A-2002-308831.
- the thickness of the coating type retardation plate is, for example, about 0.5 to 10 ⁇ m. When the resin substrate is used, the thickness of the entire retardation plate is, for example, about 50 to 200 ⁇ m.
- the circularly polarizing plate is composed of a laminate of a linearly polarizing plate and a quarter wavelength plate or a laminate of a linearly polarizing plate, a half wavelength plate and a quarter wavelength plate.
- the optical film layer 2 is composed of a laminate of the polarizing plate 11, the half-wave plate 22 and the quarter-wave plate 33.
- the pressure-sensitive adhesive for forming the pressure-sensitive adhesive layer 4 is, for example, a polymer such as (meth) acrylic polymer, silicone-based polymer, polyester, polyurethane, polyamide, polyether, fluorine-based polymer, and rubber-based polymer as a base polymer. It can select suitably and can be used.
- a polymer such as (meth) acrylic polymer, silicone-based polymer, polyester, polyurethane, polyamide, polyether, fluorine-based polymer, and rubber-based polymer as a base polymer. It can select suitably and can be used.
- the pressure-sensitive adhesive layer 4 has features such as prevention of foaming and peeling phenomenon due to moisture absorption, deterioration of optical characteristics due to thermal expansion difference and the like, prevention of warpage of the image display panel, and formation of an image display device having high quality and excellent durability. More preferred are those with low hygroscopicity and excellent heat resistance.
- (meth) acrylic polymers that are excellent in optical transparency and exhibit appropriate wettability, cohesiveness, and adhesive pressure-sensitive adhesive properties are preferable.
- the (meth) acrylic polymer refers to a polymer containing alkyl (meth) acrylate as a main monomer unit.
- acrylate or / and methacrylate is represented as (meth) acrylate.
- the pressure-sensitive adhesive layer 4 is formed by laminating the pressure-sensitive adhesive layer 4 on an optical film such as a polarizer, a polarizing plate or a retardation plate.
- the forming method is not particularly limited, and examples thereof include a method of applying an adhesive solution to an optical film and drying, a method of transferring using a release sheet provided with an adhesive layer and the like.
- the surface of the release sheet may be subjected to a low-adhesive release treatment such as silicone treatment, long-chain alkyl treatment, and fluorine treatment as necessary.
- the thickness of the pressure-sensitive adhesive layer 4 is generally 1 to 30 ⁇ m, preferably 5 to 25 ⁇ m, and more preferably 5 to 15 ⁇ m.
- FIG. 3 is a schematic external view showing a second embodiment of the optical member
- FIG. 4 is a cross-sectional view of the second embodiment of the optical member.
- the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
- the optical film layer 2 is formed by arranging at least two sheet-like elliptical polarizing plates 60 in parallel with the long longitudinal direction on the color filter substrate 3.
- the sheet-like elliptically polarizing plate 6 is arranged at a position where it overlaps with the black matrix formed on the color filter substrate 3 and the pattern of the colored layer.
- the sheet-like elliptically polarizing plate 60 is composed of a laminate of the polarizing plate 11, the pressure-sensitive adhesive layer 45, the half-wave plate 22, the pressure-sensitive adhesive layer 46, and the quarter-wave plate 33.
- the optical film layer 2 is formed by arranging at least two sheet-like elliptical polarizing plates 60 in parallel with the long longitudinal direction on the color filter substrate 3, and the alignment direction of the liquid crystal and the light of the optical film layer 2. It is possible to obtain a thin and long optical member 1 that enables a color liquid crystal display device with little variation in the axial direction and excellent display characteristics. In addition, a thin and long optical member 1 that enables a color liquid crystal display device with less variation between the pixel array direction of the color filter substrate 3 and the optical axis of the optical film layer 2 and excellent display characteristics can be easily obtained. Can be manufactured.
- FIG. 5 is a schematic external view showing a first embodiment of a method for producing an optical member.
- the first embodiment is a method for manufacturing the optical member 1 shown in FIGS. 1 and 2, and unwinds the long color filter substrate 3 from the color filter substrate unwinding portion 301.
- the long adhesive layer protective film 400 is unwound from the adhesive layer unwinding section 401, and the adhesive layer protective film 400 has both sides protected by one protective film 400a and the other protective film 400b.
- the protective film 400a is peeled from the pressure-sensitive adhesive layer 4 at the first peeling portion 402a, and the protective film 400a is wound around the first pressure-sensitive adhesive layer protective film winding portion 402.
- the pressure-sensitive adhesive layer 4 protected by the other protective film 400b is bonded to the color filter substrate 3, and the other peeling layer 404a is bonded to the other of the pressure-sensitive adhesive layer 4 after the bonding.
- the protective film 400 b is peeled off from the pressure-sensitive adhesive layer 4, and the other protective film 400 b is wound around the second pressure-sensitive adhesive layer protective film winding portion 404.
- the long optical film layer 2 is unwound from the optical film layer unwinding part 201, the optical film layer 2 is bonded to the pressure-sensitive adhesive layer 4 in the optical film bonding part 202, and the optical member 1 is formed by this bonding.
- the optical member is wound around the optical member winding unit 101 in a roll shape.
- the optical film layer 2 is formed through the adhesive layer 4 on the surface of the color filter substrate 3 on which the color filter layer 2 is not formed, with the total thickness of the optical member 1 being 0.3 mm or less.
- a step of winding the optical member 1 into a roll is provided, and when the total thickness of the optical member 1 is 0.3 mm or less, the winding roll core diameter of the optical member winding portion 101 is about 3 inches to 4 inches. It is possible to make the optical member 1 in a longer roll shape into one roll. As a result, when used for manufacturing a color liquid crystal display device in a roll-to-roll system, the manufacturing time and member loss due to replacement of the roll-shaped optical member 1 are reduced, the productivity is improved, and the cost is reduced. Is possible. When the total thickness of the optical member 1 exceeds 0.3 mm, the winding length with respect to one roll is reduced.
- FIG. 6 is a schematic external view showing a second embodiment of the method for producing an optical member.
- This second embodiment is a method for manufacturing the optical member 1 shown in FIGS. 3 and 4, in which a sheet-like elliptically polarizing plate 60 is elliptically polarized by an elliptically polarizing plate supply means 603. It supplies to the plate supply stand 602.
- the elliptical polarizing plate supply base 602 reciprocates between the A position and the B position, the A position is a position where the elliptical polarizing plate 60 is received, and the B position is a position where the elliptical polarizing plate 60 is bonded to the adhesive layer 4. is there.
- the elliptical polarizing plate supply base 602 receives the elliptical polarizing plate 60 that is moved by driving the elliptical polarizing plate supply means 603 at the A position, moves to the B position, and the elliptical polarizing plate bonding means 604 transfers the elliptical polarizing plate 60 to the carrier. It is affixed on the adhesive layer 5a protected by the protective film 5b of the film 5.
- the elliptical polarizing plate laminating means 604 is a laminating roll whose surface is made of rubber.
- the elliptically polarizing plate supply unit 601 is a table on which a large number of sheet-like elliptically polarizing plates can be stacked.
- the elliptically polarizing plate supply means 603 has a mechanism that allows a sheet-like elliptically polarizing plate to be taken out from the elliptically polarizing plate supply unit 601 with a vacuum suction plate and delivered to the elliptically polarizing plate supply base 602 at the A position.
- the means for taking out and delivering the sheet-like elliptically polarizing plate may be a method other than the vacuum suction plate, such as lightly adhering with a slight adhesive.
- a method for aligning both, for example, a CCD camera and an image recognition device may be a function for aligning both, for example, a CCD camera and an image recognition device.
- the carrier film 5 has one of the pressure-sensitive adhesive layers 5a protected by the protective film 5c and the other protected by the protective film 5b.
- the carrier film unwinding unit 501 unwinds the carrier film 5, and the one protective film 5c Is peeled off at the peeling portion 502 a and wound around the carrier film protective film winding portion 502.
- the thickness of the carrier film 5 is, for example, about 50 to 150 ⁇ m.
- the elliptical polarizing plate bonding means 604 is disposed at the B position, and the elliptical polarizing plate bonding means 604 is in the conveying direction of the carrier film 5 with the elliptical polarizing plate supply base 602 stopped at the B position. To the opposite direction, and the elliptically polarizing plate 60 is bonded to the adhesive layer 5a.
- a protective film (not shown) may be attached in advance to the surface of the elliptical polarizing plate 60 to be bonded to the carrier film 5, in which case the elliptical polarizing plate supply base moves from the A position to the B position. In the meantime, the protective film is removed from the elliptically polarizing plate.
- the long pressure-sensitive adhesive layer protective film 400 is unwound from the pressure-sensitive adhesive layer unwinding portion 401, and one protective film 400a is peeled off from the pressure-sensitive adhesive layer 4 at the first peeling portion 402a, whereby the first pressure-sensitive adhesive layer protective film.
- One protective film 400 a is wound around the winding portion 402.
- the pressure-sensitive adhesive layer bonding portion 403 bonds the pressure-sensitive adhesive layer 4 of the other protective film 400b to the carrier film 5, and the pressure-sensitive adhesive layer 4 is bonded to the sheet-like elliptically polarizing plate 60.
- the other protective film 400b of the pressure-sensitive adhesive layer 4 is peeled from the pressure-sensitive adhesive layer 4 at the peeling portion 404a, the other protective film 400b is wound around the second pressure-sensitive adhesive layer protective film winding portion 404, and an optical film bonding portion It is conveyed to 202.
- the long color filter substrate 3 is unwound from the color filter substrate unwinding portion 301, the color filter substrate 3 is bonded to the adhesive layer 4 at the optical film bonding portion 202, and the optical member 1 is formed by this bonding.
- the optical member is wound around the optical member winding unit 101 in a roll shape.
- the optical film layer 2 is formed by arranging at least two sheet-like elliptical polarizing plates 60 in parallel with the long longitudinal direction on the color filter substrate 3, and the alignment direction of the liquid crystal and the optical film It is possible to obtain a thin and long optical member 1 that enables a color liquid crystal display device that has little variation in the direction of the optical axis of the layer 2 and that has excellent display characteristics. In addition, a thin and long optical member that allows a color liquid crystal display device having excellent display characteristics with little variation between the pixel array direction of the color filter substrate 3 and the optical axis of the optical film layer 2 is easily manufactured. can do.
- the present invention relates to an optical member having a color filter function and a polarization function, and in particular, can be applied to an optical member that can be wound into an unprecedented thin and long roll, and a method for manufacturing the same. It can be wound into a thin and long roll having a function and excellent display characteristics.
- the color liquid crystal display device has been described in this specification, but the present invention is applicable to various image display devices having a color filter function and a polarization function, such as a color organic EL display.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Polarising Elements (AREA)
- Optical Filters (AREA)
Abstract
Description
前記カラーフィルタ基板は、少なくとも長尺なプラスチックフィルムの基板の上にカラーフィルタ層が形成されており、
前記基板の前記カラーフィルタ層が形成されない側の面に粘着剤層を介して前記光学フィルム層が形成されていることを特徴とする光学部材である。
前記カラーフィルタ基板は、少なくとも長尺なプラスチックフィルムの基板の上に形成されており、
前記基板の前記カラーフィルタ層が形成されない側の面に粘着剤層を介して前記光学フィルム層を形成する工程を備えたことを特徴とする光学部材の製造方法である。
前記基板の前記カラーフィルタ層が形成されない側の面に粘着剤層を介して前記光学フィルム層を形成する工程と、
前記工程の後、前記光学部材をロール状に巻き取る工程と、
を備えたことを特徴とする請求項6に記載の光学部材の製造方法である。
[光学部材の第1の実施の形態]
この光学部材の第1の実施の形態を、図1及び図2に基づいて説明する。図1は光学部材の第1の実施の形態を示す外形模式図、図2は光学部材の第1の実施の形態の断面図である。
反射型、半透過型のカラー液晶表示装置の製造に適用できる。この場合偏光板は、カラー液晶表示装置の最後製造工程で貼合する。また、光学フィルム層には予め偏光板と位相差板を組み合わせた楕円偏光板とすることで、ロール・ツー・ロール方式による反射型、半透過型のカラー液晶表示装置の製造に適用できる。
[光学部材の第2の実施の形態]
この光学部材の第2の実施の形態を、図3及び図4に基づいて説明する。図3は光学部材の第2の実施の形態を示す外形模式図、図4は光学部材の第2の実施の形態の断面図である。この光学部材の第2の実施の形態は、第1の実施の形態と同じ構成は、同じ符号を付して説明を省略する。
この光学部材の製造方法の第1の実施の形態を、図5に基づいて説明する。図5は光学部材の製造方法の第1の実施の形態を示す外形模式図である。
粘着剤層貼合部403では、カラーフィルタ基板3に他方の保護フィルム400bに保護されている粘着剤層4を貼り合わせ、この貼り合わせ後に第2の剥離部404aで粘着剤層4の他方の保護フィルム400bを粘着剤層4から剥離し、第2の粘着剤層保護フィルム巻き取り部404に他方の保護フィルム400bを巻き取る。
この光学部材の製造方法の第2の実施の形態を、図6に基づいて説明する。図6は光学部材の製造方法の第2の実施の形態を示す外形模式図である。
2 光学フィルム層
3 カラーフィルタ基板
3aプラスチックフィルムの基板
3b カラーフィルタ層
4 粘着剤層
5キャリアフィルム
5a 粘着剤層
5b保護フィルム
5c保護フィルム
11偏光板
22 1/2波長板
33 1/4波長板
45 粘着剤層
46 粘着剤層
60 シート状の楕円偏光板
101光学部材巻き取り部
201 光学フィルム層巻き出し部
202 光学フィルム貼合部
301 カラーフィルタ基板巻き出し部
400粘着剤層保護フィルム
400a一方の保護フィルム
400b他方の保護フィルム
401 粘着剤層巻き出し部
402 第1の粘着剤層保護フィルム巻き取り部
402a 第1の剥離部
403 粘着剤層貼合部
404 第2の粘着剤層保護フィルム巻き取り部
404a 第2の剥離部
601 楕円偏光板供給部
602 楕円偏光板供給台
603 楕円偏光板供給手段
604 楕円偏光板貼合手段
Claims (10)
- 少なくともカラーフィルタ基板と光学フィルム層から構成される光学部材であって、
前記カラーフィルタ基板は、少なくとも長尺なプラスチックフィルムの基板の上にカラーフィルタ層が形成されており、
前記基板の前記カラーフィルタ層が形成されない側の面に粘着剤層を介して前記光学フィルム層が形成されていることを特徴とする光学部材。 - 前記光学フィルム層は、偏光板、位相差板、楕円偏光板のうちから選ばれる1種以上であることを特徴とする請求項1に記載の光学部材。
- 前記光学フィルム層は、長尺な偏光板と、長尺な支持フィルム上に連続して形成された位相差板とが積層して形成されていることを特徴とする請求項1に記載の光学部材。
- 前記光学フィルム層は、シート状の楕円偏光板が、少なくとも2枚以上前記カラーフィルタ基板上の長尺の長手方向に平行に配置して形成されていることを特徴とする請求項1に記載の光学部材。
- 前記光学部材の総厚が0.3mm以下であり、ロール状に巻き取ることが可能であることを特徴とする請求項1に記載の光学部材。
- 少なくともカラーフィルタ基板と光学フィルム層から構成される光学部材の製造方法であって、
前記カラーフィルタ基板は、少なくとも長尺なプラスチックフィルムの基板の上に形成されており、
前記基板の前記カラーフィルタ層が形成されない側の面に粘着剤層を介して前記光学フィルム層を形成する工程を備えたことを特徴とする光学部材の製造方法。 - 前記光学フィルム層は、偏光板、位相差板、楕円偏光板のうちから選ばれる1種以上であることを特徴とする請求項6に記載の光学部材の製造方法。
- 前記光学フィルム層は、長尺な偏光板と、長尺な支持フィルム上に連続して形成された位相差板とが積層して形成されていることを特徴とする請求項6に記載の光学部材の製造方法。
- 前記光学フィルム層は、シート状の楕円偏光板が、少なくとも2枚以上前記カラーフィルタ基板上の長尺の長手方向に平行に配置して形成されていることを特徴とする請求項6に記載の光学部材の製造方法。
- 前記光学部材の総厚が0.3mm以下であり、
前記基板の前記カラーフィルタ層が形成されない側の面に粘着剤層を介して前記光学フィルム層を形成する工程と、
前記工程の後、前記光学部材をロール状に巻き取る工程と、
を備えたことを特徴とする請求項6に記載の光学部材の製造方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801600240A CN102804002A (zh) | 2009-06-22 | 2009-06-25 | 光学部件及其制造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009147169A JP5606013B2 (ja) | 2009-06-22 | 2009-06-22 | 光学部材及びその製造方法 |
JP2009-147169 | 2009-06-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010150384A1 true WO2010150384A1 (ja) | 2010-12-29 |
Family
ID=43386178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/061617 WO2010150384A1 (ja) | 2009-06-22 | 2009-06-25 | 光学部材及びその製造方法 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP5606013B2 (ja) |
KR (1) | KR20120024817A (ja) |
CN (1) | CN102804002A (ja) |
WO (1) | WO2010150384A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6651638B2 (ja) | 2016-09-06 | 2020-02-19 | 沢井製薬株式会社 | 口腔内崩壊錠添加用組成物 |
JP6538014B2 (ja) * | 2016-09-06 | 2019-07-03 | 日東電工株式会社 | 光学的表示ユニットの連続製造装置及び連続製造方法 |
JP7460567B2 (ja) * | 2021-03-05 | 2024-04-02 | 日東電工株式会社 | 巻き取りロールおよび該巻き取りロールに巻き取られた光学フィルムロール |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003228047A (ja) * | 2002-02-01 | 2003-08-15 | Fuji Photo Film Co Ltd | 液晶表示装置および光学積層体 |
JP2004514934A (ja) * | 2000-12-14 | 2004-05-20 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 液晶表示ラミネート及びその製造方法 |
JP2006251095A (ja) * | 2005-03-08 | 2006-09-21 | Fuji Photo Film Co Ltd | 液晶表示装置 |
JP2008052078A (ja) * | 2006-08-25 | 2008-03-06 | Fujifilm Corp | 光学フィルムの製造方法、光学フィルム、偏光板、転写材料、液晶表示装置、及び偏光紫外線露光装置 |
JP2009086160A (ja) * | 2007-09-28 | 2009-04-23 | Dainippon Printing Co Ltd | 位相差制御部材、および位相差制御部材を用いた液晶ディスプレイ、位相差制御部材を形成するための液晶材料組成物 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003232921A (ja) * | 2002-02-08 | 2003-08-22 | Fuji Photo Film Co Ltd | ロール状円偏光板、ロール状液晶セル基板および液晶表示装置 |
JP4213616B2 (ja) * | 2004-03-31 | 2009-01-21 | 大日本印刷株式会社 | 液晶パネル用ベースフィルム、液晶パネル用機能フィルム、機能フィルムの製造方法、および機能フィルムの製造装置 |
JP4765739B2 (ja) * | 2006-04-10 | 2011-09-07 | 凸版印刷株式会社 | カラーフィルタ、その製造方法、及び液晶ディスプレイ |
JP4849454B2 (ja) * | 2006-05-12 | 2012-01-11 | 日東電工株式会社 | 楕円偏光板およびそれを用いた画像表示装置 |
JPWO2009025170A1 (ja) * | 2007-08-23 | 2010-11-25 | コニカミノルタオプト株式会社 | 長尺の位相差フィルム、長尺の楕円偏光フィルム、楕円偏光板、及び画像表示装置 |
JP5189888B2 (ja) * | 2008-05-01 | 2013-04-24 | 住友化学株式会社 | 位相差層の製造方法 |
US20110146889A1 (en) * | 2008-10-01 | 2011-06-23 | Jang Hwan Hwang | Method for manufacturing display device with optical/electronic structures |
-
2009
- 2009-06-22 JP JP2009147169A patent/JP5606013B2/ja not_active Expired - Fee Related
- 2009-06-25 CN CN2009801600240A patent/CN102804002A/zh active Pending
- 2009-06-25 KR KR1020117030641A patent/KR20120024817A/ko not_active Application Discontinuation
- 2009-06-25 WO PCT/JP2009/061617 patent/WO2010150384A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004514934A (ja) * | 2000-12-14 | 2004-05-20 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 液晶表示ラミネート及びその製造方法 |
JP2003228047A (ja) * | 2002-02-01 | 2003-08-15 | Fuji Photo Film Co Ltd | 液晶表示装置および光学積層体 |
JP2006251095A (ja) * | 2005-03-08 | 2006-09-21 | Fuji Photo Film Co Ltd | 液晶表示装置 |
JP2008052078A (ja) * | 2006-08-25 | 2008-03-06 | Fujifilm Corp | 光学フィルムの製造方法、光学フィルム、偏光板、転写材料、液晶表示装置、及び偏光紫外線露光装置 |
JP2009086160A (ja) * | 2007-09-28 | 2009-04-23 | Dainippon Printing Co Ltd | 位相差制御部材、および位相差制御部材を用いた液晶ディスプレイ、位相差制御部材を形成するための液晶材料組成物 |
Also Published As
Publication number | Publication date |
---|---|
KR20120024817A (ko) | 2012-03-14 |
JP2011002728A (ja) | 2011-01-06 |
JP5606013B2 (ja) | 2014-10-15 |
CN102804002A (zh) | 2012-11-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4775948B2 (ja) | 光学表示装置の製造システム及びその製造方法 | |
US9450210B2 (en) | Optical thin film laminate for organic electroluminescent display element, production method thereof, organic electroluminescent display element and display device | |
US8975812B2 (en) | Polarization structure, method of manufacturing a polarization structure and organic light emitting display device having a polarization structure | |
JP4335773B2 (ja) | フィルム積層物の製造方法、及びそれに用いる製造装置 | |
US9164312B2 (en) | Polarizing adhesive element, method of manufacturing the same and display apparatus having the same | |
JP2015021975A (ja) | 光学フィルム用転写体、光学フィルム用転写体の製造方法 | |
JP6257824B2 (ja) | 積層光学フィルムの製造方法 | |
TW202043821A (zh) | 抗反射用圓偏光板及使用其之影像顯示裝置 | |
JP2015021976A (ja) | 光学フィルム用転写体、光学フィルム用転写体の製造方法 | |
JP5606013B2 (ja) | 光学部材及びその製造方法 | |
JP5737625B2 (ja) | ガラスフィルム積層体、ガラスフィルム積層体ロール、カラーフィルタ用画素付ガラスフィルム積層体およびガラスフィルム積層体の製造方法 | |
JP2013035159A (ja) | ガラスフィルム積層体、ガラスフィルム積層体ロール、カラーフィルタ用画素付ガラスフィルム積層体およびガラスフィルム積層体の製造方法 | |
TWI704058B (zh) | 積層光學膜之製造方法 | |
JP5797885B2 (ja) | 光学表示装置の製造システム及びその製造方法 | |
JP2012224063A (ja) | ガラスフィルム積層体、ガラスフィルム積層体ロール、カラーフィルタ用の画素付ガラスフィルム積層体およびガラスフィルム積層体の製造方法 | |
KR20190136954A (ko) | 반사 방지용 편광판, 광학 적층체 및 광학 적층체의 제조 방법 | |
JP5699336B2 (ja) | ガラスフィルム積層体、ガラスフィルム積層体ロール、カラーフィルタ用の画素付ガラスフィルム積層体、及びガラスフィルム積層体の製造方法 | |
JP5610606B2 (ja) | 面光源部材及び面光源部材の製造方法 | |
CN113964168A (zh) | 盖板结构及其制备方法、oled显示模组 | |
JP2013205482A (ja) | カラーフィルタ | |
JP5704453B2 (ja) | ガラスフィルム積層体、ガラスフィルム積層体ロール、カラーフィルタ用の画素付ガラスフィルム積層体およびガラスフィルム積層体の製造方法 | |
JP2012224058A (ja) | ガラスフィルム積層体、ガラスフィルム積層体ロール、カラーフィルタ用の画素付ガラスフィルム積層体およびガラスフィルム積層体の製造方法 | |
WO2020115977A1 (ja) | 位相差層付偏光板およびそれを用いた画像表示装置 | |
JP2013035157A (ja) | ガラスフィルム積層体、ガラスフィルム積層体ロール、カラーフィルタ用画素付ガラスフィルム積層体およびガラスフィルム積層体の製造方法 | |
JP2016141145A (ja) | 光学フィルム、光学フィルム巻取体及び画像表示装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980160024.0 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09846516 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20117030641 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09846516 Country of ref document: EP Kind code of ref document: A1 |