CN107526206A - Polarize board component - Google Patents

Polarize board component Download PDF

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Publication number
CN107526206A
CN107526206A CN201710457759.6A CN201710457759A CN107526206A CN 107526206 A CN107526206 A CN 107526206A CN 201710457759 A CN201710457759 A CN 201710457759A CN 107526206 A CN107526206 A CN 107526206A
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CN
China
Prior art keywords
polarizer
polarization plates
side polarization
adhesive phase
rear side
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710457759.6A
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Chinese (zh)
Inventor
白石贵志
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Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
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Publication date
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of CN107526206A publication Critical patent/CN107526206A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
    • G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)
  • Laminated Bodies (AREA)

Abstract

It is an object of the invention to provide a kind of amount of warpage that can be reduced when being configured under hygrothermal environment and hot environment, reduce because can caused by the polarization board component of inequality is shown caused by warpage.One kind polarization board component, the rear side polarization plates configured included in a surface side of liquid crystal cells, with the face side polarization plates configured in another surface side, the rear side polarization plates have reflection type polarizer, 1st adhesive phase, 1st polarizer, 1st diaphragm, with the 2nd adhesive phase, the face side polarization plates have the 3rd adhesive phase, 2nd polarizer, with the 2nd diaphragm, in the case that poor dF dR obtained by the thickness d R (μm) of the thickness d F (μm) of the 2nd polarizer as the face side polarization plates the 1st polarizers for subtracting the rear side polarization plates are set into Δ d (μm), 10 μm≤Δ d<0 μm, the absorption axiss angulation of the absorption axiss of the 2nd polarizer of the face side polarization plates and the 1st polarizer of the rear side polarization plates is 90 ° ± 1 °.

Description

Polarize board component
Technical field
The present invention relates to the polarization board component that can be used in various optical applications.
Background technology
In view of the image forming mode of liquid crystal display device, polarizer is configured in the both sides of liquid crystal cells.
For example, Patent Document 1 discloses the liquid crystal panel of face side and rear side the configuration polarizer in liquid crystal cells. In addition, Patent Document 2 discloses the optical laminate of face side and the rear side configuration in liquid crystal cells.
For the optical laminate disclosed in the liquid crystal panel and patent document 2 disclosed in above-mentioned patent document 1, taste Specified configuration was pinged in the relation of the polarizing coating of face side and the thickness for the polarizing coating for being configured at rear side, to reduce liquid crystal surface The warpage of plate.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2012-58429 publications
Patent document 2：Japanese Unexamined Patent Publication 2013-37115 publications
The content of the invention
Invent problem to be solved
In the past, the warpage being only conceived under hot environment, as long as controlling it, then the warpage of liquid crystal panel is not into asking Topic.It has been found, however, that：As the thickness of liquid crystal cells is thinning (for example, the thickness for forming the glass substrate of liquid crystal cells is Below 0.5mm), it is inclined caused by the caused slight size changing amount under hygrothermal environment (for example, 60 DEG C, humidity 90%) The stress of vibration plate, it can substantially confirm the warpage of liquid crystal cells.
For the invention disclosed in patent document 1 and 2, according to use diaphragm, the condition such as the structure of polarization plates, due to The warpage of liquid crystal panel under hygrothermal environment, exist liquid crystal panel from touch panel peel off or back light unit come off the problems such as.
In addition, in recent years it has been proposed that the rear side in liquid crystal panel sets diffusion barrier, reflection type polarizer etc..By setting This kind of functional layer is put, the warpage for being arranged at the polarization plates of rear side becomes big, the result is that the warpage of liquid crystal cells becomes big, so that from Touch panel peels off, back light unit is significantly changed the problems such as coming off.
It is therefore an object of the present invention to provide a kind of polarization board component, it can not only suppress the liquid crystal under hot environment The warpage of panel, additionally it is possible to suppress the warpage of the liquid crystal panel under hygrothermal environment.
For solving the method for problem
The present invention includes following aspect.
[1] a kind of polarization board component, included in the rear side polarization plates of a surface side of liquid crystal cells configuration and in another side The face side polarization plates of side configuration,
The rear side polarization plates have reflection type polarizer, the 1st adhesive phase, the 1st polarizer, the 1st diaphragm and 2 adhesive phases,
The face side polarization plates have the 3rd adhesive phase, the 2nd polarizer and the 2nd diaphragm,
Thickness d F (μm) by the 2nd polarizer of the face side polarization plates is subtracted the 1st of the rear side polarization plates In the case that poor dF-dR obtained by the thickness d R (μm) of polarizer is set to Δ d (μm), -5 μm≤Δ d<0 μm,
The absorption axiss of 2nd polarizer of the face side polarization plates and the suction of the 1st polarizer of the rear side polarization plates It is 90 ° ± 1 ° to receive axle angulation.
[2] the polarization board component as described in [1], the thickness of the 1st polarizer is less than 15 μm.
[3] the polarization board component as described in [1] or [2], the absorption axiss of the 1st polarizer of the rear side polarization plates and institute The long side angulation for stating rear side polarization plates is 90 ° ± 1 °.
[4] the polarization board component as any one of [1] to [3], the reflection type polarizer have at least 2 layers thin Film, the refractive anisotrop of at least 2 layer films are different.
[5] a kind of liquid crystal panel, there are liquid crystal cells and a pair of polarization plates in the configuration of its two sides,
The pair of polarization plates are the polarization board components any one of [1]~[4],
The 2nd diaphragm, the 2nd polarizer, the 3rd adhesive phase, liquid crystal cells, the 2nd are sequentially laminated with the liquid crystal panel Adhesive phase, the 1st diaphragm, the 1st polarizer, the 1st adhesive phase and reflection type polarizer.
Invention effect
In accordance with the invention it is possible to when obtaining being exposed to hygrothermal environment and hot environment, the warpage of liquid crystal panel can be reduced Polarization plates component.
Brief description of the drawings
Fig. 1 is the summary sectional view for an embodiment for illustrating the polarization board component of the present invention.
Fig. 2 is the absorption axiss and the outline of the absorption axiss angulation of rear side polarization plates for illustrating face side polarization plates Figure.
Fig. 3 is the figure for the measure for illustrating amount of warpage.
Description of reference numerals
10 rear side polarization plates
11 reflection type polarizers
12 the 1st adhesive phases
13 the 1st polarizers
14 the 1st diaphragms
15 the 2nd adhesive phases
20 face side polarization plates
21 the 3rd adhesive phases
22 the 2nd polarizers
23 the 2nd diaphragms
30 liquid crystal cells
40 glass panels
50 measuring points
60 polarization plates
70 glass plates
Embodiment
Hereinafter, polarization board component involved in the present invention is illustrated using suitable figure, but the invention is not restricted to These embodiments.
One kind polarization board component, included in the rear side polarization plates of a surface side of liquid crystal cells configuration and in another surface side The face side polarization plates of configuration,
The rear side polarization plates have reflection type polarizer, the 1st adhesive phase, the 1st polarizer, the 1st diaphragm and 2 adhesive phases,
The face side polarization plates have the 3rd adhesive phase, the 2nd polarizer and the 2nd diaphragm,
Thickness d F (μm) by the 2nd polarizer of the face side polarization plates is subtracted the 1st of the rear side polarization plates In the case that poor dF-dR obtained by the thickness d R (μm) of polarizer is set to Δ d (μm), -5 μm≤Δ d<0 μm,
The absorption axiss of 2nd polarizer of the face side polarization plates and the suction of the 1st polarizer of the rear side polarization plates It is 90 ° ± 1 ° to receive axle angulation.
According to the liquid crystal panel for the polarization board component for possessing the present invention, it can obtain suppressing liquid crystal panel from touch surface Plate peels off or back light unit comes off and shows the small display device of inequality.
As shown in figure 1, the polarization board component of the present invention is included in the rear side polarization that a surface side of liquid crystal cells 30 configures Plate 10 and the face side polarization plates 20 in the configuration of another surface side.Rear side polarization plates 10 are viscous with reflection type polarizer the 11, the 1st Mixture layer 12, the 1st polarizer 13, the 1st diaphragm 14 and the 2nd adhesive phase 15.In one embodiment, rear side polarizes Plate 10 can have other layers according to required.
In another embodiment, rear side polarization plates 10 are to be sequentially laminated with reflection type polarizer 11, the 1st adhesive phase 12nd, the polarization plates of the 1st polarizer 13, the 1st diaphragm 14 and the 2nd adhesive phase 15.In addition, rear side polarization plates 10 can be with There is diaphragm (not shown) between the 1st adhesive phase 12 and the 1st polarizer 13.That is, rear side polarization plates 10 can also be The two sides of 1st polarizer 13 has diaphragm.
Face side polarization plates 20 have the 3rd adhesive phase 21, the 2nd polarizer 22 and the 2nd diaphragm 23.Face side polarizes Plate 20 can have other layers according to required.
In another embodiment, face side polarization plates 20 be sequentially laminated with the 3rd adhesive phase 21, the 2nd polarizer 22, With the polarization plates of the 2nd diaphragm 23.In addition, face side polarization plates 20 can also the 3rd adhesive phase 21 and the 2nd polarizer 22 it Between there is diaphragm (not shown).That is, face side polarization plates 20 can also have diaphragm on the two sides of the 2nd polarizer 22.
The rear side polarization plates of the present invention for example fit in the face of the face opposite side with observation side of liquid crystal cells.One In individual embodiment, rear side polarization plates can also by the light source with being arranged at liquid crystal panel, such as backlight it is adjacent in a manner of Fit in liquid crystal cells.In addition it is also possible to overleaf the narrow double faced adhesive tape of the edge stickup width of polarization plates brings stickup backlight list Member.
On the other hand, face side polarization plates of the invention fit in the face of the observation side of such as liquid crystal cells.
, can be in the polarization board component for example shown in Fig. 1, i.e. rear side polarization plates 10 although being not shown in Fig. 1 The layer beyond above-mentioned layer is set with face side polarization plates 20.In addition, polarizer 13,22 generally pass through with diaphragm 14,23 it is Nian Jie Oxidant layer and be bonded.
For the polarization board component of the present invention, as shown in figure 1, the thickness of the 2nd polarizer of face side polarization plates 20 is set For dF (μm), the thickness of the 1st polarizer of rear side polarization plates 10 is set to dR (μm), by by the 2nd of face side polarization plates 20 the The thickness d F of polarizer subtract the thickness d R of the 1st polarizer of rear side polarization plates 10 obtained by poor dF-dR be set to Δ d's (μm) In the case of, there is -10 μm≤Δ d<0 μm of relation, such as with -8 μm≤Δ d<0 μm of relation, in some embodiments, With -5 μm≤Δ d<0 μm of relation, preferably there are -5 μm<Δd<0 μm of relation.
It is above range by making the i.e. Δ d of difference (μm) as obtained by thickness d F subtracts thickness d R, so as to face side polarization plates With glass (liquid crystal cells) and the layered product (liquid crystal panel) of rear side polarization plates even in high temperature (for example, 85 DEG C, humidity 5%) In the case of lower long-time exposure, the amount of warpage of layered product is also small.In addition, face side polarization plates and glass and rear side polarization plates Even if layered product be placed under conditions of hygrothermal environment (for example, 60 DEG C, humidity 90%), the warpage of layered product is also suppressed.
Thus, the amount of warpage when layered product for possessing the polarization board component of the present invention configures under hygrothermal environment and hot environment It is small, it is thus regarded that possess humidity resistance and heat resistance, being peeled off from touch panel not under high temperature, high humidity environment, backlight list The problem of coming off of member.In addition, cause because hot environment and hygrothermal environment experiment after warpage and caused by show inequality Reduce.
In addition, there is above-mentioned relation by Δ d (μm), the polarization board component of the present invention can be applied to various each The liquid crystal panel of sample size, thickness.
It should be noted that in this manual, as one of hot environment, 85 DEG C of temperature is illustrated. In the present invention, hot environment also refers to temperature, 0%~20% humidity such as polarization plates exposed to 70 DEG C~95 DEG C In the environment of at least 30~60 minutes.
In addition, one as hygrothermal environment, temperature, the condition of humidity 90% to 60 DEG C illustrate.In the present invention In, hygrothermal environment also refers to be exposed in 50 DEG C~80 DEG C of temperature, 60%~95% humidity extremely such as polarization plates Few 30 minutes~60 minutes environment.
In one embodiment, the thickness d F of the 2nd polarizer of face side polarization plates higher limit is less than 15 μm, more Preferably more than 0.1 μm and less than 13 μm.
In one embodiment, the thickness d R of the 1st polarizer of rear side polarization plates higher limit is less than 15 μm.
Rear side polarization plates have a reflection type polarizer, therefore the thickness of the 1st polarizer is more thin more can realize rear side The slimming of polarization plates.
The measure of each thickness of the polarization board component of the present invention uses known assay method in the technical field to carry out.
In the present invention, the absorption axiss of the 2nd polarizer of face side polarization plates and the suction of the 1st polarizer of rear side polarization plates It is 90 ° ± 1 ° to receive axle angulation, more preferably 90 ° ± 0.5 of scope.
For example, Fig. 2 is the figure of the relation of the absorption axiss of the polarizer of example an embodiment of the invention.In Fig. 2, the back of the body The absorption axiss of 1st polarizer of surface side polarization plates 10 are represented that the axis of homology of the 1st polarizer is represented by 10b by 10a.In addition, the back side The long side of lateral deviation vibration plate is represented by 10c.
On the other hand, in Fig. 2, the absorption axiss of the 2nd polarizer of face side polarization plates 20 are represented by 20a, the 2nd polarizer The axis of homology is represented by 20b.
In the present invention, as described above, angle formed by the absorption axiss 10a of the 1st polarizer and absorption axiss 20a of the 2nd polarizer Spend for 90 ° ± 1 °.The angle can for example be expressed as the angle [alpha] in Fig. 2.
In one embodiment, the absorption axiss of the 1st polarizer of rear side polarization plates and foregoing rear side polarization plates (the 1 polarizer) long side angulation be 90 ° ± 1 °, in another embodiment, above-mentioned angulation be 90 ° ± 0.5 °.
By being set as above range, so as to be difficult to that the 1st adhesive phase and reflection type polarizer occurs under hygrothermal environment Between stripping, obtain the excellent polarization plates of wet heat durability.In addition, it is possible to increase the heat resistance of polarization plates.Furthermore it is possible to enter The thickness of 1st polarizer of one step increase rear side polarization plates.
It should be noted that in the present invention, the absorption axiss of the 2nd polarizer of face side polarization plates are designated as front sometimes The absorption axiss of lateral deviation vibration plate, in addition, the absorption axiss of the 1st polarizer of rear side polarization plates are designated as into rear side polarization plates sometimes Absorption axiss.
In the polarization board component of the present invention, the thickness d F by the 2nd polarizer of face side polarization plates is subtracted into rear side It is -10 μm≤Δ d in the case that poor dF-dR obtained by the thickness d R of 1st polarizer of polarization plates is set to Δ d (μm)<0 μm Relation, it is, for example, -8 μm≤Δ d<0 μm of relation, it is -5 μm≤Δ d in some embodiments<0 μm of relation, so as to example If polarization plates are if exposed under hot conditions, under hygrothermal environment, it can also suppress the warpage of liquid crystal panel.
It should be noted that in the case where the polarization plates of the present invention are exposed into hot conditions, and polarization plates can produce slightly In the case of warpage, for example, reflection type polarizer, the 1st adhesive phase, the 1st polarizer, the 1st diaphragm and the 2nd adhesive phase energy Enough it is integrally formed ground warpage.Similarly, the 3rd adhesive phase, the 2nd polarizer and the 2nd diaphragm can be integrally formed ground warpage.
Therefore, rear side polarization plates of the invention usually can be at least one layer of these interlayers with face side polarization plates Between splitting does not occur.
It should be noted that warpage can occur for any one of rear side polarization plates or face side polarization plates be present, And that warpage can occur simultaneously for rear side polarization plates and face side polarization plates be present.
For above-mentioned warpage, in the present invention it is possible to evaluated by determining amount of warpage etc..For example, the amount of warpage can To be evaluated by determining the amount of warpage under wet heat condition, can also be evaluated by determining the amount of warpage under hot conditions.
For example, in the case of determining the amount of warpage under wet heat condition, by the 3rd adhesive phase of face side polarization plates and the back side 2nd adhesive phase of lateral deviation vibration plate fits in the front and back of glass panel, is stood in the environment of 60 DEG C, humidity 90% After 250 hours, glass panel is set so that rear side polarization plates float relatively high in lower section, the horizontal plane determined from measure platform Degree.
For example, in the case of determining the amount of warpage under the condition of high temperature, by the 3rd adhesive phase of face side polarization plates and the back side 2nd adhesive phase of lateral deviation vibration plate fits in the front and back of glass panel, and 250 are stood in the environment of 85 DEG C, humidity 5% After hour, glass panel is set so that rear side polarization plates are in lower section, determines the relative altitude floated from the horizontal plane of measure platform.
[reflection type polarizer]
Reflection type polarizer is also referred to as brightness and improves film, using with the emergent light for coming from light source (backlight) is separated into Penetrate polarised light and the polarization conversion device of the function of polarization by reflection light or scattering polarization light.As described above, by with defined pass System's configuration reflection type polarizer and polarizer, can utilize the retroreflection light (Kaesa again as polarization by reflection light or scattering polarization light Light), improve from polarizer project rectilinearly polarized light outgoing efficiency.Such as reflection type polarizer contact the 1st adhesive phase and Stacking.
Reflection type polarizer for example can be anisotropic emission polarizer.One of anisotropic emission polarizer is The anisotropy of the rectilinearly polarized light for penetrating a direction of vibration and the rectilinearly polarized light for reflecting another direction of vibration is multiple thin Film, its concrete example are the DBEF (Japanese Unexamined Patent Publication 4-268505 publications etc.) of 3M company systems.This kind of reflection type polarizer be by Carried out stretching the reflection type polarizer formed by the different multi-layer laminate that at least 2 layer films are formed of refractive anisotrop. Therefore, this kind of reflection type polarizer has at least 2 layer films, the refractive anisotrop difference of at least 2 layer films of drawn.
Another example of anisotropic emission polarizer is the complex of the plate of cholesteric liquid crystal layers and λ/4, and its concrete example is day The PCF (Japanese Unexamined Patent Publication 11-231130 publications etc.) of eastern electrician's Co. Ltd. system.Another example of anisotropic emission polarizer It is reflecting grating polarizer, its concrete example is to implement microfabrication to metal so as to also project polarization by reflection light in visible region Metal gate reflecting polarizer (No. 6288840 specifications of U.S. Patent No. etc.), metal particle made an addition in polymer substrate And film (Japanese Unexamined Patent Publication 8-184701 publications) obtained by stretching.
On the face of the side opposite with the 1st adhesive phase of reflection type polarizer, it can set such as hard conating, antiglare layer, light Diffusion layer, have 1/4 wavelength phase difference value phase separation layer as optical layer.By forming optical layer, it is possible to increase with The adaptation of backlight adhesive tape, the uniformity of display image.The thickness of reflection type polarizer can be 5~100 μm or so, but from drop From the viewpoint of the low warpage as liquid crystal panel, preferably 10~40 μm, more preferably 10~30 μm.
In the polarization board component of the present invention, table can be implemented to the surface of the 1st adhesive phase side of reflection type polarizer Face activation.Surface activation processing is carried out before being bonded of reflection type polarizer and the 1st adhesive phase.Thus, It is difficult to the stripping between the 1st adhesive phase and reflection type polarizer occurs under hygrothermal environment, it is excellent obtains wet heat durability Polarization plates.
Surface activation processing can be the hydrophilicity-imparting treatment on surface, can be that dry process can also be wet processed. As dry process, for example, the discharge process as sided corona treatment, corona treatment, glow discharge process can be enumerated；Fire Flame processing；Ozone processing；The processing of UV ozone；Ionization activity Irradiation etc. as UV treatment, electron beam treatment.Make For wet processed, such as it can illustrate and be handled using the supersound process of solvent as water, acetone, alkali process, anchor coat etc.. These processing can be carried out individually, can also combine two or more progress.
Wherein, go out from the viewpoint of the stripping inhibition of the reflection type polarizer under hygrothermal environment and the productivity ratio of polarization plates Hair, surface activation processing are preferably sided corona treatment and/or corona treatment.Handled by these surface activations, even if Thickness of thin in reflection type polarizer, in the case of being, for example, less than 30 μm, it also can effectively suppress the 1st under hygrothermal environment Stripping between adhesive phase and reflection type polarizer.It should be noted that can also be to the brightness reflective of the 1st adhesive phase Implement surface activation processing in the lump in the surface of polarization plates side.
[the 1st adhesive phase]
1st adhesive phase is the layer between the 1st polarizer and reflection type polarizer.1st adhesive phase is typically Polarizer is directly laminated in a manner of the 1st polarizer is contacted with the 1st adhesive phase.
1st adhesive phase can be by by acrylic acid series, rubber series, polyurethane series, ester system, silicon-type, polyvinylether system Such resin is formed as the adhesive composition of principal component.Wherein, by the transparency, weatherability, heat resistance etc. it is excellent third The adhesive composition of polymer is suitable based on olefin(e) acid system resin.Adhesive composition can also be penetrated for active-energy Line curing type, thermohardening type.
As aforesaid propylene acid system base polymer, for example, suitable using such as (methyl) butyl acrylate, (methyl) propylene Acetoacetic ester, (methyl) Isooctyl acrylate monomer, (methyl) acrylic ester basis is poly- as (methyl) 2-EHA Compound is base polymer using copolymerization obtained by these (methyl) acrylate of more than two kinds.It is preferred that polar monomer is set to exist It is copolymerized in base polymer.As polar monomer, for example, can enumerate such as (methyl) acrylic acid, (methyl) acrylic acid 2- hydroxyls third Ester, (methyl) Hydroxyethyl Acrylate, (methyl) acrylamide, (methyl) acrylic acid N, N- dimethylamino ethyl ester, (methyl) The such monomer with carboxyl, hydroxyl, amide groups, amino, epoxy radicals etc. of glycidyl acrylate.
Adhesive composition generally also contains crosslinking agent., can example as crosslinking agent：Metal ion more than divalent, and use In forming carboxylic metallic salt between carboxyl；Polyamine compounds, and for forming amido link between carboxyl；Polycyclic aoxidizes Compound and polyalcohol, and for forming ester bond between carboxyl；Polyisocyanate compound, and for the shape between carboxyl Into amido link.Wherein, preferred polyisocyanate compound.
Active energy ray curable adhesive composition refers to have by the active energy as ultraviolet, electron beam Measure the irradiation of ray and the property that solidifies, and with active energy beam pre-irradiation also with cohesive so as to closely sealed In adherend such as films and can be solidified by the irradiation of active energy beam to adjust the adhesive group of the property of closing force Compound.Active energy ray curable adhesive composition is preferably ultraviolet hardening.Active energy ray curable bonds Agent composition is in addition to base polymer, crosslinking agent, also containing active energy beam polymerizable compound.In addition, according to need Will, also containing Photoepolymerizationinitiater initiater, sensitising agent etc..
Adhesive composition, which can include, to be used to assign light scattering particulate；Microballon；Resin beyond base polymer； Tackifier；Filler；Antioxidant；Ultra-violet absorber；Pigment；The additives such as colouring agent.
1st adhesive phase can be by the way that the organic solvent diluting liquid of above-mentioned adhesive composition to be coated on base material and do It is dry and formed.Base material can be polarizer, reflection type polarizer, distance piece etc..Use active energy ray curable adhesive , can be by irradiating active energy beam to the adhesive phase of formation to obtain required solidfied material in the case of composition.
It is preferred that the 1st adhesive phase shows 0.15~1.2MPa storage modulus within the temperature range of 23~80 DEG C.By This, can suppress to be easy to the contraction of polarizer and caused change in size under high temperature and hygrothermal environment, improve polarization plates Durability.In addition, it is placed in height in the liquid crystal panel (for example, liquid crystal panel for middle-size and small-size mobile terminal) for carrying polarization plates In the case of under gentle hygrothermal environment, because the movement of polarization plates is suppressed, so as to improve the reliability of liquid crystal panel.
" storage modulus that 0.15~1.2MPa is shown within the temperature range of 23~80 DEG C " refers to：In appointing for the scope At a temperature of meaning, storage modulus is the value in above range.Storage modulus is gradually reduced generally as temperature raises, as long as therefore Storage modulus at 23 DEG C and 80 DEG C is each fallen within above range, then can be considered as and above-mentioned model is shown at a temperature of the scope Enclose interior storage modulus.The storage modulus of 1st adhesive phase can use commercially available determination of viscoelasticity device, for example be mentioned below Embodiment shown in REOMETRIC company systems determination of viscoelasticity device " DYNAMIC ANALYZER RDA II " determine.
As the method for storage modulus to be adjusted to above range, can enumerate comprising base polymer and crosslinking agent Adhesive composition in further addition oligomer, specifically the oligomer of urethane acrylate system obtains activity Energy ray-curable adhesive composition (being preferably ultraviolet-curing adhesive composition).More preferably irradiation activity Energy-ray makes the adhesive phase moderately solidify.
The thickness of 1st adhesive phase can be less than 30 μm.Preferably less than 25 μm, particularly preferably less than 20 μm, especially It is preferably less than 15 μm.By making the thickness of the 1st adhesive phase be above range, good processability can be kept, and Suppress the change in size of polarization plates.It should be noted that the thickness of the 1st adhesive phase can using so that above-mentioned layer thickness as regulation The mode of scope properly adjusted.
[polarizer]
Polarizer be with absorb the rectilinearly polarized light with the vibration plane parallel with its absorption axis, transmit with absorption The absorption-type polarizer of the property of the rectilinearly polarized light of orthogonal (parallel with the axis of homology) vibration plane of axle.The polarization plates of the present invention Then can be identical polarizer as long as the 1st polarizer used in component and the 2nd polarizer thickness have defined relation, Can also be each different polarizers.For example, can be suitably using making dichroism pigment on polyvinyl alcohol resin film Polarizing coating obtained by gas absorption quantity.Polarizer can for example be manufactured by the method comprising following process：By polyethenol series The process that resin film carries out uniaxial tension；By the way that polyvinyl alcohol resin film is adsorbed into dichroism color with dichroism pigment dyeing The process of element；The process that the polyvinyl alcohol resin film for having adsorbed dichroism pigment is handled with boric acid aqueous solution；With with The process that the laggard water-filling of boric acid aqueous solution processing is washed.
As polyvinyl alcohol resin, can use make resin obtained by polyvinyl acetate system resin saponification.As poly- Vinyl acetate system resin, in addition to the homopolymer of vinyl acetate is polyvinyl acetate, can also enumerate vinyl acetate with Copolymer of copolymerizable other monomers etc..Unsaturated carboxylic acid can be included with the example of the other monomers of vinyl acetate copolymerization Class, olefines, ethene ethers, unsaturated sulfonic acid class and acrylic amide with ammonium etc..
The saponification degree of polyvinyl alcohol resin is usually 85~100mol% or so, preferably more than 98mol%.Polyethylene Alcohol system resin can also be modified, it is, for example, possible to use polyvinyl formal or polyvinyl acetal for being modified with aldehydes etc.. The average degree of polymerization of polyvinyl alcohol resin is usually 1000~10000 or so, and preferably 1500~5000 or so.Polyvinyl alcohol It is that the average degree of polymerization of resin can be obtained according to JIS K 6726.
By above-mentioned polyvinyl alcohol resin be filmed obtained by film, can make as the former material film of polarizer (polarizing coating) With.The method that polyvinyl alcohol resin is filmed is not particularly limited, known method can be used.Polyethenol series former material The thickness of film is not particularly limited.
For example, the thickness d F of the 2nd polarizer of face side polarization plates higher limit is less than 15 μm, more preferably 0.1 μm Above and less than 10 μm.In one embodiment, the thickness d R of the 1st polarizer of rear side polarization plates higher limit is 15 μm Below.
For example, according to the manufacture method of polarizer, the one side in base material film is enumerated with polarization as an embodiment The polarizability stacked film of piece (layer).In the polarizability stacked film, the thickness of polarizer (layer) is in the same manner as above range, front The thickness d F of 2nd polarizer of lateral deviation vibration plate higher limit is less than 15 μm, more preferably more than 0.1 μm and less than 10 μm. In one embodiment, the thickness d R of the 1st polarizer of rear side polarization plates higher limit is less than 15 μm.
For example, the polarizer (layer) in polarizability stacked film can be formed by the following method：In base material film at least One face is coated with the coating fluid containing resin, such as coating fluid containing polyvinyl alcohol resin, dries the coating fluid.
For polarizer, by being coating fluid of the coating containing resin the polarizer that is formed, it is hereby achieved that film Polarizer.
For example, the thickness d F and/or dR of the polarizer that coating is formed containing the coating fluid of resin can be more than 0.1 μm And less than 15 μm, such as can be more than 0.1 μm and less than 10 μm.
By making the thickness of polarizer within the above range, thus, it is possible to further reduce the amount of warpage under hygrothermal environment With the amount of warpage under hot environment.
Polarizability stacked film is to prepare base material film, is coated with base material film and contains the molten of the resins such as polyvinyl alcohol resin Liquid, make solvent seasoning so as to form film obtained by resin bed on base material film.
, can in order to improve the adaptation of base material film and the polarizer containing polyvinyl alcohol resin before applied coating solution At least to implement sided corona treatment, corona treatment, flame (flame) processing on the surface of the base material film of polarizer side to be formed Deng.Also, the reasons why identical is based on, can also be pressed from both sides on base material film every priming coat etc. to form polarizer.
As base material film, it can be made up of thermoplastic resin, wherein it is preferred that by the transparency, mechanical strength, heat endurance, drawing The excellent thermoplastic resin such as stretching property is formed.It is, for example, possible to use the resin film such as PET, PP.
From viewpoints such as intensity, treatability, the thickness of base material film is usually 1~500 μm, preferably 1~300 μm, more Preferably 5~200 μm, more preferably 5~150 μm.
The thickness of priming coat is preferably 0.05~1 μm or so, more preferably 0.1~0.4 μm.By the thickness for making priming coat Within the above range, the closing force of base material film and polarizer can further be improved.
In addition, the example of the material of priming coat can make tree obtained by hydrophilic resin crosslinking for what is used in polarizer Fat.In some embodiments, priming coat includes polyvinyl alcohol resin.
The uniaxial tension of polyvinyl alcohol resin film simultaneously or can contaminate before the dyeing of dichroism pigment, with dyeing Carried out after color.In the case of carrying out uniaxial tension after dyeing, the uniaxial tension can be in boric acid before processing or boric acid processing Carry out.Alternatively, it is also possible to carry out uniaxial tension in these multiple stages.
In uniaxial tension, hot-rolling can also be used with single shaft between the different roller of peripheral speed with uniaxial tension Stretching.Also, uniaxial tension can be the dry type stretching stretched in an atmosphere, or make polyethylene using solvent The wet tensile stretched in the state of the swelling of alcohol resin film.Stretching ratio is usually 3~8 times or so.
As the method dyed with dichroism pigment to polyvinyl alcohol resin film, for example, using by the film immersion Method in the aqueous solution containing dichroism pigment.As dichroism pigment, iodine, dichroic organic dye are used.Need Bright, preferably polyvinyl alcohol resin film implements the impregnation in water in dyeing before processing.
Handled as using the dyeing of iodine, be typically employed in the aqueous solution containing iodine and KI and impregnate polyethenol series The method of resin film.The content of iodine in the aqueous solution can be 0.01~1 parts by weight or so relative to 100 parts by weight water.Iodine The content of change potassium can be 0.5~20 parts by weight or so relative to 100 parts by weight water.In addition, the temperature of the aqueous solution can be 20~40 DEG C or so.On the other hand, handled as using the dyeing of dichroic organic dye, be typically employed in has containing dichroism The method of polyvinyl alcohol resin film is impregnated in the aqueous solution of engine dyeing material.The aqueous solution containing dichroic organic dye can contain The inorganic salts such as sodium sulphate are as dyeing assistant.The content of dichroic organic dye in the aqueous solution is relative to 100 parts by weight water Can be 1 × 10-4~10 parts by weight or so.The temperature of the aqueous solution can be 20~80 DEG C or so.
Handled as using the boric acid after the dyeing of dichroism pigment, generally use is by dyed polyvinyl alcohol resin Method of the film immersion in boracic aqueous acid.In the case of using iodine as dichroism pigment, the boracic aqueous acid is preferred Contain KI.
The amount of boric acid in boracic aqueous acid can be 2~15 parts by weight or so relative to 100 parts by weight water.This is water-soluble The amount of KI in liquid can be 0.1~15 parts by weight or so relative to 100 parts by weight water.The temperature of the aqueous solution can be More than 50 DEG C, such as 50~85 DEG C.
Polyvinyl alcohol resin film after boric acid processing generally carries out washing process.Washing process for example can be by will be through The polyvinyl alcohol resin film immersion of boric acid processing is carried out in water.Washing process can also be entered with the water containing KI OK.The temperature of water in washing process is usually 5~40 DEG C or so.
Implement drying process after washing, obtain polarizer.Drying process can use air drier, Far-infrared Heating Device and carry out.The thickness of polarizer is preferably less than 15 μm, more preferably less than 10 μm.The thickness of polarizer be usually 4 μm with On.In one embodiment, the thickness d R of the 1st polarizer of rear side polarization plates is less than 15 μm.In an embodiment In, the thickness d F of the 2nd polarizer of face side polarization plates is less than 15 μm, more preferably more than 0.1 μm and less than 13 μm.
It should be noted that the thickness of polarizer can be carried out by a manner of not departing from the range of the scope of the present invention Suitable adjustment.
[diaphragm]
1st diaphragm is the film being laminated on the face of the side opposite with the 1st adhesive phase of the 1st polarizer.2nd diaphragm is The film being laminated on the face of the side opposite with the 3rd adhesive phase of the 2nd polarizer.1st diaphragm and the 2nd diaphragm can be identical Film, or different films.
Diaphragm can be the film for including following resin：(preferably optically transparent) thermoplastic resin with translucency Fat, such as such as chain polyolefin-based resins (polypropylene-based resin), cyclic polyolefin hydrocarbon system resin (norbornene resin etc.) Such polyolefin-based resins；The cellulose-based resin as cellulose triacetate, cellulose diacetate；Such as poly- terephthaldehyde Polyester based resin as sour glycol ester, polybutylene terephthalate (PBT)；Polycarbonate-based resin；Such as (methyl) acrylic acid It is acrylic resin as resin；Polystyrene resin；Polyvinyl chloride resin；Acronitrile-butadiene-styrene It is resin；Acrylonitrile phenylethylene resin series；Polyvinyl acetate system resin；Polyvinylidene chloride resin；Polyamide-based tree Fat；Polyacetals system resin；Noryl system resin；Polysulfones system resin；Polyether sulfone system resin；Polyarylate system resin；Polyamide Imide series resin；Polyimides system resins etc..Wherein, it is especially excellent preferably using polyolefin-based resins or acrylic resin Choosing uses cyclic polyolefin hydrocarbon system resin.
As chain polyolefin-based resins, except the homopolymerization of the chain olefin as polyvinyl resin, acrylic resin Beyond the region of objective existence, the copolymer for including chain olefin of more than two kinds can also be enumerated.
Cyclic polyolefin hydrocarbon system resin is the general name of resin for polymerizeing to obtain using cyclic olefin as polymerized unit.Cyclic polyolefin The concrete example of hydrocarbon system resin can enumerate the open loop (co) polymer of cyclic olefin, the addition polymer of cyclic olefin, cyclic olefin With the copolymer (being typically random copolymer) of the chain olefin as ethene, propylene and by above-mentioned substance insatiable hunger With carboxylic acid or derivatives thereof it is modified obtained by graft polymers and their hydride etc..Wherein, it is preferably used as ring-type Alkene uses the norbornene resins obtained by norborneol alkene monomer such as ENB, polycyclic norborneol alkene monomer.Excellent In the embodiment of choosing, diaphragm involved in the present invention includes cyclic polyolefin hydrocarbon system resin.
Cellulose-based resin refers to be obtained by raw fibres such as continuous short flannel, wood pulps (broad leaf tree wood pulp, coniferous tree wood pulp) Cellulose hydroxyl hydrogen atom part or all with acetyl group, propiono and/or bytyry substitution obtained by fiber Plain organic acid esters or cellulose mixed organic acid ester.For example, can enumerate the acetic acid esters comprising cellulose, propionic ester, butyrate and The resin of the mixed ester of these esters etc..
As the preferred concrete example of acrylic resin film, the film for including methyl methacrylate system resin can be enumerated.First Base methyl acrylate system resin refers to the polymer of the methyl methacrylate units containing more than 50 weight %.Methacrylic acid The content of methyl esters unit is preferably more than 70 weight %, or 100 weight %.Methyl methacrylate units are 100 weights Amount % polymer is that methyl methacrylate is polymerized alone into obtained imperplex.
The methyl methacrylate system resin generally can be by making single official using methyl methacrylate as principal component The chain-transferring agent that energy monomer and the polyfunctional monomer used as needed use in radical polymerization initiator and as needed Lower polymerization coexists and obtains.
As can be with the monofunctional monomer of methyl methacrylate copolymer, for example, EMA, methyl can be enumerated Butyl acrylate, cyclohexyl methacrylate, phenyl methacrylate, benzyl methacrylate, methacrylic acid 2- ethyls Methyl acrylic ester beyond the methyl methacrylates such as own ester and 2-hydroxyethyl methacrylate；Methyl acrylate, third Olefin(e) acid ethyl ester, butyl acrylate, cyclohexyl acrylate, phenyl acrylate, benzyl acrylate, 2-EHA and The esters of acrylic acids such as acrylic acid 2- hydroxy methacrylates；2- (hydroxymethyl) methyl acrylate, 3- (hydroxyethyl) methyl acrylate, 2- The hydroxy acrylic acid esters such as (hydroxymethyl) ethyl acrylate and 2- (hydroxymethyl) butyl acrylate；Methacrylic acid and third The unsaturated acids such as olefin(e) acid；The halogenated styrenes class such as chlorostyrene and bromstyrol；Vinyltoluene and α-methylstyrene etc. Substituted phenylethylene class；The unsaturated nitrile such as acrylonitrile and methacrylonitrile；The unsaturated acids anhydride such as maleic anhydride and citraconic anhydride； And unsaturated acyl imines such as phenyl maleimide and N-cyclohexylmaleimide etc..These monomers each can individually make With two or more use can also be combined.
As can be with the polyfunctional monomer of methyl methacrylate copolymer, for example, ethylene glycol two (methyl) propylene can be enumerated Acid esters, diethylene glycol two (methyl) acrylate, triethylene glycol two (methyl) acrylate, tetraethylene glycol two (methyl) acrylic acid The two of the ethylene glycol such as ester, (methyl) acrylate of nine ethylene glycol two and ten tetraethylene glycols (methyl) acrylate or its oligomer Terminal hydroxyl by acrylic or methacrylic it is Esterification obtained by monomer；Two terminal hydroxyls of propane diols or its oligomer are by propylene Monomer obtained by acid or methacrylated；Neopentyl glycol two (methyl) acrylate, hexylene glycol two (methyl) acrylate, With the hydroxyl of 2 yuan of alcohol such as butanediol two (methyl) acrylate by acrylic or methacrylic it is Esterification obtained by monomer；Bis-phenol A, two terminal hydroxyls of the alkylene oxide adducts of bisphenol-A or their halogen substituents are by acrylic or methacrylic acid esters Monomer obtained by change；The polyalcohol such as trimethylolpropane and pentaerythrite by acrylic or methacrylic it is Esterification obtained by it is single Body and the epoxy radicals of open loop addition glycidyl acrylate or GMA on their terminal hydroxyls Obtained by monomer；In binary acid such as butanedioic acid, adipic acid, terephthalic acid (TPA), phthalic acid, their halogen substituents and The epoxy of the upper open loop addition glycidyl acrylate such as their alkylene oxide adducts or GMA Monomer obtained by base；(methyl) benzyl acrylate；With the biaryl compound such as divinylbenzene etc..Wherein, preferably using second Diol dimethacrylate, tetraethylene glycol dimethylacrylate and neopentylglycol dimethacrylate.
Methyl methacrylate system resin can be to be entered by carrying out the reaction between functional group possessed by the resin The modified modified methacrylic acid methyl esters system resin of row.As the reaction, for example, the carbomethoxy and 2- of methyl acrylate can be enumerated The carboxyl of separating methanol condensation reaction and acrylic acid and 2- (hydroxyls in the macromolecular chain of the hydroxyl of (hydroxymethyl) methyl acrylate Methyl) methyl acrylate hydroxyl macromolecular chain in dehydration condensation.
It is also useful the phase difference value of diaphragm to be controlled to be suitable for the value of liquid crystal panel.For example, switch in plane (IPS) preferably it is essentially zero film using phase difference value in the liquid crystal panel of pattern.Phase difference value is essentially zero to refer to ripple Phase difference value is below 10nm in face during long 590nm, and the absolute value of thickness direction phase difference value during wavelength 590nm is 10nm Hereinafter, the absolute value of thickness direction phase difference value during 480~750nm of wavelength is below 15nm.
According to the pattern of liquid crystal panel, diaphragm is stretched and/or shrinks processing, suitable phase can also be assigned Difference.
The thickness of diaphragm can be 1~30 μm or so, from the viewpoints such as intensity, treatability, preferably 5~25 μm, More preferably 5~20 μm.As long as the thickness in the range of being somebody's turn to do, then can mechanically protect polarizer, if exposed to damp and hot ring Polarizer does not also shrink under border, keeps stable optical characteristics.It should be noted that the thickness of diaphragm can be with so that above-mentioned layer Between thickness be that the mode of defined scope is properly adjusted.
Diaphragm can fit in polarizer by bond layer.As the bonding agent for forming bond layer, can use Water system bonding agent or active energy ray-curable bonding agent.
As water system bonding agent, the bonding agent comprising the polyvinyl alcohol resin aqueous solution can be enumerated, water system two-component-type gathers Urethane system emulsion adhesive etc..Wherein, the water system bonding agent comprising the polyvinyl alcohol resin aqueous solution is suitably used.As poly- Vinyl alcohol resin, except being that vinyl alcohol obtained by polyvinyl acetate progress saponification process is equal by the homopolymer of vinyl acetate Outside polymers, it can also use and vinyl acetate and the copolymer for the other monomers that can be copolymerized with it are subjected to saponification process and obtained Polyvinyl alcohol based copolymer or their hydroxyl modified polyvinylalcohol based polymer etc. obtained by partially modified.Water system is glued Connect agent can include aldehyde compound, epoxide, melamine based compound, methylol compound, isocyanate compound, The crosslinking agents such as amines, multivalent metal salt.
In the case of using water system bonding agent, after preferably polarizer is bonded with diaphragm, in order to remove water system bonding agent In contained water and implement drying process.Carried out after drying process, such as at a temperature of 20~45 DEG C or so can be arranged on ripe The curing step of change.
Above-mentioned active energy ray-curable bonding agent refers to viscous and what is solidified by irradiating ultraviolet isoreactivity energy-ray Agent is connect, for example, the curability bonding agent comprising polymerizable compound and Photoepolymerizationinitiater initiater can be enumerated, comprising light reactive resin Curability bonding agent, curability bonding agent comprising resin glue and photoreactivity crosslinking agent etc..As polymerism chemical combination Thing, it can enumerate as photo-curable epoxy monomer, light-curable acrylic system monomer, photo-curable polyurethane series monomer Photopolymerization monomer, the oligomer from photopolymerization monomer.As Photoepolymerizationinitiater initiater, can enumerate comprising by irradiating such as Active energy beam as ultraviolet and produce as Neutral radical, radical anion, radical cation living The initiator of the material of property material.Glued as the active energy ray-curable comprising polymerizable compound and Photoepolymerizationinitiater initiater Connecing agent, it is preferable to use the active energy ray-curable for including photo-curable epoxy monomer and light cationic polymerization initiator Property bonding agent.In this manual, existing for example will be viscous and what is solidified by irradiating the active energy beam as ultraviolet Connect the situation that agent is referred to as ultra-violet solidified bonding agent.
In the case of using active energy ray-curable bonding agent, after polarizer is bonded with diaphragm, according to Need that process is dried, then solidified by irradiating active energy beam to enter enforcement active energy ray-curable bonding agent Curing process.The light source of active energy beam is not particularly limited, and has the purple of luminous distribution preferably below wavelength 400nm Outside line, specifically, low pressure mercury lamp, medium pressure mercury lamp, high-pressure sodium lamp, ultrahigh pressure mercury lamp, chemical lamp, black light lamp, micro- can be used Ripple excites mercury lamp, metal halide lamp etc..
When polarizer is bonded with diaphragm, soap can be implemented at least one binding face of polarizer and diaphragm Change processing, sided corona treatment, corona treatment etc..
[the 2nd and the 3rd adhesive phase]
As the adhesive for forming the 2nd adhesive phase and the 3rd adhesive phase, suitably selected known adhesive is Can, if polarization plates exposed such as hot environment, hygrothermal environment or repeatedly under high temperature and environment low temperature, have not The cementability of the degree of the peeling-off grade of meeting.Specifically, can enumerate acrylic adhesive, silicon-type adhesive, Elastomeric adhesive etc., from the viewpoint of the transparency, weatherability, heat resistance, processability, particularly preferred acrylic acid series bonding Agent.
In addition, the 1st adhesive phase and the 2nd adhesive phase and/or the 3rd adhesive phase can use adhesive of the same race, Different types of adhesive can be used.
In a preferred embodiment, the 2nd adhesive phase and the 3rd adhesive phase are formed by acrylic adhesive.
In adhesive, as needed, can also suitably coordinate tackifier, plasticizer, glass fibre, glass microballoon, Metal dust, the filler comprising other inorganic powders etc., pigment, colouring agent, filler, antioxidant, ultra-violet absorber, The various additives such as antistatic additive, silane coupler.
Adhesive phase is generally by the way that the solution coating of adhesive on releasing sheet and is dried to be formed.It is being stripped Coating on sheet material can use rolling method, spin-coating method, silk screen rubbing method, jetting type such as reverse coating, intaglio plate coating to apply Cloth method, infusion process, spraying process etc..The method of the releasing sheet of adhesive phase by being transferred etc. is set to be utilized. The thickness of adhesive phase is usually 3~30 μm or so, preferably 10~30 μm, more preferably 10~25 μm.Preferably implementing In mode, the 2nd adhesive phase, the 3rd adhesive phase are by that with above-mentioned thickness, can suppress the destruction of polarization plates, be assembled in When in liquid crystal display device, light leak occurs for the end that can suppress liquid crystal panel.It should be noted that the 2nd adhesive phase, the 3rd The thickness of adhesive phase can by so that above-mentioned layer thickness in defined scope in a manner of properly adjusted.
2nd adhesive phase, 80 DEG C of the 3rd adhesive phase when storage modulus be preferably more than 0.025MPa, more preferably More than 0.07MPa.When the storage modulus of adhesive phase is less than 0.025MPa, it is possible to create the 2nd adhesive phase, the 3rd adhesive phase Cohesion destroy, when cohesion destroys notable, harmful effect not only is produced to the outward appearances of polarization plates, is being assembled in liquid crystal display device When middle, light leak occurs in the end of liquid crystal panel, also has harmful effect to display.Preferably the 2nd adhesive phase, the 3rd bonding Storage modulus at 80 DEG C of oxidant layer is below 1.1MPa, preferably below 0.9MPa.The energy storage mould of adhesive phase at 80 DEG C When amount is more than 1.1MPa, for the 2nd adhesive phase, the 3rd adhesive phase and glass or panel, resistance to heat durability deterioration, Interlayer is easy to produce bubble.
Before the 2nd adhesive phase, the 3rd adhesive phase are fitted in into other components, in order to protect its surface to set Put distance piece.For example, using implementing use on the film comprising transparent resin as polyethylene terephthalate Distance piece obtained by the processing of the releasing agents such as silicon-type.
[manufacture methods of rear side polarization plates]
The rear side polarization plates of the present invention for example implement table by the surface of the 1st adhesive phase side to reflection type polarizer The process of face activation and the process that the 1st adhesive phase is laminated on the above-mentioned surface for implementing surface activation processing And make.
In addition, the rear side polarization plates of the present invention include is bonded the 1st for example in the one side of polarizer by bond layer Diaphragm, the surface layer in the side opposite with the 1st polarizer of the 1st diaphragm are folded the 2nd adhesive phase, protected in the 1st polarizer and the 1st The face of the opposite side of cuticula is bonded the 1st adhesive phase, the surface layer in the side opposite with the 1st polarizer of the 1st adhesive phase folds reflection-type Polarization plates.By these processes, the rear side polarization plates of the present invention are obtained.It should be noted that can be in the 2nd adhesive phase Outer surface temporarily sets distance piece, can also be to the binding face implementation surface-active with reflection type polarizer of the 1st adhesive phase Change is handled.
Can be that sheet material is bonded method by the method that reflection type polarizer fits in the 1st adhesive phase, or such as Japan The compound fitting method of sheet material-roller described in JP 2004-262071 publications.Furthermore it is possible to be produced as long size shape, and need In the case of measuring greatly, also using roll-to-roll formula applying method.
Thus, the manufacture method of rear side polarization plates of the invention can be made by known method in the technical field Make.
[manufacture methods of face side polarization plates]
The manufacture method of the rear side polarization plates of the present invention can be made by known method in the technical field.Example Such as, by the manufacture method identical process with above-mentioned rear side polarization plates, face side polarization plates can be obtained.
[liquid crystal panel]
Polarization board component involved in the present invention is preferably applied to liquid crystal panel.Liquid crystal panel includes liquid crystal cells and patch Together in the polarization plates involved in the present invention on its surface.The fitting that rear side polarization plates fit in liquid crystal cells can be viscous by the 2nd Mixture layer and realize.The polarization plates of rear side polarization plates involved in the present invention usually as the backlight side for being configured at liquid crystal cells Use.
On the other hand, face side polarization plates can fit in liquid crystal cells by the 3rd adhesive phase.It is involved in the present invention just Surface side polarization plates use usually as the polarization plates for the observation side for being configured at liquid crystal cells.
In one embodiment, there is provided a kind of liquid crystal panel, a pair for having liquid crystal cells and being configured on its two sides are inclined Vibration plate,
Foregoing a pair of polarization plates are above-mentioned polarization board components,
The 2nd diaphragm, the 2nd polarizer, the 3rd adhesive phase, liquid crystal cells, the 2nd are sequentially laminated with the liquid crystal panel Adhesive phase, the 1st diaphragm, the 1st polarizer, the 1st adhesive phase and reflection type polarizer.
The type of drive of liquid crystal cells can be known any mode, it is preferred that being IPS patterns.Use this hair The wet heat durability of the liquid crystal panel of bright involved polarization plates is excellent.
Each polarization plates are fitted in display of organic electroluminescence by the present invention by the 2nd adhesive phase, the 3rd adhesive phase, So as to obtain organic electroluminescence display device and method of manufacturing same.
Embodiment
Hereinafter, show that embodiment carries out more specific description to the present invention, but the invention is not restricted to these examples.Example In, as long as no specified otherwise, represent that content or the % of usage amount and part are weight basis.
The thickness of film is determined according to following methods.
(1) measure of film thickness
It is measured using the digital micrometer " MH-15M " of Nikon company systems.
[making of polarizer]
(Production Example P1)
60 μm of polyvinyl alcohol film (average degree of polymerization about 2400,99.9 moles of more than % of saponification degree) of thickness is passed through into dry type Stretching carries out longitudinal uniaxial tension to about 5 times, further in the case where keeping tense situation direct impregnation 1 point in 60 DEG C of pure water Clock, then it is impregnated in the aqueous solution of the weight than 28 DEG C for 0.05/5/100 of iodine/KI/water 60 seconds.Then, impregnate 300 seconds in the aqueous solution of the weight of KI/boric acid/water than 72 DEG C for 8.5/8.5/100.Continue the pure water with 26 DEG C Washing 20 seconds, is then dried processing at 65 DEG C, and the thickness for obtaining iodine gas absorption quantity on polyvinyl alcohol film is 23 μm Polarizer.Hereinafter, the polarizer is designated as polarizer (23 μm) sometimes.
(Production Example P2)
30 μm of polyvinyl alcohol film (average degree of polymerization about 2400,99.9 moles of more than % of saponification degree) of thickness is passed through into dry type Stretching carries out longitudinal uniaxial tension to about 5 times, further in the case where keeping tense situation direct impregnation 1 point in 60 DEG C of pure water Clock, then it is impregnated in the aqueous solution of the weight than 28 DEG C for 0.05/5/100 of iodine/KI/water 60 seconds.Then, impregnate 300 seconds in the aqueous solution of the weight of KI/boric acid/water than 72 DEG C for 8.5/8.5/100.Continue the pure water with 26 DEG C Washing 20 seconds, is then dried processing at 65 DEG C, and the thickness for obtaining iodine gas absorption quantity on polyvinyl alcohol film is 12 μm Polarizer.Hereinafter, the polarizer is designated as polarizer (12 μm) sometimes.
(Production Example P3)
In addition to adjusting Production Example P2 stretching ratio, made in the same way, obtain iodine in polyvinyl alcohol film The thickness of upper gas absorption quantity is 11 μm of polarizer.Hereinafter, the polarizer is designated as polarizer (11 μm) sometimes.
(Production Example P4)
20 μm of polyvinyl alcohol film (average degree of polymerization about 2400,99.9 moles of more than % of saponification degree) of thickness is passed through into dry type Stretching carries out longitudinal uniaxial tension to about 5 times, further in the case where keeping tense situation direct impregnation 1 point in 60 DEG C of pure water Clock, the weight of iodine/KI/water is then impregnated at 28 DEG C than 60 seconds in the aqueous solution for 0.05/5/100.Then, exist The weight of KI/boric acid/water is impregnated at 72 DEG C than 300 seconds in the aqueous solution for 8.5/8.5/100.Continue with 26 DEG C Pure water 20 seconds, is then dried processing at 65 DEG C, and the thickness for obtaining iodine gas absorption quantity on polyvinyl alcohol film is 7 μm polarizer.Hereinafter, the polarizer is designated as polarizer (7 μm) sometimes.
(Production Example P5)
In addition to adjusting Production Example P4 stretching ratio, made in the same way, obtain iodine in polyvinyl alcohol film The thickness of upper gas absorption quantity is 8 μm of polarizer.Hereinafter, the polarizer is designated as polarizer (8 μm) sometimes.
(Production Example P6)
(1) priming coat formation process
By pva powder (trade name " Z-200 " of the Nippon Synthetic Chemical Industry Co., Ltd, average degree of polymerization 1100,99.5 moles of % of saponification degree) it is dissolved in 95 DEG C of hot water, prepare the weight % of concentration 3 polyvinyl alcohol water solution. To the aqueous solution in using ratio mixed cross-linker (the field ridge chemical industry relative to 6 weight account polyethylene alcohol powder as 5 parts by weight Co. Ltd. system trade name " Sumirez Resin 650 "), obtain priming coat formation coating fluid.
Prepare base material film (the non-stretched polypropylene screen of 110 μm of thickness, fusing point：163 DEG C), implement in its one side at corona Reason, above-mentioned priming coat formation coating fluid then is coated with using micro gravure coating machine on the sided corona treatment face, is done at 80 DEG C Dry 10 minutes, so as to form the priming coat of 0.2 μm of thickness.The stretch modulus strain formula for possessing thermostat at 80 DEG C of base material film Commercial firm's Shimadzu manufactures made universal testing machine " オ ー ト グ ラ Off AG-I " and is measured, and is as a result 200MPa.
(2) resin bed formation process
By pva powder (KURARAY CO., LTD. trade name " PVA124 ", average degree of polymerization 2400, saponification 98.0~99.0 moles of % of degree) it is dissolved in 95 DEG C of hot water, the weight % of concentration 8 polyvinyl alcohol water solution is prepared, is made For polyvinyl alcohol resin layer formation coating fluid.
On the base coating surface of the base material film with priming coat made in above-mentioned (1), with the coating of lip mould coating machine Polyvinyl alcohol resin layer formation coating fluid is stated, is dried 2 minutes at 80 DEG C, so as to make by base material film/priming coat/poly- second 3 layers of the stacked film that enol resin is formed.
(3) stretching process
Implement 5.8 times of free end uniaxial tension at 160 DEG C to the stacked film made in above-mentioned (2), stretched Film.The thickness of polyvinyl alcohol resin layer after stretching is 5 μm.
(4) dyeing process
It is (relative that the stretched film made in above-mentioned (3) is impregnated in 30 DEG C of the dyeing aqueous solution comprising iodine and KI Contain 0.35 parts by weight iodine, 10 part by weight of potassium iodide in 100 parts by weight water) in carry out polyvinyl alcohol resin layer dyeing at Reason.Then, unnecessary staining solution is fallen with 10 DEG C of pure water rinsing.Continue to be impregnated in 76 DEG C of the friendship comprising boric acid and KI Carried out in the connection aqueous solution (containing 9.5 part by weight of boric acid, 5 part by weight of potassium iodide relative to 100 parts by weight water) at crosslinking within 300 seconds Reason.Then, with 10 DEG C of pure water 10 seconds, dried 200 seconds at 80 DEG C, so as to which the one side obtained in base material film has The polarizability stacked film of polarizer layer.The thickness of polarizer layer is 5 μm.Hereinafter, sometimes the polarizer layer is designated as polarizing Piece (5 μm).
[preparation example of the 1st adhesive phase]
Urethane acrylate oligomer and isocyanates system will be added in the copolymer of butyl acrylate and acrylic acid Organic solvent solution obtained by crosslinking agent, the poly- terephthaldehyde for 38 μm of thickness for implementing demoulding processing is coated on by die coating machine The demoulding process face of sour glycol ester film (stripping film) is simultaneously dried, so that dried thickness is 5 μm, obtains adhesive sheet Material.
[preparation example of the 2nd adhesive phase and the 3rd adhesive phase]
Implementing at the demoulding of the thickness of demoulding processing for 38 μm of polyethylene terephthalate film (stripping film) Reason face sets adhesive sheet commercially available obtained by the acrylic adhesive layer of 20 μm of thickness.Do not coordinate polyurethane acroleic acid Ester oligomer.
[reflection type polarizer]
As reflection type polarizer -1, " Advanced the Polarized Film, Version 3 " of 3M company systems are used (26 μm of thickness).
[diaphragm]
Use following diaphragm.
HC-TAC：32 μm of thickness, tri cellulose acetate membrane (Co., Ltd. TOPPAN of the surface through hard conating process TOMOEGAWA Optical Film systems, 25KCHC-TC),
TAC：Tri cellulose acetate membrane (TAC) (the KONICA MINOLTA INC. trade name that 25 μm of thickness “KC2UA”〕
COP-1：Norbornene resin film (the NIPPON ZEON CORPORATION systems of 23 μm unstretched of thickness Trade name " ZEONOR ")
COP-2：Norbornene resin film (the NIPPON ZEON CORPORATION systems of 13 μm unstretched of thickness Trade name " ZEONOR ")
[preparation of water system bonding agent]
Relative to 100 parts by weight water, the carboxy-modified polyvinyl alcohol of 3 parts by weight of dissolving (KURARAY CO., LTD.'s " KL-318 "), prepare polyvinyl alcohol water solution.In the obtained aqueous solution using relative to 100 parts by weight water as 1.5 parts by weight Ratio mixing water soluble polyamide epoxy resin (" the Sumirez Resin 650 (30) " of Taoka Chemical Industries Co. Ltd., The weight % of solid component concentration 30), obtain water system bonding agent.
[preparation of ultra-violet solidified bonding agent]
Following composition is mixed, deaeration, ultra-violet solidified bonding agent is prepared with liquid condition.
75 parts of 3,4- epoxy cyclohexylenedinitrilotetraacetic acid 3,4- epoxycyclohexanecarboxylates
20 parts of 1,4- butanediol diglycidyl ethers
5 parts of 2- ethylhexyl glycidyl ethers
2.25 parts of triaryl hexafluorophosphoric acid sulfonium system light cationic polymerization initiator.
Obtained it should be noted that light cationic polymerization initiator uses in the form of 50% polypropylene carbonate ester solution Reagent.(2.25 parts) of use level as implied above is solid constituent amount.
[the making examples of face side polarization plates]
(face side polarization plates A making example)
Water system bonding agent is coated with the side of polarizer (11 μm), HC-TAC is as the 2nd diaphragm for fitting, in its opposite side COP-1 is laminated using foregoing bonding agent, is dried 5 minutes at 80 DEG C, so that diaphragm is bonded with polarizer.Fitting Afterwards, cured 168 hours at 40 DEG C.In addition, it is bonded the 3rd adhesive phase on the surface of COP-1 side opposite with polarizer.Should Layered product is as face side polarization plates A.It should be noted that layered product is long edge lengths is 155.25mm, bond length is 95.90mm rectangular shape.
(face side polarization plates B making example)
In addition to face side polarization plates A polarizer is changed into polarizer (12 μm), enter in the same manner as face side polarization plates A Row makes.Using the layered product as face side polarization plates B.
(face side polarization plates C making example)
In addition to face side polarization plates A polarizer is changed into polarizer (8 μm), enter in the same manner as face side polarization plates A Row makes.Using the layered product as face side polarization plates C.
(face side polarization plates D making example)
In addition to face side polarization plates A polarizer is changed into polarizer (7 μm), enter in the same manner as face side polarization plates A Row makes.Using the layered product as face side polarization plates D.
(face side polarization plates E making example)
Sided corona treatment is implemented to COP-1.On the COP-1 face for implementing sided corona treatment, it is coated with micro gravure coating machine Ultra-violet solidified bonding agent, fit in the polarizer layer of above-mentioned polarizability stacked film.Then, from base material film side, use The irradiation dress of the ultraviolet with belt conveyer for being mounted with ultraviolet lamp " D bulbs " of FUSHION UV SYSTEM company systems Put, using accumulated light as 250mJ/cm2Mode irradiate ultraviolet, solidify ultra-violet solidified bonding agent, obtain by base material 5 layers of the film that film/priming coat/polarizer layer/ultra-violet solidified bond layer/COP-1 is formed.
Peel off and remove base material film, obtain the polarization plates with one side diaphragm.Base material film can be easily peeled off.Then, Again prepare COP-1, implement sided corona treatment.On the COP-1 face for implementing sided corona treatment, it is coated with micro gravure coating machine purple Outside line curability bonding agent, fitted in the prime layer side of the above-mentioned polarization plates with one side diaphragm.Then, with polarizer On the basis of, from priming coat side, ultraviolet is irradiated under conditions of same as described above, solidifies ultra-violet solidified bonding agent, obtains Formed to by the ultra-violet solidified bond layer/priming coat/polarizer layers of COP-1//ultra-violet solidified bond layer/COP-1 Polarization plates.The thickness of bond layer after solidification is 1.0 μm.Using the polarization plates as face side polarization plates E.Need to illustrate , layered product is the rectangular shape that long edge lengths are 155.25mm, bond length is 95.90mm.
[the making examples of rear side polarization plates]
(rear side polarization plates A making example)
Water system bonding agent is coated with the side of polarizer (12 μm), TAC is as diaphragm for fitting, before its opposite side use The bonding agent stated is laminated COP-2 as the 1st diaphragm, is dried 5 minutes at 80 DEG C, so that diaphragm pastes with polarizer Close.After fitting, cured 168 hours at 40 DEG C.In addition, it is bonded the 2nd adhesive on the surface of COP-2 side opposite with polarizer Layer.In addition, reflection type polarizer is bonded by the 1st adhesive on the surface of TAC side opposite with polarizer.The layered product is made For rear side polarization plates A.It should be noted that layered product is the square that long edge lengths are 155.25mm, bond length is 95.90mm Shape shape.
(rear side polarization plates B making example)
In addition to rear side polarization plates A polarizer is changed into polarizer (11 μm), enter in the same manner as rear side polarization plates A Row makes.Using the layered product as rear side polarization plates B.
(rear side polarization plates C making example)
Water system bonding agent is coated with the side of polarizer (7 μm), stacking COP-2 dries as the 1st diaphragm at 80 DEG C 5 minutes, so that diaphragm is bonded with polarizer.
In addition, it is bonded the 2nd adhesive phase on the surface of COP-2 side opposite with polarizer.In addition, in polarizer and Reflection type polarizer is bonded by the 1st adhesive on the surface of the opposite side of 1 diaphragm.Using the layered product as rear side polarization plates C.It should be noted that using the layered product as rear side polarization plates A.It should be noted that layered product is long edge lengths is 155.25mm, the rectangular shape that bond length is 95.90mm.
(rear side polarization plates D making example)
In addition to rear side polarization plates A polarizer is changed into polarizer (23 μm), enter in the same manner as rear side polarization plates A Row makes.Using the layered product as rear side polarization plates D.
The composition of polarization plates in thus obtained embodiment and comparative example is shown in table 1.In addition, according in following record The physical property for holding each polarization plates to obtaining is evaluated.As a result it is shown in table 1.
[measure of amount of warpage]
(making of layered product)
For the layered product with polarization plates of above-mentioned making, amount of warpage is determined using the following method.First, by made The 2nd adhesive phase of rear side polarization plates fit in thickness 0.4mm glass (Corning Incorporated's system, article number：EAGLE XG(registration mark))。
Then, by the 3rd adhesive phase of face side polarization plates, fit in above-mentioned glass with the 2nd adhesive phase side phase The face tossed about.It should be noted that so that the absorption axiss of the 2nd polarizer of face side polarization plates and foregoing rear side polarization plates The absorption axiss angulation of 1st polarizer is that 90 ° of mode is bonded, and so that the 1st polarization of rear side polarization plates The mode that the long side angulation of the absorption axiss of piece and foregoing rear side polarization plates is 90 ° makes layered product.
(warpage under resistance to wet environment)
The layered product of composition with rear side polarization plates/glass/face side polarization plates is statically placed in 60 DEG C, humidity 90% In the environment of 250 hours.Layered product is taken out from test flume, two-dimentional measure is placed in a manner of making face side polarization plates for upside On the measure platform of device (Nikon Co. Ltd. systems, NEXIV (registration mark) MR-12072).
Then, the surface of measure platform is focused on, as benchmark, 25 points focused on respectively on glass sample face, is surveyed The fixed height started at from the focus as benchmark.Using the difference of the medium-altitude maxima and minima of the measuring point of 25 points as sticking up Qu Liang.Specifically, using the point 50 shown in Fig. 3 as measuring point.25 points shown in Fig. 3 are from the end of polarization plates to inner side Point in 7mm region, short side direction are arranged at intervals with about 20mm, and long side direction is arranged at intervals with about 35mm.In addition, in Fig. 3, Symbol 60 represents polarization plates, and 70 represent glass plate.
Judged in method as follows.As a result it is shown in table 1.
Float, peel off, respectively it should be noted that not observing that layered product is overall in embodiment, in Arbitrary Samples Interlayer floats, peeled off.In dorsal part warpage occurs for the sample of comparative example 3.
<Judge>
The situation that the amount of warpage for the glass sample being statically placed under hygrothermal environment is below 0.4mm is designated as "○".
Situation of the amount of warpage for the glass sample being statically placed under hygrothermal environment more than 0.4mm is designated as "×".
(warpage under hot environment)
For the layered product of the composition with rear side polarization plates/glass/face side polarization plates, so that face side polarization plates For the mode of upside, above-mentioned layered product is statically placed in 85 DEG C, 250 hours in the environment of humidity 5%.Stacking is taken out from test flume Body, the polarization plates for producing warpage are placed in two-dimentional analyzer (Nikon Co., Ltd. in a manner of making face side polarization plates for upside System, NEXIV (registration mark) MR-12072) measure platform on.Amount of warpage is determined same as mentioned abovely.
<Judge>
The situation that the amount of warpage for the glass sample being statically placed under hot environment is below 0.4mm is designated as "○".
Situation of the amount of warpage for the glass sample being statically placed under hot environment more than 0.4mm is designated as "×".
[table 1]
From the above results, for the polarization board component of the present invention, it is exposed to hot conditions even in polarization plates Under, under hygrothermal environment in the case of, the warpage of liquid crystal panel is also suppressed.Glued furthermore it is possible to suppress the 2nd adhesive phase and the 3rd The cohesion of mixture layer destroys.In addition, the polarization plates of the present invention are even in the situation under hot conditions, under hygrothermal environment Under, the observation (Visual Recognize of polarization plates) it is also fabulous, the light leak of polarization plates will not also occur.
Thus, amount of warpage is small when polarization board component of the invention configures under hygrothermal environment and hot environment, therefore can The peeling from touch panel, the problem of coming off of back light unit is reduced or avoided.In addition, cause because of heat-resisting environmental test (high temperature The experiment of environment) and moisture-proof thermal environmental test (experiment of hygrothermal environment) warpage and it is caused display inequality reduction.
Industrial applicability
According to the present invention, there is provided it is a kind of suppress for example caused by the contraction of polarizer and reflection type polarizer warpage it is inclined Vibration plate component.In addition, according to the present invention, there is provided a kind of also to suppress to fit in the solidifying of the adhesive phase of the glass substrate of liquid crystal cells The poly- polarization board component destroyed.

Claims (5)

1. one kind polarization board component, matches somebody with somebody included in the rear side polarization plates of a surface side of liquid crystal cells configuration and in another surface side The face side polarization plates put, wherein,
The rear side polarization plates have reflection type polarizer, the 1st adhesive phase, the 1st polarizer, the 1st diaphragm and the 2nd bonding Oxidant layer,
The face side polarization plates have the 3rd adhesive phase, the 2nd polarizer and the 2nd diaphragm,
Thickness d F by the 2nd polarizer of the face side polarization plates is subtracted to the 1st polarizer of the rear side polarization plates In the case that poor dF-dR is set to Δ d obtained by thickness d R, -10 μm≤Δ d<0 μm, wherein, described dF, dR and Δ d list Position for μm,
The absorption axiss of 2nd polarizer of the face side polarization plates and the absorption axiss of the 1st polarizer of the rear side polarization plates Angulation is 90 ° ± 1 °.
2. polarization board component as claimed in claim 1, wherein, the thickness of the 1st polarizer is less than 15 μm.
3. polarization board component as claimed in claim 1 or 2, wherein, the absorption axiss of the 1st polarizer of the rear side polarization plates Long side angulation with the rear side polarization plates is 90 ° ± 1 °.
4. polarization board component as claimed any one in claims 1 to 3, wherein, the reflection type polarizer has at least 2 layers Film, the refractive anisotrop of at least 2 layer films are different.
5. a kind of liquid crystal panel, there are liquid crystal cells and a pair of the polarization plates configured on its two sides, wherein,
The pair of polarization plates are the polarization board components any one of Claims 1-4,
The 2nd diaphragm, the 2nd polarizer, the 3rd adhesive phase, liquid crystal cells, the 2nd are sequentially laminated with the liquid crystal panel Adhesive phase, the 1st diaphragm, the 1st polarizer, the 1st adhesive phase and reflection type polarizer.
CN201710457759.6A 2016-06-21 2017-06-16 Polarize board component Pending CN107526206A (en)

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