CN107728238A - Optical film and its manufacture method - Google Patents
Optical film and its manufacture method Download PDFInfo
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- CN107728238A CN107728238A CN201710945929.5A CN201710945929A CN107728238A CN 107728238 A CN107728238 A CN 107728238A CN 201710945929 A CN201710945929 A CN 201710945929A CN 107728238 A CN107728238 A CN 107728238A
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- Prior art keywords
- polarizer
- optical film
- overcoat
- diaphragm
- polarization plates
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- 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
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- 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
-
- 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
- B32B2551/00—Optical elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides the caused optical film and its manufacture method for reducing tilting.Optical film has polarization plates and fits in the protecting film on the surface of polarization plates.Polarization plates include polarizer and are laminated in the diaphragm of polarizer.Protecting film includes adhesive phase and is laminated in the overcoat of the polarization plates across adhesive phase.On the width of optical film, the side of diaphragm is located at the side position in the outer part than polarizer, and the side of overcoat is located at the side position in the inner part than polarizer.
Description
Technical field
The present invention relates to optical film and its manufacture method.
Background technology
At present, as optical film, it is known that the optics described in Japanese Unexamined Patent Publication 2014-102353 publications (patent document 1)
Film.The optical film has polarization plates and fits in the protecting film on the surface of polarization plates.Polarization plates include polarizer and are laminated in partially
Shake the diaphragm of piece.Protecting film includes adhesive phase and is laminated in the overcoat of polarization plates across adhesive phase.
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2014-102353 publications
However, when being intended to actual manufacture and using above-mentioned existing optical film, it was found that there are the following problems.That is, in light
Learn film keeping or processing in, sometimes optical film width end, in the adhesive phase and polarization plates of protecting film
Diaphragm between produce tilting.When producing the tilting, intrusion there can be foreign matter etc. between protecting film and polarization plates, so as to lead
Cause display bad etc..
Then, further investigation has been repeated in generation of the present inventor to tilting, finds：The generation of tilting and optics
The position relationship of the side of each component (polarizer, diaphragm, adhesive phase, overcoat) on the width of film has big
Association.
The content of the invention
Then, problem of the invention is, there is provided reduces the caused optical film and its manufacture method of tilting.
For solving the scheme of problem
In order to solve the problem, optical film of the invention has polarization plates and fits in the protection on the surface of the polarization plates
Film,
The optical film is characterised by,
The polarization plates include polarizer and are laminated in the diaphragm of the polarizer,
The protecting film includes adhesive phase and is laminated in the overcoat of the polarization plates across the adhesive phase,
On the width of the optical film,
Position of the side of the diaphragm positioned at the side than the polarizer in the outer part,
The side of the overcoat is located at and the side identical position of the polarizer or the side than the polarizer
The position of end in the inner part.
According to the optical film of the present invention, on the width of optical film, the side of overcoat is positioned at the side with polarizer
Hold identical position or the side position in the inner part than polarizer.Thus, even if positioned at the side than polarizer in the outer part
The diaphragm of position be significantly deformed into waveform shape because of moisture absorption etc., the protection positioned at the position of the side than polarizer in the outer part
Film is also not easy to interfere with overcoat, can reduce the tilting between the adhesive phase of protecting film and the diaphragm of polarization plates
Generation.
In addition, the optical film of the present invention has polarization plates and fits in the protecting film on the surface of the polarization plates,
The optical film is characterised by,
The polarization plates include polarizer and are laminated in the diaphragm of the polarizer,
The protecting film includes adhesive phase and is laminated in the overcoat of the polarization plates across the adhesive phase,
On the width of the optical film,
Position of the side of the diaphragm positioned at the side than the polarizer in the outer part,
Position of the side of the overcoat positioned at the side than the polarizer in the outer part,
The side of the overcoat is located at the side identical position of described adhesive layer or than described adhesive layer
Side position in the outer part,
Position of the side of the diaphragm positioned at the side than described adhesive layer in the outer part,
Width dimensions between the side of the overcoat and the side of described adhesive layer are set to L1, the diaphragm
Side and described adhesive layer side between width dimensions when being set to L2, width dimensions L1 and width dimensions L2 ratio
L1/L2 is more than 0 and less than 0.27.
According to the optical film of the present invention, on the width of optical film, the side of overcoat is located at the side than polarizer
The position of end in the outer part, the side of width dimensions L1 and diaphragm between the side of overcoat and the side of adhesive phase are with gluing
The ratio L1/L2 of width dimensions L2 between the side of mixture layer is more than 0 and less than 0.27.Thus, even if positioned at than polarization
The diaphragm of the position of the side of piece in the outer part is significantly deformed into waveform shape because of moisture absorption etc., positioned at more outer than the side of polarizer
The diaphragm of the position of side is also not easy to interfere with overcoat, can reduce the adhesive phase of protecting film and the guarantor of polarization plates
The generation of tilting between cuticula.
In addition, in an embodiment of optical film, the optical film is formed as single sheet.
According to the embodiment, optical film is formed as single sheet.Even in this case, can also reduce protecting film
The generation of tilting between adhesive phase and the diaphragm of polarization plates.
In addition, in an embodiment of optical film, the optical film is wound as web-like.
According to the embodiment, optical film is wound as web-like.Even in this case, can also reduce the viscous of protecting film
The generation of tilting between mixture layer and the diaphragm of polarization plates.
In addition, in an embodiment of the manufacture method of optical film,
The optical film has polarization plates and fits in the protecting film on the surface of the polarization plates,
The manufacture method of the optical film is characterised by,
The polarization plates include polarizer and are laminated in the diaphragm of the polarizer,
The protecting film includes adhesive phase and is laminated in the overcoat of the polarization plates across the adhesive phase,
On the width of the optical film,
Make position of the side of the diaphragm positioned at the side than the polarizer in the outer part,
The side of the overcoat is set to be located at the side identical position of the polarizer or than the polarizer
The position of side in the inner part, thus manufactures optical film.
In addition, in an embodiment of the manufacture method of optical film,
The optical film has polarization plates and fits in the protecting film on the surface of the polarization plates,
The manufacture method of the optical film is characterised by,
The polarization plates include polarizer and are laminated in the diaphragm of the polarizer,
The protecting film includes adhesive phase and is laminated in the overcoat of the polarization plates across the adhesive phase,
On the width of the optical film,
Make position of the side of the diaphragm positioned at the side than the polarizer in the outer part,
Make position of the side of the overcoat positioned at the side than the polarizer in the outer part,
Make the side of the overcoat positioned at the side identical position with described adhesive layer or compare described adhesive
The position of the side of layer in the outer part,
Make position of the side of the diaphragm positioned at the side than described adhesive layer in the outer part,
Width dimensions between the side of the overcoat and the side of described adhesive layer are set to L1, the diaphragm
Side and described adhesive layer side between width dimensions when being set to L2, make width dimensions L1 and width dimensions L2 ratio
Example L1/L2 is more than 0 and less than 0.27, thus manufactures optical film.
Invention effect
According to the optical film and its manufacture method of the present invention, on the width of optical film, the side of overcoat is located at
Side position in the inner part with the side identical position of polarizer or than polarizer, therefore the production of tilting can be reduced
It is raw.
According to the optical film and its manufacture method of the present invention, on the width of optical film, the side of overcoat is located at
Than the side position in the outer part of polarizer, width dimensions L1 and protection between the side of overcoat and the side of adhesive phase
The ratio L1/L2 of width dimensions L2 between the side of film and the side of adhesive phase is more than 0 and less than 0.27, therefore can
Reduce the generation tilted.
Brief description of the drawings
Fig. 1 is the schematic sectional view for the first embodiment for representing the optical film of the present invention.
Fig. 2 is the amplification view of the end of the width of optical film.
Fig. 3 is the amplification view for the second embodiment for representing the optical film of the present invention.
Fig. 4 is the amplification view for the 3rd embodiment for representing the optical film of the present invention.
Fig. 5 is the amplification view for the 4th embodiment for representing the optical film of the present invention.
Fig. 6 is the amplification view for the 5th embodiment for representing the optical film of the present invention.
Fig. 7 is the amplification view for the 6th embodiment for representing the optical film of the present invention.
Description of reference numerals
1st, 1A~1E optical films
10 polarization plates
11 polarizers
11a sides
12 diaphragms
12a sides
13 phase retardation films
13a sides
20 protecting films
21 adhesive phases
21a sides
22 overcoats
22a sides
Width dimensions between the side of L1 overcoats and the side of adhesive phase
Width dimensions between the side of L2 diaphragms and the side of adhesive phase
Width dimensions between the side of W polarizers and the side of adhesive phase
Embodiment
Hereinafter, explanation is of the invention in further detail in the illustrated embodiment.
(first embodiment)
Fig. 1 is the sectional view for the first embodiment for representing the optical film of the present invention.As shown in figure 1, optical film 1 has partially
Vibration plate 10 and fit in polarization plates 10 surface protecting film 20.
Polarization plates 10 include polarizer 11, be laminated in polarizer 11 one side diaphragm 12 and be laminated in polarizer
The phase retardation film 13 of 11 another side.It should be noted that phase retardation film 13 can also be omitted.Protecting film 20 includes adhesive phase
21 and it is laminated in the overcoat 22 of polarization plates 10 across adhesive phase 21.
Polarizer 11 is for example made up of polyvinyl alcohol resin.Polyvinyl alcohol resin is generally by polyvinyl acetate
It is that resin carries out saponification and obtained.The saponification degree of polyvinyl alcohol resin is usually 85 moles of more than %, preferably 90 moles of %
More than, more preferably 99~100 moles of %.As polyvinyl acetate system resin, except the homopolymer of vinyl acetate is i.e. poly-
Beyond vinyl acetate, vinyl acetate and copolymer, such as ethene-second of other monomers that can be copolymerized therewith can be also enumerated
Vinyl acetate copolymer etc..As the other monomers that can be copolymerized, in addition to above-mentioned ethene, such as unsaturated carboxylic acid can be enumerated
Olefines, vinyl ethers, unsaturated sulfonic acid class beyond class, ethene etc..The degree of polymerization of polyvinyl alcohol resin is usually
1000~10000, preferably 1500~5000 or so.The thickness of polarizer 11 is usually 1~60 μm or so, preferably 5~40 μ
M or so.
Diaphragm 12 is for example made up of triacetyl cellulose (TAC) or polyethylene terephthalate (PET).Need
Bright, diaphragm 12 can also for example have optical characteristics as phase retardation film.The thickness of diaphragm 12 is usually 30~
100 μm or so.
Phase retardation film 13 is for example made up of cyclic olefin polymer.It should be noted that phase retardation film 13 can be omitted, or
Phase retardation film 13 can also be replaced and use diaphragm.The thickness of phase retardation film 13 is usually 30~100 μm or so.
Adhesive phase 21 is for example made up of acrylic adhesive.Bonding force is, for example, 0.01~0.20N/25mm.Bonding
The thickness of oxidant layer 21 is usually 10~20 μm or so.
Overcoat 22 is for example made up of triacetyl cellulose (TAC) or polyethylene terephthalate (PET).Need
Bright, overcoat 22 can also for example have optical characteristics as phase retardation film.The thickness of overcoat 22 is usually 30~
50 μm or so.
Fig. 2 is the sectional view of the end of the width of optical film 1.As shown in Fig. 2 on the width of optical film 1,
Positions of the side 12a of diaphragm 12 positioned at the side 11a than polarizer 11 in the outer part.The side 13a of phase retardation film 13 is located at
Than the side 11a positions in the outer part of polarizer 11.The side 22a of overcoat 22 is positioned at more inner than the side 11a of polarizer 11
The position of side.The side 12a of diaphragm 12 is located at roughly the same position with the side 13a of phase retardation film 13.Overcoat 22
Positions of the side 22a positioned at the side 12a than diaphragm 12 in the inner part.
Positions of the side 22a of overcoat 22 positioned at the side 21a than adhesive phase 21 in the outer part.The side of diaphragm 12
Positions of the 12a positioned at the side 21a than adhesive phase 21 in the outer part.By the side 22a of overcoat 22 and adhesive phase 21 side
Width dimensions between the 21a of end are set to L1.By the width between the side 12a of diaphragm 12 and the side 21a of adhesive phase 21
Size is set to L2.Width dimensions between the side 11a of polarizer 11 and the side 21a of adhesive phase 21 are set to W.
So, in width dimensions L1 scope, adhesive phase 21 is not present in overcoat 22.In width dimensions L2 model
Enclose, adhesive phase 21 is not present in diaphragm 12.
On width dimensions L1, L2, on the basis of the side 21a of adhesive phase 21, overcoat 22 side 22a and
When the side 12a of diaphragm 12 is located at the side 21a positions in the outer part than adhesive phase 21, width dimensions L1, L2 are set to just
Number.On the other hand, it is located at the side 21a than adhesive phase 21 in the side 22a of overcoat 22 and the side 12a of diaphragm 12
During position in the inner part, width dimensions L1, L2 are set to negative.Expose caused periphery to suppress the end of adhesive phase 21
The pollution of equipment or optical film 1, bandpass size L1 are more than 0.In addition, in order to protect the end of polarizer 11, generally protect
Positions of the side 12a of cuticula 12 positioned at the side 11a than polarizer 11 in the outer part.
On width dimensions W, on the basis of the side 11a of polarizer 11, it is located in the side 21a of adhesive phase 21 than inclined
Shake piece 11 side 11a positions in the outer part when, width dimensions W is set to positive number.On the other hand, in the side of adhesive phase 21
When 21a is located at the side 11a positions in the inner part than polarizer 11, width dimensions W is set to negative.
In this embodiment, L1, L2 are positive number, and W is negative.In addition, L1, L2, W absolute value are compared, then |
L2 | ＞ | W | ＞ | L1 | set up.Generally, for width 1000mm~2500mm of optical film 1,0 ＜ L1≤15mm,
20mm≤L2≤50mm, 0 ＜ | W | ＜ 25mm.
In the manufacture method of the optical film 1, make the side 12a of diaphragm 12 positioned at the side 11a than polarizer 11
Position in the outer part, the side 22a of overcoat 22 is set to be located at the side 11a positions in the inner part than polarizer 11 to manufacture optics
Film 1.
According to the optical film 1 and its manufacture method, the side 22a of overcoat 22 is located at the side 11a than polarizer 11
Position in the inner part.Thus, even if the diaphragm 12 of the position positioned at the side 11a than polarizer 11 in the outer part is due to moisture absorption etc.
And be significantly deformed into waveform shape, the diaphragm 12 positioned at the positions of the side 11a than polarizer 11 in the outer part be also not easy with
Overcoat 22 interferes, and can reduce tilting between the adhesive phase 21 of protecting film 20 and the diaphragm 12 of polarization plates 10
Produce.Also, even if optical film 1 is formed as single sheet, is wound as web-like, it can also reduce the generation of tilting.
In a word, present inventor has speculated the caused mechanism tilted as follows.Optical film 1 keeping or add
In work, diaphragm 12 is possible to suck moisture and be deformed into waveform shape.Now, at the diaphragm 12 overlapping with polarizer 11,
Polarizer 11 plays function as framework material, thus do not produce diaphragm 12 deformation or diaphragm 12 deformation it is small.
On the other hand, at the diaphragm 12 of the position positioned at the side 11a than polarizer 11 in the outer part, in the absence of as framework material
Polarizer 11, therefore the deformation of diaphragm 12 is big.Thus, big diaphragm 12 is deformed to interfere with overcoat 22, so as to
Cause the stress on the direction away from diaphragm 12 of overcoat 22.As a result, adhesive phase 21 is peeling from diaphragm 12,
Tilting is produced between adhesive phase 21 and diaphragm 12.
Therefore, present inventor studies the mechanism and drawn, by making the side 22a of overcoat 22 be located at than polarizer
The positions of 11 side 11a in the inner part, it is not easy to interfere with overcoat 22 so that deforming big diaphragm 12.
(second embodiment)
Fig. 3 is the sectional view for the second embodiment for representing the optical film of the present invention.The overcoat of second embodiment with
The position relationship of polarizer is different from the overcoat of first embodiment and the position relationship of polarizer.Illustrate that this is different below
Structure.It should be noted that in this second embodiment, it is and the first embodiment party with first embodiment identical reference
Formula identical structure, therefore the description thereof will be omitted.
As shown in figure 3, in optical film 1A, the side 22a of overcoat 22 is positioned at the side 11a identicals with polarizer 11
Position.The position relationship of other components is identical with first embodiment.In this embodiment, L1, L2 are positive number, and W is negative.
| L2 | ＞ | W |=| L1 | set up.Generally, for width 1000mm~2500mm of optical film 1,0 ＜ L1≤15mm,
20mm≤L2≤50mm, 0 ＜ | W | ＜ 25mm.
In the manufacture method of the optical film 1A, make the side 12a of diaphragm 12 positioned at the side 11a than polarizer 11
Position in the outer part, the side 22a of overcoat 22 is set to be located at the side 11a identicals position of polarizer 11 to manufacture optical film
1。
According to the optical film 1A and its manufacture method, the side 22a of overcoat 22 is positioned at the side 11a with polarizer 11
Identical position.Thus, even if the diaphragm 12 of the position positioned at the side 11a than polarizer 11 in the outer part is big because of moisture absorption etc.
Width is deformed into waveform shape, and the diaphragm 12 positioned at the positions of the side 11a than polarizer 11 in the outer part is also not easy and overcoat
22 interfere, and can reduce the generation of the tilting between the adhesive phase 21 of protecting film 20 and the diaphragm 12 of polarization plates 10.
(the 3rd embodiment)
Fig. 4 is the sectional view for the 3rd embodiment for representing the optical film of the present invention.3rd embodiment overcoat is with gluing
The position relationship of mixture layer is different from the overcoat of first embodiment and the position relationship of adhesive phase.Illustrate the difference below
Structure.It should be noted that it is to implement with first with first embodiment identical reference in the third embodiment
Mode identical structure, therefore the description thereof will be omitted.
As shown in figure 4, in optical film 1B, the side 22a of overcoat 22 is positioned at identical with the side 21a of adhesive phase 21
Position.The position relationship of other components is identical with first embodiment.In this embodiment, L1 turns into 0, L2 and turned into just
Number, W turn into negative.| L2 | ＞ | W | set up.Generally, for width 1000mm~2500mm of optical film 1,20mm≤
L2≤50mm, 0 ＜ | W | ＜ 25mm.
Same with the first embodiment according to the optical film 1B, the side 22a of overcoat 22 is located at than polarizer
The positions of 11 side 11a in the inner part, therefore the adhesive phase 21 of protecting film 20 and the diaphragm 12 of polarization plates 10 can be reduced
Between tilting generation.In addition, the side 22a of overcoat 22 is located at the side 21a identicals position with adhesive phase 21, because
This can reduce the width dimensions of overcoat 22, so as to reduce the material cost of overcoat 22.
(the 4th embodiment)
Fig. 5 is the sectional view for the 4th embodiment for representing the optical film of the present invention.4th embodiment overcoat and
The position relationship of adhesive phase and polarizer is different from overcoat and the position of adhesive phase and polarizer of first embodiment
Put relation.Illustrate the different structure below.It should be noted that in the 4th embodiment, it is identical with first embodiment
Reference be with first embodiment identical structure, therefore the description thereof will be omitted.
As shown in figure 5, in optical film 1C, the side 22a of overcoat 22 be located at than polarizer 11 side 11a in the outer part
Position.Positions of the side 21a of adhesive phase 21 positioned at the side 11a than polarizer 11 in the outer part.The position of other components
Relation is identical with first embodiment.In this embodiment, L1, L2, W turn into positive number.| L2 | ＞ | W | ＞ | L1 | set up.And
And width dimensions L1 is more than 0 and less than 0.27 relative to width dimensions L2 ratio L1/L2.
In the manufacture method of the optical film 1C, make the side 12a of diaphragm 12 positioned at the side 11a than polarizer 11
Position in the outer part, make positions of the side 22a of overcoat 22 positioned at the side 11a than polarizer 11 in the outer part, make overcoat
Positions of the 22 side 22a positioned at the side 21a than adhesive phase 21 in the outer part, the side 12a of diaphragm 12 is set to be located at than viscous
The positions of the side 21a of mixture layer 21 in the outer part, it is more than 0 and less than 0.27 to make ratio L1/L2, thus manufactures optical film 1C.
According to the optical film 1C and its manufacture method, the side 22a of overcoat 22 is located at the side 11a than polarizer 11
Position in the outer part, width dimensions L1 are more than 0 and less than 0.27 relative to width dimensions L2 ratio L1/L2, are preferably
Less than 0.13, more preferably less than 0.07.Thus, even if the protection of the position positioned at the side 11a than polarizer 11 in the outer part
Film 12 is significantly deformed into waveform shape because of moisture absorption etc., the diaphragm 12 positioned at the positions of the side 11a than polarizer 11 in the outer part
Also be not easy to interfere with overcoat 22, can reduce the adhesive phase 21 of protecting film 20 and polarization plates 10 diaphragm 12 it
Between tilting generation.
In a word, present inventor studies the caused mechanism of tilting described in the first embodiment and drawn, i.e.,
The side 22a of overcoat 22 is located at side 11a positions in the outer part than polarizer 11, deform big diaphragm 12 easily with
Overcoat 22 interferes, by make width dimensions L1 relative to width dimensions L2 ratio L1/L2 for more than 0 and 0.27 with
Under, preferably less than 0.13, more preferably less than 0.07, the diaphragm 12 that can also make deformation big are not easy to occur with overcoat 22
Interference.
(the 5th embodiment)
Fig. 6 is the sectional view for the 5th embodiment for representing the optical film of the present invention.The overcoat of 5th embodiment with
The position relationship of adhesive phase is different from the overcoat of the 4th embodiment and the position relationship of adhesive phase.Illustrate this below not
Same structure.It should be noted that in the 5th embodiment, it is and the 4th reality with the 4th embodiment identical reference
Mode identical structure is applied, therefore the description thereof will be omitted.
As shown in fig. 6, in optical film 1D, the side 22a of overcoat 22 is positioned at identical with the side 21a of adhesive phase 21
Position.The position relationship of other components is identical with the 4th embodiment.In this embodiment, L1 turns into 0, L1/L2 and turned into
0, L2, W turns into positive number.| L2 | ＞ | W | set up.
In the manufacture method of the optical film 1D, make the side 12a of diaphragm 12 positioned at the side 11a than polarizer 11
Position in the outer part, make positions of the side 22a of overcoat 22 positioned at the side 11a than polarizer 11 in the outer part, make overcoat
22 side 22a makes the side 12a of diaphragm 12 be located at than bonding positioned at the side 21a identicals position with adhesive phase 21
The positions of the side 21a of oxidant layer 21 in the outer part, thus manufacture optical film 1D.
It is same with the 4th embodiment according to the optical film 1D and its manufacture method, the side 22a of overcoat 22
Positioned at the positions of the side 11a than polarizer 11 in the outer part, L1/L2 0, therefore the adhesive phase 21 of protecting film 20 can be reduced
The generation of tilting between the diaphragm 12 of polarization plates 10.In addition, the side 22a of overcoat 22 is located at and adhesive phase 21
Side 21a identicals position, therefore the width dimensions of overcoat 22 can be reduced, so as to reduce the material of overcoat 22 into
This.
(the 6th embodiment)
Fig. 7 is the sectional view for the 6th embodiment for representing the optical film of the present invention.6th embodiment, polarizer with
The position relationship of adhesive phase is different from the polarizer of the 4th embodiment and the position relationship of adhesive phase.Illustrate this below not
Same structure.It should be noted that in the 6th embodiment, it is and the 4th reality with the 4th embodiment identical reference
Mode identical structure is applied, therefore the description thereof will be omitted.
As shown in fig. 7, in optical film 1E, the side 21a of adhesive phase 21 is positioned at more inner than the side 11a of polarizer 11
The position of side.The position relationship of other components is identical with the 4th embodiment.In this embodiment, L1, L2 turn into positive number, W
As negative.| L2 | ＞ | L1 | ＞ | W | set up.L1/L2 is more than 0 and less than 0.27, preferably less than 0.13, more preferably
Less than 0.07.In addition, the 6th embodiment is | W | very big situation, generally | and W | ＞ 5, preferably | and W | ＞ 10.
According to the optical film 1E, in the same manner as the 4th embodiment, the side 22a of overcoat 22 is located at than polarization
The positions of the side 11a of piece 11 in the outer part, L1/L2 are more than 0 and less than 0.27, preferably less than 0.13, more preferably 0.07
Hereinafter, therefore the generation of the tilting between the adhesive phase 21 of protecting film 20 and the diaphragm 12 of polarization plates 10 can be reduced.
It should be noted that the present invention is not limited to above-mentioned embodiment, the purport of the present invention can not departed from
In the range of be designed change.
In the first embodiment~the 5th embodiment, it is preferred that the side 22a of overcoat 22 is located at
With the side 21a identicals position of adhesive phase 21, W is more than -5mm and below 5mm.Thereby, it is possible to reduce overcoat 22
Width dimensions, so as to reduce the material cost of overcoat 22.
(embodiment 1)
Then, first embodiment, second embodiment, the embodiment of the 3rd embodiment are illustrated.Table 1 is shown anti-
The side 22a of sheath 22 is located at than the side 11a identicals position of polarizer 11 or positioned at more inner than the side 11a of polarizer 11
In the state of the position of side, on " L1 ", " L2 ", " L1/L2 ", " W ", " generation of tilting " result.
【Table 1】
| L1(mm) | L2(mm) | L1/L2 | W(mm) | The generation of tilting | |
| First embodiment | 0 | 49.5 | 0.00 | -26.5 | Nothing |
| Second embodiment | 4 | 30 | 0.13 | -8 | Nothing |
| 3rd embodiment | 8 | 33.5 | 0.24 | -10.5 | Nothing |
| Fourth embodiment | 8 | 32.5 | 0.25 | -9.5 | Nothing |
| 5th embodiment | 8 | 30 | 0.27 | -8 | Nothing |
First embodiment is suitable with the 3rd embodiment, second embodiment~fourth embodiment and first embodiment phase
When the 5th embodiment is suitable with second embodiment.
As shown in table 1, as shown in the embodiment of first embodiment~the 5th, if the side of overcoat 22 with L1, L2, W independently
22a is held to be located at the position with the side 11a identicals position of polarizer 11 or positioned at the side 11a than polarizer 11 in the inner part,
Then without generation tilting.
Here, the evaluation method of explanation " generation of tilting ".Tilt the stripping for referring to generate more than 1cm in the direction of the width
From state.After protecting film is fitted in into polarization plates and batched, about 700mm monolithic is cut into the MD direction
Shape, and it is positioned over tabular surface.In Clean room (about 22 DEG C 55%) place about 30 minutes after tilting shape to protecting film end
State is evaluated.As long as slightly forming tunnel, NG (having tilting) is just set to.
(embodiment 2)
Then, the 4th embodiment, the 5th embodiment, the embodiment of the 6th embodiment are illustrated.Table 2 is shown anti-
The side 22a of sheath 22 be located at than polarizer 11 side 11a in the outer part in the state of, on " L1 ", " L2 ", " L1/L2 ",
" W ", the result of " generation of tilting ".
【Table 2】
| L1(mm) | L2(mm) | L1/L2 | W(mm) | The generation of tilting | |
| Sixth embodiment | 0 | 24.5 | 0.00 | 2.5 | Nothing |
| 7th embodiment | 0.7 | 17 | 0.04 | 6 | Nothing |
| 8th embodiment | 1.5 | 24 | 0.06 | 3 | Nothing |
| 9th embodiment | 2.5 | 24 | 0.10 | 3 | Nothing |
| Tenth embodiment | 2 | 19 | 0.11 | 4 | Nothing |
| 11st embodiment | 9.5 | 37 | 0.26 | -7 | Nothing |
| First comparative example | 9.5 | 34 | 0.28 | -4 | Have |
| Second comparative example | 9.5 | 33 | 0.29 | -3 | Have |
| 3rd comparative example | 9.5 | 31.5 | 0.30 | -1.5 | Have |
| 4th comparative example | 9.5 | 31.5 | 0.30 | -1.5 | Have |
| 5th comparative example | 8 | 25.5 | 0.31 | -3.5 | Have |
| 6th comparative example | 8 | 25 | 0.32 | -2 | Have |
| 7th comparative example | 8 | 24 | 0.33 | -1 | Have |
| 8th comparative example | 9.5 | 27 | 0.35 | 3 | Have |
| 9th comparative example | 9.5 | 27 | 0.35 | 3 | Have |
| Tenth comparative example | 9.5 | 25.5 | 0.37 | 4.5 | Have |
| 11st comparative example | 8 | 21 | 0.38 | 2 | Have |
| 12nd comparative example | 9.5 | 24 | 0.40 | 3 | Have |
Sixth embodiment is suitable with the 5th embodiment, the embodiment of the 7th embodiment~the tenth and the 4th embodiment phase
When the 11st embodiment is suitable with the 6th embodiment.
As shown in table 2, if being located in the side 22a of the overcoat 22 as shown in the embodiment of sixth embodiment~the 11st
Than polarizer 11 side 11a positions in the outer part when, it is more than 0 and less than 0.27 to make L1/L2, then without producing tilting.Separately
On the one hand, if make L1/L2 bigger than 0.27 as shown in the comparative example of the first comparative example~the 12nd, tilting is generated.
Claims (6)
1. a kind of optical film, it has polarization plates and fits in the protecting film on the surface of the polarization plates,
The optical film is characterised by,
The polarization plates include polarizer and are laminated in the diaphragm of the polarizer,
The protecting film includes adhesive phase and is laminated in the overcoat of the polarization plates across the adhesive phase,
On the width of the optical film,
Position of the side of the diaphragm positioned at the side than the polarizer in the outer part,
The side of the overcoat is located to be leaned on the side identical position of the polarizer or the side than the polarizer
The position of inner side.
2. a kind of optical film, it has polarization plates and fits in the protecting film on the surface of the polarization plates,
The optical film is characterised by,
The polarization plates include polarizer and are laminated in the diaphragm of the polarizer,
The protecting film includes adhesive phase and is laminated in the overcoat of the polarization plates across the adhesive phase,
On the width of the optical film,
Position of the side of the diaphragm positioned at the side than the polarizer in the outer part,
Position of the side of the overcoat positioned at the side than the polarizer in the outer part,
The side of the overcoat is located at and the side identical position of described adhesive layer or the side than described adhesive layer
The position of end in the outer part,
Position of the side of the diaphragm positioned at the side than described adhesive layer in the outer part,
Width dimensions between the side of the overcoat and the side of described adhesive layer are set to L1, the side of the diaphragm
When width dimensions between end and the side of described adhesive layer are set to L2, width dimensions L1 and width dimensions L2 ratio L1/
L2 is more than 0 and less than 0.27.
3. optical film according to claim 1 or 2, wherein,
The optical film is formed as single sheet.
4. optical film according to claim 1 or 2, wherein,
The optical film is wound as web-like.
5. a kind of manufacture method of optical film, the optical film has polarization plates and fits in the protection on the surface of the polarization plates
Film,
The manufacture method of the optical film is characterised by,
The polarization plates include polarizer and are laminated in the diaphragm of the polarizer,
The protecting film includes adhesive phase and is laminated in the overcoat of the polarization plates across the adhesive phase,
On the width of the optical film,
Make position of the side of the diaphragm positioned at the side than the polarizer in the outer part,
The side of the overcoat is set to be located at and the side identical position of the polarizer or the side than the polarizer
Position in the inner part, thus manufactures optical film.
6. a kind of manufacture method of optical film, the optical film has polarization plates and fits in the protection on the surface of the polarization plates
Film,
The manufacture method of the optical film is characterised by,
The polarization plates include polarizer and are laminated in the diaphragm of the polarizer,
The protecting film includes adhesive phase and is laminated in the overcoat of the polarization plates across the adhesive phase,
On the width of the optical film,
Make position of the side of the diaphragm positioned at the side than the polarizer in the outer part,
Make position of the side of the overcoat positioned at the side than the polarizer in the outer part,
The side of the overcoat is set to be located at the side identical position of described adhesive layer or than described adhesive layer
The position of side in the outer part,
Make position of the side of the diaphragm positioned at the side than described adhesive layer in the outer part,
Width dimensions between the side of the overcoat and the side of described adhesive layer are set to L1, the side of the diaphragm
When width dimensions between end and the side of described adhesive layer are set to L2, make width dimensions L1 and width dimensions L2 ratio
L1/L2 is more than 0 and less than 0.27, thus manufactures optical film.
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| JP2016-202900 | 2016-10-14 | ||
| JP2016202900A JP6453288B2 (en) | 2016-10-14 | 2016-10-14 | Optical film and manufacturing method thereof |
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| JP2018063445A (en) * | 2017-12-25 | 2018-04-19 | 住友化学株式会社 | Optical film and production method thereof |
| JP6689433B2 (en) * | 2018-05-31 | 2020-04-28 | 住友化学株式会社 | Laminated body and manufacturing method thereof |
| JP6721645B2 (en) * | 2018-09-03 | 2020-07-15 | 住友化学株式会社 | Optical film |
| CN113631971A (en) * | 2019-04-02 | 2021-11-09 | 住友化学株式会社 | Optical laminate |
| KR102362872B1 (en) | 2021-06-08 | 2022-02-15 | 오브젠 주식회사 | Method for refining clean labeled data for artificial intelligence training |
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| TW201837509A (en) | 2018-10-16 |
| KR20180041614A (en) | 2018-04-24 |
| JP6453288B2 (en) | 2019-01-16 |
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| TW201814336A (en) | 2018-04-16 |
| KR102169558B1 (en) | 2020-10-23 |
| TWI766049B (en) | 2022-06-01 |
| JP2018063402A (en) | 2018-04-19 |
| TWI631377B (en) | 2018-08-01 |
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Application publication date: 20180223 |