CN104102049A - Rubbing Treatment Method - Google Patents
Rubbing Treatment Method Download PDFInfo
- Publication number
- CN104102049A CN104102049A CN201410143730.7A CN201410143730A CN104102049A CN 104102049 A CN104102049 A CN 104102049A CN 201410143730 A CN201410143730 A CN 201410143730A CN 104102049 A CN104102049 A CN 104102049A
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- Prior art keywords
- friction
- alignment film
- roller
- treatment method
- dust
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Classifications
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133784—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by rubbing
-
- B08B1/20—
-
- 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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The object of the present invention is to provide a rubbing treatment method which can restrain the bright spot defects substantially. The rubbing treatment method comprises an off-line dedusting step in which a brush roller (102) vibrates left and right while rotating and contacting a rubbing roller (72) at the periphery of which a rubbing cloth (90) is arranged under an off-line state, so that the dust attached to the rubbing cloth (90) is removed; an alignment film formation step in which a base material possessing an alignment film formation material layer moves continuously, while the rubbing roller (72) which dedusts in the off-line dedusting step is used to form the alignment film.
Description
Technical field
The present invention relates to the friction treatment method that a kind of use friction roller (rubbing roller) forms alignment film, relate in particular to a kind of friction treatment method of the surface of alignment film formation material layer being carried out friction treatment when manufacturing the optical compensation films (film) of liquid crystal indicator.
Background technology
In liquid crystal indicator, use the optical compensation films that is used for expanding visual angle as Polarizer member.Generally speaking, this optical compensation films is that profit is manufactured with the following method: the banded pliability supporter at formed of transparent resin is (following, also referred to as " net (web) ") surface on be coated with orientation with coating fluid and after making it dry, form after alignment film forms material layer, its surface is implemented friction treatment and is formed alignment film; And, on alignment film coating of liquid crystalline coating solution and make it dry after form liquid crystal layer, make afterwards its sclerosis.
Friction treatment is the representational orientation processing method of liquid crystal molecule, and be to carry out by the following method: on net surface, form alignment film and form material layer, the friction that makes reeling transfers the surface of this alignment film formation material layer to rub with the friction roller high-speed rotary of cloth material.
In recent years, with regard to liquid crystal indicator, maximization, the high brightness of device are improved, and require to reduce manufacturing cost (cost).Thereupon, the member that requires liquid crystal indicator is also large scale (size) change of Polarizer, multifunction, quality raising, and thereupon, optical compensation films is wide cut, rectangularization also.And, especially, because of the high brightness of liquid crystal indicator, high-precision refinement, make the bright spot size decreases that the decline of the display quality of liquid crystal indicator is exerted an influence.Therefore, require to remove to become the small dust of the reason of bright spot (dedusting).
Therefore,, in patent documentation 1, propose a kind ofly can improve productive friction treatment method by the long lifetime of removing expeditiously the dust producing in friction treatment and realizing friction roller.
[prior art document]
[patent documentation]
[patent documentation 1] Japanese Patent Laid-Open 2011-123120 communique
Summary of the invention
Yet, even if carry out friction treatment as patent documentation 1, be also difficult to prevent fleck defect.
The present invention completes in view of described situation, and its object is to provide a kind of friction treatment method that can suppress significantly fleck defect.
In order to reach described object, the invention provides a kind of friction treatment method, comprise: off-line dust removal step, under off-line state, make rotating contact of brush roll (brush roller) one side side-to-side vibrations in periphery, install the friction roller of the cloth that rubs, thereby remove the dust being attached on friction cloth; And alignment film formation step, one side is divided a word with a hyphen at the end of a line the base material with alignment film formation material layer continuously, and one side forms alignment film with the friction roller of having removed dust in off-line dust removal step.
According to the present invention, under off-line state, make brush roll one side left and right (roller Width) rotating contact of vibration in periphery, install the friction roller of the cloth that rubs, thereby remove the dust being attached on friction cloth, under the state of online (online), use this friction roller to form alignment film, thus, can suppress significantly fleck defect.In addition, by making brush roll side-to-side vibrations, also can suppress because being attached to dust on brush roll make the to rub performance deteriorated situation partly of cloth.
In the present invention, preferably, base material is banded pliability supporter.
And in the present invention, preferably, brush roll is identical with the sense of rotation that use friction roller forms alignment film with respect to the sense of rotation of friction roller.As long as brush roll is identical with the sense of rotation that use friction roller forms alignment film with respect to the sense of rotation of friction roller, so just can make woven design consistent.
And in the present invention, preferably, it is to take modified polyvinylalcohol to form as major component that alignment film forms material layer.Especially at coating modified polyvinylalcohol (modified PVA (Polyvinyl Alcohol)), become in the blooming of alignment film, alignment film starting material (modified PVA) are electronegative, on the other hand, the suitable raw-material hydrophobic synthetic fibre positively charged as friction cloth, so, the dust being caused by alignment film producing because of friction treatment is easily attached on friction cloth, so the present invention is effective especially under electrostatic interaction.
[effect of invention]
According to friction treatment method of the present invention, can suppress significantly fleck defect.
Accompanying drawing explanation
Fig. 1 means the key diagram of the manufacture line of optical compensation films.
Fig. 2 is the pie graph that schematically shows friction treatment device of the present invention.
Fig. 3 is the pie graph schematically showing from a part for top view friction treatment device of the present invention.
[explanation of symbol]
10: the manufacture line of optical compensation films
11,11A, 11B: excellent apparatus for coating
15A, 15B: dust removal machine
16,16a: net
66: send machine
67: coiling machine
68: deflector roll
70,70A, 70B: friction treatment device
71A, 71B: dust removal machine
72,72A, 72B: friction roller
76,76A, 76B: dry section
78,78A, 78B: heating zone
80: UV-lamp
81: send machine
82: coiling machine
84: roller platform (testing fixture)
84A, 84B: roller platform
86,86A, 86B: backing roll
88: backing roll (laminating machine)
88A, 88B: backing roll
90: friction cloth
100: off-line dust arrester
102: brush (brush roll)
104: exhaust apparatus
108: height blows flow nozzle device
θ: blow angle
Embodiment
Below, according to alterations, the good embodiment of friction treatment method of the present invention is described.
Fig. 1 is the manufacture line 10 as the optical compensation films of an example of application friction treatment method of the present invention.
As shown in Figure 1, from sending machine 66, send for example, net 16 as banded pliability supporter (being transparent supporting body).Net 16 through dust removal machine 15A, thus, is removed the lip-deep dust that is attached to net 16 by deflector roll (guide roller) 68 guidings.As dust removal machine 15A, can adopt known all kinds.For example, can adopt following formation: the pressurized air after electrostatic precipitation (air) (nitrogen) spray attachment, on the surface of net 16, is removed to the lip-deep dust that is attached to net 16.
In the net direction of travel downstream (being designated hereinafter simply as downstream) of dust removal machine 15A, be provided with rod (bar) apparatus for coating 11A, the coating fluid of the formation material that contains alignment film formation material layer is coated on net 16.In addition, apparatus for coating is not limited to excellent apparatus for coating, can adopt various apparatus for coating, intaglio plate coating machine (gravure coater) for example, roll coater (roll coater) (passes on roller (transfer roll) coating machine, reverse roll (reverse roll) coating machine etc.), mould coating machine (die coater), extrusion coater (extrusion coater), jetting type coating machine (fountain coater), curtain coater (curtain coater), dip coaterd (dip coater), atomizing coating machine (spray coater) or sliding hopper (slide hopper) etc.
In the downstream of excellent apparatus for coating 11A, be sequentially provided with dry section (zone) 76A, heating zone 78A, on net 16, form alignment film and form material layer.At coating coating fluid and after making it dry, be wound on coiling machine 67.
And, from sending machine 81, send the net 16a that is formed with alignment film formation material layer.Net 16a is subject to deflector roll 68 guidings and is admitted to friction treatment device 70.Friction roller 72A (72B) implements friction treatment and establishes for alignment film being formed to material layer.In the upstream of friction roller 72A (72B), be provided with dust removal machine 71A (71B), remove the lip-deep dust that is attached to net 16a.
Friction treatment device 70A (70B) is for alignment film being formed to the device that material layer is implemented friction treatment, in this example, becomes and by friction roller 72A, friction roller 72B, forms the roller of 2 sections and form.In addition, as friction treatment device 70, also can adopt the roller of 1 section to form.
Friction treatment device 70A (70B) can rotarily actuate outer surface volume the friction roller 72A (72B) of cloth material for friction described later, and controls rotational speed for till for example about 1000rpm.The shape of friction roller 72A (72B) can be for example for external diameter be 150mm, under the state with rubbing angle length also than the slightly long roller shape of width of net 16a.And friction treatment device 70A (70B) is in order to be adjusted into rubbing angle arbitrarily, and can rotation freely on surface level with respect to the direction of travel of net 16a.
Friction roller 72 is attached at Cylindorical rod by friction cloth 90 and forms, and its external diameter manufactures 100mm～500mm, preferably 150nm～300mm.As friction cloth 90, can enumerate (with reference to Fig. 2) such as the sheet material (sheet) that can be obtained by rubber (gum), nylon (nylon), polyester (polyester) etc., the sheet material (velvet (velvet) etc.) that can be obtained by nylon fiber, rayon (rayon) fiber, dacron, paper, gauze (gauze), felts (felt).
Friction roller 72 is connected in not shown rotary driving source, and the mode of for example, rotating with speed (200rpm～600rpm) is in accordance with regulations controlled.In addition, preferably, friction roller 72 is configured in the scope till scope, for example 1000rpm left and right that its rotational speed can be controlled to regulation.
Top at friction roller 72A (72B), be provided with roller platform (stage) 84A (84B), at the lower surface of this roller platform 84A (84B), via spring (spring), backing roll (backup roll) 86A (86B), backing roll 88A (88B) be installed freely rotatably.For backing roll 86A (86B), backing roll 88A (88B), be provided with the mechanism of the tension force (tension) that detects net 16a, thus the tension force in the time of managing friction.
In addition, backing roll 86A (86B), backing roll 88A (88B) can adjust up and down, can make roller move up and down and adjust net 16a for the cornerite (wrap angle) of friction roller 72A (72B).
According to above formation, net 16a one side is pressed from top by backing roll 86A (86B), 88A (88B), one side utilizes the surface that the alignment film on net 16a surface (lower surface) is formed to material layer from the friction roller 72A (72B) of downside extruding net 16a to rub, and forms the alignment film with regiospecific.
As long as alignment film forms material layer for transparent and can utilize orientation to process and carry out orientation.As alignment film, form the example of the formation material of material layer, can enumerate the compounds such as the polymkeric substance such as polymethylmethacrylate, acrylic acid/methacrylic acid copolymer, styrene/maleimide copolymer, (modification) polyvinyl alcohol (PVA), poly-(N hydroxymethyl acrylamide), styrene/ethylene base toluene multipolymer, chlorosulfonated polyethylene, nitrocellulose, Polyvinylchloride, chloridized polyolefin, polyester, polyimide, vinyl acetate copolymer, ethylene/vinyl acetate, carboxylic cellulose formiate, tygon, polypropylene and polycarbonate and silane coupling agent.As the example of preferred polymkeric substance, can enumerate polymkeric substance, gelatin, (modification) polyvinyl alcohol (PVA) or the polyvinyl alcohol derivative of polyimide, polystyrene, styrene derivative.With regard to the formation material that forms material layer with regard to alignment film, the material with polymerism base can increase the bond strength with liquid crystal layer, therefore effectively, more preferably contains modified polyvinylalcohol as the formation material of major component.In this instructions, so-called major component is illustrated in to form in material and contains modified polyvinylalcohols more than 60 quality %, more than preferably containing 80 quality %, more than more preferably containing 90 quality %.
In the downstream of friction treatment device 70, be provided with dust removal machine 15B, can remove the lip-deep dust that is attached to net 16a.
In the downstream of dust removal machine 15B, be provided with excellent apparatus for coating 11B, the coating fluid that contains discoid nematic (disco nematic) liquid crystal is coated on net 16a.As apparatus for coating 11B, identical when the coating fluid that comprises alignment film and form the formation material of material layer is coated on net 16, can use various apparatus for coating.
In the downstream of excellent apparatus for coating 11B, be sequentially provided with dry section 76B, heating zone 78B, on net 16a, be formed with liquid crystal layer.And, in this downstream, be provided with UV-lamp (lamp) 80, by irradiation ultraviolet radiation, make liquid crystal cross linking, form required polymkeric substance.And, utilize testing fixture 84 to check, and it is upper that the diaphragm 88A being sent by lamination (laminate) machine 88 is laminated to net 16a, utilizes the coiling machine 82 that is located at this downstream to batch the net 16a that is formed with polymkeric substance.
In present embodiment, manufacture line 10 integral body of optical compensation films, especially excellent apparatus for coating 11A, excellent apparatus for coating 14B can be arranged in the clean environments such as toilet (clean room).At this moment, cleanliness are preferably below 1000 grades (class), more preferably below 100 grades, more more preferably below 10 grades.
Fig. 2 means the schematic diagram of the formation of the off-line dust arrester 100 in the off-line dust removal step of present embodiment, and Fig. 3 is the schematic diagram of a part for the off-line dust arrester 100 from the off-line dust removal step of top view present embodiment.
In the present invention, after manufacturing optical compensation films, there is the off-line dust removal step of the dust of removing friction cloth 90.By remove the dust of friction cloth 90 in this off-line dust removal step, in the time of preventing from forming alignment film on the manufacture line 10 of optical compensation films (more specifically, while being friction treatment) dust that produces is attached on alignment film (alignment film in friction treatment forms material layer), therefore, can manufacture the good film of outward appearance.
Off-line dust removal step can be used the brush (brush roll) 102 of roller shape to carry out as shown in Figure 2.The brush 102 of roller shape is to form as follows: by being contacted with friction cloth 90, and remove the dust being attached on friction cloth 90.Preferably, brush roll is identical with the sense of rotation that use friction roller forms alignment film with respect to the sense of rotation of friction roller.As long as use the sense of rotation (sense of rotation of Fig. 2 becomes clockwise) of friction roller formation alignment film identical, can make so woven design consistent.
Friction roller 72 is connected in not shown rotary driving source, and the mode of for example, rotating with speed (200rpm～600rpm) is in accordance with regulations controlled.In addition, friction roller 72 preferably forms as follows: its rotational speed can be controlled in the scope, the scope till for example 1000rpm left and right of regulation.
And brush 102 is also connected in not shown rotary driving source, and the mode of rotating with speed is in accordance with regulations controlled.The optimum value of the rotational speed of brush 102 is 100rpm～700rpm, when having the effect of hitting dust down when above for 100rpm.And, when easily removing dust when following for 700rpm.
Brush 102 is 0.5m1m～1.5mm with the optimum value of overlapping (over lap) amount (amount of being pressed into of brush) of friction roller 72.When for 0.5mm has the effect of hitting dust down when above, when can reduce the damage of the cloth that rubs when following for 1.5mm.
The optimum value of the diameter of the roller of brush 102 is 50mm～200mm, when being that 50mm can be crooked at rotary course axis (shaft) when above, can on Width, remove equably dust.And, when for 200mm when following the cost of manufacture of roller can not rise.
And as shown in Figure 3, in the off-line dust arrester 100 of present embodiment, brush 102 one sides maintain the distance one side side-to-side vibrations (vibration (oscillate)) with the cloth 90 that rubs.Because making brush 102 vibration, make brush 102 and the contact site of friction cloth 90 become unfixing, so, can suppress because being attached to dust on brush roll make the to rub performance deteriorated situation partly of cloth.
In addition, preferably, off-line dust arrester 100 has exhaust apparatus 104.Exhaust apparatus 104 can prevent that the dust of having been removed by friction cloth dust removal step is attached on friction cloth again, therefore, can produce the better optical compensation films of quality.
And, in order to remove the dust that is attached to brush front end, preferably, at the interior height that arranges of exhaust apparatus 104, blow flow nozzle (high blow nozzle) device 108.When blowing angle θ and being 1 °～45 °, the ability of removing powder dust from brush 102 obviously improves, and is therefore preferred.
In addition, brush 102 comprises long filament (filament), but when forming material layer, alignment film usings modified polyvinylalcohol during as major component, with regard to polyvinyl alcohol (PVA) (PVA) micro mist of the evocating substance as film fleck defect, as long as long filament is that nylon can remove, but when for polypropylene or rayon because of band electric array close, so be difficult to remove.
The optimum value of the length of the long filament of brush 102 is 5mm～11mm, can make the hardness of long filament become best by being made as 5mm～11mm, easily removes dust, on friction cloth, is difficult for staying damage.
And the optimum value of the rugosity of the long filament of brush 102 is 100 μ m～300 μ m.By being made as 100 μ m～300 μ m, make the hardness of long filament become best, easily remove dust, on friction cloth, be difficult for staying damage.
Then, the effect of off-line dust arrester 100 is described.
In off-line dust arrester 100, by making the brush 102 contact friction cloth 90 of the roller shape of side-to-side vibrations, remove to be attached to the dust on friction cloth 90.
Therefore, according to present embodiment, utilize the friction roller 72 that removes the dust of attachment removal, can under online state, form the alignment film of high-quality process friction treatment, therefore, can provide the high-quality optical compensation films that fleck defect is few.
[embodiment]
At cellulosic triacetate (FUJITAC, Fujiphoto (thigh) is manufactured, thickness: 40 μ n, width a: side of strip film (net) 1500mm), be coated with long chain alkyl modified polyvinyl alcohol (PVA) (MP-203, the aqueous solution of 5 % by weight Kuraray (Kuraray) (thigh) manufacture) is dried 4 minutes at 90 ℃.Like this, form the alignment film formation material layer of thickness 2.0 μ m.
Use the device of Fig. 1 to form material surface enforcement friction treatment to alignment film.Utilize roller (roller external diameter: 90mm, length: the net that 1650mm) one side forms material layer to having alignment film from top is pressed, one side in the direction of arrow continuously with 20 meters (m)/minute this net of speed conveyance.One side makes the friction roller (external diameter: 300mm) rotate with the speed of 400rpm towards the contrary direction of the direction of travel with net, the friction cloth (velvet) that one side makes to be attached on Cylindorical rod is contacted with alignment film formation material layer net being pushed from downside.
For friction roller, utilize the method shown in the experiment 1～experiment 7 of table 1 to carry out the processing of removing of dust.In addition, in off-line dust removal process, brush element shape is used the type that material is nylon, length 8mm, diameter 180 μ m.
Test in 1, one side is vibrated and is simultaneously carried out off-line dedusting, and afterwards, a net that forms material layer in the face of having alignment film rubs and simultaneously carries out dedusting (online dedusting).In experiment 2, the angle that blows that height is blowed to flow nozzle device is made as 30 ° and carry out dedusting, is in addition made as and tests 1 identical condition.In experiment 3, brush sense of rotation is reversed, be in addition made as and test 1 identical condition.In experiment 4, the one side one side of vibrate is carried out off-line dedusting, afterwards, does not carry out online dedusting and rubs to having the net of alignment film formation material layer.In experiment 5, carry out off-line dedusting in non-oscillating situation, a net that forms material layer in the face of having alignment film rubs and simultaneously carries out dedusting afterwards.In experiment 6, under the state of online, off-line, all do not carry out dedusting.In experiment 7, under the state of off-line, do not carry out dedusting, only under online state, carry out dedusting.
[evaluation method]
For the fleck defect number of the hyaline membrane after the friction treatment of experiment 1～experiment 7, according to the bright spot of using the planar testing fixture of charge-coupled image sensor (charge coupled device, CCD) camera, produce frequency and evaluate.Evaluation result is shown in Table 1.In addition, about the mark in table, the bright spot when all not implementing dedusting under online, off-line state produces frequency and is made as 150%, evaluates in the following manner.
6... quality very good (produce frequency be less than 30%)
5... (producing frequency is more than 30% and is less than 50%) best in quality
4... (producing frequency is more than 50% and is less than 80%) in quality permissible range
3... quality tolerable limit (produce frequency be more than 80% and be less than 100%)
2... poor quality (produce frequency be more than 100% and be less than 120%)
1... quality permissible range outer (produce frequency be more than 120% and 150% below)
In addition, more than 3 be qualified level (level), below 2, be defective level.
Known according to the evaluation result of the experiment 1 of table 1～experiment 7, while having implemented off-line dust removal process of the present invention, can obtain the high film of quality that fleck defect number is few.In addition, in experiment 5, the evaluation of fleck defect is good, but the Width polar distribution of field poor distribution of friction roller, generation orientation is bad.
And, about untapped friction cloth, also with used after friction cloth time identical, when carrying out friction treatment after off-line dedusting, can obtain with used after friction cloth time identical effect.
[table 1]
Claims (5)
1. a friction treatment method, is characterized in that comprising:
Off-line dust removal step, under off-line state, makes rotating contact of brush roll one side side-to-side vibrations in periphery, install the friction roller of the cloth that rubs, thereby removes the dust being attached on described friction cloth; And
Alignment film forms step, and one side is divided a word with a hyphen at the end of a line the base material with alignment film formation material layer continuously, and one side forms alignment film with the described friction roller of having removed dust in described off-line dust removal step.
2. friction treatment method according to claim 1, is characterized in that:
Described base material is banded pliability supporter.
3. friction treatment method according to claim 1, is characterized in that:
Described brush roll is identical with the sense of rotation that the described friction roller of use forms described alignment film with respect to the sense of rotation of described friction roller.
4. friction treatment method according to claim 2, is characterized in that:
Described brush roll is identical with the sense of rotation that the described friction roller of use forms described alignment film with respect to the sense of rotation of described friction roller.
According to claim 1 to the friction treatment method described in any one in claim 4, it is characterized in that:
It is to using modified polyvinylalcohol as major component that described alignment film forms material layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-083969 | 2013-04-12 | ||
| JP2013083969A JP2014206632A (en) | 2013-04-12 | 2013-04-12 | Rubbing method |
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| Publication Number | Publication Date |
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| CN104102049A true CN104102049A (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410143730.7A Pending CN104102049A (en) | 2013-04-12 | 2014-04-10 | Rubbing Treatment Method |
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| Country | Link |
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| JP (1) | JP2014206632A (en) |
| KR (1) | KR20140123422A (en) |
| CN (1) | CN104102049A (en) |
| TW (1) | TW201438823A (en) |
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|---|---|---|---|---|
| JP2017058445A (en) * | 2015-09-15 | 2017-03-23 | 住友化学株式会社 | Polarizing plate and liquid crystal panel |
| CN114633498A (en) * | 2022-05-18 | 2022-06-17 | 溧阳卓越新材料科技有限公司 | Film surface treatment process and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09311335A (en) * | 1996-05-24 | 1997-12-02 | Sharp Corp | Manufacture and manufacturing device for liquid crystal display device |
| JP5322909B2 (en) * | 2009-12-08 | 2013-10-23 | 富士フイルム株式会社 | Rubbing treatment method, optical compensation film manufacturing method |
-
2013
- 2013-04-12 JP JP2013083969A patent/JP2014206632A/en active Pending
-
2014
- 2014-04-04 KR KR1020140040579A patent/KR20140123422A/en not_active Application Discontinuation
- 2014-04-10 CN CN201410143730.7A patent/CN104102049A/en active Pending
- 2014-04-11 TW TW103113334A patent/TW201438823A/en unknown
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| Publication number | Publication date |
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| KR20140123422A (en) | 2014-10-22 |
| JP2014206632A (en) | 2014-10-30 |
| TW201438823A (en) | 2014-10-16 |
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Application publication date: 20141015 |