CN102451814A - Apparatus for optical sheet and method for preparing the optical sheet using the apparatus - Google Patents

Apparatus for optical sheet and method for preparing the optical sheet using the apparatus Download PDF

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Publication number
CN102451814A
CN102451814A CN201010624891XA CN201010624891A CN102451814A CN 102451814 A CN102451814 A CN 102451814A CN 201010624891X A CN201010624891X A CN 201010624891XA CN 201010624891 A CN201010624891 A CN 201010624891A CN 102451814 A CN102451814 A CN 102451814A
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CN
China
Prior art keywords
soft mode
coating
coating fluid
roller
conveyer belt
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Granted
Application number
CN201010624891XA
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Chinese (zh)
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CN102451814B (en
Inventor
金京泰
申东允
奇男
高政柱
李俊熙
郑伍溶
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Cheil Industries Inc
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Cheil Industries Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/222Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/44Compression means for making articles of indefinite length
    • B29C43/48Endless belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/58Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/002Component parts, details or accessories; Auxiliary operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00Producing optical elements, e.g. lenses or prisms
    • B29D11/00009Production of simple or compound lenses
    • B29D11/00365Production of microlenses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/44Compression means for making articles of indefinite length
    • B29C43/48Endless belts
    • B29C2043/483Endless belts cooperating with a second endless belt, i.e. double band presses

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a device for manufacturing optical sheets and a method for manufacturing optical sheets through the device. The device for manufacturing optical sheets improves the product yield and increases the effective filling rate of a coating liquid, while removing air bubbles. The device comprises a soft mode with patterns, a main roller used for transferring a soft mold and a base film mutually combined with each other, a first roller used for combining the base film with the soft mode, a second roller used for separating the combined film into a soft mold and a patterned optical film, and a pre-coating unit. The pre-coating unit comprises a guide roller used for transmitting the soft mode to a main coating unit, and a belt type coating liquid filling unit used for providing the coating liquid to the pattern of the soft mode. The filling unit comprises a conveyor belt and a belt tension control roller. The conveyor belt in contact with the soft mode is rotated and moved through the belt tension control roller.

Description

Be used to the optical sheet preparation method for preparing the device of optical sheet and use this device
Technical field
The present invention relates to be used to the optical sheet preparation method for preparing the device of optical sheet and use this device.More specifically; The present invention relates to use the volume to volume formula optical sheet preparation facilities and the optical sheet preparation method who uses this device of soft mode; In said device; Adopt belt coating fluid filling unit in the pre-coating stage, therefore can realize the productive rate higher than prior art, and the coating fluid and remove bubble of can effectively annotating.
Background technology
The back light unit that is used for LCD (LCD) comprises the optical sheet that promotes anaclasis and diffusion, to improve the uniformity and the brightness of light.These optical sheets can comprise diffused light diffusion sheet, be layered in the diffusion sheet upper surface and be passed to the prismatic lens of panel of LCD and the screening glass of protection diffusion sheet and prismatic lens with the light of assembling diffusion and with light.
Usually, for light diffusivity and brightness and other optical property that strengthens them, the patterned that the surface of these optical sheets is scheduled to.Recently, used volume to volume formula equipment to carry out the patterning of optical sheet on a large scale.
Volume to volume formula equipment can be divided into die formula equipment that uses the pattern metal mould and the soft mode formula equipment that uses membranaceous mould.
Die formula equipment is difficult to form the hemispherical microlens pattern, yet soft mode formula equipment can advantageously generate the various patterns that comprise microlens pattern.
Yet; Under the situation of soft mode formula equipment,, then in pattern, can produce bubble if for the productive rate that improves optical sheet makes the mould high-speed mobile; Maybe can occur causing irregular pattern form, thereby cause grievous injury product quality because of insufficient injection of coating fluid.Especially, for the hemispherical microlens pattern, can further increase the weight of the generation of bubble.In order to address these problems, most of soft mode formula equipment use coating fluid filling unit to carry out pre-coating before leading coating.
Korean Patent discloses for No. 887340 uses partly the annotate method of coating fluid of at least one compression roller, and said compression roller is through the fluoropolymer resin of annotating in the pattern that fluoropolymer resin is squeezed to film.Fig. 1 illustrates the optical sheet preparation facilities that uses compression roller.As shown in Figure 1, the structure of conventional optical sheet preparation facilities makes the soft mode 20 of patterning when a part of home roll 100 of contact, transmit through home roll 100.When soft mode 20 along the periphery of home roll 100 during rotation, coating fluid filling apparatus 110 is filled into coating fluid in the pattern of soft mode 20.This operation is equivalent to main coating, and usually, soft mode 20 is carried out pre-coating, leads coating subsequently.After accomplishing the main coating of using coating fluid filling apparatus 110, soft mode 20 is combined with basement membrane 10.Particularly, first roller 120 that engages with home roll 100 is pressed onto basement membrane 10 on the soft mode 20, so that they are bonded to each other, subsequently, the film 11 that gained is combined hardens and transmits along home roll 100.Film 11 after will hardening again is separated into the blooming 12 of soft mode 20 and patterning.In the case, soft mode 20 is peeled off from the blooming 12 of patterning, and be sent to pre-coating device A subsequently through second roller 130.Pre-coating device A is made up of deflector roll 140,141 and 142, so that soft mode 20 is sent to main apparatus for coating, i.e. and coating fluid filling apparatus 110 and engage applicator roll 150,151 and 152 with pre-coating soft mode 20 with each deflector roll 140,141 and 142.Applicator roll 150,151 and 152 is set to receive coating fluid from resin feeding container 160,161 and 162.After soft roller 20 was by pre-coating device A pre-coating, soft mode 20 rotated through home roll 100, thereby is transferred into coating fluid filling apparatus 110, and carried out the secondary coating subsequently, promptly main coating.
Yet the soft mode that the said method of use compression roller provides only has the subsection contact area in each compression roller substrate, therefore needs a plurality of compression rollers of extra installation to improve productive rate.Use a plurality of rollers can increase equipment size, and during being coated with, be exposed to the risk that the external world causes exterior materials to be polluted because of roller.
Summary of the invention
Therefore, carry out the present invention in view of above problem, and an object of the present invention is to provide the device that is used to prepare optical sheet.
According to an aspect of the present invention, above and other purpose of the present invention can be accomplished through the device that is provided for preparing optical sheet, and the said device that is used to prepare optical sheet comprises the soft mode with pattern; Home roll, said home roll are arranged to the said soft mode of contact, and play that transmission has been marked with the soft mode of coating fluid and the effect of the basement membrane that combines with said soft mode; First roller, said first roller engages with said home roll, and plays said basement membrane is pressed onto on the said soft mode that has been marked with coating fluid so that the effect that said basement membrane and said soft mode are bonded to each other; Second roller, said second roller will be separated into the blooming of said soft mode and patterning through the film of the said combination of said first roller; With the pre-coating device; Said pre-coating device carries out pre-coating to the said soft mode that sends from said second roller; Wherein said pre-coating device comprises deflector roll and at least one belt coating fluid filling unit; Said deflector roll moves to main apparatus for coating with said soft mode from said second roller, and said belt coating fluid filling unit is supplied to coating fluid the pattern of said soft mode when the said soft mode that contact just is being transmitted, and wherein said belt coating fluid filling unit comprises that surface coated has the conveyer belt of said coating fluid; With at least one band tension control roll, to move the said conveyer belt that contacts with said soft mode through the rotation of said band tension control roll.
Said conveyer belt can have the direction of transfer identical with said soft mode.
The direction of transfer of said conveyer belt can be opposite with the direction of transfer of said soft mode.
Said at least one band tension control roll can comprise a plurality of band tension control rolls.
Said at least one belt coating fluid filling unit can comprise a plurality of belt coating fluid filling unit.
Said band tension control roll can be set not to be connected with said deflector roll.
Said band tension control roll can have the direction of rotation identical with said deflector roll.
Said belt coating fluid filling unit can further comprise the unit that said coating fluid is applied to said conveyer belt surface.
Said optical sheet preparation facilities can further be included in the curing system between said first roller and said second roller.
Said optical sheet preparation facilities can further comprise the tension control roll of the tension force of controlling the said film that just is being transmitted.
According to a further aspect in the invention; The method for preparing optical sheet is provided; Said method comprises with the surface and scribbles the conveyer belt pre-coating soft mode of coating fluid, and the soft mode of said pre-coating is sent to main apparatus for coating coating fluid is injected said soft mode, and basement membrane is combined the film with the formation combination with the said soft mode that injects said coating fluid; The film of said combination is separated into the blooming of said soft mode and patterning; And said soft mode is back to the pre-coating device, to repeat said pre-coating, said pre-coating device comprises that surfaces coated has the said conveyer belt of said coating fluid.
The direction of transfer of said conveyer belt can be opposite with the direction of transfer of said soft mode.
Said optical sheet preparation facilities can further be included in the film that said soft mode is discharged the said combination of preceding sclerosis from said blooming.
Description of drawings
Will from come more to be expressly understood below in conjunction with the detailed description of accompanying drawing of the present invention more than with other purpose, characteristic and other advantage, wherein:
Fig. 1 is the sketch map of conventional optical sheet preparation facilities;
Fig. 2 is the sketch map of optical sheet preparation facilities according to one exemplary embodiment;
Fig. 3 is the sketch map of optical sheet preparation facilities according to one exemplary embodiment;
Fig. 4 is the sketch map of optical sheet preparation facilities according to one exemplary embodiment;
Fig. 5 is the sketch map of optical sheet preparation facilities according to one exemplary embodiment;
Fig. 6 is the light micrograph according to the optical sheet of embodiment 1 preparation;
Fig. 7 is the light micrograph according to the optical sheet of embodiment 2 preparations;
Fig. 8 is the light micrograph according to the optical sheet of Comparative Examples 1 preparation; And
Fig. 9 is the light micrograph according to the optical sheet of Comparative Examples 2 preparations.
The specific embodiment
Below, structure and operation according to the preferred embodiment of the present invention will be described in more detail.Therefore in the following description, some parts and aforementioned prior art are basic identical, even in different drawings, also represent with identical Reference numeral.
Fig. 2 is the sketch map of optical sheet preparation facilities according to one exemplary embodiment.As shown in the figure, the optical sheet preparation facilities is set so that soft mode 20 is rotated by home roll 100 and transmits when contact home roll 100.Soft mode 20 has pattern, and is processed by resin material usually.The shape of pattern does not have special restriction, and the various patterns that are usually used in optical sheet all can.For example, can use hemispherical microlens pattern, two sides convex pattern, prismatic pattern, half elliptic pattern and random convex-concave pattern, yet the shape of pattern needn't be limited to this.
Soft mode 20 contacts all or only a part of home roll 100, and also rotatable to contact another deflector roll or tension control roll to guarantee its easy rotation.
When soft mode 20 along the periphery of home roll 100 during rotation, coating fluid is filled in the pattern.In the present invention, through pre-coating device A pre-coating, after the promoting the circulation of qi of going forward side by side bubble is removed operation, carry out the main coating of soft mode 20 with main apparatus for coating at soft mode 20.
With to carry out pre-coating with the compression roller of pre-coating device with the volume to volume mode in the prior art different; In the present invention; Pre-coating device A comprises belt coating fluid filling unit, and in said belt coating fluid filling unit, the surface scribbles the band contact soft mode 20 of coating fluid with pre-coating soft mode 20.
In the exemplary embodiment, belt coating fluid filling unit comprises that the surface scribbles the conveyer belt 180 and the band tension control roll 170 and 171 that drives conveyer belt 180 of coating fluid.Though the preferred elastomeric material with chemical-resistant that uses does not have special restriction to the material and the thickness of conveyer belt 180.For example, can use rubber type of material.
Conveyer belt 180 can have flat surfaces, convex-concave surface or embossed surfaces.In another illustrative embodiments, conveyer belt 180 can not have pattern, or can on it contacts the surface of soft mode 20, have convexity (bosses) or hairbrush (brushes).
Though not shown, the unit that coating fluid is applied to conveyer belt 180 surfaces can further be provided.In the exemplary embodiment, can be extra the conventional coating fluid feeding unit of installation, coating fluid being supplied to part conveyer belt 180, and can coating fluid be delivered to continuously or discontinuously the surface of conveyer belt 180.
The driving direction of conveyer belt 180 can be identical with the moving direction of soft mode 20 or opposite.Preferably, to drive conveyer belt 180 in the opposite direction, to increase the spreading area of soft mode 20 with soft mode 20 senders.Rotation through band tension control roll 170 and 171 drives conveyer belt 180.
Band tension control roll 170 and 171 not only plays the effect that drives conveyer belt 180, and plays the effect of confirming the driving direction of conveyer belt 180 according to its direction of rotation.Preferably, band tension control roll 170 and 171 has the direction of rotation identical with following deflector roll 140,141 and 142, with the contact area of 20 of increase conveyer belt 180 and soft modes.In addition, a plurality of band tension control rolls can be provided, to regulate the tension force of conveyer belt 180.
Simultaneously, pre-coating device A comprises deflector roll 140,141 and 142, so that the soft mode 20 of contact conveyer belt 180 can be effectively mobile.Though the quantity of deflector roll is not had special restriction, can design deflector roll 140,141 and 142 with the contact area of increase with conveyer belt 180.For example, can use 2 to 5 deflector rolls.Deflector roll 140,141 and 142 not only plays to soft mode 20 provides suitable tension force, makes the effect of transferred soft mode 20 contact conveyer belts 180 with realization, and plays the effect that is directed at main apparatus for coating through the soft mode 20 of pre-coating device A.Can arrange deflector roll 140,141 and 142 to engage, can arrange that maybe deflector roll 140,141 and 142 is not to engage with band tension control roll 170 and 171 with band tension control roll 170 and 171.Preferably, deflector roll 140,141 and 142 does not engage with band tension control roll 170 and 171, applies uniform pressure with the soft mode 20 to contact conveyer belt 180.
After by above-mentioned pre-coating device A pre-coating, soft mode 20 is rotated by home roll 100, thereby is transferred into main apparatus for coating, promptly is used for the coating fluid injection device 110 of secondary coating.In order to carry out the secondary coating, coating fluid is injected the pattern of soft mode 20 with coating fluid injection device 110.Though the coating fluid injection phase to during the secondary coating (promptly main coating) does not have special qualification, usually at soft mode 20 and injection coating fluid before basement membrane 10 combines.Coating fluid injection device 110 has constituted main apparatus for coating, and can be installed by those skilled in the art at an easy rate.In addition, used coating fluid is well known to those skilled in the art in aforementioned pre-coating or the main coating.
After the main coating of accomplishing with coating fluid injection device 110, soft mode 20 is combined with basement membrane 10.In the exemplary embodiment, first roller 120 engages with home roll 100, and plays basement membrane 10 is pressed onto on the soft mode 20 so that the effect that basement membrane 10 and soft mode 20 are bonded to each other.
Those skilled in the art can be easy to confirm the distance of 100 of size and pressure and first roller 120 and the home rolls of first roller 120.
The film 11 that gained combines adopts the form with the basement membrane 10 that is inserted with coating fluid therebetween and lamination of soft mode 20.Binding film 11 is transmitted along home roll 100 by sclerosis simultaneously.Though not shown in the accompanying drawing, can curing system is provided at the upper reaches that separate binding film 11 positions.Curing system can be thermic devices or ultraviolet device, and can be easy to installed by those skilled in the art.In the exemplary embodiment, curing system can be provided between first roller 120 and second roller 130.
The separable blooming 12 of the film that has hardened for soft mode 20 and patterning.The blooming 12 of patterning is made up of basement membrane 10 and the coating liquid layer that has hardened on basement membrane 10.Before soft mode 20 and blooming 12 were peeled off, the layer that has hardened had the pattern of transfer from soft mode 20.If in a usual manner the blooming 12 of above-mentioned gained patterning is reeled, has then accomplished the preparation of optical sheet product.
Simultaneously, second roller 130 can be used for the film that has hardened is separated into the blooming 12 of soft mode 20 and patterning.In the exemplary embodiment, can provide second roller 130 when contacting, soft mode 20 is sent to pre-coating device A with soft mode 20.Those skilled in the art can be easy to install second roller 130.
To be sent to pre-coating device A by the soft mode 20 that second roller 130 is peeled off, and repeat aforesaid operations.
Fig. 3 to 5 is the sketch map of the optical sheet preparation facilities of different illustrative embodiments according to the present invention.As shown in the figure, the position of belt coating fluid filling unit can freely be confirmed, as long as it guarantees to implement pre-coating.In Fig. 3, conveyer belt 180 can be parallel to deflector roll 140,141 and 142.In addition, storage tank 190 can be below conveyer belt 180, to collect too much coating fluid.
In the optical sheet preparation facilities of Fig. 4, belt coating fluid filling unit is in 140 vertical placements of second roller 130 and deflector roll.In addition, with reference to Fig. 5, can there be angle belt coating fluid filling unit, with the contact area of 20 of further increase conveyer belt 180 and soft modes.
As stated, belt coating fluid filling unit can be positioned at each position, and can use a plurality of belt coating fluid filling unit.
Optical sheet preparation facilities of the present invention can further comprise the tension control roll (not shown) of the film tension force that control just is being transmitted.For example, tension control roll can as second roller 130 and deflector roll 140 between, or between deflector roll 142 and the home roll 100.In addition, those skilled in the art can be easy to implement the installation of this tension control roll.
Another aspect of the present invention relates to a kind of method for preparing optical sheet.
The optical sheet preparation method comprises the conveyer belt pre-coating soft mode that scribbles coating fluid with the surface; The soft mode of said pre-coating is sent to main apparatus for coating coating fluid is injected said soft mode; Basement membrane is combined the film form to combine with the soft mode that injects coating fluid, the film of said combination is separated into the blooming of said soft mode and patterning, and said soft mode is back to the pre-coating device; To repeat said pre-coating, said pre-coating device comprises that the surface scribbles the said conveyer belt of coating fluid.
Lip-deep coating fluid is supplied in the pattern of soft mode conveyer belt with it when the patterned surface of contact soft mode.
Preferably, the direction of transfer of the direction of transfer of conveyer belt and soft mode is opposite.
In the exemplary embodiment, the optical sheet preparation method can further be included in soft mode with make the film sclerosis that combines before blooming is peeled off.
Hereinafter, will structure of the present invention and operation be described through following preferred embodiment.Noticing that this does not mean that limit the invention to disclosed specific implementations.
Those skilled in the art will be easy to expect undocumented other structure of this paper and operation, and description of them will be omitted.
Embodiment 1
PETG (PET) film (trade name:, and use the soft mode that is manufactured from the same material with 250 μ mx1000mm size with microlens pattern KOLON H32P) as basement membrane.In addition, the acrylic resin (Ltd produces for trade name: ODR-01, Minuta Tech Co.) with UV-curable as coating fluid, prepares blooming to use device shown in Figure 2.At this moment, soft mode transmits with the speed of 5m/min.The pattern that makes blooming uses light microscope (trade name: ICAMSCOPESV32, SOMETECH Inc. produces) under 600 x magnifications, to take pictures.Light micrograph is presented among Fig. 6.
Embodiment 2
Embodiment 2 adopts and carries out with the foregoing description 1 identical method, and difference is that soft mode transmits with the speed of 10m/min.The light micrograph of pattern is shown in Fig. 7.
Comparative Examples 1
PETG (PET) film (trade name:, and use the soft mode that is manufactured from the same material with 250 μ mx1000mm size with microlens pattern KOLON H32P) as basement membrane.In addition, the acrylic resin (Ltd produces for trade name: ODR-01, Minuta Tech Co.) with UV-curable as coating fluid, prepares blooming to use device shown in Figure 1.At this moment, soft mode transmits with the speed of 5m/min.The pattern that makes blooming uses light microscope (trade name: ICAMSCOPESV32, SOMETECH Inc. produces) under 600 x magnifications, to take pictures.Light micrograph is presented among Fig. 8.
Comparative Examples 2
Comparative Examples 2 adopts carries out with above-mentioned Comparative Examples 1 identical method, and difference is that soft mode transmits with the speed of 10m/min.The light micrograph of pattern is presented among Fig. 9.
Table 1
L/S(m/min) The quantity of compression roller Belt filling unit
Embodiment 1 5 X O
Embodiment 2 10 X O
Comparative Examples 1 5 1 X
Comparative Examples 2 10 1 X
X: no O: have
Shown in Fig. 6 to 9, can confirm that embodiment 1 and 2 does not contain bubble basically, yet Comparative Examples 1 comprises bubble.In addition, can confirm that the Comparative Examples 2 that the mould transfer rate increases comprises great amount of bubbles.
Though disclose preferred implementation of the present invention for illustration purposes, it will be appreciated by one of skill in the art that under not deviating from the accompanying claims disclosed scope of the present invention and spirit, can carry out various modifications, interpolation and replacement.

Claims (13)

1. device that is used to prepare optical sheet comprises:
Soft mode with pattern;
Home roll, said home roll are arranged to the said soft mode of contact, and play that transmission has been marked with the soft mode of coating fluid and the effect of the basement membrane that combines with said soft mode;
First roller, said first roller engages with said home roll, and plays said basement membrane is pressed onto on the said soft mode that has been marked with coating fluid so that the effect that said basement membrane and said soft mode are bonded to each other;
Second roller, said second roller will be separated into the blooming of said soft mode and patterning through the film of the combination of said first roller; With
The pre-coating device, said pre-coating device carries out pre-coating to the said soft mode that sends from said second roller,
Wherein said pre-coating device comprises deflector roll and at least one belt coating fluid filling unit; Said deflector roll moves to main apparatus for coating with said soft mode from said second roller; Said belt coating fluid filling unit is supplied to coating fluid the pattern of said soft mode when the said soft mode that contact just is being transmitted, and
Wherein said belt coating fluid filling unit comprises that surface coated has conveyer belt and at least one band tension control roll of said coating fluid, to move the said conveyer belt that contacts with said soft mode through the rotation of said band tension control roll.
2. device as claimed in claim 1, wherein said conveyer belt have the direction of transfer identical with said soft mode.
3. device as claimed in claim 1, the direction of transfer of wherein said conveyer belt is opposite with the direction of transfer of said soft mode.
4. device as claimed in claim 1, wherein said at least one band tension control roll comprises a plurality of band tension control rolls.
5. device as claimed in claim 1, wherein said at least one belt coating fluid filling unit comprises a plurality of belt coating fluid filling unit.
6. device as claimed in claim 1, wherein said band tension control roll is in the position that does not engage with said deflector roll.
7. device as claimed in claim 1, wherein said band tension control roll has the direction of rotation identical with said deflector roll.
8. device as claimed in claim 1, wherein said belt coating fluid filling unit can further comprise the unit that said coating fluid is applied to said conveyer belt surface.
9. device as claimed in claim 1 further is included in the curing system between said first roller and said second roller.
10. device as claimed in claim 1 further comprises the tension control roll of the tension force of the film that control just is being transmitted.
11. a method that is used to prepare optical sheet comprises:
Scribble the conveyer belt pre-coating soft mode of coating fluid with the surface;
To be sent to main apparatus for coating through the soft mode of pre-coating coating fluid is injected said soft mode;
Basement membrane is combined with the said soft mode that injects said coating fluid to form the film of combination;
The film of said combination is separated into the blooming of said soft mode and patterning; And
Said soft mode is back to the pre-coating device, and to repeat said pre-coating, said pre-coating device comprises that surfaces coated has the said conveyer belt of said coating fluid.
12. method as claimed in claim 11, the direction of transfer of wherein said conveyer belt is opposite with the direction of transfer of said soft mode.
13. method as claimed in claim 11 further is included in the said soft mode and the blooming of said patterning is peeled off the said film that combines of preceding sclerosis.
CN201010624891.XA 2010-10-15 2010-12-31 Apparatus for optical sheet and method for preparing the optical sheet using the apparatus Active CN102451814B (en)

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KR1020100101119A KR101362865B1 (en) 2010-10-15 2010-10-15 Apparatus for Optical Sheet and Method for Preparing the Optical Sheet Using the Apparatus
KR10-2010-0101119 2010-10-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109328316A (en) * 2016-06-03 2019-02-12 株式会社Lms Method and apparatus for manufacturing optical sheet module
CN111495718A (en) * 2020-04-17 2020-08-07 天津日津科技股份有限公司 Audio flexible material with hydrophobic and oleophobic functions and preparation process and application thereof

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CN109328316A (en) * 2016-06-03 2019-02-12 株式会社Lms Method and apparatus for manufacturing optical sheet module
CN111495718A (en) * 2020-04-17 2020-08-07 天津日津科技股份有限公司 Audio flexible material with hydrophobic and oleophobic functions and preparation process and application thereof

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