TW201702656A - Polarizing film manufacturing apparatus, polarizing film manufacturing method, and polarizer reduces the defect rate of polarizing plate and increases production efficiency - Google Patents
Polarizing film manufacturing apparatus, polarizing film manufacturing method, and polarizer reduces the defect rate of polarizing plate and increases production efficiency Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 68
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- 239000012788 optical film Substances 0.000 claims description 81
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- 238000005304 joining Methods 0.000 claims description 25
- 238000011084 recovery Methods 0.000 claims description 18
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 239000002216 antistatic agent Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 12
- 230000005611 electricity Effects 0.000 description 9
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/26—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer which influences the bonding during the lamination process, e.g. release layers or pressure equalising layers
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- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/10—Removing layers, or parts of layers, mechanically or chemically
-
- 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
- G02B1/16—Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
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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
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding elements
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/26—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer which influences the bonding during the lamination process, e.g. release layers or pressure equalising layers
- B32B2037/268—Release layers
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Polarising Elements (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
本發明是關於一種偏光板的製造裝置、偏光板的製造方法和偏光板。The present invention relates to a device for manufacturing a polarizing plate, a method for producing a polarizing plate, and a polarizing plate.
一般地，偏光板使用水系黏接劑或黏合劑將複數個膜例如偏光膜、相位差膜等接合而構成。另一方面，將偏光膜和與其貼合的膜接合而製造偏光板的工序藉由手操作進行，或者藉由將膜供給於將複數個輥組合的裝置而進行。例如，作為在偏光器的兩面將透明保護膜接合的方法，採用了在一對輥間搬運偏光器的同時在其兩面搬運透明保護膜而同時將透明保護膜貼合的同時層壓法；在一對輥間搬運偏光器的同時在其單面搬運透明保護膜而貼合後，接下來在偏光器的另一單面將透明保護膜貼合的逐次層壓法。 先前技術文獻 專利文獻Generally, the polarizing plate is formed by joining a plurality of films such as a polarizing film, a retardation film, or the like using a water-based adhesive or a binder. On the other hand, the step of bonding the polarizing film and the film to be bonded thereto to produce a polarizing plate is performed by a hand operation or by supplying the film to a device in which a plurality of rolls are combined. For example, as a method of joining the transparent protective films on both surfaces of the polarizer, a lamination method is employed in which a transparent protective film is transported on both sides while a polarizer is being transported between a pair of rolls while the transparent protective film is bonded; A one-step lamination method in which a transparent protective film is bonded to the other side of the polarizer after the pair of rollers are conveyed with the transparent protective film on one side and the polarizer is bonded. Prior Technical Literature Patent Literature
專利文獻1：日本特開2004-053773號公報Patent Document 1: Japanese Laid-Open Patent Publication No. 2004-053773
發明所要解決的課題 本發明的目的在於提供採用黏著帶容易地將黏貼於偏光膜的偏光膜離型紙剝離的偏光板的製造裝置、偏光板的製造方法和偏光板。DISCLOSURE OF THE INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION An object of the present invention is to provide a manufacturing apparatus of a polarizing plate, a method of producing a polarizing plate, and a polarizing plate, which are capable of easily peeling off a polarizing film release paper adhered to a polarizing film by an adhesive tape.
另外，本發明的目的在於提供能夠調節偏光膜與光學膜的延伸方向或顯示光學特性的方向所成的角度進行接合的偏光板的製造裝置、偏光板的製造方法，以及採用該構成接合的偏光板。Further, an object of the present invention is to provide a polarizing plate manufacturing apparatus capable of adjusting an angle between a polarizing film and an extending direction of an optical film or a direction in which optical characteristics are displayed, a method of manufacturing a polarizing plate, and a polarizing film bonded by the configuration. board.
進而，本發明的目的在於提供在層疊狀態下將各個偏光板分離時能夠防止因靜電導致的黏上的偏光板、用於製造該偏光板的偏光板的製造裝置以及偏光板的製造方法。Further, an object of the present invention is to provide a polarizing plate capable of preventing adhesion due to static electricity when separating respective polarizing plates in a laminated state, a manufacturing apparatus of a polarizing plate for manufacturing the polarizing plate, and a method of manufacturing a polarizing plate.
本發明的其他的目的和方法能夠藉由以下的說明而理解，能夠藉由本發明的實施方式進一步明確地理解。應予說明，本發明的目的和優點能夠藉由申請專利範圍中所示的手段及其組合實現。 用於解決課題的手段Other objects and methods of the present invention can be understood from the following description, and can be more clearly understood from the embodiments of the present invention. It should be noted that the objects and advantages of the present invention can be realized by the means shown in the claims and the combinations thereof. Means for solving problems
本發明涉及的偏光板的製造裝置包含：偏光膜搬運部，搬運偏光器和在該偏光器的一側黏貼有離型紙的片狀的偏光膜；黏著帶供給部，供給用於將上述離型紙剝離的黏著帶；以及黏貼壓料輥，將上述離型紙和上述黏著帶壓接。The apparatus for manufacturing a polarizing plate according to the present invention includes a polarizing film conveying unit, a transfer polarizer, and a sheet-shaped polarizing film having a release paper adhered to one side of the polarizer; and an adhesive tape supply unit for supplying the release paper The peeling adhesive tape; and the adhesive nip roll, the above release paper and the adhesive tape are crimped.
上述偏光膜搬運部能夠在將上述片狀的偏光膜的離型紙黏貼於上述偏光器的下側的狀態下進行搬運，上述黏著帶供給部能夠從上述偏光膜的下側供給用於將上述離型紙剝離的黏著帶。The polarizing film conveying unit can convey the release sheet of the sheet-shaped polarizing film in a state of being attached to the lower side of the polarizer, and the adhesive tape supply unit can be supplied from the lower side of the polarizing film to separate the separation film. Adhesive tape for peeling off the type of paper.
能夠將上述片狀的偏光膜的離型紙黏貼於上述偏光器的下側，從上述偏光膜的下側供給用於將上述離型紙剝離的黏著帶。The release paper of the sheet-shaped polarizing film can be adhered to the lower side of the polarizer, and an adhesive tape for peeling off the release paper can be supplied from the lower side of the polarizing film.
能夠更包含：第1回收輥，用於將上述離型紙回收，上述第1回收輥將上述黏著帶和壓接於該黏著帶的上述離型紙回收。Further, the first recovery roller may be configured to recover the release paper, and the first recovery roller may collect the adhesive tape and the release paper that is pressure-bonded to the adhesive tape.
能夠更包含：離型導引裝置，引導對上述第1回收輥的回收。Further, it can further include: a release guide that guides the recovery of the first recovery roller.
黏貼於上述離型紙的上述黏著帶能夠黏貼於上述離型紙的一部分或全部。The adhesive tape adhered to the release paper can be adhered to a part or all of the release paper.
上述黏著帶為具有比上述離型紙窄的寬度的複數個帶，或者也可以為具有與上述離型紙相同或比其大的寬度的單數個帶。The adhesive tape may be a plurality of tapes having a width narrower than the release paper, or may be a single tape having the same width as or larger than the release paper.
上述黏著帶供給部能夠包含：黏著帶卷取輥，將上述黏著帶卷取；以及黏著帶經由輥部，從上述黏著帶卷取輥供給的黏著帶在被供給到上述黏貼壓料輥之前經由。The adhesive tape supply unit may include an adhesive tape take-up roll that winds the adhesive tape, and an adhesive tape that passes through the roll portion, and the adhesive tape supplied from the adhesive tape take-up roll is supplied to the adhesive nip roll before being supplied thereto. .
上述偏光膜搬運部能夠包含安置並搬運上述偏光膜的傳送帶，包含一個或複數個吸引部。The polarizing film conveying portion may include a conveying belt that houses and conveys the polarizing film, and includes one or a plurality of suction portions.
更包含：離型導引裝置，將上述壓接的上述離型紙和上述黏著帶從上述偏光器剝離的同時引導剝離的膜的回收，上述離型導引裝置與上述接合壓料輥的間隔也可以為超過0mm且在80mm以下。Furthermore, the release guide device guides the release of the peeled film while peeling the pressure-sensitive release paper and the adhesive tape from the polarizer, and the distance between the release guide and the bonding nip roller is also It may be more than 0 mm and less than 80 mm.
上述黏貼壓料輥與上述接合壓料輥的間隔也可以為200mm以上、600mm以下。The distance between the adhesive nip roll and the joining nip roll may be 200 mm or more and 600 mm or less.
本發明涉及的偏光板的製造方法中，將包含偏光器和黏貼於該偏光器的一側的離型紙的偏光膜搬運到黏貼壓料輥側，藉由上述黏貼壓料輥將被供給到上述黏貼壓料輥側的黏著帶壓接於搬運到上述黏貼壓料輥側的偏光膜。In the method for producing a polarizing plate according to the present invention, a polarizing film including a polarizer and a release paper adhered to one side of the polarizer is transported to the side of the adhesive nip roll, and the adhesive nip roll is supplied to the above. The adhesive tape on the side of the adhesive nip roll is pressure-bonded to the polarizing film conveyed to the side of the adhesive nip roll.
能夠將上述黏著帶和壓接黏接於該黏著帶的上述離型紙從上述偏光膜剝離而一起回收。The release paper which is adhered to the pressure-sensitive adhesive tape and the pressure-sensitive adhesive tape can be peeled off from the polarizing film and collected together.
上述黏著帶和上述離型紙的回收能夠在藉由離型導引裝置引導後，藉由對上述第1回收輥的回收而進行。The recovery of the adhesive tape and the release paper can be carried out by the collection of the first recovery roller after being guided by the release guide.
能夠使上述黏著帶與上述離型紙相同大小或比其大。The adhesive tape can be made to be the same size as or larger than the release paper.
能夠藉由接合壓料輥將光學膜接合於剝離了上述離型紙的上述偏光膜。The optical film can be bonded to the above-mentioned polarizing film from which the release paper is peeled off by a bonding nip roll.
上述離型導引裝置與上述接合壓料輥的間隔可以為超過0mm且在80mm以下。The distance between the release guide and the engagement nip roller may be more than 0 mm and less than 80 mm.
上述黏貼壓料輥與上述接合壓料輥的間隔可以為200mm以上、600mm以下。The distance between the adhesive nip roll and the joining nip roll may be 200 mm or more and 600 mm or less.
上述黏著帶為具有比上述離型紙窄的寬度的複數個帶，或者也可以是具有與上述離型紙相同或比其大的寬度的單數個帶。The adhesive tape may be a plurality of tapes having a width narrower than the release paper, or may be a single tape having the same width as or larger than the release paper.
對於上述光學膜，能夠在接合於上述偏光膜之前實施抗靜電處理。With respect to the above optical film, it is possible to perform an antistatic treatment before being bonded to the above polarizing film.
能夠將上述光學膜接合到上述偏光膜的剝離了離型紙的一側。The optical film can be bonded to the side of the polarizing film from which the release paper is peeled off.
上述光學膜的抗靜電處理也可以是層疊抗靜電塗層的處理。The antistatic treatment of the above optical film may also be a treatment of laminating an antistatic coating.
上述偏光膜能夠包含第1保護層和偏光器。The polarizing film can include a first protective layer and a polarizer.
上述光學膜也可以為相位差層。The above optical film may also be a retardation layer.
本發明涉及的偏光板能夠藉由上述的偏光板的製造方法來製造。The polarizing plate according to the present invention can be produced by the above-described method for producing a polarizing plate.
本發明涉及的偏光板能夠依次包含第1保護層、偏光器以及第2保護層，能夠在上述第2保護層的偏光器接合面的相反側進一步包含進行了抗靜電處理的保護膜。The polarizing plate according to the present invention may include the first protective layer, the polarizer, and the second protective layer in this order, and may further include a protective film subjected to antistatic treatment on the side opposite to the polarizer bonding surface of the second protective layer.
上述第2保護層也可以是相位差層。The second protective layer may be a retardation layer.
上述抗靜電處理也可以是抗靜電塗層處理。The antistatic treatment described above may also be an antistatic coating treatment.
上述進行了抗靜電處理的保護膜能夠在內部包含抗靜電劑。 發明的效果The protective film subjected to the above antistatic treatment can contain an antistatic agent inside. Effect of the invention
根據本發明的偏光板的製造裝置，能夠防止只將偏光板中可包含的離型紙的一部分剝離。According to the apparatus for manufacturing a polarizing plate of the present invention, it is possible to prevent only a part of the release paper which can be contained in the polarizing plate from being peeled off.
另外，根據本發明，能夠減少偏光板的不良率，使生產效率提高。Further, according to the present invention, the defective ratio of the polarizing plate can be reduced, and the production efficiency can be improved.
進而，根據本發明的偏光板，在層疊狀態下將各個偏光板分離時，能夠防止因靜電導致的黏上，同時能夠使偏光板的分離變得容易。Further, according to the polarizing plate of the present invention, when the respective polarizing plates are separated in the laminated state, adhesion due to static electricity can be prevented, and separation of the polarizing plate can be facilitated.
進而，根據本發明，能夠調節偏光膜與光學膜的延伸方向或顯示光學特性的方向所成的角度。Further, according to the present invention, it is possible to adjust the angle formed by the direction in which the polarizing film extends in the optical film or the direction in which the optical characteristics are displayed.
以下參照附圖對本發明的一實施方式具體地說明。An embodiment of the present invention will be specifically described below with reference to the drawings.
對本發明進行說明時，判斷與關聯的公知技術有關的具體的說明有可能使本發明的要點不明確的情況下，省略其詳細的說明。另外，後述的用語是考慮本發明中的功能所定義的用語，可因使用者、運用者的意圖或慣例等而異。因此，其定義應基於本說明書全部的內容來進行。In the description of the present invention, the detailed description of the known related art may be omitted, and the detailed description of the present invention may be omitted. Further, the term to be described later is a term defined by considering the function in the present invention, and may be different depending on the intention of the user, the user, or the convention. Therefore, its definition should be based on the entire contents of this specification.
本發明的技術思想由申請專利範圍決定。另外，以下的實施方式只不過是用於對本領域技術人員有效地說明具有進步性的本發明的技術思想的一手段。The technical idea of the present invention is determined by the scope of the patent application. Further, the following embodiments are merely means for effectively explaining the technical idea of the present invention to those skilled in the art.
第1圖為表示本發明的實施方式涉及的偏光板的製造裝置的圖。Fig. 1 is a view showing a manufacturing apparatus of a polarizing plate according to an embodiment of the present invention.
如第1圖所示，本發明的實施方式涉及的偏光板的製造裝置1在偏光板的製造過程中，為了利用黏著帶1-3容易地將離型紙1-2剝離，能夠將黏著帶1-3壓接和黏貼於離型紙1-2。因此，偏光板的製造裝置1能夠包含偏光膜搬運部3和黏著帶供給部10、14a和黏貼壓料輥100。As shown in Fig. 1, in the manufacturing apparatus 1 for a polarizing plate according to the embodiment of the present invention, in order to easily peel the release paper 1-2 by the adhesive tape 1-3 during the manufacturing process of the polarizing plate, the adhesive tape 1 can be removed. -3 Crimp and adhere to release liner 1-2. Therefore, the polarizing plate manufacturing apparatus 1 can include the polarizing film conveying part 3, the adhesive tape supply parts 10 and 14a, and the adhesive nip roll 100.
在此，本發明的實施方式涉及的偏光板的製造裝置1中，能夠調節偏光膜與光學膜的延伸方向或顯示光學特性的方向所成的角度。具體地，如第1圖所示，偏光膜搬運部3搬運被切斷的片（sheet）狀的偏光膜1-1，將從光學膜卷取輥20以卷材（roll）的形態供給的光學膜1-4與所搬運的片狀的偏光膜1-1接合。即，由於以片材對卷材（sheet to roll）的形態將偏光膜1-1與光學膜1-4接合，因此藉由被切斷的片狀的偏光器1-1的延伸方向或顯示光學特性的方向的調節，能夠調節偏光膜與光學膜的光學特性的方向所成的角度。在此，偏光膜與光學膜能夠具有相位差，之間的角也可以為45度。Here, in the apparatus 1 for manufacturing a polarizing plate according to the embodiment of the present invention, the angle between the polarizing film and the direction in which the optical film extends or the direction in which the optical characteristics are displayed can be adjusted. Specifically, as shown in Fig. 1, the polarizing film conveying unit 3 conveys the sheet-shaped polarizing film 1-1 which is cut, and supplies the optical film winding roller 20 in the form of a roll. The optical film 1-4 is bonded to the sheet-shaped polarizing film 1-1 to be conveyed. That is, since the polarizing film 1-1 and the optical film 1-4 are joined in the form of a sheet to roll, the extending direction or display of the sheet-shaped polarizer 1-1 that is cut is formed. The adjustment of the direction of the optical characteristic can adjust the angle formed by the direction of the optical characteristics of the polarizing film and the optical film. Here, the polarizing film and the optical film can have a phase difference, and the angle between them can be 45 degrees.
首先，偏光膜搬運部3能夠在偏光器1-1與離型紙1-2黏接的狀態下搬運到偏光板的製造裝置1。偏光器1-1為用於實現偏光板中的偏光的功能的膜，離型紙1-2能夠在偏光器1-1的一面（SP面）經由黏接劑與偏光器1-1結合。以下，“偏光膜”1-1主要意味著將離型紙1-2剝離的偏光器1-1。不過，為了說明的方便，將偏光器1-1和黏貼於該偏光器1-1的離型紙1-2也總稱為“偏光膜”。First, the polarizing film conveying unit 3 can be transported to the manufacturing apparatus 1 of the polarizing plate in a state where the polarizer 1-1 and the release paper 1-2 are bonded to each other. The polarizer 1-1 is a film for realizing the function of polarized light in the polarizing plate, and the release paper 1-2 can be bonded to the polarizer 1-1 via the adhesive on one surface (SP surface) of the polarizer 1-1. Hereinafter, the "polarizing film" 1-1 mainly means the polarizer 1-1 which peels the release paper 1-2. However, for convenience of explanation, the polarizer 1-1 and the release paper 1-2 adhered to the polarizer 1-1 are also collectively referred to as "polarizing film".
另一方面，偏光膜搬運部3能夠包含能夠安置且搬運結合有離型紙1-2的偏光膜1-1的傳送帶。將偏光膜1-1在傳送帶上安置並搬運。雖然沒有圖示，但傳送帶中也可以設置抽吸孔以致後述的吸引部40使偏光膜1-1安置。On the other hand, the polarizing film conveying portion 3 can include a conveying belt capable of arranging and conveying the polarizing film 1-1 to which the release paper 1-2 is bonded. The polarizing film 1-1 is placed and carried on a conveyor belt. Although not shown, a suction hole may be provided in the conveyor belt so that the attraction portion 40, which will be described later, places the polarizing film 1-1.
另外，為了使偏光膜1-1確實地安置在傳送帶，能夠包含位於傳送帶的下側、抽吸空氣的吸引部40。上述吸引部40能夠藉由負壓的形成而抽吸周圍的空氣。上述吸引部40將偏光膜1-1安置固定於傳送帶，藉由傳送帶的迴圈，能夠穩定地搬運安置的偏光膜1-1。由此，能夠在提高工序的效率的同時降低不良率。即，在採用傳送帶的搬運過程中沒有將偏光膜1-1穩定地固定的情況下，可在偏光膜1-1中發生捲曲（curl）等變形。這最終在偏光板的接合過程中引發接合失誤，使工序的效率降低，成為不良品的產生原因。應予說明，吸引部40能夠在傳送帶的下側設置1個或複數個。Further, in order to reliably position the polarizing film 1-1 on the conveyor belt, it is possible to include the suction portion 40 that sucks the air on the lower side of the conveyor belt. The suction portion 40 can suck the surrounding air by the formation of the negative pressure. The attraction portion 40 fixes and fixes the polarizing film 1-1 to the conveyor belt, and the polarizing film 1-1 can be stably conveyed by the loop of the conveyor belt. Thereby, the defect rate can be reduced while improving the efficiency of the process. In other words, in the case where the polarizing film 1-1 is not stably fixed during the conveyance by the conveyor, deformation such as curl can be generated in the polarizing film 1-1. This eventually causes a bonding error during the bonding process of the polarizing plate, and the efficiency of the process is lowered, which causes a defective product. Incidentally, the suction unit 40 can be provided one or more on the lower side of the conveyor belt.
黏著帶供給部能夠供給用於將離型紙1-2剝離的黏著帶。能夠在片狀的偏光器1-1的下側黏貼離型紙，從偏光膜1-1的下側供給用於將離型紙1-2剝離的黏著帶1-3。黏著帶供給部能夠包含：將黏著帶1-3卷取的黏著帶卷取輥；和為了將從該黏著帶卷取輥供給的黏著帶供給到後述的黏貼壓料輥100而經由的黏著帶經由輥部14。在此，黏著帶經由輥部14也可以為1個或複數個，能夠多樣地設定其數目和位置。The adhesive tape supply unit can supply an adhesive tape for peeling off the release paper 1-2. The release paper can be adhered to the lower side of the sheet-shaped polarizer 1-1, and the adhesive tape 1-3 for peeling the release paper 1-2 can be supplied from the lower side of the polarizing film 1-1. The adhesive tape supply unit may include an adhesive tape take-up roll that winds up the adhesive tape 1-3, and an adhesive tape that is supplied to the adhesive nip roll 100 to be described later in order to supply the adhesive tape supplied from the adhesive tape take-up roll. Via the roller portion 14. Here, the adhesive tape may be one or a plurality of the roller portions 14, and the number and position thereof can be variously set.
黏貼壓料輥100，為了將黏貼於偏光器1-1的離型紙1-2剝離，能夠將黏著帶1-3壓接和黏接於離型紙1-2。在將離型紙1-2和黏著帶1-3壓接的狀態下藉由黏貼壓料輥100間之後，能夠將離型紙1-2和黏著帶1-3一起剝離。在此，為了將剝離的離型紙1-2和黏著帶1-3回收，能夠設置第1回收輥12。另外，本發明的實施方式涉及的偏光板的製造裝置1能夠包含進行引導以將剝離的離型紙1-2和黏著帶1-3回收到第1回收輥12的離型導引裝置。應予說明，黏貼於離型紙1-2的黏著帶能夠黏貼於離型紙1-2的一部分或全部。另外，黏著帶1-3可以以與離型紙1-2相同的大小設置，黏貼於離型紙1-2，也可以以超過離型紙1-2的大小的大小設置，穩定地黏貼於離型紙1-2的全部。The adhesive nip roll 100 is capable of crimping and adhering the adhesive tape 1-3 to the release paper 1-2 in order to peel off the release paper 1-2 adhered to the polarizer 1-1. After the release paper 1-2 and the adhesive tape 1-3 are pressure-bonded, the release paper 1-2 and the adhesive tape 1-3 can be peeled off together by sticking between the nip rolls 100. Here, in order to collect the peeled release paper 1-2 and the adhesive tape 1-3, the 1st collection roll 12 can be provided. Further, the apparatus 1 for manufacturing a polarizing plate according to the embodiment of the present invention can include a release guide that guides the collected release paper 1-2 and the adhesive tape 1-3 to the first recovery roller 12. It should be noted that the adhesive tape adhered to the release paper 1-2 can be adhered to a part or all of the release paper 1-2. In addition, the adhesive tape 1-3 can be disposed in the same size as the release paper 1-2, adhered to the release paper 1-2, or can be set to exceed the size of the release paper 1-2, and is stably adhered to the release paper 1 -2 of all.
以下對從偏光膜將離型紙1-2剝離後將光學膜1-4接合的過程進行說明。Hereinafter, a process of joining the optical film 1-4 after peeling off the release paper 1-2 from the polarizing film will be described.
如上述那樣，本發明的實施方式涉及的偏光板的製造裝置1為了將光學膜1-4接合於上述偏光膜1-1，能夠包含接合壓料輥200和角度形成輥300。As described above, the apparatus 1 for manufacturing a polarizing plate according to the embodiment of the present invention can include the bonding nip roll 200 and the angle forming roll 300 in order to bond the optical film 1-4 to the polarizing film 1-1.
接合壓料輥200將光學膜1-4接合於從偏光膜搬運部3搬運而來的偏光膜1-1。即，將偏光膜1-1和光學膜1-4供給到接合壓料輥200中所含的輥間，藉由輥的壓接能夠將偏光器1-1和光學膜1-4接合。The bonding nip roll 200 bonds the optical film 1-4 to the polarizing film 1-1 conveyed from the polarizing film conveying unit 3. That is, the polarizing film 1-1 and the optical film 1-4 are supplied between the rolls contained in the joining nip roll 200, and the polarizer 1-1 and the optical film 1-4 can be joined by pressure bonding of the rolls.
另外，接合壓料輥200與上述的黏貼壓料輥100的間隔也可以為200mm以上、600mm以下。例如，接合壓料輥200與黏貼壓料輥100的間隔也可以為400mm。接合壓料輥200與黏貼壓料輥100的間隔如果不到200mm，黏貼壓料輥100與接合壓料輥200之間的離型紙1-2的導引和剝離變得不順利，如果超過600mm，有時在搬運過程中沒有將偏光膜的方向固定而偏離，隨著裝置大型化，異物附著的可能性增大。Further, the interval between the joining nip roll 200 and the above-described pasting nip roll 100 may be 200 mm or more and 600 mm or less. For example, the spacing between the joining nip roll 200 and the pasting nip roll 100 may also be 400 mm. If the interval between the bonding nip roll 200 and the pasting nip roll 100 is less than 200 mm, the guiding and peeling of the release paper 1-2 between the bonding nip roll 100 and the joining nip roll 200 may not be smooth, if it exceeds 600 mm. In some cases, the direction of the polarizing film is not fixed and deviated during transportation, and as the device is enlarged, the possibility of foreign matter adhering increases.
進而，上述的離型導引裝置60與接合壓料輥200的間隔也可以為超過0mm且在80mm以下。例如，離型導引裝置60與接合壓料輥200的間隔也可以為40mm。即，將剝離的離型紙1-2和與其黏接的黏著帶1-3一起藉由離型導引裝置60引導而移動到第1回收輥12時，藉由縮短離型導引裝置60與接合壓料輥200之間的間隔，能夠在剝離和偏光膜1-1向接合壓料輥200的移動時方向沒有偏離地順利地搬運。在此，如果在離型導引裝置60與接合壓料輥200之間不具有間隔，則不能進行離型紙1-2的順利的回收，如果超過80mm，有時發生偏光膜1-1的變形或翹曲，損害工序的穩定性。Further, the distance between the above-described release guide device 60 and the joining nip roll 200 may be more than 0 mm and not more than 80 mm. For example, the distance between the release guide 60 and the joining nip roll 200 may also be 40 mm. That is, when the release release paper 1-2 and the adhesive tape 1-3 adhered thereto are guided by the release guide 60 to move to the first recovery roller 12, by shortening the release guide 60 and The interval between the joining nip rolls 200 can be smoothly conveyed without peeling and the direction in which the polarizing film 1-1 is moved to the joining nip roll 200. Here, if there is no space between the release guide 60 and the joining nip roll 200, smooth recovery of the release paper 1-2 cannot be performed, and if it exceeds 80 mm, deformation of the polarizing film 1-1 sometimes occurs. Or warping, impairing the stability of the process.
此時，能夠經由角度形成輥300而供給為了與偏光膜1-1接合而被供給到接合壓料輥200的光學膜1-4。At this time, the optical film 1-4 supplied to the bonding nip roll 200 to be bonded to the polarizing film 1-1 can be supplied via the angle forming roller 300.
角度形成輥300能夠在光學膜1-4相對於重力方向的相反方向成0度或銳角的方向上供給到接合壓料輥200側。能夠使角度形成輥300的初期設定位置為接合壓料輥200的垂直下方，可以以接合壓料輥200為基準進行前後移動。在此，角度形成輥300的移動角度能夠設為向前方的移動時5度以內，向後方的移動時6度以內的範圍。第2圖為表示第1圖的偏光板的製造裝置中的接合壓料輥200和角度形成輥300的位置關係的圖。The angle forming roller 300 can be supplied to the joining nip roll 200 side in a direction in which the optical film 1-4 is at an angle of 0 degrees or an acute angle with respect to the direction of gravity. The initial setting position of the angle forming roller 300 can be vertically below the joining nip roll 200, and can be moved back and forth with reference to the joining nip roll 200. Here, the movement angle of the angle forming roller 300 can be set to be within 5 degrees of the forward movement and within 6 degrees of the backward movement. Fig. 2 is a view showing the positional relationship between the joining nip roll 200 and the angle forming roll 300 in the apparatus for manufacturing a polarizing plate of Fig. 1.
另一方面，本發明的實施方式涉及的偏光板的製造裝置1能夠進一步包含用於對藉由偏光膜搬運部3搬運的光學膜1-4塗佈抗靜電液的抗靜電處理部30。該實施方式中，偏光器1-1能夠包含偏光器、和在該偏光器的一側接合的保護層（第1保護層）、或分別位於兩側或分別在兩側接合的保護層（第1保護層和第2保護層）。在此，在偏光器1-1中只包含第1保護層的情況下，能夠在使第1保護層接合的面的相反側面將光學膜1-4接合。另外，偏光器1-1包含第2保護層的情況下，能夠在第2保護層的外側將光學膜1-4接合。能夠在對上述光學膜1-4進行了抗靜電處理後進行接合。因此，根據本發明的實施方式的偏光板從層疊的狀態為了使用而分離為各個偏光板時，能夠減少或防止與鄰接地層疊的其他偏光板的靜電的發生。On the other hand, the apparatus 1 for manufacturing a polarizing plate according to the embodiment of the present invention can further include an antistatic treatment unit 30 for applying an antistatic liquid to the optical film 1-4 conveyed by the polarizing film conveying unit 3. In this embodiment, the polarizer 1-1 can include a polarizer, a protective layer (first protective layer) joined to one side of the polarizer, or a protective layer that is respectively disposed on both sides or joined on both sides (No. 1 protective layer and 2nd protective layer). Here, when the polarizer 1-1 includes only the first protective layer, the optical film 1-4 can be bonded to the opposite side surface of the surface on which the first protective layer is bonded. Further, when the polarizer 1-1 includes the second protective layer, the optical film 1-4 can be bonded to the outside of the second protective layer. The optical film 1-4 can be bonded after being subjected to antistatic treatment. Therefore, when the polarizing plate according to the embodiment of the present invention is separated into the respective polarizing plates from the stacked state for use, it is possible to reduce or prevent the occurrence of static electricity from the other polarizing plates laminated adjacently.
抗靜電處理部30能夠包含將抗靜電液滴排出的抗靜電液滴排出部32和對排出的抗靜電液進行刮擦（swipe）的刮擦部34。抗靜電液滴排出部32能夠將用於抗靜電處理的抗靜電液以液滴狀排出到光學膜1-4上。抗靜電液滴排出部32能夠在與光學膜1-4的寬度方向（與光學膜的搬運方向垂直的方向）或光學膜1-4的搬運方向傾斜的方向上往復移動。由此，能夠在整個光學膜1-4塗佈抗靜電液。接下來，刮擦部34起到將排出到光學膜1-4（具體地，光學膜的sp面）的抗靜電液在光學膜1-4上全面地塗佈的作用。即，刮擦部34能夠利用柔軟的材質的刷部36（布等）對光學膜1-4進行刮擦（swipe）。因此，刷部36的一端與排出有抗靜電液的光學膜1-4進行面接觸，藉由光學膜1-4的搬運，能夠對光學膜1-4進行刮擦。The antistatic treatment portion 30 can include an antistatic liquid droplet discharge portion 32 that discharges the antistatic liquid droplets, and a scratch portion 34 that wipes the discharged antistatic liquid. The antistatic liquid droplet discharge portion 32 can discharge the antistatic liquid for antistatic treatment onto the optical film 1-4 in the form of droplets. The antistatic liquid droplet discharge portion 32 can reciprocate in a direction oblique to the width direction of the optical film 1-4 (direction perpendicular to the conveyance direction of the optical film) or the conveyance direction of the optical film 1-4. Thereby, the antistatic liquid can be applied to the entire optical film 1-4. Next, the scraping portion 34 functions to completely coat the antistatic liquid discharged to the optical film 1-4 (specifically, the sp surface of the optical film) on the optical film 1-4. In other words, the wiping portion 34 can wipe the optical film 1-4 with the brush portion 36 (cloth or the like) of a soft material. Therefore, one end of the brush portion 36 is in surface contact with the optical film 1-4 from which the antistatic liquid is discharged, and the optical film 1-4 can be scraped by the conveyance of the optical film 1-4.
如上述那樣，對於藉由這樣的抗靜電處理部30處理的偏光板，使用前的層疊狀態下的各個光學膜1-4的分離容易。即，能夠防止光學膜1-4之間由於靜電而相互地靜電吸附，能夠提高光學膜1-4的使用時的工序效率。As described above, the polarizing plate processed by the antistatic treatment unit 30 is easy to separate the respective optical films 1-4 in the laminated state before use. In other words, it is possible to prevent electrostatic adsorption between the optical films 1-4 due to static electricity, and it is possible to improve the process efficiency in the use of the optical film 1-4.
在上述那樣的本發明涉及的偏光板的製造裝置1中，從偏光膜搬運部3分別將偏光器1-1和光學膜1-4搬運到黏貼壓料輥100和接合壓料輥200時，按照以下的步驟進行作業。In the apparatus 1 for manufacturing a polarizing plate according to the present invention as described above, when the polarizer 1-1 and the optical film 1-4 are respectively transported from the polarizing film transport unit 3 to the adhesive nip roll 100 and the bonding nip roll 200, Follow the steps below to work.
第3圖為第1圖中所示的偏光板的製造裝置中表示將偏光器1-1與離型紙黏接的狀態的狀態圖，第4圖為表示第1圖中所示的離型紙與黏著帶黏貼的狀態的狀態圖，第5圖為表示從第1圖中所示的離型紙與黏著帶黏貼的狀態剝離的樣子的狀態圖，第6圖為表示將偏光膜和光學膜黏貼的狀態的狀態圖。Fig. 3 is a view showing a state in which the polarizer 1-1 is bonded to the release paper in the apparatus for manufacturing a polarizing plate shown in Fig. 1, and Fig. 4 is a view showing the release paper shown in Fig. 1. A state diagram of a state in which the adhesive tape is adhered, and FIG. 5 is a state diagram showing a state in which the release paper and the adhesive tape are adhered from the state shown in FIG. 1, and FIG. 6 is a view showing a state in which the polarizing film and the optical film are pasted. State diagram of the state.
首先，如第3圖所示，將偏光器1-1與離型紙1-2黏貼的偏光膜1-1和1-2藉由偏光膜搬運部3被搬運到黏貼壓料輥100側。然後，偏光器1-1與離型紙1-2通過黏貼壓料輥100中所含的輥之間。在此，偏光器1-1與離型紙1-2通過黏貼壓料輥100間時，能夠藉由黏貼壓料輥100將從黏著帶卷取輥10供給的黏著帶1-3壓接和黏貼於離型紙1-2。這樣設置的偏光器1-1、離型紙1-2和黏著帶1-3如第4圖所示。這樣，通過黏貼壓料輥100間而將黏著帶1-3和離型紙1-2黏貼，從而能夠防止在偏光器1-1中發生捲曲（curl）等變形。進而，藉由強化黏著帶1-3與離型紙1-2的黏接，能夠更穩定地進行黏著帶1-3的黏接誘導的離型紙1-2的剝離。First, as shown in FIG. 3, the polarizing films 1-1 and 1-2 to which the polarizer 1-1 and the release paper 1-2 are adhered are conveyed to the side of the adhesive nip roll 100 by the polarizing film conveying unit 3. Then, the polarizer 1-1 and the release paper 1-2 are passed between the rollers contained in the nip roll 100. Here, when the polarizer 1-1 and the release paper 1-2 are adhered between the nip rolls 100, the adhesive tape 1-3 supplied from the adhesive tape take-up roll 10 can be crimped and pasted by the adhesive nip roll 100. On the release paper 1-2. The polarizer 1-1, the release paper 1-2, and the adhesive tape 1-3 thus provided are as shown in Fig. 4. Thus, the adhesive tape 1-3 and the release paper 1-2 are adhered by sticking between the nip rolls 100, so that deformation such as curl in the polarizer 1-1 can be prevented from occurring. Further, by reinforcing the adhesion between the adhesive tape 1-3 and the release paper 1-2, the release of the release paper 1-2 in which the adhesion of the adhesive tape 1-3 is induced can be more stably performed.
接下來，如第5圖所示，利用黏著帶1-3將離型紙1-2從偏光器1-1剝離。這樣剝離的離型紙1-2與黏著帶1-3藉由離型導引裝置60的引導被回收到上述第1回收輥12。藉由使離型導引裝置60與接合壓料輥200的間隔變窄，將偏光器1-1連續地固定，從而能夠防止捲曲的發生和搖晃引起的方向的偏離。Next, as shown in Fig. 5, the release paper 1-2 is peeled off from the polarizer 1-1 by the adhesive tape 1-3. The release paper 1-2 thus peeled off and the adhesive tape 1-3 are recovered to the first recovery roller 12 by the guiding of the release guide 60. By narrowing the interval between the release guide 60 and the joining nip roll 200, the polarizer 1-1 is continuously fixed, so that the occurrence of curl and the deviation of the direction due to the shaking can be prevented.
然後，如第6圖所示，將離型紙1-2和黏著帶1-3剝離的偏光器1-1藉由接合壓料輥200間。在此，偏光器1-1藉由接合壓料輥200間時，從光學膜卷取輥20供給的光學膜1-4從光學膜經由輥部26a、26b、26c、26d被搬運到接合壓料輥200，黏貼於偏光器1-1。光學膜經由輥部26a、26b、26c、26d也可以為1個或複數個，能夠多樣地設定其數目和位置。Then, as shown in Fig. 6, the polarizer 1-1 which peels off the release paper 1-2 and the adhesive tape 1-3 is joined between the nip rolls 200. Here, when the polarizer 1-1 is joined between the nip rolls 200, the optical film 1-4 supplied from the optical film take-up roll 20 is transported from the optical film to the joining pressure via the roll portions 26a, 26b, 26c, and 26d. The roll 200 is adhered to the polarizer 1-1. The optical film may be one or a plurality of the roller portions 26a, 26b, 26c, and 26d, and the number and position thereof can be variously set.
接下來，將光學膜1-4搬運到接合壓料輥200之前，為了防止光學膜1-4中的靜電的產生，藉由位於光學膜1-4的上側的抗靜電處理部30，能夠將抗靜電液塗佈於光學膜1-4。然後，為了使抗靜電液在光學膜1-4上全面地分佈，能夠設置刮擦部34。Next, before the optical film 1-4 is transferred to the bonding nip roll 200, in order to prevent generation of static electricity in the optical film 1-4, the antistatic processing unit 30 located on the upper side of the optical film 1-4 can The antistatic liquid is applied to the optical film 1-4. Then, in order to uniformly distribute the antistatic liquid on the optical film 1-4, the scratch portion 34 can be provided.
另一方面，能夠藉由角度形成輥300將從上述光學膜經由輥搬運的光學膜1-4在相對於重力方向的相反方向成0度或銳角的方向，供給到上述接合壓料輥200側。然後，第2回收輥22能夠將光學膜1-4和從該光學膜1-4剝離的光學膜離型紙回收。進而，本發明的實施方式涉及的偏光板的製造裝置1從偏光膜搬運部3至接合壓料輥200側，也可以沿水準方向供給偏光膜，也可以沿斜上方向供給上述偏光膜。On the other hand, the optical film 1-4 which is conveyed from the optical film via the roller by the angle forming roller 300 can be supplied to the joining nip roll 200 side at a direction of 0 degrees or an acute angle with respect to the direction opposite to the direction of gravity. . Then, the second recovery roller 22 can recover the optical film 1-4 and the optical film release paper peeled off from the optical film 1-4. Further, the apparatus 1 for manufacturing a polarizing plate according to the embodiment of the present invention may supply the polarizing film in the horizontal direction from the polarizing film conveying portion 3 to the side of the bonding nip roller 200, or may supply the polarizing film in the obliquely upward direction.
另外，第8圖為表示第1圖中所示的將離型紙黏貼於偏光膜的狀態的狀態圖。In addition, Fig. 8 is a view showing a state in which the release paper is adhered to the polarizing film shown in Fig. 1 .
如第8圖中所示，黏著帶1-3能夠黏貼於離型紙1-2的一部分（第8圖（c））或全部（第8圖（a）和（b））。在此，將黏著帶1-3黏貼於離型紙1-2的全部的情況下，能夠使黏著帶1-3與離型紙1-2相同大小（第8圖（a））或比其大（第8圖（b））。黏著帶1-3可以是具有比離型紙1-2窄的寬度的複數個帶，或者為具有與離型紙1-2相同或比其大的寬度的單數個帶。將黏著帶1-3藉由黏貼壓料輥100壓接黏貼於離型紙1-2後，在剝離時與離型紙1-2一起剝離。因此，黏著帶1-3能夠利用其黏接力設置以黏貼於離型紙1-2的一部分或全部。進而，將黏著帶1-3黏貼於離型紙1-2的全部的情況下，也可以以與離型紙1-2相同的大小黏貼於離型紙1-2（第8圖（a）），或者為了穩定的黏貼，也可以比離型紙1-2大地形成（第8圖（b））。As shown in Fig. 8, the adhesive tape 1-3 can be adhered to a part of the release paper 1-2 (Fig. 8(c)) or all (Fig. 8(a) and (b)). Here, when the adhesive tape 1-3 is adhered to all of the release paper 1-2, the adhesive tape 1-3 can be made the same size as the release paper 1-2 (Fig. 8(a)) or larger (Fig. 8(a)). Figure 8 (b)). The adhesive tape 1-3 may be a plurality of tapes having a width narrower than the release paper 1-2, or a single number of tapes having the same width as or larger than the release paper 1-2. The adhesive tape 1-3 is pressure-bonded to the release paper 1-2 by the adhesive nip roll 100, and is peeled off together with the release paper 1-2 at the time of peeling. Therefore, the adhesive tape 1-3 can be set by its adhesive force to be adhered to a part or all of the release paper 1-2. Further, when the adhesive tape 1-3 is adhered to all of the release paper 1-2, it may be adhered to the release paper 1-2 in the same size as the release paper 1-2 (Fig. 8(a)), or For stable adhesion, it can also be formed larger than the release paper 1-2 (Fig. 8(b)).
另一方面，本發明的實施方式涉及的偏光板的製造裝置1能夠位於腔室內。由腔室內的異物和離型紙的剝離等產生的灰塵等由於重力而向下方下落。為了防止這樣的下落異物附著於光學膜，在本發明的實施方式涉及的偏光板的製造裝置1中，藉由角度形成輥300，能夠將搬運到接合壓料輥200側的光學膜1-4的方向設定為相對於重力方向的相反方向傾斜+10度～-10度的方向。由此能夠防止向下方下落的異物附著於光學膜。進而，如上述那樣，藉由將該方向設定為相對於重力方向的相反方向傾斜+5度～-6度的方向（向前方的移動時5度以內、向後方的移動時6度以內），能夠更高效率地防止異物附著。在此，“+5度～-6度”意味著向前方（偏光膜1-1的供給方向的相反方向）的移動時的5度以內、向後方（偏光膜1-1的供給方向）的移動時的6度以內的範圍。應予說明，角度形成輥300的上述銳角移動可以是相同平面上的移動，也可以是在不同平面上的移動（例如圓狀或抛物線狀的移動）。On the other hand, the apparatus 1 for manufacturing a polarizing plate according to the embodiment of the present invention can be located in a chamber. Dust or the like generated by the foreign matter in the chamber and the peeling of the release paper or the like falls downward due to gravity. In the apparatus for manufacturing a polarizing plate according to the embodiment of the present invention, the optical film 1-4 that is transported to the side of the bonding nip roll 200 can be transported by the angle forming roller 300 in order to prevent such a foreign matter from adhering to the optical film. The direction is set to be inclined by +10 degrees to -10 degrees with respect to the opposite direction of the gravity direction. Thereby, it is possible to prevent foreign matter falling downward from adhering to the optical film. Further, as described above, the direction is set to be inclined by +5 degrees to -6 degrees with respect to the opposite direction of the gravity direction (within 5 degrees in the forward movement and 6 degrees in the backward movement). It is possible to prevent foreign matter from adhering more efficiently. Here, "+5 degrees to -6 degrees" means that the movement to the front (the supply direction of the polarizing film 1-1) is 5 degrees or less in the forward direction (the direction opposite to the supply direction of the polarizing film 1-1). The range within 6 degrees when moving. It should be noted that the above-described acute angular movement of the angle forming roller 300 may be a movement on the same plane, or may be a movement on a different plane (for example, a circular or parabolic movement).
接下來，參照第9圖，對本發明的另一實施方式涉及的偏光板的製造方法具體地進行說明。以下，在本領域技術人員由上述的本發明的實施方式涉及的偏光板的製造裝置的構成能夠實現本實施方式涉及的偏光板的製造方法的情況下，省略其具體的說明。Next, a method of manufacturing a polarizing plate according to another embodiment of the present invention will be specifically described with reference to FIG. In the following, in the case where the method of manufacturing the polarizing plate according to the embodiment of the present invention, the method of manufacturing the polarizing plate according to the embodiment of the present invention can be realized, and the detailed description thereof will be omitted.
本發明的另一實施方式涉及的偏光板的製造方法將在一側黏貼有離型紙1-2的偏光膜1-1、1-2搬運（S1）到黏貼壓料輥100側，將被供給到黏貼壓料輥100側的黏著帶1-3與被搬運到黏貼壓料輥100的偏光膜1-1和1-2壓接黏接（S2）。偏光膜1-1和1-2與黏著帶1-3的壓接黏接（S3）藉由黏貼壓料輥100進行。即，將偏光膜1-1和1-2與黏著帶1-3供給到黏貼壓料輥100中包含的輥之間，藉由輥的壓接能夠將偏光膜1-1和1-2與黏著帶1-3黏貼。由此，將黏著帶1-3黏接於偏光膜1-1、1-2的離型紙1-2。In the method for producing a polarizing plate according to another embodiment of the present invention, the polarizing films 1-1 and 1-2 to which the release paper 1-2 is adhered on one side are transported (S1) to the side of the adhesive nip roll 100, and are supplied. The adhesive tape 1-3 to the side of the adhesive nip roll 100 is pressure-bonded (S2) to the polarizing films 1-1 and 1-2 carried to the adhesive nip roll 100. The pressure bonding (S3) of the polarizing films 1-1 and 1-2 and the adhesive tape 1-3 is performed by adhering the nip roll 100. That is, the polarizing films 1-1 and 1-2 and the adhesive tape 1-3 are supplied between the rollers included in the adhesive nip roll 100, and the polarizing films 1-1 and 1-2 can be bonded by the pressure bonding of the rollers. Adhesive tape 1-3 pasted. Thereby, the adhesive tape 1-3 is adhered to the release paper 1-2 of the polarizing films 1-1 and 1-2.
接下來，將黏著帶1-3和壓接黏接於該黏著帶1-3的離型紙1-2從偏光器1-1剝離，一起回收（S3和S4）。由此，能夠防止將離型紙1-2從偏光器1-1部分地剝離或者在剝離過程中在偏光器1-1產生捲曲、變形。由於這些，能夠減小偏光板的不良率。Next, the release tape 1-3 and the release paper 1-2 which is pressure-bonded to the adhesive tape 1-3 are peeled off from the polarizer 1-1, and are recovered together (S3 and S4). Thereby, it is possible to prevent the release paper 1-2 from being partially peeled off from the polarizer 1-1 or curling and deforming in the polarizer 1-1 during the peeling process. Due to these, the defective rate of the polarizing plate can be reduced.
在此，黏著帶1-3和離型紙1-2的回收（S3、S4）藉由剝離將從偏光器1-1一起剝離的黏著帶1-3和離型紙1-2，藉由離型導引裝置60引導（S3）後，卷取到第1回收輥12而進行。Here, the recovery of the adhesive tape 1-3 and the release paper 1-2 (S3, S4) by peeling off the adhesive tape 1-3 and the release paper 1-2 which are peeled off together from the polarizer 1-1, by releasing After the guide device 60 guides (S3), it is taken up by the first recovery roller 12.
在此，能夠使黏著帶1-3與離型紙1-2相同大小或比其大，由此，能夠更有效且確實地進行黏著帶1-3和離型紙1-2的回收（S3、S4）。Here, the adhesive tape 1-3 can be made larger or larger than the release paper 1-2, whereby the adhesive tape 1-3 and the release paper 1-2 can be recovered more efficiently and reliably (S3, S4). ).
另一方面，能夠藉由接合壓料輥200將光學膜1-4接合（S5）於採用黏著帶1-3將離型紙1-2剝離的偏光膜。對於光學膜1-4，能夠相對於重力方向的相反方向成0度或銳角地供給到接合壓料輥200側。能夠相對於重力方向G的相反方向成規定的角度θ地供給到接合壓料輥200側。在此，規定的角度為0度（參照第7圖）或銳角（參照第8圖），銳角可以為±10度。由此，能夠將異物附著於光學膜1-4控制在最低限度。另外，為了同時實現防止異物附著的效果和裝置的有效的使用，如上述那樣，上述銳角可以為+5度～-6度。進而，本發明的實施方式涉及的偏光板的製造方法中，能夠不僅在水準方向而且也在斜上方向供給偏光膜。On the other hand, the optical film 1-4 can be joined (S5) by the bonding nip roll 200 to the polarizing film which peels the release paper 1-2 with the adhesive tape 1-3. The optical film 1-4 can be supplied to the joining nip roll 200 side at a degree of 0 or an acute angle with respect to the opposite direction of the gravity direction. It can be supplied to the joining nip roll 200 side at a predetermined angle θ with respect to the opposite direction of the gravity direction G. Here, the predetermined angle is 0 degree (refer to FIG. 7) or an acute angle (refer to FIG. 8), and the acute angle may be ±10 degrees. Thereby, it is possible to control the adhesion of the foreign matter to the optical film 1-4 to a minimum. Further, in order to simultaneously achieve the effect of preventing foreign matter from adhering and the effective use of the apparatus, as described above, the acute angle may be +5 to -6 degrees. Further, in the method of manufacturing a polarizing plate according to the embodiment of the present invention, the polarizing film can be supplied not only in the horizontal direction but also in the obliquely upward direction.
另一方面，將光學膜1-4搬運到接合壓料輥200側之前，為了防止光學膜1-4中的靜電的產生，能夠對光學膜1-4實施抗靜電處理。該抗靜電處理能夠藉由抗靜電處理部30進行，省略具體的說明。On the other hand, before the optical film 1-4 is conveyed to the side of the bonding nip roll 200, in order to prevent generation of static electricity in the optical film 1-4, the optical film 1-4 can be subjected to antistatic treatment. This antistatic treatment can be performed by the antistatic treatment unit 30, and a detailed description thereof will be omitted.
採用這樣的偏光板的製造方法設置的偏光板如第6圖的部分放大圖1D所示。本發明的實施方式涉及的偏光板具有將光學膜1-4接合於偏光器1-1的形態。由於使光學膜1-4與偏光器1-1的下側面接合，因此防止異物的附著，減小不良率。此時，能夠調節偏光器1-1的延伸軸方向，能夠調節與光學膜的延伸軸方向的接合角度。The polarizing plate provided by the manufacturing method of such a polarizing plate is as shown in a partially enlarged view 1D of Fig. 6. The polarizing plate according to the embodiment of the present invention has a form in which the optical film 1-4 is bonded to the polarizer 1-1. Since the optical film 1-4 is joined to the lower side surface of the polarizer 1-1, adhesion of foreign matter is prevented, and the defect rate is reduced. At this time, the direction of the extension axis of the polarizer 1-1 can be adjusted, and the angle of engagement with the direction of the extension axis of the optical film can be adjusted.
進而，由於能夠對光學膜1-4實施抗靜電處理，因此即使在層疊狀態下供給、使用偏光板，靜電的產生也減少，用於使用的偏光板的分離變得容易。具體地，如第6圖的1D所示，偏光器1-1能夠包含偏光器和在該偏光器的一側（第6圖的1D的上側）黏接的第1保護層（未圖示），能夠使光學膜1-4位於或黏接於偏光器1-1的另一側（第6圖的1D的下側）。此時，偏光器可以為PVA（PolyVinyl Alcohol，聚乙烯醇）拉伸偏光器，可意味著將偏光器保護膜接合的狀態。在此，光學膜1-4能夠起到保護偏光器1-1的另一側的作用和作為相位差膜的作用。在該意義上，光學膜1-4也稱為第2保護層1-4。光學膜1-4（或第2保護層）能夠進行抗靜電處理而與偏光器1-1接合。因此，根據本發明的實施方式的偏光板從層疊的狀態為了使用而分離為各個偏光板時，能夠減少或防止與鄰接地層疊的其他偏光板的靜電的產生。Further, since the anti-static treatment can be applied to the optical film 1-4, even if the polarizing plate is supplied and used in the laminated state, the generation of static electricity is reduced, and the separation of the polarizing plate for use is facilitated. Specifically, as shown in 1D of FIG. 6, the polarizer 1-1 can include a polarizer and a first protective layer (not shown) that is bonded to one side of the polarizer (the upper side of 1D of FIG. 6). The optical film 1-4 can be placed or bonded to the other side of the polarizer 1-1 (the lower side of 1D of FIG. 6). In this case, the polarizer may be a PVA (PolyVinyl Alcohol) stretch polarizer, which may mean a state in which the polarizer protective film is joined. Here, the optical film 1-4 can function to protect the other side of the polarizer 1-1 and function as a retardation film. In this sense, the optical film 1-4 is also referred to as a second protective layer 1-4. The optical film 1-4 (or the second protective layer) can be subjected to antistatic treatment to be bonded to the polarizer 1-1. Therefore, when the polarizing plate according to the embodiment of the present invention is separated into individual polarizing plates from the stacked state for use, it is possible to reduce or prevent generation of static electricity from other polarizing plates that are adjacently stacked.
由此，本發明的實施方式涉及的偏光板依次包含偏光器、第1保護層和第2保護層1-4。即，偏光器1-1以保護層分別位於（黏接於）偏光器的兩側的形態設置，能夠將第2保護層1-4與偏光器1-1的另一側接合。在此，可對第2保護層1-4賦予相位差，賦予了相位差的第2保護層1-4能夠作為具有光學性質的膜發揮功能。Thus, the polarizing plate according to the embodiment of the present invention includes the polarizer, the first protective layer, and the second protective layer 1-4 in this order. That is, the polarizer 1-1 is provided in such a manner that the protective layers are respectively positioned (adhered) to both sides of the polarizer, and the second protective layer 1-4 can be joined to the other side of the polarizer 1-1. Here, the phase difference can be imparted to the second protective layer 1-4, and the second protective layer 1-4 to which the phase difference is applied can function as a film having optical properties.
另外，藉由進行了抗靜電處理的保護膜（未圖示）位於第2保護層1-4（也稱為光學膜）的另一側、即與偏光器黏接的第2保護層1-4的接合面的相反側，為了使用而從偏光板的層疊體將各個偏光板分離時的靜電的產生減小。在此，抗靜電處理可以是抗靜電塗層處理。進而，進行了抗靜電處理的保護膜可包含抗靜電劑。Further, a protective film (not shown) subjected to an antistatic treatment is located on the other side of the second protective layer 1-4 (also referred to as an optical film), that is, the second protective layer 1 to which the polarizer is bonded. On the opposite side of the joint surface of 4, the generation of static electricity when separating the respective polarizing plates from the laminated body of the polarizing plate is reduced for use. Here, the antistatic treatment may be an antistatic coating treatment. Further, the protective film subjected to the antistatic treatment may contain an antistatic agent.
以上藉由代表性的實施方式對本發明詳細地進行了說明，但對於本領域技術人員而言，應理解在不脫離本發明的範疇的範圍內可以對上述的實施方式進行各種的變形。因此，本發明的權利範圍不應限定於說明的實施方式，應該不僅由後述的申請專利範圍而且由與該申請專利範圍等同的方案確定。The present invention has been described in detail with reference to the preferred embodiments thereof, and it is understood by those skilled in the art that various modifications may be made in the above-described embodiments without departing from the scope of the invention. Therefore, the scope of the invention should not be limited by the description of the invention, and should be determined not only by the scope of the patents described below but also by the equivalent of the scope of the patent application.
1-1‧‧‧偏光膜、偏光器
1-2‧‧‧偏光膜、離型紙
1-3‧‧‧黏著帶
10‧‧‧黏著帶卷取輥
12‧‧‧第1回收輥
14‧‧‧黏著帶經由輥部
14a‧‧‧黏著帶供給部
20‧‧‧光學膜卷取輥
22‧‧‧第2回收輥
26a、26b、26c、26d‧‧‧輥部
30‧‧‧抗靜電處理部
32‧‧‧抗靜電液滴排出部
34‧‧‧刮擦部
36‧‧‧刷部
40‧‧‧吸引部
60‧‧‧離型導引裝置
100‧‧‧黏貼壓料輥
200‧‧‧接合壓料輥
300‧‧‧角度形成輥
1-1‧‧‧ polarizing film, polarizer
1-2‧‧‧ polarizing film, release paper
1-3‧‧‧Adhesive tape
10‧‧‧Adhesive tape take-up rolls
12‧‧‧1st recycling roller
14‧‧‧Adhesive tape through the roller
14a‧‧‧Adhesive tape supply department
20‧‧‧Optical film take-up rolls
22‧‧‧2nd recycling roller
26a, 26b, 26c, 26d‧‧‧ Rolls
30‧‧‧Antistatic treatment department
32‧‧‧Antistatic droplet discharge
34‧‧‧Scratch
36‧‧‧ Brush
40‧‧‧Attraction
60‧‧‧ release guide
100‧‧‧Adhesive nip rolls
200‧‧‧Joint nip rolls
300‧‧‧ Angle forming roller
第1圖為表示本發明的實施方式涉及的偏光板的製造裝置的圖。 第2圖為表示第1圖的偏光板的製造裝置中的接合壓料輥與角度形成輥的位置關係的圖。 第3圖為第1圖的偏光板的製造裝置中表示將偏光膜與離型紙黏接的狀態的狀態圖。 第4圖為表示第1圖中所示的離型紙與黏著帶黏貼的狀態的狀態圖。 第5圖為表示從第1圖中所示的離型紙與黏著帶黏貼的狀態分離的樣子的狀態圖。 第6圖為表示將偏光膜和光學膜接合的狀態的狀態圖。 第7圖為表示第1圖中所示的藉由黏貼壓料輥將黏著帶黏貼於離型紙的狀態的狀態圖。 第8圖為表示第1圖中所示的將離型紙黏貼於偏光膜的狀態的狀態圖。 第9圖為表示本發明的實施方式涉及的偏光板的製造方法的圖。Fig. 1 is a view showing a manufacturing apparatus of a polarizing plate according to an embodiment of the present invention. Fig. 2 is a view showing a positional relationship between a joining nip roll and an angle forming roll in the apparatus for manufacturing a polarizing plate of Fig. 1. Fig. 3 is a view showing a state in which the polarizing film is bonded to the release paper in the apparatus for manufacturing a polarizing plate of Fig. 1. Fig. 4 is a view showing a state in which the release paper shown in Fig. 1 is adhered to the adhesive tape. Fig. 5 is a view showing a state in which the release paper shown in Fig. 1 is separated from the state in which the adhesive tape is adhered. Fig. 6 is a view showing a state in which a polarizing film and an optical film are joined. Fig. 7 is a view showing a state in which the adhesive tape is adhered to the release paper by the adhesive nip roll shown in Fig. 1. Fig. 8 is a view showing a state in which the release paper is adhered to the polarizing film shown in Fig. 1. Fig. 9 is a view showing a method of manufacturing a polarizing plate according to an embodiment of the present invention.
1-3‧‧‧黏著帶 1-3‧‧‧Adhesive tape
10‧‧‧黏著帶卷取輥 10‧‧‧Adhesive tape take-up rolls
12‧‧‧第1回收輥 12‧‧‧1st recycling roller
14‧‧‧黏著帶經由輥部 14‧‧‧Adhesive tape through the roller
14a‧‧‧黏著帶供給部 14a‧‧‧Adhesive tape supply department
20‧‧‧光學膜卷取輥 20‧‧‧Optical film take-up rolls
26a、26b、26c、26d‧‧‧輥部 26a, 26b, 26c, 26d‧‧‧ Rolls
30‧‧‧抗靜電處理部 30‧‧‧Antistatic treatment department
32‧‧‧抗靜電液滴排出部 32‧‧‧Antistatic droplet discharge
34‧‧‧刮擦部 34‧‧‧Scratch
36‧‧‧刷部 36‧‧‧ Brush
40‧‧‧吸引部 40‧‧‧Attraction
60‧‧‧離型導引裝置 60‧‧‧ release guide
100‧‧‧黏貼壓料輥 100‧‧‧Adhesive nip rolls
200‧‧‧接合壓料輥 200‧‧‧Joint nip rolls
300‧‧‧角度形成輥 300‧‧‧ Angle forming roller
Claims (28)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150100368A KR20170010153A (en) | 2015-07-15 | 2015-07-15 | Polarizing film manufacturing apparatus, polarizing film manufacturing method, and polarizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201702656A true TW201702656A (en) | 2017-01-16 |
Family
ID=57843165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW105120184A TW201702656A (en) | 2015-07-15 | 2016-06-27 | Polarizing film manufacturing apparatus, polarizing film manufacturing method, and polarizer reduces the defect rate of polarizing plate and increases production efficiency |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2017027036A (en) |
| KR (1) | KR20170010153A (en) |
| CN (1) | CN106346935A (en) |
| TW (1) | TW201702656A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488514A (en) * | 2019-07-29 | 2019-11-22 | 武汉华星光电技术有限公司 | A kind of polarized light sheet pasting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040053773A (en) | 2003-11-12 | 2004-06-24 | 이스타랩(주) | apparatus and method for reproducting and recording reserved radio broadcasting signal in MP3 player |
-
2015
- 2015-07-15 KR KR1020150100368A patent/KR20170010153A/en not_active Application Discontinuation
-
2016
- 2016-06-27 TW TW105120184A patent/TW201702656A/en unknown
- 2016-06-29 JP JP2016128850A patent/JP2017027036A/en active Pending
- 2016-07-12 CN CN201610547575.4A patent/CN106346935A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR20170010153A (en) | 2017-01-26 |
| JP2017027036A (en) | 2017-02-02 |
| CN106346935A (en) | 2017-01-25 |
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