TWI708675B - Manufacturing method of optical film - Google Patents
Manufacturing method of optical film Download PDFInfo
- Publication number
- TWI708675B TWI708675B TW106127849A TW106127849A TWI708675B TW I708675 B TWI708675 B TW I708675B TW 106127849 A TW106127849 A TW 106127849A TW 106127849 A TW106127849 A TW 106127849A TW I708675 B TWI708675 B TW I708675B
- Authority
- TW
- Taiwan
- Prior art keywords
- optical film
- ultraviolet light
- roller
- laminating
- film
- Prior art date
Links
Images
Classifications
-
- 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
-
- 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
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
Description
本揭露是有關於一種貼合系統及應用其之光學膜的製造方法。 This disclosure relates to a lamination system and a manufacturing method of an optical film using it.
偏光板經常被用作構成液晶顯示裝置的光學元件。偏光板為具有多層結構的光學薄膜,在進行多層結構之製造貼合過程時,有可能因為光學薄膜的輸送過程,以及張力拉伸等因素而於光學薄膜的表面形成紋路,進而造成偏光板缺陷。 Polarizing plates are often used as optical elements constituting liquid crystal display devices. The polarizing plate is an optical film with a multilayer structure. During the manufacturing and bonding process of the multilayer structure, it is possible that the surface of the optical film may form lines on the surface of the optical film due to the transportation process of the optical film, tension and stretching, which may cause defects in the polarizer. .
本揭露係有關於一種貼合系統及應用其之光學膜的製造方法。實施例中,貼合輥輪包括一第一紫外光照射裝置,因此進行光學膜貼合時,可以同時以第一紫外光照射裝置對光學膜之間的紫外光固化型接著劑進行紫外光照射,如此一來,貼合之後形成的平坦表面可以經由部分固化的紫外光固化型接著劑而固定,因此可以防止因為貼合後往後輸送的過程中的拉扯或張力拉伸而形成紋路,進而避免貼合而成的積層膜產生缺陷。 This disclosure relates to a bonding system and a manufacturing method of an optical film using the bonding system. In the embodiment, the bonding roller includes a first ultraviolet light irradiation device, so when the optical film is bonded, the first ultraviolet light irradiation device can be used to simultaneously irradiate the ultraviolet light curing adhesive between the optical films with ultraviolet light In this way, the flat surface formed after the lamination can be fixed by a partially cured UV-curable adhesive, so it can prevent the formation of lines due to the pulling or tension stretching during the conveying process after lamination. Avoid defects in the laminated film formed by bonding.
根據本揭露之一實施例,提出一種貼合系統。貼合系統包括一貼合裝置。貼合裝置包括一第一貼合輥輪和一第二貼合輥輪,第一貼合輥輪和第二貼合輥輪彼此相對配置,用以貼合一第一光學膜和一第二光學膜以形成一積層膜。第一貼合輥輪包括一第一紫外光照射裝置,第一紫外光照射裝置用以提供一第一紫外光。 According to an embodiment of the disclosure, a bonding system is provided. The bonding system includes a bonding device. The laminating device includes a first laminating roller and a second laminating roller. The first laminating roller and the second laminating roller are arranged opposite to each other for laminating a first optical film and a second Optical film to form a laminated film. The first bonding roller includes a first ultraviolet light irradiation device, and the first ultraviolet light irradiation device is used for providing a first ultraviolet light.
根據本揭露之另一實施例,提出一種光學膜的製造方法。光學膜的製造方法包括以下步驟:提供一第一光學膜和一第二光學膜;塗佈一紫外光固化型接著劑於該第一光學膜上或該第二光學膜上;以及同時貼合及提供一第一紫外光於該第一光學膜和一第二光學膜以形成一積層膜。 According to another embodiment of the present disclosure, a manufacturing method of an optical film is provided. The manufacturing method of the optical film includes the following steps: providing a first optical film and a second optical film; coating an ultraviolet curable adhesive on the first optical film or the second optical film; and laminating simultaneously And providing a first ultraviolet light to the first optical film and a second optical film to form a laminated film.
為了對本發明之上述及其他方面有更佳的瞭解,下文特舉實施例,並配合所附圖式詳細說明如下: In order to have a better understanding of the above and other aspects of the present invention, the following specific examples are given in conjunction with the accompanying drawings to describe in detail as follows:
1、1A、1B:貼合系統 1. 1A, 1B: Laminating system
10:貼合裝置 10: Fitting device
100、100A:第一貼合輥輪 100, 100A: the first bonding roller
110:外層中空輥輪 110: Outer hollow roller
120:第一紫外光照射裝置 120: The first ultraviolet light irradiation device
130:內層固定輥輪 130: inner fixed roller
130r:凹槽 130r: groove
130s:開口 130s: opening
131:端部 131: End
132:主體部 132: main body
140:固定軸 140: fixed shaft
150:軸承 150: bearing
160:濾光片 160: filter
160A、160B、160C:區域 160A, 160B, 160C: area
170:固定架 170: fixed frame
200:第二貼合輥輪 200: The second bonding roller
300、310:塗佈裝置 300, 310: Coating device
400、410:紫外光固化型接著劑 400, 410: UV curing adhesive
500:積層膜 500: laminated film
510:第一光學膜 510: The first optical film
520:第二光學膜 520: second optical film
530:第三光學膜 530: The third optical film
600:冷卻輥輪 600: cooling roller
700:第二紫外光照射裝置 700: The second ultraviolet light irradiation device
800、810:按壓輥輪 800, 810: pressing roller
D1:輸送方向 D1: Conveying direction
d1、d2:外周直徑 d1, d2: outer diameter
L1:長度 L1: length
W1:寬度 W1: width
第1圖繪示根據本揭露之一實施例之貼合系統之示意圖。 FIG. 1 is a schematic diagram of a bonding system according to an embodiment of the disclosure.
第1A圖繪示根據本揭露之另一實施例之貼合系統之示意圖。 FIG. 1A is a schematic diagram of a bonding system according to another embodiment of the disclosure.
第1B圖繪示根據本揭露之更一實施例之貼合系統之示意圖。 FIG. 1B is a schematic diagram of a bonding system according to a further embodiment of the disclosure.
第2A圖繪示根據本揭露之一實施例之第一貼合輥輪沿X-Z平面之剖面示意圖。 FIG. 2A is a schematic cross-sectional view of the first laminating roller along the X-Z plane according to an embodiment of the disclosure.
第2B圖繪示根據本揭露之一實施例之第一貼合輥輪沿Y-Z平面之剖面示意圖。 Figure 2B is a schematic cross-sectional view of the first laminating roller along the Y-Z plane according to an embodiment of the disclosure.
第3A圖繪示根據本揭露之一實施例之內層固定輥輪沿Y-Z平面之側視圖。 FIG. 3A shows a side view of the inner fixed roller along the Y-Z plane according to an embodiment of the disclosure.
第3B圖繪示根據本揭露之一實施例之外層中空輥輪沿Y-Z平面之側視圖。 Figure 3B shows a side view of the outer hollow roller along the Y-Z plane according to an embodiment of the present disclosure.
本揭露內容之實施例中,貼合輥輪包括一第一紫外光照射裝置,進行光學膜貼合時,可以同時以第一紫外光照射裝置對光學膜之間的紫外光固化型接著劑進行紫外光照射,如此一來,貼合之後形成的平坦表面可以經由部分固化的紫外光固化型接著劑而固定,因此可以防止因為貼合後往後輸送的過程中的拉扯或張力拉伸而形成紋路,進而避免貼合而成的積層膜產生缺陷。 In the embodiment of the present disclosure, the bonding roller includes a first ultraviolet light irradiation device. When the optical film is bonded, the first ultraviolet light irradiation device can be used to simultaneously perform the ultraviolet curing adhesive between the optical films. UV light irradiation, in this way, the flat surface formed after bonding can be fixed by a partially cured UV-curable adhesive, so it can be prevented from being formed by pulling or tension stretching during the conveying process after bonding. Textures, and avoid defects in the laminated film formed by bonding.
以下係提出各種實施例進行詳細說明,實施例僅用以作為範例說明,並不會限縮本發明欲保護之範圍。在不同實施例與圖式之中,相同的元件,將以相同的元件符號加以表示。值得注意的是,這些特定的實施例,並非用以限定本發明。本發明仍可採用其他特徵、元件、方法及參數來加以實施。實施例的提出,僅係用以例示本發明的技術特徵,並非用以限定本發明的申請專利範圍。該技術領域中具有通常知識者,將可根據以下說明書的描述,在不脫離本發明的精神範圍內,作均等的修飾與變化。此外,實施例中之圖式係省略部份元件,以清楚顯示本發明之技術特點。 Various embodiments are provided below for detailed description. The embodiments are only used as examples for description, and do not limit the scope of the present invention. In the different embodiments and drawings, the same elements will be represented by the same element symbols. It should be noted that these specific embodiments are not intended to limit the present invention. The present invention can still be implemented using other features, elements, methods and parameters. The embodiments are only used to illustrate the technical features of the present invention, and not to limit the scope of patent application of the present invention. Those with ordinary knowledge in this technical field will be able to make equivalent modifications and changes based on the description in the following specification without departing from the spirit of the present invention. In addition, some elements are omitted from the drawings in the embodiments to clearly show the technical features of the present invention.
第1圖繪示根據本揭露之一實施例之貼合系統1之示意圖。如第1圖所示,貼合系統1可包括貼合裝置10、塗佈裝置300和310、冷卻輥輪600以及第二紫外光照射裝置700。貼合裝置10包括一第一貼合輥輪100和一第二貼合輥輪200,第一貼合輥輪100和第二貼合輥輪200彼此相對配置,用以貼合一第一光學膜510、及一第三光學膜530和一第二光學膜520以形成一積層膜500。
FIG. 1 is a schematic diagram of a
第一貼合輥輪100包括一第一紫外光照射裝置120,用以提供一第一紫外光。詳細而言,如第1圖所示,實施例中,第一光學膜510、第三光學膜530和第二光學膜520通過第一貼合輥輪100和第二貼合輥輪200之間,藉由第一貼合輥輪100和第二貼合輥輪200之擠壓而彼此貼合,第一紫外光照射裝置120於貼合第一光學膜510、第三光學膜530和第二光學膜520時同時提供一第一紫外光,對第一光學膜510、第三光學膜530和第二光學膜520之間的紫外光固化型接著劑進行紫外光照射,而可以固化部分的紫外光固化型接著劑。如此一來,第一光學膜510、第三光學膜530和第二光學膜520在貼合之時形成的平坦表面,可以經由該些部分固化的紫外光固化型接著劑而固定,因此可以防止因為貼合後往後輸送的過程中的拉扯或張力拉伸而形成紋路,進而避免積層膜500產生缺陷。
The
一些實施例中,第一貼合輥輪100可包括一外層中空輥輪110,第一紫外光照射裝置120設置於外層中空輥輪110中。
In some embodiments, the
一些實施例中,如第1圖所示,貼合系統1可包括一第二紫外光照射裝置700,第二紫外光照射裝置700用以提供一第二紫外
光。如第1圖所示,第二紫外光照射裝置700位於貼合裝置10之下游;也就是說,沿著輸送方向D1,第二紫外光照射裝置700設置於第一紫外光照射裝置120之後。具體而言,當光學膜經過第一貼合輥輪100和第二貼合輥輪200後,此時的積層膜500中具有部分固化的紫外光固化型接著劑,接著輸送至第二紫外光照射裝置700,以第二紫外光進行進一步的紫外光照射,將紫外光固化型接著劑完全固化,而製作成完全定型而具有平坦表面的積層膜500。
In some embodiments, as shown in Figure 1, the
一些實施例中,第一光學膜510和第三光學膜530例如是保護膜,保護膜可為單層或多層之結構。保護膜之材料可例如是透明性、機械強度、熱穩定性、水分阻隔性等優良之熱可塑性樹脂。熱可塑性樹脂可包括纖維素樹脂(例如:三醋酸纖維素(Triacetate Cellulose,TAC)、二醋酸纖維素(Diacetate Cellulose,DAC))、丙烯酸樹脂(例如:聚甲基丙烯酸甲酯(Poly(methyl methacrylate),PMMA)、聚酯樹脂(例如,聚對苯二甲酸乙二酯(Polyethylene Terephthalate,PET)、聚萘二甲酸乙二酯)、烯烴樹脂、聚碳酸酯樹脂、環烯烴樹脂、定向拉伸性聚丙烯(Oriented-Polypropylene,OPP)、聚乙烯(Polyethylene,PE)、聚丙烯(Polypropylene,PP)、環烯烴聚合物(Cyclic Olefin Polymer,COP)、環烯烴共聚合物(Cyclic Olefin Copolymer,COC)、或上述之任意組合。此外,亦可進一步對上述保護膜實行表面處理,例如,抗眩光處理、抗反射處理、硬塗處理、帶電防止處理或抗污處理等。在一實施例中,第一光學膜510和第三光
學膜530可為對光學之增益、配向、補償、轉向、直交、擴散、防黏、耐刮、抗眩、反射抑制、高折射率等有所助益的膜層,例如相位差膜。
In some embodiments, the first
第二光學膜520例如是偏光膜,偏光膜的材料可為聚乙烯醇(PVA)樹脂膜,其可藉由皂化聚醋酸乙烯樹脂製得。聚醋酸乙烯樹脂的例子包括醋酸乙烯之單聚合物,即聚醋酸乙烯,以及醋酸乙烯之共聚合物和其他能與醋酸乙烯進行共聚合之單體。
The second
詳細而言,在第一光學膜510及第三光學膜530是透過紫外光固化型接著劑貼合第二光學膜520的情況下,在經過貼合輥輪時,若是沒有經過紫外光固化型接著劑之部分固化的程序,例如:照射紫外光,便將三乙醯纖維素透明薄膜和聚乙烯醇系偏光薄膜貼合而往後端輸送,由於此時紫外光固化型接著劑尚未固化不具有任何黏性,導致聚乙烯醇系偏光薄膜在輸送過程中,例如:在輸送至紫外光照射裝置前,受到張力拉伸等因素而造成原本貼合後之膜材的平坦表面再度形成紋路,進而造成偏光板缺陷。相對而言,根據本揭露內容之實施例,在貼合三乙醯纖維素透明薄膜和聚乙烯醇系偏光薄膜時同時提供第一紫外光,使部分之紫外光固化型接著劑固化,部分固化的紫外光固化型接著劑具有較高的黏度,此特性可以定型住三乙醯纖維素透明薄膜和聚乙烯醇系偏光薄膜在貼合之後形成的平坦表面,因此可以防止因為貼合後往後輸送的過程中的拉扯或張力拉伸而形成紋路,進而避免偏光板缺陷的產生。
In detail, in the case where the first
如第1圖所示,實施例中,第一貼合輥輪100更可包括一內層固定輥輪130,內層固定輥輪130設置於外層中空輥輪110之中,
內層固定輥輪130具有一凹槽130r,且凹槽130r的一開口130s朝向積層膜500,第一紫外光照射裝置120設置於凹槽130r中。也就是說,凹槽130r的開口130s朝向第一貼合輥輪100和第二貼合輥輪200之間進行光學膜貼合的位置。在一些實施例中,凹槽130r具有兩個側表面,第一紫外光照射裝置120夾設於凹槽130r的兩個側表面之間,兩個側表面之夾角可介於30~45度。
As shown in Figure 1, in the embodiment, the
在一些實施例中,第一紫外光照射裝置120和第二紫外光照射裝置700為可發射波長介於200奈米(nm)~380奈米的裝置,例如低壓水銀燈、中壓水銀燈、高壓水銀燈、超高壓水銀燈、化學燈、黑光燈、微波激發水銀燈或金屬鹵素燈等。
In some embodiments, the first ultraviolet
實施例中,如第1圖所示,外層中空輥輪110係透明,而內層固定輥輪130的材質係非透光,第一紫外光照射裝置120發出的第一紫外光從開口130s射出並通過外層中空輥輪110而照射至積層膜500上。也就是說,內層固定輥輪130的非透光性質及凹槽結構將第一紫外光的照射範圍限制在僅從開口130s射出,因此第一紫外光僅照射需要部分固化的光學膜,不會從其他方向射出第一貼合輥輪100,也可以避免操作人員被第一紫外光照射到的問題。
In the embodiment, as shown in Figure 1, the outer
一些實施例中,外層中空輥輪110例如是透明玻璃中空輥輪,內層固定輥輪130的材質例如是不銹鋼、塑鋼、或鈦合金。第二貼合輥輪200的材質例如是不銹鋼、塑鋼、或鈦合金。一些實施例中,第二貼合輥輪200外層可包覆一層抗紫外光之緩衝材料,例如是橡膠、泡棉、或塑膠,用以在與第一貼合輥輪100壓合第一光學膜510、
第二光學膜520和第三光學膜530時提供緩衝之效果,避免產生缺陷,但本揭露內容不以此為限。一些實施例中,第二貼合輥輪200亦可包括另一紫外光照射裝置(圖未示),且與第一紫外光照射裝置120同時提供紫外光,此時,第二貼合輥輪200之設計可與第一貼合輥輪100相同,在此不再贅述。
In some embodiments, the outer
如第1圖所示,第一貼合輥輪100更可包括一固定軸140,固定軸140連接內層固定輥輪130,內層固定輥輪130係固定於固定軸140,且外層中空輥輪110可繞固定軸140轉動。
As shown in Figure 1, the
實施例中,如第1圖所示,第一貼合輥輪100更可包括一軸承150,軸承150連接內層固定輥輪130和外層中空輥輪110,軸承150用以帶動外層中空輥輪110繞固定軸140轉動。舉例而言,軸承150例如是滾珠軸承。
In an embodiment, as shown in Figure 1, the
實施例中,如第1圖所示,貼合系統1可包括塗佈裝置300,塗佈裝置300用以將一紫外光固化型接著劑400塗佈於第一光學膜510上。實施例中,塗佈裝置300位於貼合裝置10之上游;也就是說,沿著一輸送方向D1,塗佈裝置300設置於第一紫外光照射裝置120之前。
In an embodiment, as shown in FIG. 1, the
一些實施例中,如第1圖所示,貼合系統1可更包括第二個塗佈裝置310,塗佈裝置310可用以將一紫外光固化型接著劑410塗佈於一第三光學膜530上。
In some embodiments, as shown in Figure 1, the
第1A圖繪示根據本揭露之另一實施例之貼合系統之示意圖,第1B圖繪示根據本揭露之更一實施例之貼合系統之示意圖。本 實施例中與前述實施例相同或相似之元件係沿用同樣或相似的元件標號,且相同或相似元件之相關說明請參考前述,在此不再贅述。 FIG. 1A is a schematic diagram of a bonding system according to another embodiment of the disclosure, and FIG. 1B is a schematic diagram of a bonding system according to a further embodiment of the disclosure. this In the embodiment, the same or similar component numbers are used for the same or similar component numbers as in the previous embodiment, and the related description of the same or similar components please refer to the foregoing, and will not be repeated here.
一些實施例中,如第1A圖所示,貼合系統1A中,塗佈裝置300位於貼合裝置10之上游,且塗佈裝置300可用以將紫外光固化型接著劑400塗佈於第二光學膜520上。
In some embodiments, as shown in FIG. 1A, in the
在另外一些實施例中,如第1B圖所示,貼合系統1B中,塗佈裝置300和310可分別設置於第二光學膜520的相對之兩表面上,用以將紫外光固化型接著劑塗佈於第二光學膜520上。實施例中,第一光學膜510、第二光學膜520和第三光學膜530可一起通過第一貼合輥輪100和第二貼合輥輪200之間,而貼合以形成具有三層結構的積層膜500,進行貼合第一光學膜510、第二光學膜520和第三光學膜530時,可以同時以第一紫外光照射裝置120提供一第一紫外光,對第一光學膜510和第二光學膜520之間的紫外光固化型接著劑400以及第二光學膜520和第三光學膜530之間的紫外光固化型接著劑410進行紫外光照射,而可以部分固化紫外光固化型接著劑400和410。如前所述,因此可以達到貼合之後形成的平坦表面可以經由部分固化的紫外光固化型接著劑400和410而固定的效果,可以防止因為貼合後往後輸送的過程中的拉扯或張力拉伸而形成紋路,進而避免積層膜500缺陷的產生。
In other embodiments, as shown in FIG. 1B, in the
一些實施例中,貼合裝置10可更包括至少一按壓輥輪,按壓輥輪接觸並提供一壓力至第一貼合輥輪100和第二貼合輥輪200之至少其中之一。如第1圖所示,實施例中,貼合裝置10可包括兩個
按壓輥輪800、810,按壓輥輪800和按壓輥輪810分別接觸第一貼合輥輪100和第二貼合輥輪200,且按壓輥輪800和810的其中之一可提供壓力至對應接觸的貼合輥輪,以達到加壓貼合而提高積層膜500表面平坦性的效果。一些實施例中,按壓輥輪800及/或第二貼合輥輪200亦可以是冷卻輥輪,舉例而言,其結構可以是具有中空結構的輥輪,而經由通入冷卻氣體或冷卻液體至中空結構內部的空腔中而達到冷卻第一光學膜510、及/或第二光學膜520、及/或第三光學膜530的效果。
In some embodiments, the
一些實施例中,如第1圖所示,貼合系統1可包括冷卻輥輪600,第二紫外光照射裝置700對應於冷卻輥輪600的外周面設置。如第1圖所示,冷卻輥輪600位於貼合裝置10之下游;也就是說,沿著輸送方向D1,冷卻輥輪600設置於第一紫外光照射裝置120之後。冷卻輥輪600用以協助冷卻積層膜500,而避免積層膜500受到太大能量之紫外光產生之高溫的損傷。
In some embodiments, as shown in FIG. 1, the
第2A圖繪示根據本揭露之一實施例之第一貼合輥輪沿X-Z平面之剖面示意圖,第2B圖繪示根據本揭露之一實施例之第一貼合輥輪沿Y-Z平面之剖面示意圖,第3A圖繪示根據本揭露之一實施例之內層固定輥輪沿Y-Z平面之側視圖,第3B圖繪示根據本揭露之一實施例之外層中空輥輪沿Y-Z平面之側視圖。本實施例中與前述實施例相同或相似之元件係沿用同樣或相似的元件標號,且相同或相似元件之相關說明請參考前述,在此不再贅述。需注意的是,第3A圖~第3B圖中,僅部分結構特徵以透視方式呈現並以虛線表示。 Figure 2A is a schematic cross-sectional view of the first laminating roller along the XZ plane according to an embodiment of the present disclosure, and Figure 2B is a cross-sectional view of the first laminating roller along the YZ plane according to an embodiment of the present disclosure Schematic diagram, Figure 3A shows a side view of the inner fixed roller along the YZ plane according to an embodiment of the present disclosure, and Figure 3B shows a side view of the outer hollow roller along the YZ plane according to an embodiment of the present disclosure . In this embodiment, the same or similar component numbers are used for the same or similar component numbers as in the previous embodiments, and the related description of the same or similar components please refer to the foregoing, and will not be repeated here. It should be noted that, in Figures 3A to 3B, only part of the structural features are presented in perspective and indicated by dashed lines.
如第2A圖所示,本實施例中,第一貼合輥輪100A中,凹槽130r例如具有內凹的弧形表面,第一紫外光照射裝置120可透過固定件(圖未繪示)固定於凹槽130r的表面上。並且,凹槽130r的開口130s小於凹槽130r的內徑,開口130s的尺寸限定第一紫外光射出的方向與範圍。
As shown in Figure 2A, in this embodiment, in the
如第2A圖~第2B圖所示,開口130s沿第一貼合輥輪100A的軸向具有一長度L1,長度L1係為1500~2500毫米(mm),開口130s沿垂直於第一貼合輥輪100A的軸向具有一寬度W1,寬度W1係為10~20毫米。
As shown in Figures 2A to 2B, the
並且,一些實施例中,開口130s的長度L1例如是大於或等於積層膜500的寬度,而能夠對較大面積的積層膜500提供紫外光照射而達到較完整區域的部分固化效果。
Moreover, in some embodiments, the length L1 of the
如第2B圖所示,內層固定輥輪130具有至少一端部131和一主體部132,端部131連接於主體部132,且端部131之外周直徑d1小於主體部132的外周直徑d2。實施例中,軸承150可設置於內層固定輥輪130的端部131上,而外層中空輥輪110連接於軸承150和內層固定輥輪130的主體部132。藉此,外層中空輥輪110可透過軸承150之帶動繞固定軸140專動,而內層固定輥輪130則可固定於固定軸140上。如此一來,外層中空輥輪110可持續轉動以帶動光學膜(如第1圖之第一光學膜510)前進,且內層固定輥輪130之凹槽130r和第一紫外光照射裝置120仍可維持在相同位置並對光學膜照射第一紫外光。
As shown in FIG. 2B, the inner fixed
一些實施例中,如第2A~2B圖所示,第一貼合輥輪100A更可選擇性的包括一濾光片160,濾光片160設置於凹槽130r的開口130s處,第一紫外光先通過濾光片160才從開口130s射出。實施例中,第一貼合輥輪100A更可包括一固定架170,濾光片160經由固定架170而固定於內層固定輥輪130上。
In some embodiments, as shown in FIGS. 2A to 2B, the
一些實施例中,如第2B圖所示,濾光片160的長度例如和開口130s的長度L1相同。一些實施例中,如第2B圖所示,濾光片160沿開口130s的長度L1方向具有多個區域(本實施例繪示三個區域,區域160A、160B和160C,然本揭露內容並不以此為限),且此些區域的光穿透率及/或光穿透波長範圍係不同。舉例而言,如第2B圖所示的實施例中,區域160C的光穿透率大於區域160B的光穿透率,區域160B的光穿透率大於區域160A的光穿透率,但本揭露內容不限於此。濾光片160的區域的數目及各個區域的的光穿透率大小關係及/或光穿透波長範圍的配置可依實際需要調整改變。經由濾光片160的設計,則可以調整第一紫外光照射裝置120沿開口130s的長度L1方向的出光量,例如調整其出光量及/或穿透的光波長範圍。
In some embodiments, as shown in FIG. 2B, the length of the
本揭露內容更提供一種光學膜的製造方法,本揭露內容之光學膜的製造方法可以應用前述的貼合系統而實現。 The present disclosure further provides a manufacturing method of an optical film. The manufacturing method of the optical film of the present disclosure can be implemented by applying the aforementioned bonding system.
根據本揭露內容的一些實施例,光學膜的製造方法可包括以下步驟:提供一第一光學膜和一第二光學膜;塗佈一紫外光固化型接著劑於第一光學膜上或第二光學膜上;以及同時貼合及提供一第一紫外光於第一光學膜和第二光學膜以形成一積層膜。 According to some embodiments of the present disclosure, the manufacturing method of the optical film may include the following steps: providing a first optical film and a second optical film; coating a UV-curable adhesive on the first optical film or the second optical film On the optical film; and simultaneously bonding and providing a first ultraviolet light on the first optical film and the second optical film to form a laminated film.
以下係參照第1圖說明本揭露內容的一實施例之光學膜的製造方法。實施例僅用以作為範例說明,並不會限縮本發明欲保護之範圍。 Hereinafter, referring to FIG. 1, a method of manufacturing an optical film according to an embodiment of the disclosure will be described. The embodiments are only used as examples for description, and do not limit the scope of the present invention to be protected.
如第1圖所示,以塗佈裝置300將一紫外光固化型接著劑400塗佈於第一光學膜510上。實施例中,可選擇性地以塗佈裝置310將一紫外光固化型接著劑410塗佈於第三光學膜530上。根據一些其他實施例,請參照第1A~1B圖,此階段亦可以塗佈裝置300將紫外光固化型接著劑400塗佈於第二光學膜520上,或者以塗佈裝置300和310分別將紫外光固化型接著劑400和410塗佈於第二光學膜520的相對之兩表面上。
As shown in FIG. 1, an ultraviolet
接著,沿輸送方向D1,第一光學膜510、第二光學膜520及/或第三光學膜530輸送至第一貼合輥輪100和第二貼合輥輪200之間進行貼合以形成一積層膜500。實施例中,可選擇性的進一步以按壓輥輪800和810的其中之一接觸並提供一壓力至第一貼合輥輪100和第二貼合輥輪200之至少其中之一,進行加壓貼合可提高光學膜的表面平坦性。
Next, along the conveying direction D1, the first
貼合第一光學膜510、第二光學膜520及/或第三光學膜530時,同時以第一紫外光照射裝置120提供一第一紫外光照射第一光學膜510、第二光學膜520及/或第三光學膜530。實施例中,第一紫外光的照射時間例如是0.01~0.05秒,及/或第一紫外光的能量強度例如是10~100毫焦/平方公分(mj/cm2),及/或第一紫外光的照度例如是10~700毫瓦/平方公分(mw/cm2)。
When bonding the first
以第一紫外光照射後,第一光學膜510、第二光學膜520及/或第三光學膜530上的紫外光固化型接著劑400及/或410係部分固化。實施例中,第一紫外光使紫外光固化型接著劑的固化交聯反應率係等於或小於40%,較佳為介於10~20%。
After being irradiated with the first ultraviolet light, the ultraviolet
根據本揭露內容之實施例,第一紫外光僅用來提供部分固化,此時的紫外光固化型接著劑具有一定程度的黏度,有利於平坦膜面的定型,但因為並未完全固化,因此此時的第一光學膜510、第二光學膜520及/或第三光學膜530之整體結構不至於太硬或太脆,而導致反而在後續的輸送或製程中發生破損或形變。
According to the embodiment of the present disclosure, the first ultraviolet light is only used to provide partial curing. At this time, the ultraviolet curable adhesive has a certain degree of viscosity, which is beneficial to the setting of the flat film surface, but because it is not completely cured, At this time, the overall structure of the first
接著,以第一紫外光照射之後,提供一第二紫外光於積層膜500。舉例而言,實施例中,第一光學膜510、第二光學膜520和第三光學膜530形成積層膜500後,可沿輸送方向D1輸送至第二紫外光照射裝置700,以第二紫外光照射裝置700提供一第二紫外光照射積層膜500裡的紫外光固化型接著劑400及/或410,使紫外光固化型接著劑400及/或410完全固化,而製作成完全定型而具有平坦表面的積層膜500。實施例中,第二紫外光照射裝置700與積層膜500之距離介於200~300毫米。
Then, after irradiating with the first ultraviolet light, a second ultraviolet light is provided to the
實施例中,第二紫外光的照射時間例如是1~2.5秒,及/或第二紫外光的能量強度例如是120~300毫焦/平方公分(mj/cm2),及/或第二紫外光的照度例如是1000~4000毫瓦/平方公分(mw/cm2)。 In an embodiment, the irradiation time of the second ultraviolet light is, for example, 1 to 2.5 seconds, and/or the energy intensity of the second ultraviolet light is, for example, 120 to 300 millijoules/cm 2 (mj/cm 2 ), and/or the second The illuminance of the ultraviolet light is, for example, 1000 to 4000 milliwatts/cm 2 (mw/cm 2 ).
具體而言,由於照射紫外光會產生高溫,因此第一紫外光的照射時間不能太長,及/或能量強度不能太大,以避免在貼合第一
光學膜510、第二光學膜520和第三光學膜530時產生高溫損壞上述光學膜。另一方面,為了使紫外光固化型接著劑完全固化,第二紫外光的照射時間需維持在一定時間,及/或能量強度需維持在一定強度。
Specifically, because the ultraviolet light will produce high temperature, the irradiation time of the first ultraviolet light should not be too long, and/or the energy intensity should not be too large, so as to avoid the first UV
When the
據此,在一些實施例中,第二紫外光的照射時間大於第一紫外光的照射時間,及/或第二紫外光的能量強度大於第一紫外光的能量強度,及/或第二紫外光的照度大於第一紫外光的照度,使得第二光學膜520在加壓貼合時可藉由部分固化的紫外光固化型接著劑400及/或410而固定於第一光學膜510及/或第三光學膜530,防止在往後輸送的過程中的拉扯或張力拉伸而在第二光學膜520上形成紋路,及同時避免第二光學膜520在加壓貼合時因高溫而損壞。然後再透過第二紫外光使紫外光固化型接著劑400及/或410完全固化,而製作成完全定型而具有平坦表面的積層膜500。
Accordingly, in some embodiments, the irradiation time of the second ultraviolet light is greater than the irradiation time of the first ultraviolet light, and/or the energy intensity of the second ultraviolet light is greater than the energy intensity of the first ultraviolet light, and/or the second ultraviolet light The illuminance of the light is greater than the illuminance of the first ultraviolet light, so that the second
在一些實施例中,在提供第二紫外光時,可同時對積層膜500進行冷卻,例如利用第1圖之冷卻輥輪600,藉以避免積層膜500因高溫而損壞。
In some embodiments, when the second ultraviolet light is provided, the
綜上所述,雖然本發明已以實施例揭露如上,然其並非用以限定本發明。本發明所屬技術領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可作各種之更動與潤飾。因此,本發明之保護範圍當視後附之申請專利範圍所界定者為準。 In summary, although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Those who have ordinary knowledge in the technical field to which the present invention belongs can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope.
1:貼合系統 1: Fitting system
10:貼合裝置 10: Fitting device
100:第一貼合輥輪 100: The first bonding roller
110:外層中空輥輪 110: Outer hollow roller
120:第一紫外光照射裝置 120: The first ultraviolet light irradiation device
130:內層固定輥輪 130: inner fixed roller
130r:凹槽 130r: groove
130s:開口 130s: opening
140:固定軸 140: fixed shaft
150:軸承 150: bearing
200:第二貼合輥輪 200: The second bonding roller
300、310:塗佈裝置 300, 310: Coating device
400、410:紫外光固化型接著劑 400, 410: UV curing adhesive
500:積層膜 500: laminated film
510:第一光學膜 510: The first optical film
520:第二光學膜 520: second optical film
530:第三光學膜 530: The third optical film
600:冷卻輥輪 600: cooling roller
700:第二紫外光照射裝置 700: The second ultraviolet light irradiation device
800、810:按壓輥輪 800, 810: pressing roller
D1:輸送方向 D1: Conveying direction
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW106127849A TWI708675B (en) | 2017-08-16 | 2017-08-16 | Manufacturing method of optical film |
CN201710947623.3A CN107450122B (en) | 2017-08-16 | 2017-10-12 | Bonding system and method for manufacturing optical film using same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW106127849A TWI708675B (en) | 2017-08-16 | 2017-08-16 | Manufacturing method of optical film |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201910107A TW201910107A (en) | 2019-03-16 |
TWI708675B true TWI708675B (en) | 2020-11-01 |
Family
ID=60498700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW106127849A TWI708675B (en) | 2017-08-16 | 2017-08-16 | Manufacturing method of optical film |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN107450122B (en) |
TW (1) | TWI708675B (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW201331638A (en) * | 2011-10-07 | 2013-08-01 | Sumitomo Chemical Co | Method for producing polarizing plate |
TW201436998A (en) * | 2013-03-22 | 2014-10-01 | Hon Hai Prec Ind Co Ltd | Device for manufacturing optical film and a method for manufacturing the same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102331592A (en) * | 2010-07-14 | 2012-01-25 | 鸿富锦精密工业(深圳)有限公司 | Optical film manufacturing device and manufacturing method |
JP2012208187A (en) * | 2011-03-29 | 2012-10-25 | Sumitomo Chemical Co Ltd | Method for manufacturing polarizing plate |
-
2017
- 2017-08-16 TW TW106127849A patent/TWI708675B/en active
- 2017-10-12 CN CN201710947623.3A patent/CN107450122B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW201331638A (en) * | 2011-10-07 | 2013-08-01 | Sumitomo Chemical Co | Method for producing polarizing plate |
TWI545356B (en) * | 2011-10-07 | 2016-08-11 | 住友化學股份有限公司 | Method for producing polarizing plate |
TW201436998A (en) * | 2013-03-22 | 2014-10-01 | Hon Hai Prec Ind Co Ltd | Device for manufacturing optical film and a method for manufacturing the same |
Also Published As
Publication number | Publication date |
---|---|
TW201910107A (en) | 2019-03-16 |
CN107450122A (en) | 2017-12-08 |
CN107450122B (en) | 2020-08-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5407527B2 (en) | Manufacturing method of optical display panel | |
JP4861968B2 (en) | Manufacturing method of polarizing plate | |
TWI541569B (en) | Apparatus and method for manufacturing polarizing plate | |
KR101945572B1 (en) | Method for manufacturing polarizing plate | |
KR101956953B1 (en) | Method for manufacturing polarizer | |
JP2008122502A (en) | Method of manufacturing polarizing plate | |
KR20190033505A (en) | Process for producing polarizing plate | |
KR101750147B1 (en) | Method for manufacturing polarizer | |
KR20140118865A (en) | Method for manufacturing polarizing plate, polarizing plate, optical film and image display device | |
KR20140088540A (en) | Method for manufacturing polarizer | |
JP2010191203A (en) | Method for manufacturing polarizing plate | |
WO2013133063A1 (en) | Polarization plate manufacturing method | |
KR101935080B1 (en) | Method for manufacturing polarizer | |
TWI708675B (en) | Manufacturing method of optical film | |
TWI708676B (en) | Lamination system | |
TWI701148B (en) | Method for producing laminated optical film and apparaties for producing laminated optical film | |
KR102675419B1 (en) | Method for producing laminated optical film | |
JP5950002B2 (en) | Manufacturing method of polarizing plate | |
TWI808193B (en) | Method for manufacturing liquid crystal film and method for manufacturing optical laminate | |
TWI785994B (en) | Ultraviolet light irradiation device, polarizing plate laminating apparatus using the same, and polarizing plate laminating method | |
KR102206956B1 (en) | Method for manufacturing polarizing plate | |
JP2019215472A (en) | Laminate with adhesion layer, laminate, liquid crystal layer laminate, method for manufacturing liquid crystal film, and method for manufacturing optical laminate | |
WO2023153186A1 (en) | Method for manufacturing polarizer | |
JP6886413B2 (en) | Multilayer film manufacturing equipment and transport rolls | |
JP6909270B2 (en) | Polarizing plate manufacturing method and manufacturing equipment |