WO2016190021A1 - 偏光板製造用クリーンルーム - Google Patents
偏光板製造用クリーンルーム Download PDFInfo
- Publication number
- WO2016190021A1 WO2016190021A1 PCT/JP2016/062906 JP2016062906W WO2016190021A1 WO 2016190021 A1 WO2016190021 A1 WO 2016190021A1 JP 2016062906 W JP2016062906 W JP 2016062906W WO 2016190021 A1 WO2016190021 A1 WO 2016190021A1
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- WIPO (PCT)
- Prior art keywords
- polarizing plate
- clean room
- manufacturing
- flat panel
- film
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/06—Flooring or floor layers composed of a number of similar elements of metal, whether or not in combination with other material
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
Definitions
- the present invention relates to a clean room for manufacturing a polarizing plate.
- the polarizing plate is widely used as a polarizing element in an image display device such as a liquid crystal display device.
- a polarizing plate the thing of the structure which bonded the transparent resin film (protective film etc.) on the single side
- the manufacturing process of the polarizing plate including the manufacturing of the polarizing film is usually performed in a clean room in order to minimize the contamination of the intermediate or the product by the foreign matter.
- JP-A-4-214875 (Patent Document 1) is a patent document relating to a clean room that is not used for manufacturing a polarizing plate.
- the present invention aims to improve cleanliness in a clean room for manufacturing a polarizing plate.
- a clean room for manufacturing a polarizing plate which is a clean room for accommodating a polarizing plate manufacturing apparatus, wherein at least a part of the floor surface is composed of a flat panel made of stainless steel.
- the polarizing plate manufacturing apparatus includes a laminated film manufacturing apparatus for laminating two or more films to obtain a laminated film, The clean room for manufacturing a polarizing plate according to [2], wherein the grating panel is arranged adjacent to or near a floor surface on which the laminated film manufacturing apparatus is installed.
- the flat panel includes a flat panel having an 85 degree specular gloss of 120 or less in accordance with JIS Z8741: 1997 on the surface. Clean room.
- the polarizing plate manufacturing clean room includes an inspection region for inspecting a polarizing plate or a film constituting the polarizing plate,
- region is a clean room for polarizing plate manufacture as described in [4] arrange
- This invention relates to the clean room for polarizing plate manufacture which accommodates a polarizing plate manufacturing apparatus.
- the clean room according to the present invention at least a part of the floor surface is made of stainless steel, and preferably, at least a part of the floor surface is made of a flat panel made of stainless steel.
- the flat panel is a flat plate that does not have a hole penetrating in the thickness direction, and is distinguished from a later-described grating panel (punching panel) having a through hole in this respect.
- the clean room according to the present invention uses stainless steel having excellent strength and corrosion resistance (rust resistance), dust generation and peeling from the floor surface are unlikely to occur, and excellent cleanliness.
- rust resistance corrosion resistance
- the coating may be dusted or peeled off due to friction or impact, so there is room for improvement in terms of cleanliness. It was.
- the floor surface of the clean room according to the present invention can be entirely or partially covered with a plurality of flat panels made of stainless steel. By constructing the floor using panels, the floor can be replaced easily. By making the surface of the flat panel smooth, it is possible to improve the cleanability of the floor surface. Therefore, it is preferable that the surface of the flat panel is smooth in order to improve cleanliness.
- the floor surface of the clean room according to the present invention preferably further includes a grating panel (punching panel).
- FIG. 1 is a cross-sectional view schematically showing an example of a clean room for producing a polarizing plate according to the present invention.
- the clean room shown in FIG. 1 is configured as a clean system including an air circulation system, and includes a chamber (clean room) 1 and an air circulation system that controls the flow of air in the chamber 1.
- the chamber 1 is divided into a ceiling part 5, a floor lower part 6, and a manufacturing apparatus installation part 7 between them.
- a polarizing plate manufacturing apparatus 9 is installed on the floor surface.
- a filter 4 such as a HEPA filter is installed between the ceiling part 5 and the manufacturing apparatus installation part 7, and clean air 8 is supplied from the ceiling part 5 to the manufacturing apparatus installation part 7 via the filter 4.
- the filter 4 may further include a fan.
- the air in the manufacturing apparatus installation part 7 has the flow which goes to the floor lower part 6 side from the ceiling part 5 side.
- the manufacturing apparatus installation part 7 and the floor lower part 6 are divided by a floor material. In the example shown in FIG. 1, this floor material is composed of a flat panel 2 made of stainless steel and a grating panel 3 having a smooth surface. ing.
- the polarizing plate manufacturing apparatus 9 may include any manufacturing apparatus (manufacturing line) used for manufacturing a polarizing plate.
- polarizing plate manufacturing is composed of a plurality of manufacturing processes, but the polarizing plate manufacturing apparatus 9 may be a manufacturing apparatus for performing one manufacturing process among the plurality of manufacturing processes, or two or more. Alternatively, two or more manufacturing apparatuses for performing all the manufacturing steps may be included. Examples of manufacturing apparatuses that can be included in the polarizing plate manufacturing apparatus 9 are given below.
- An apparatus for producing a stretched film that is an intermediate of a polarizing film by stretching a raw film such as a polyvinyl alcohol resin film.
- An apparatus for producing a polarizing film by dyeing the stretched film with a dichroic dye such as iodine this apparatus may include an apparatus for drying the dyed film.
- a device for producing a polarizing plate by laminating a transparent resin film (such as a protective film or an optical compensation film) on one side or both sides of the polarizing film this device is used to dry an adhesive used for film laminating and And / or a device for curing).
- An apparatus for laminating a protective film and / or an adhesive layer on a polarizing plate 4) An apparatus for laminating a protective film and / or an adhesive layer on a polarizing plate, 5) A device for laminating other optical functional films (such as retardation film and brightness enhancement film) on the polarizing plate, 6) Equipment for inspecting polarizing plates and their intermediates, 7) An apparatus for producing a sheet by cutting a polarizing plate.
- the air circulation system is a first circulation system (line D ⁇ I ⁇ B ⁇ A) for returning the air in the lower floor 6 to the ceiling part 5, and the air in the manufacturing apparatus installation part 7 is the ceiling part. 5 to return to the second circulation system (line F ⁇ I ⁇ B ⁇ A), the outside air supply system (line G ⁇ J ⁇ C ⁇ A) for supplying outside air to the ceiling 5, and the air in the lower floor 6 to the outside Includes exhaust system.
- Air circulation in the first and second circulation systems can be performed using the fan 10.
- the outside air supply in the outside air supply system can be performed using the fan 11.
- the fan 11 may have an air conditioning function that adjusts the temperature and / or humidity of the outside air.
- the clean room according to the present invention does not necessarily have all of the first circulation system, the second circulation system, the outside air supply system, and the discharge system, and one or more of these may be omitted.
- the clean room according to the present invention may include an air movement line other than these.
- the air circulation system With the air circulation system, it is possible to always supply clean air from the ceiling 5 to the manufacturing apparatus installation section 7 and to drop foreign matters such as dust, dust and dust floating in the manufacturing apparatus installation section 7 in the direction of the floor. And the inside of the manufacturing apparatus installation section 7 can be kept clean.
- the foreign matter is basically removed through the grating panel 3.
- a part of the flooring is composed of a flat panel 2 made of stainless steel with a smooth surface, foreign matter (such as rust) derived from the flooring is hardly generated, and the floor surface is excellent in cleanability. .
- an air outlet in the manufacturing apparatus installation section 7 can be provided on the side wall surface (preferably the side wall surface near the floor surface), and air circulation can be performed using the second circulation system. It is advantageous to reduce the grating panel 3 and use as many flat panels 2 made of stainless steel as possible in order to improve the cleanliness and cleanability in the manufacturing apparatus installation section 7, and install the polarizing plate manufacturing apparatus 9 This is also advantageous in increasing the possible floor area and increasing the degree of freedom in the layout design of the polarizing plate manufacturing apparatus 9.
- the floor surface with the flat panel 2 made of stainless steel is suitable for enhancing the durability of the floor.
- the floor surface corresponding to the transportation route of heavy objects such as raw material films is constituted by the flat panel 2.
- the type of stainless steel constituting the flat panel 2 is not particularly limited.
- the thickness of the flat panel 2 is, for example, 0.5 to 100 mm.
- the flat panel 2 has, for example, a rectangular shape, and the length of one side is, for example, 15 cm to 5 m.
- the flat panel 2 may form a floor material by itself as in the example shown in FIG. 1, or may be laminated and fixed on the base floor. Further, the lower floor portion 6 may be formed directly below the grating panel 3 without forming the lower floor portion 6 directly below the flat panel 2. Therefore, when the floor material is composed of only the flat panel 2, the lower floor portion 6 is not necessarily required.
- the use of the grating panel 3 is advantageous in that it can efficiently remove foreign substances floating in the vicinity where the grating panel 3 is installed. Therefore, when the grating panel 3 is used, it can be installed adjacent to or in the vicinity of an area that requires a particularly high degree of cleanness in the manufacturing apparatus installation section 7 or an area where the degree of cleanliness tends to be low. preferable.
- an area where a particularly high degree of cleanness is required for example, an area where a laminated film manufacturing apparatus for obtaining a laminated film by laminating two or more films can be cited. This is because it is difficult to remove foreign matters mixed between the films.
- Specific examples of the laminated film production apparatus are the above 3) to 5).
- the grating panel 3 is a panel having preferably a plurality of holes penetrating in the thickness direction, and conventionally known ones can be used.
- the cross-sectional shape of the hole is not particularly limited, and may be a round shape such as a circle or an ellipse in addition to a square shape (including a slit shape).
- the material of the grating panel 3 may be stainless steel as with the flat panel 2, or may be a metal or alloy other than this. For example, a material other than a metal such as a resin may be used.
- the thickness of the grating panel 3 is, for example, 0.5 to 100 mm.
- the grating panel 3 has, for example, a rectangular shape, and the length of one side is, for example, 15 cm to 5 m.
- the floor surface is composed of a flat panel made of stainless steel, and the flat panel has a surface 85 degree specular gloss of 120 or less. Except for including a flat panel, it has the same configuration as the clean room according to the first embodiment.
- the 85-degree specular glossiness of the flat panel surface is measured according to JIS Z8741: 1997.
- a flat panel having an 85 degree specular gloss of 120 or less may be arranged at any position on the floor surface, but is preferably arranged in an inspection area in a clean room for manufacturing a polarizing plate.
- the inspection area is an area for inspecting a product polarizing plate or a film constituting the product.
- an inspection apparatus for example, an optical inspection apparatus
- a special inspection apparatus must be installed.
- it includes a region where a manufacturing worker or the like performs inspection by visual inspection.
- the film constituting the polarizing plate is a raw film (polyvinyl alcohol resin film, etc.) and its stretched film, polarizing film, transparent resin film (protective film, optical compensation film, etc.), protective film, pressure-sensitive adhesive layer, other It refers to a raw material film or intermediate for producing a polarizing plate such as an optical functional film (retardation film, brightness enhancement film, etc.).
- the illuminance is set high in the clean room for manufacturing the polarizing plate. Even in such a case, the floor surface can be obtained by arranging the inspection area on the flat panel having a specular gloss of 85 degrees or less of 120 degrees. It is possible to more accurately carry out inspection by inspection equipment or visual inspection by suppressing light reflection due to. From the viewpoint of accuracy of inspection and ease of inspection, the 85-degree specular gloss is preferably 110 or less. If the 85-degree specular gloss exceeds 120, there is a possibility that the inspection apparatus and the visual inspection cannot be performed accurately due to the influence of ambient light.
- the inspection items of the inspection apparatus and the polarizing plate to be visually observed or the film constituting the inspection are not particularly limited.
- the presence or absence of defects that can refract light such as scratches and foreign matters; Hue, transmittance, moisture content, thickness and the like.
- the flat panel having an 85 degree specular gloss of 120 or less preferably has an 85 degree specular gloss of 10 or more, more preferably 50 or more.
- the 85 degree specular gloss is 10 or more, the floor surface can be cleaned.
- the following experiment verified the effect of the 85 degree specular gloss on the surface of the flat panel on the ease of inspection (accuracy).
- An experiment was conducted using a clean room for manufacturing a polarizing plate in which an inspection region for inspecting the presence or absence of defects (foreign matter, scratches, etc.) on the surface of a polarizing plate as a product was provided on a flat panel. Illumination was installed in the clean room, and the illuminance at the visual inspection position in the inspection area was about 1000 lux.
- the clean room according to the present invention has been described above by showing some embodiments.
- the clean room according to the present invention is not limited to a clean room for manufacturing a polarizing plate, and is an image using various optical members such as a clean room and a polarizing plate for manufacturing other optical films other than a polarizing plate used for an image display device or the like.
- the present invention can also be applied to a clean room for manufacturing a display device.
- the image display device include a liquid crystal display device and an organic EL display device.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
- Floor Finish (AREA)
- Ventilation (AREA)
Abstract
Description
[1] 偏光板製造装置を収容するクリーンルームであって、床面の少なくとも一部がステンレス鋼製の平面パネルで構成されている、偏光板製造用クリーンルーム。
前記積層フィルム製造装置が設置されている床面に隣接して、又はその近傍に前記グレーティングパネルを配する、[2]に記載の偏光板製造用クリーンルーム。
前記検査領域は、前記85度鏡面光沢度が120以下である平面パネルの上に配置される、[4]に記載の偏光板製造用クリーンルーム。
<第1実施形態>
図1は、本発明に係る偏光板製造用クリーンルームの一例を模式的に示す断面図である。図1に示されるクリーンルームは、空気循環系を含むクリーンシステムとして構成されており、チャンバ(クリーンルーム)1と、チャンバ1内の空気の流れを制御する空気循環系とを含む。
2)上記延伸フィルムをヨウ素等の二色性色素で染色して偏光フィルムを製造するための装置(この装置は、染色後のフィルムを乾燥させるための装置を含んでいてもよい。)、
3)上記偏光フィルムの片面又は両面に透明樹脂フィルム(保護フィルムや光学補償フィルム等)を貼合して偏光板を製造するための装置(この装置は、フィルム貼合に用いる接着剤を乾燥及び/又は硬化させるための装置を含んでいてもよい。)、
4)偏光板にプロテクトフィルム及び/又は粘着剤層を積層させるための装置、
5)偏光板に他の光学機能性フィルム(位相差フィルムや輝度向上フィルムなど)を積層させるための装置、
6)偏光板やその中間体を検品するための装置、
7)偏光板を裁断して枚葉体を製造するための装置。
本実施形態に係る偏光板製造用クリーンルームは、床面の少なくとも一部がステンレス鋼製の平面パネルで構成されており、かつ、該平面パネルが、表面の85度鏡面光沢度が120以下である平面パネルを含むこと以外は上記第1実施形態に係るクリーンルームと同様の構成を有している。平面パネル表面の85度鏡面光沢度は、JIS Z8741:1997に準拠して測定される。
Claims (5)
- 偏光板製造装置を収容するクリーンルームであって、床面の少なくとも一部がステンレス鋼製の平面パネルで構成されている、偏光板製造用クリーンルーム。
- 前記床面が前記平面パネルとグレーティングパネルとで構成されている、請求項1に記載の偏光板製造用クリーンルーム。
- 前記偏光板製造装置は、2以上のフィルムを貼り合わせて積層フィルムを得るための積層フィルム製造装置を含み、
前記積層フィルム製造装置が設置されている床面に隣接して、又はその近傍に前記グレーティングパネルを配する、請求項2に記載の偏光板製造用クリーンルーム。 - 前記平面パネルは、その表面のJIS Z8741:1997に準拠する85度鏡面光沢度が120以下である平面パネルを含む、請求項1~3のいずれか1項に記載の偏光板製造用クリーンルーム。
- 前記偏光板製造用クリーンルームは、偏光板又はこれを構成するフィルムを検査するための検査領域を含み、
前記検査領域は、前記85度鏡面光沢度が120以下である平面パネルの上に配置される、請求項4に記載の偏光板製造用クリーンルーム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020177030262A KR20180016339A (ko) | 2015-05-26 | 2016-04-25 | 편광판 제조용 클린룸 |
JP2017520573A JP6730268B2 (ja) | 2015-05-26 | 2016-04-25 | 偏光板製造用クリーンルーム |
CN201680028211.3A CN107532431A (zh) | 2015-05-26 | 2016-04-25 | 偏振板制造用净化间 |
Applications Claiming Priority (2)
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JP2015106329 | 2015-05-26 | ||
JP2015-106329 | 2015-05-26 |
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WO2016190021A1 true WO2016190021A1 (ja) | 2016-12-01 |
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PCT/JP2016/062906 WO2016190021A1 (ja) | 2015-05-26 | 2016-04-25 | 偏光板製造用クリーンルーム |
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JP (1) | JP6730268B2 (ja) |
KR (1) | KR20180016339A (ja) |
CN (1) | CN107532431A (ja) |
TW (1) | TWI706075B (ja) |
WO (1) | WO2016190021A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2019035956A (ja) * | 2017-08-16 | 2019-03-07 | 住友化学株式会社 | 偏光フィルムの製造方法及び製造システム |
Citations (4)
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JP2005523424A (ja) * | 2001-11-27 | 2005-08-04 | エレクトロ サイエンティフィック インダストリーズ インコーポレーテッド | 影形成装置 |
JP2006157036A (ja) * | 1999-08-16 | 2006-06-15 | Tokyo Electron Ltd | 半導体製造装置の搬入設置方法及び装置代用体 |
JP5456403B2 (ja) * | 2009-07-28 | 2014-03-26 | 鹿島建設株式会社 | クリーンルームの床構造及びその施工方法 |
JP2015047749A (ja) * | 2013-08-30 | 2015-03-16 | 日東電工株式会社 | フィルム積層体の製造方法及びフィルム積層体の製造設備 |
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CN1502760A (zh) * | 2002-11-27 | 2004-06-09 | 汉唐集成股份有限公司 | 板条交错搭接焊接式高架地板的制造方法 |
JP4525789B2 (ja) * | 2008-04-17 | 2010-08-18 | 株式会社デンソー | 作業設備および作業設備における局所クリーンルーム |
CN204252480U (zh) * | 2014-11-18 | 2015-04-08 | 苏州市海魄洁净环境工程有限公司 | 一种洁净室的底板 |
-
2016
- 2016-04-25 KR KR1020177030262A patent/KR20180016339A/ko not_active Application Discontinuation
- 2016-04-25 JP JP2017520573A patent/JP6730268B2/ja active Active
- 2016-04-25 CN CN201680028211.3A patent/CN107532431A/zh active Pending
- 2016-04-25 WO PCT/JP2016/062906 patent/WO2016190021A1/ja active Application Filing
- 2016-05-11 TW TW105114529A patent/TWI706075B/zh active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006157036A (ja) * | 1999-08-16 | 2006-06-15 | Tokyo Electron Ltd | 半導体製造装置の搬入設置方法及び装置代用体 |
JP2005523424A (ja) * | 2001-11-27 | 2005-08-04 | エレクトロ サイエンティフィック インダストリーズ インコーポレーテッド | 影形成装置 |
JP5456403B2 (ja) * | 2009-07-28 | 2014-03-26 | 鹿島建設株式会社 | クリーンルームの床構造及びその施工方法 |
JP2015047749A (ja) * | 2013-08-30 | 2015-03-16 | 日東電工株式会社 | フィルム積層体の製造方法及びフィルム積層体の製造設備 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019035956A (ja) * | 2017-08-16 | 2019-03-07 | 住友化学株式会社 | 偏光フィルムの製造方法及び製造システム |
JP7217599B2 (ja) | 2017-08-16 | 2023-02-03 | 住友化学株式会社 | 偏光フィルムの製造方法及び製造システム |
Also Published As
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JPWO2016190021A1 (ja) | 2018-03-08 |
KR20180016339A (ko) | 2018-02-14 |
JP6730268B2 (ja) | 2020-07-29 |
TWI706075B (zh) | 2020-10-01 |
CN107532431A (zh) | 2018-01-02 |
TW201700844A (zh) | 2017-01-01 |
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