TWI521261B - A method of manufacturing a plate-like joining body, a bonding apparatus, and a plate-like engaging body - Google Patents

A method of manufacturing a plate-like joining body, a bonding apparatus, and a plate-like engaging body Download PDF

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Publication number
TWI521261B
TWI521261B TW100147682A TW100147682A TWI521261B TW I521261 B TWI521261 B TW I521261B TW 100147682 A TW100147682 A TW 100147682A TW 100147682 A TW100147682 A TW 100147682A TW I521261 B TWI521261 B TW I521261B
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Taiwan
Prior art keywords
substrate
plate
polarizing plate
transparent resin
cover glass
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TW100147682A
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English (en)
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TW201239461A (en
Inventor
Kouichi Ogawa
Yoshihisa Shinya
Tomoyuki Toyoda
Yasumi Endo
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Dexerials Corp
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Publication of TW201239461A publication Critical patent/TW201239461A/zh
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Publication of TWI521261B publication Critical patent/TWI521261B/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/28Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0007Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0007Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
    • B32B37/003Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality to avoid air inclusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284Application of adhesive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/18Handling of layers or the laminate
    • B32B38/1866Handling of layers or the laminate conforming the layers or laminate to a convex or concave profile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4845Radiation curing adhesives, e.g. UV light curing adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/524Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by applying the adhesive from an outlet device in contact with, or almost in contact with, the surface of the part to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/54Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
    • B29C65/542Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts by injection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/342Preventing air-inclusions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/345Progressively making the joint, e.g. starting from the middle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/733General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence
    • B29C66/7336General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light
    • B29C66/73365General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light at least one of the parts to be joined being transparent or translucent to visible light
    • B29C66/73366General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light at least one of the parts to be joined being transparent or translucent to visible light both parts to be joined being transparent or translucent to visible light
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/26Polymeric coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/412Transparent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/42Polarizing, birefringent, filtering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00Treatment by energy or chemical effects
    • B32B2310/08Treatment by energy or chemical effects by wave energy or particle radiation
    • B32B2310/0806Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
    • B32B2310/0831Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation using UV radiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00Electrical equipment
    • B32B2457/20Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/202LCD, i.e. liquid crystal displays
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10Methods 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284Application of adhesive
    • B32B37/1292Application of adhesive selectively, e.g. in stripes, in patterns
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331Cover glasses
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00Materials and properties
    • G02F2202/28Adhesive materials or arrangements

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Quality & Reliability (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Liquid Crystal (AREA)

Description

板狀接合體之製造方法、接合裝置及板狀接合體
本發明係關於一種接合板狀體而成之板狀接合體之製造方法、板狀體之接合裝置、及藉此而製得之板狀接合體,可特別適合用於藉由在大型之板狀體間填充填充劑製造之板狀接合體。
本申請案係基於2010年12月22日在日本提出申請之日本發明申請編號特願2010-285690主張優先權,並藉由參照該申請案而引用於本文。
先前,使用液晶顯示面板來作為用於電視或個人電腦、個人數位助理、行動電話等之影像顯示裝置之情形增多。其中,利用與玻璃罩同等之折射率之透明樹脂將玻璃罩與液晶顯示面板貼合而成之液晶顯示裝置,在對比度或顏色、清晰感等畫質品質之方面、及液晶顯示面板之耐衝擊性之方面較為有利。
於此種影像顯示裝置中,若於將透明樹脂填充於玻璃罩與液晶顯示面板之間時混入氣泡,則在光之入射時會成為亮點,使畫質品質明顯下降,故要求在不會使氣泡殘留於基板間下進行貼合。
通常,作為利用液狀透明樹脂將液晶顯示面板與玻璃罩等此2個基板貼合之方法,有所謂反轉方式。反轉方式如圖8所示,於貼合之一對基板100、101中一邊的基板100之接著面塗佈液狀接著劑102(圖8A),使該基板100反轉 而使接著劑之塗佈面與另一基板101之接著面對向(圖8B)。而且,藉由使基板100、101接近、壓接(圖8C),而使接著劑102潤濕擴散於基板100、101間(圖8D)。
然而,因於反轉方式中會將塗佈有液狀接著劑之基板反轉,故接著劑之滴下會導致在反轉時等接著劑飛散而在特定位置以外亦附著有接著劑之虞。因此,於基板100、101之貼合時混入氣泡,又,無法一面自基板100、101間排除氣泡一面潤濕擴散,因而殘留氣泡。進而,於反轉方式中,貼合之基板越大型化,製造設備就必須越大型化,且製造成本亦會上升。
又,作為DVD等之碟片基板之貼合方法,有所謂間隙分配方式。間隙分配方式如圖9所示,以特定間隔對向保持貼合之一對基板110、111(圖9A),並於該基板110、111間插入分配噴嘴112(圖9B)。而且,一面使接著劑113接觸兩基板一面自分配噴嘴112注入(圖9C),繼而,藉由使兩基板110、111旋轉而使接著劑113擴散於整個兩基板間(圖9D)。
該間隙分配方式可藉由一面使接著劑113接觸於對向保持之兩基板之接著面,一面進行供給,而有效地防止基板之貼合時混入氣泡。又,間隙分配方式可於接著劑注入後,藉由將基板旋轉而使接著劑擴散於兩基板之整個面,並且將多餘之接著劑甩向外周,且排除氣泡。
然而,若欲將該間隙分配方式應用於大型基板之貼合,則因大型基板之接著面積較大,且形狀亦為矩形狀, 故並非藉由旋轉而使接著劑擴散,而是藉由使基板接近而使接著劑潤濕擴散於整個基板。因此,伴隨基板之大型化,接著劑之潤濕擴散所需之時間變長,而使生產時間變長。
又,為了縮短潤濕擴散所需之時間,若將利用分配噴嘴進行之接著劑塗佈圖案設定於廣範圍,則有形成接著劑所致之閉塞區域且氣泡殘留之虞。又,對於防止此種閉塞區域之產生之接著劑描繪圖案有較多限制,且無法塗佈於基板之廣範圍,結果難以縮短潤濕擴散所需之時間。
[專利文獻1]日本特開2003-186011號公報
因此,本發明之目的在於提供一種可不使氣泡殘留而於短時間內展塗接著劑並使基板貼合之板狀接合體之製造方法、接合裝置及板狀接合體。
為解決上述課題,本發明之板狀接合體之製造方法具有:保持步驟,其使第1基板與第2基板之各接著面對向,且使該第2基板之接著面朝上述第1基板側彎曲並且保持於該第1基板上;噴出步驟,其將分配噴嘴插入於上述第1基板與上述第2基板之最接近位置,並使液狀填充劑一面附著於上述第1基板及第2基板一面自該分配噴嘴噴出;及填充步驟,其藉由將擠壓構件配置於與上述最接近位置對應之上述第2基板上,並於上述第2基板上移動,而使上述液狀填充劑潤濕擴散於上述第1及第2基板間;上述第2基板係對應上述擠壓構件之移動位置而與上述第1基板保持平行。
又,本發明之接合裝置具備:載置部,其載置有第1基板;支持部,其保持與上述第1基板對向之第2基板的端部,且使該第2基板之主面朝上述第1基板側彎曲並且支持於上述第1基板上;分配噴嘴,其插入於由上述載置部載置之上述第1基板與由上述支持部支持之上述第2基板的最接近位置,且噴出液狀填充劑於上述第1基板與上述第2基板之間;及擠壓構件,其被配置於與上述最接近位置對應之上述第2基板上並於上述第2基板上移動,藉此使上述液狀填充劑潤濕擴散於上述第1及第2基板間;上述第2基板係對應上述擠壓構件之移動位置而與上述第1基板保持平行。
又,本發明之板狀接合體係藉由上述板狀接合體之製造方法製造者。
根據本發明,藉由將液狀填充劑注入至第1基板及第2基板之最接近位置,而使液狀填充劑附著於第1基板及第2基板之兩面,並藉由層壓輥而自該位置展塗液狀填充劑。此時,於本發明中,由於對應層壓輥之滾動使第2基板之端部逐步保持為與第1基板平行,因此不會於液狀填充劑間混入氣泡,且由於對應層壓輥之滾動而逐步展塗液狀填充劑,故即便第1基板及第2基板大型化,亦可於短時間內進行整個面的填充。
以下,一面參照圖式,一面對應用本發明之板狀接合體之製造方法、接合裝置及板狀接合體詳細地進行說明。 本板狀體之接合裝置1係用於藉由透明樹脂將玻璃罩貼合於顯示面而成之大型電視監視器等液晶顯示面板的製造上。
[板狀接合體2]
作為板狀接合體2,雖適合用於例如具有32吋以上大小之大型電視監視器,但當然亦可用於較小之尺寸。於本實施形態中,作為一例,如圖1所示,對板狀接合體2進行說明,該板狀接合體2係利用具有與該玻璃罩6同等之折射率的透明樹脂7,將由對角尺寸40吋且厚度0.7 mm之強化玻璃板構成之玻璃罩6貼合於對角尺寸40吋之偏光板5而成,其中該偏光板5設置於由液晶層或配向膜等構成之液晶顯示面板4的顯示面。
作為透明樹脂7,例如使用即便填充於偏光板5及玻璃罩6之間,折射率亦控制成使光散射獲得抑制且不會損害液晶面板2之視認性的透明紫外線硬化型彈性樹脂。
又,透明樹脂7之黏度,即可同時地附著並填充於偏光板5及玻璃罩6,且可維持附著於保持為特定間隔之偏光板5及玻璃罩6的狀態之黏度,例如於700 mPa.s~5000 mPa.s之範圍選擇。又,根據此種透明樹脂7之黏度,將偏光板5及玻璃罩6之間隙尺寸設定在3.5 mm~10 mm之範圍。具體地,於本實施形態中,使用黏度為3500 mPa.s之紫外線硬化型透明彈性樹脂作為透明樹脂7,又,如下所述,將偏光板5及玻璃罩6最接近之位置的間隔保持為5.5 mm,並於該位置注入透明樹脂7。
根據此板狀接合體2,可藉由利用透明樹脂7將偏光板5與玻璃罩6貼合,而謀求對比度或顏色、清晰感等畫質品質之提高,並且可提高液晶顯示面板之耐衝擊性。
[接合裝置1]
將偏光板5與玻璃罩6經由透明樹脂7接合之接合裝置1如圖2及圖3所示,具備:載置部10,其載置有偏光板5;玻璃罩支持部11,其支持玻璃罩6使玻璃罩6與載置部10支持之偏光板5對向;分配噴嘴12,其將透明樹脂7注入於藉載置部10及玻璃罩支持部11對向保持之偏光板5及玻璃罩6之間;及層壓輥13,其於玻璃罩6上滾動使透明樹脂7潤濕擴散於偏光板5及玻璃罩6之間。
又,接合裝置1具備:噴嘴移動機構15,其使分配噴嘴12移動;擠壓機構16,其使透明樹脂7自分配噴嘴12之噴出口22噴出;升降機構17,其使玻璃罩支持部11升降;輥驅動機構18,其驅動層壓輥13;及控制部20,其控制該等各個機構15~18;此等皆配設於載台19上。
[載置部/支持部]
載置有偏光板5之載置部10係固定於載台19上,利用真空吸附等之手段,將偏光板5以接著面與玻璃罩6對向之方式保持為鉛垂方向朝上。
支持玻璃罩6之玻璃罩支持部11係利用卡止或真空吸附玻璃罩6之外周緣等保持手段,以與偏光板5之接著面朝向表面之方式保持玻璃罩6。藉此,玻璃罩6之長邊方向之中央部於寬度方向上向偏光板5側彎曲,玻璃罩6之彎 曲頂部成為與偏光板5之最接近位置A。
該最接近位置A具有如下間隔:藉由插入後述分配噴嘴12並注入透明樹脂7,而具有特定黏度之透明樹脂7於最接近位置A附著在偏光板5及玻璃罩6之彎曲頂部。例如於透明樹脂7之黏度為3500 mPa.s時,最接近位置A之間隔設定為5.5 mm。又,最接近位置A,藉由層壓輥13下降且逐步朝向玻璃罩6之長邊方向滾動,而使透明樹脂7一面附著於偏光板5及玻璃罩6,一面擴散。
該玻璃罩支持部11係藉由升降機構17而可升降地支持於載置部10上。升降機構17係由致動器等動力機構構成,使玻璃罩支持部11於圖2中箭頭Z方向及與箭頭Z相反之方向的上下方向升降。
升降機構17係於偏光板5或玻璃罩6由載置部10或玻璃罩支持部11支持時,使玻璃罩支持部11上升。又,升降機構17係於偏光板5及玻璃罩6之間注入透明樹脂7使之接合時,藉由以玻璃罩6接近偏光板5之方式使玻璃罩支持部11下降,而將偏光板5與玻璃罩6保持為可插入分配噴嘴12且可一面使透明樹脂7接觸偏光板5及玻璃罩6一面塗佈之特定間隔。而且,升降機構17係於填充透明樹脂7後,根據下述層壓輥13之滾動而使玻璃罩支持部11進一步下降,將玻璃罩6保持為與偏光板5平行,而在不使氣泡混入下使透明樹脂7擴展於偏光板5及玻璃罩6之整個面。
[分配噴嘴/噴嘴移動機構]
將透明樹脂7噴出至偏光板5及玻璃罩6之間的分配噴嘴12具有與保持於載置部10之偏光板5的主面平行地受到支持之筒狀體。又,分配噴嘴12係與供給透明樹脂7之注射器或貯槽等加壓機構21連接。又,分配噴嘴12被支持於如下高度,即,可藉由噴嘴移動機構15沿偏光板5及玻璃罩6之最接近位置A,在不與兩基板接觸下可於兩基板之間隙內進退。而且,分配噴嘴12係向圖3中與箭頭X相反之方向、圖2中箭頭Z方向及與紙面正交之方向移動,於偏光板5及玻璃罩6之間隙內,沿最接近位置A描繪利用透明樹脂7之特定之噴出圖案。
如圖4所示,該分配噴嘴12係由利用金屬或工業用塑膠形成之噴嘴本體12a、及包覆噴嘴本體12a之不會損傷偏光板5及玻璃罩6之柔軟之樹脂層12b構成。樹脂層12b係藉由將低摩擦性、耐磨損性、不濕性、耐蝕性等優異之樹脂例如氟系樹脂燒製塗裝於噴嘴本體12a之表面等而形成。再者,分配噴嘴12之剖面形狀並不限定於圓形,亦可為扁平圓或矩形。
就分配噴嘴12而言,於藉由形成樹脂層12b而一面於偏光板5及玻璃罩6之間隙移動一面噴出透明樹脂7時,即便於與偏光板5及玻璃罩6滑動接觸之情形時,亦無損傷偏光板5及玻璃罩6之虞。即,噴出噴嘴係由金屬或工業用塑膠形成,且藉由噴嘴移動機構15而一面沿最接近位置A移動於偏光板5及玻璃罩6之間隙,一面塗佈透明樹脂7。此時,分配噴嘴12係以不接觸偏光板5及玻璃罩6 之方式移動,但即便於因振動或彎曲等而接觸到偏光板5及玻璃罩6之情形時,亦由於以樹脂層12b包覆,故亦無損傷偏光板5及玻璃罩6之虞。
又,分配噴嘴12可藉由設置不濕性、耐蝕性優異之樹脂層12b,而防止於噴出停止後透明樹脂7亦自噴出口22滴下之所謂滴液。因此,分配噴嘴12可僅於特定部位塗佈透明樹脂7,可防止透明樹脂7附著於預設外之部位的情況。
進而,因分配噴嘴12可防止因與偏光板5及玻璃罩6接觸所造成的損傷,故可在不降低噴嘴移動機構15之移動速度下塗佈透明樹脂7。因此,於先噴出之透明樹脂7與後噴出之透明樹脂7之間,暴露於空氣中之時間亦無較大不同,填充特性或硬化特性亦不會產生差異。基板越大型化,透明樹脂7之塗佈步驟所需之時間越多,另一方面較理想的是不降低噴嘴移動速度而快速地結束透明樹脂7之塗佈,接合裝置1可在不降低噴嘴移動機構15之移動速度下塗佈透明樹脂7,因而較為有利。
又,分配噴嘴12如圖4A及圖4C所示,亦可藉由斜向切割前端之上面,而使噴出口22鉛垂方向朝上。藉此,若分配噴嘴12開始噴出透明樹脂7,則會使透明樹脂7附著於最初位於上方之玻璃罩6,其後,利用重力而附著於下方之偏光板5。而且,分配噴嘴12係一面噴出透明樹脂7一面於偏光板5及玻璃罩6之間隙內移動,如圖5所示,一直於透明樹脂7附著在偏光板5及玻璃罩6之兩面的狀態下進行塗佈。
如此,接合裝置1藉由以使分配噴嘴12之噴出口22朝向上方且一直使透明樹脂7附著於偏光板5及玻璃罩6之兩面之方式塗佈,而可防止於透明樹脂7中殘留氣泡。
[近接位置/彎曲頂部]
此種分配噴嘴12係藉由噴嘴移動機構15而插入於由玻璃罩支持部11保持之玻璃罩6之彎曲頂部與偏光板5之間。該位置為偏光板5與玻璃罩6最近接之最接近位置A,且於該位置A注入透明樹脂7。
而且,如圖7C所示,若分配噴嘴12自側邊插入於偏光板5及玻璃罩6之最接近位置A,則一面自寬度方向之一端側向插入端側(與箭頭X相反之方向)後退一面噴出透明樹脂7。藉此,分配噴嘴12可一面於最接近位置A使透明樹脂7附著於偏光板5及玻璃罩6之兩面而一面噴出。
再者,噴嘴移動機構15接收控制部20之控制訊號而使分配噴嘴12及加壓機構21與由載置部10載置之偏光板5平行地移動,例如具備相互正交之軌道機構。而且,噴嘴移動機構15將分配噴嘴12保持為朝向圖3中箭頭X所表示之偏光板5之寬度方向,於該箭頭X方向及與箭頭X相反之方向自由進退。又,噴嘴移動機構亦可於偏光板5之長邊方向(圖3中與箭頭X方向正交之方向,且與偏光板5平行之方向)移動,可使分配噴嘴12位置對準於最接近位置A。
供給透明樹脂7之加壓機構21儲存有自分配噴嘴12噴出之接著劑7。又,加壓機構21與使儲存之透明樹脂7 自分配噴嘴12噴出的擠壓機構16連接,從而進行透明樹脂7之噴出及噴出停止之控制、以及噴出壓力之控制。擠壓機構16例如使用壓縮乾燥空氣之鋼瓶並利用控制部20控制向加壓機構21內之氣體的供給及供給停止、以及供給壓力,並藉由將氣體以特定壓力供給至加壓機構21內而自分配噴嘴12噴出透明樹脂7。
[層壓輥]
層壓輥13使透明樹脂7潤濕擴散於藉分配噴嘴12注入有透明樹脂7之偏光板5及玻璃罩6間。層壓輥13呈圓柱形狀,藉由支持於輥驅動機構18,而可於玻璃罩6上升降,且可於玻璃罩6之長邊方向上滾動。
藉由輥驅動機構18,於長邊方向上將層壓輥13支持為與偏光板5及玻璃罩6之最接近位置A平行,並且下降至最接近位置A,且自最接近位置A滾動於偏光板5及玻璃罩6之長邊方向。藉此,層壓輥13將透明樹脂7展塗於滾動方向,可將透明樹脂7填充於偏光板5及玻璃罩6間之整個範圍。
又,層壓輥13具有:第1輥13a,其自偏光板5及玻璃罩6之最接近位置A向長邊方向之一側滾動;及第2輥13b,其自偏光板5及玻璃罩6之最接近位置A向長邊方向之另一側滾動。而且,若輥驅動機構18使第1輥13a下降至最接近位置A並向長邊方向之一側滾動,則使第2輥13b下降至最接近位置A並向長邊方向之另一側滾動。藉此,第1、第2輥13a、13b可使透明樹脂7填充於偏光板5及 玻璃罩6間之整個範圍。
又,對應利用輥驅動機構18之層壓輥13之滾動,上述升降機構17會使玻璃罩支持部11下降,而使玻璃罩6之外周緣部向偏光板5側下降。藉此,受到彎曲地支持之玻璃罩6會自最接近位置A向長邊方向之一端或另一端逐漸平坦化而與偏光板5平行,而不會受到因層壓輥13之滾動所產生之負荷。又,玻璃罩6會對應層壓輥13之滾動而被支持為與偏光板5具有特定間隔,故藉由逐漸附著潤濕擴散之透明樹脂7,而可將與偏光板5之間的空氣排出至外面,並且亦不會在與偏光板5之間殘留氣泡。
[板狀接合體2之製造步驟]
繼而,一面參照圖6及圖7,一面對製造使用此種接合裝置1將偏光板5與玻璃罩6貼合而成之板狀接合體2之步驟進行說明。於本實施形態中,作為一例,對製造如下之板狀接合體2之步驟進行說明,該板狀接合體2係利用具有與該玻璃罩6同等之折射率的透明樹脂7,將由對角尺寸50吋且厚度0.7 mm之強化玻璃板構成之玻璃罩6貼合於上述設置於液晶顯示面板之顯示面之長900 mm、寬500 mm、對角尺寸40吋的矩形狀偏光板5而成。
首先,偏光板5由載置部10載置。此時,偏光板5係於位置對準於載置部10後,以真空吸附等之手段保持,將與玻璃罩6之接著面設為鉛垂方向朝上。
而且,如圖6A、圖7A所示,偏光板5藉由在與玻璃罩6之接著面塗佈透明樹脂7而描繪圖案P。透明樹脂7較 佳為與後續之步驟中由分配噴嘴12注入之透明樹脂7為相同之樹脂,亦可為與透明樹脂7具有相同之折射率、同等之黏度(3500 mPa.s)且物性上無明顯差異之透明接著劑。又,於該透明樹脂7之塗佈步驟中,藉由層壓輥13之滾動,在不使氣泡混入下使透明樹脂7於偏光板5及玻璃罩6之整個面描繪潤濕擴散之圖案。例如,於本實施形態中,如圖7A所示,於偏光板5之寬度方向以特定間隔描繪長邊方向上由複數條線構成之圖案P。又,透明樹脂7之塗佈量係考慮硬化後之樹脂層之厚度而調整。例如,圖案P係描繪13條各線中心之間隔為33 mm且透明樹脂7之塗佈量為14 g之線,硬化後之樹脂層厚度為400μm。再者,圖案P之描繪步驟既可使用分配噴嘴12進行,亦可使用其他機構進行。
又,玻璃罩6由玻璃罩支持部11支持。此時,玻璃罩支持部11係藉由升降機構17而上升至載置部10之上方。玻璃罩支持部11利用自上側吸附等之手段將玻璃罩6之長邊方向兩端之外周緣保持20 mm左右。藉此玻璃罩6因本身重量而會使得長邊方向之中央部於寬度方向朝偏光板5側彎曲。此時,玻璃罩6如圖2所示,一端部與彎曲頂部之高度為100 mm左右。
於維持該狀態之情況下,升降機構17如圖6B、圖7B所示,使玻璃罩支持部11下降,並將玻璃罩6保持在彎曲頂部與偏光板5為特定間隔(5.5 mm)之高度。而且,該玻璃罩6之彎曲頂部與偏光板對向之位置成為插入分配噴 嘴12且層壓輥13下降之最接近位置A。
繼而,噴嘴移動機構15將分配噴嘴12自偏光板5及玻璃罩6之側邊插入於最接近位置A,並自寬度方向之一端側向插入端側(與箭頭X相反之方向)後退,並且擠壓機構16使加壓機構21內之透明樹脂7自分配噴嘴12噴出。如圖6C、圖7C所示,分配噴嘴12沿著將玻璃罩6之彎曲頂部與偏光板5以特定間隔保持之最接近位置A,一面向圖5及圖7C中與箭頭X相反之方向後退移動,一面噴出透明樹脂7,藉此於偏光板5及玻璃罩6之兩面描繪附著有透明樹脂7之近接圖案N。沿最接近位置A於偏光板5及玻璃罩6之寬度方向描繪該近接圖案N,藉此橫斷預先描繪於偏光板5之圖案P。再者,近接圖案N之透明樹脂7之塗佈量為例如15 g。
若最接近位置A之透明樹脂7之注入結束,則噴嘴移動機構15使分配噴嘴12自偏光板5及玻璃罩6之間退出。繼而,升降機構17使玻璃罩支持部11下降,使玻璃罩6接近偏光板5而擠壓透明樹脂7,並且輥驅動機構18使層壓輥13下降至玻璃罩6之最接近位置A上。
輥驅動機構18如圖6D、圖7D所示,首先,使第1輥13a下降至玻璃罩6之最接近位置A上,並向玻璃罩6之長邊方向之一端側滾動。藉此,預先於偏光板5塗佈成線狀之透明樹脂7與藉由分配噴嘴12沿最接近位置A注入之透明樹脂7,相應於第1輥13a之滾動,而於偏光板5及玻璃罩6之間朝向長邊方向之一端側成為一體逐步潤濕擴散。
此時,升降機構17以對應於第1輥13a之滾動使玻璃罩6之長邊方向之一端側下降之方式操作玻璃罩支持部11。因此,玻璃罩6在長邊方向之一端側變得平坦,而與偏光板5平行,故不會因第1輥13a而施加負載。
即,注入至最接近位置A且附著於偏光板5及玻璃罩6之兩面的透明樹脂7,伴隨第1輥13a之滾動與預先塗佈於偏光板5之透明樹脂7一體地潤濕擴散,且使玻璃罩6對應第1輥13a之滾動與偏光板5平行,故可在與偏光板5之間不會混入空氣下,逐步使透明樹脂7潤濕擴散。
進而,因透明樹脂7於偏光板5及玻璃罩6之長邊方向以特定間隔塗佈成線狀,故於第1輥13a之滾動方向空氣之通路得以確保,又,因透明樹脂7會隨第1輥13a之滾動而潤濕擴散,故空氣不會被透明樹脂7包圍而會自偏光板5及玻璃罩6間排出。
又,透明樹脂7由於隨第1輥13a之滾動而逐步潤濕擴散,故會於偏光板5及玻璃罩6間以均一之厚度被填充於整個面。即,藉由輥驅動機構18使第1輥13a以固定之高度滾動於玻璃罩6上,並且藉由升降機構17逐步使玻璃罩6與偏光板5平行,藉此可使偏光板5及玻璃罩6間之厚度在整個面為均一。
如圖6E、圖7E所示,繼第1輥13a之滾動之後,輥驅動機構18使第2輥13b下降至玻璃罩6之最接近位置A上,且使其向玻璃罩6之長邊方向之另一端側滾動。藉此,預先於偏光板5塗佈成線狀之透明樹脂7與藉由分配噴嘴12 注入至最接近位置A之透明樹脂7,會相應於第2輥13b之滾動而於偏光板5及玻璃罩6之間逐步朝向長邊方向之另一端側潤濕擴散。
此時,升降機構17係與第1輥13a時同樣地,以對應於第2輥13b之滾動使玻璃罩6之長邊方向之另一端側下降之方式操作玻璃罩支持部11。藉此,隨著第2輥13b之滾動,玻璃罩6之長邊方向之另一端側亦不會混入空氣,且透明樹脂7會以均一之厚度潤濕擴散。
如圖6F、圖7F所示,該等第1、第2輥13a、13b之下降及滾動係連續地進行,如圖6G、圖7G所示,透明樹脂7填充於偏光板5及玻璃罩6間之整個範圍大致同時地結束。其後,藉由對填充於偏光板5及玻璃罩6間之透明樹脂7照射紫外線使其硬化,從而製造板狀接合體2。
根據此種板狀接合體2之製造方法,藉由將透明樹脂7注入至偏光板5及玻璃罩6之最接近位置A,而使透明樹脂7附著於偏光板5及玻璃罩6之兩面,再藉由層壓輥13自該位置展塗透明樹脂7。此時,於本製造方法中,由於係根據層壓輥13之滾動逐步使玻璃罩6之端部向偏光板5側下降,故於透明樹脂7間不會混入氣泡,且根據層壓輥13之滾動逐步展塗透明樹脂7,故即便偏光板5及玻璃罩6大型化,亦可於短時間內進行整個面之填充。
[其他構成]
再者,於上述製造步驟中,玻璃罩6係藉由玻璃罩支持部11而被均等地保持兩端,而設定成使中央部為最低, 但玻璃罩6亦可藉由使兩端之保持高度不同,而於中央部以外之區域設置彎曲頂部,並將該彎曲頂部與偏光板5之間作為最接近位置A,然後進行利用分配噴嘴12之透明樹脂7之注入、及層壓輥13之下降。
又,於上述製造步驟中,預先於偏光板5描繪圖案P,於使玻璃罩6下降後,藉由分配噴嘴12而於最接近位置A描繪近接圖案N,但亦可不預先於偏光板5描繪圖案P,而於使玻璃罩6下降後,藉由分配噴嘴12描繪圖案P及近接圖案N。
又,於上述製造步驟中,藉由玻璃罩支持部11保持玻璃罩6之兩端,從而因本身重量所引起之彎曲而向偏光板5側彎曲,但只要能調整彎曲頂部與偏光板5之距離,則除因本身重量而彎曲以外,亦可藉由玻璃罩支持部11調整玻璃罩6兩端之保持間隔等,藉此可較本身重量時更進一步使其彎曲,或者亦可設為較本身重量時少之彎曲量。
又,於上述製造步驟中,在透明樹脂7填充於偏光板5及玻璃罩6之整個面後進行了紫外線照射,但只要可在沒有混入氣泡下填充於偏光板5及玻璃罩6之整個面且厚度亦控制為均一,則亦可於層壓輥13之滾動中照射紫外線。
又,本發明係使用第1輥13a及第2輥13b作為層壓輥13,使彼此自最接近位置A向相反方向滾動,但除此以外,亦可於使一根層壓輥自最接近位置A向玻璃罩6之一端側滾動後,使滾動方向反轉,而向玻璃罩6之另一端側滾動,藉此於偏光板5及玻璃罩6之整個面展塗透明樹脂7。
又,本發明亦可根據板狀接合體2之形狀或大小等,使用3根以上之層壓輥13。又,本發明亦可視需要使層壓輥13於最接近位置A與玻璃罩6之一端或另一端之間往復驅動。進而,本發明亦可使複數根輥自最接近位置A向玻璃罩6之一端或另一端滾動。
又,本發明只要能使液狀填充劑無氣泡混入地於短時間內潤濕擴散於構成板狀接合體2之一對基板間,則亦可使除輥以外之擠壓手段於玻璃罩6上自最接近位置A至一端或另一端滑動或移動。
1‧‧‧接合裝置
2‧‧‧板狀接合體
5‧‧‧偏光板
6‧‧‧玻璃罩
7‧‧‧透明樹脂
10‧‧‧載置部
11‧‧‧玻璃罩支持部
12‧‧‧分配噴嘴
13‧‧‧層壓輥
13a‧‧‧第1輥
13b‧‧‧第2輥
15‧‧‧噴嘴移動機構
16‧‧‧擠壓機構
17‧‧‧升降機構
18‧‧‧輥驅動機構
20‧‧‧控制部
21‧‧‧加壓機構
22‧‧‧噴出口
圖1係表示偏光板及玻璃罩藉由透明樹脂接合之板狀接合體的剖面圖。
圖2係自一側表示板狀體之接合裝置的側視圖。
圖3係自另一側表示板狀體之接合裝置的側視圖。
圖4係表示分配噴嘴之圖,圖4A為剖面圖,圖4B為平面圖,圖4C為側視圖。
圖5係表示噴出透明樹脂之分配噴嘴的剖面圖。
圖6係表示板狀接合體之製造步驟的側視圖,圖6A表示在偏光板之與玻璃罩之接著面,描繪透明樹脂圖案之步驟,圖6B表示將玻璃罩保持為彎曲頂部與偏光板為特定間隔之步驟,圖6C表示在偏光板及玻璃罩之兩面描繪附著有透明樹脂之近接圖案的步驟,圖6D表示使第1輥下降至玻璃罩之最接近位置上的步驟,圖6E表示使第2輥下降至玻璃罩之最接近位置上的步驟,圖6F表示使第1、第2輥滾 動而將透明樹脂填充於偏光板及玻璃罩間之整個範圍的步驟,圖6G表示透明樹脂填充於偏光板及玻璃罩間之整個範圍結束之狀態。
圖7係表示板狀接合體之製造步驟的立體圖,圖7A表示於偏光板之與玻璃罩之接著面,描繪透明樹脂圖案的步驟,圖7B表示將玻璃罩保持為彎曲頂部與偏光板為特定間隔之步驟,圖7C表示在偏光板及玻璃罩之兩面描繪附著有透明樹脂之近接圖案的步驟,圖7D表示使第1輥下降至玻璃罩之最接近位置上的步驟,圖7E表示使第2輥下降至玻璃罩之最接近位置上的步驟,圖7F表示使第1、第2輥滾動而將透明樹脂填充於偏光板及玻璃罩間之整個範圍的步驟,圖7G表示透明樹脂填充於偏光板及玻璃罩間之整個範圍結束之狀態。
圖8A~圖8D係表示利用反轉方式之基板接合步驟的側視圖。
圖9A~圖9D係表示利用間隙分配方式之基板接合步驟的側視圖。
5‧‧‧偏光板
6‧‧‧玻璃罩
7‧‧‧透明樹脂
12‧‧‧分配噴嘴
13a‧‧‧第1輥
13b‧‧‧第2輥
N‧‧‧近接圖案
P‧‧‧圖案
X‧‧‧箭頭

Claims (13)

  1. 一種板狀接合體之製造方法,其具有:保持步驟,其使第1基板與第2基板之各接著面對向,並使該第2基板之接著面朝該第1基板側彎曲同時保持於該第1基板上;噴出步驟,其將分配噴嘴插入於該第1基板與該第2基板之彎曲頂部之最接近位置,並使液狀填充劑一面自該分配噴嘴噴出一面附著於該第1基板及第2基板;及填充步驟,其藉由將擠壓構件配置於與該最接近位置對應之該第2基板上並於該第2基板上移動,而使該液狀填充劑潤濕擴散於該第1及第2基板間;該第2基板係對應該擠壓構件之移動位置而與該第1基板保持平行。
  2. 如申請專利範圍第1項之板狀接合體之製造方法,其中該擠壓構件為於該第2基板上滾動之層壓輥。
  3. 如申請專利範圍第2項之板狀接合體之製造方法,其中該填充步驟具有:第1填充步驟,其藉由將第1層壓輥配置於與該分配噴嘴噴出該液狀填充劑之位置對應之該第2基板上並向該第2基板之一端側滾動,而使該液狀填充劑向該第1及第2基板之一端側潤濕擴散;及第2填充步驟,其藉由將第2層壓輥繼該第1層壓輥之後配置於與該噴出位置對應之該第2基板上並向該第2基板之另一端側滾動,而使該液狀填充劑向該第1及第2 基板之另一端側潤濕擴散。
  4. 如申請專利範圍第1項至第3項中任一項之板狀接合體之製造方法,其中該第2基板之被保持的端部對應於該擠壓構件之移動而逐步向該第1基板側下降。
  5. 如申請專利範圍第1項至第3項中任一項之板狀接合體之製造方法,其中於該保持步驟中,係藉由保持該第2基板外周緣之至少一部分,而使該第2基板因本身重量發生彎曲。
  6. 如申請專利範圍第1項至第3項中任一項之板狀接合體之製造方法,其中於該保持步驟之前,在該第1基板上於該擠壓構件之移動方向預先將液狀填充劑塗佈成線狀。
  7. 如申請專利範圍第1項至第3項中任一項之板狀接合體之製造方法,其中該第1基板為構成影像顯示面板之顯示面之偏光板;該第2基板為保護該影像顯示面板之表面之玻璃板;該液狀填充劑為將該偏光板與該玻璃板接合之透明接著劑。
  8. 一種板狀體之接合裝置,其具備:載置部,其載置有第1基板;支持部,其保持與該第1基板對向之第2基板之端部,使該第2基板之主面朝該第1基板側彎曲且支持於該第1基板上;分配噴嘴,其插入於由該載置部載置之該第1基板與由該支持部支持之該第2基板之彎曲頂部的最接近位置, 且於該第1基板與該第2基板之間噴出液狀填充劑;及擠壓構件,其被配置於與該最接近位置對應之該第2基板上並於該第2基板上移動,藉此使該液狀填充劑潤濕擴散於該第1及第2基板間;該第2基板係對應該擠壓構件之移動位置而與該第1基板保持平行。
  9. 如申請專利範圍第8項之板狀接合體之接合裝置,其中該擠壓構件為於該第2基板上滾動之層壓輥。
  10. 如申請專利範圍第9項之板狀體之接合裝置,其中該層壓輥具有:第1層壓輥,其被配置於與該最接近位置對應之該第2基板上並向該第2基板之一端側滾動,藉此使該液狀填充劑向該第1及第2基板之一端側潤濕擴散;及第2層壓輥,其繼該第1層壓輥之後被配置於與該最接近位置對應之該第2基板上並向該第2基板之另一端側滾動,藉此使該液狀填充劑向該第1及第2基板之另一端側潤濕擴散。
  11. 如申請專利範圍第8項至第10項中任一項之板狀體之接合裝置,其中該支持部係對應該擠壓構件之移動而使該第2基板之端部向該第1基板側下降。
  12. 如申請專利範圍第8項至第10項中任一項之板狀體之接合裝置,其中該支持部藉由保持該第2基板外周緣之至少一部分而使該第2基板因本身重量發生彎曲。
  13. 一種板狀接合體,其藉由申請專利範圍第1項至第 7項中任一項之板狀接合體之製造方法製得。
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