TW575508B - Optical film laminate - Google Patents

Optical film laminate Download PDF

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Publication number
TW575508B
TW575508B TW90107045A TW90107045A TW575508B TW 575508 B TW575508 B TW 575508B TW 90107045 A TW90107045 A TW 90107045A TW 90107045 A TW90107045 A TW 90107045A TW 575508 B TW575508 B TW 575508B
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Taiwan
Prior art keywords
film
optical film
powder
laminate
layer
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TW90107045A
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English (en)
Inventor
Masayuki Satake
Yasushi Takahashi
Yuji Saiki
Tominari Araki
Tetsuo Kaneko
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Nitto Denko Corp
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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
    • B32B7/00—Layered 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
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073
    • B29D11/00788—Producing optical films
    • 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
    • B32B7/00—Layered 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
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • 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
    • B32B2551/00—Optical elements
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/20—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
    • C09J2301/204—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive coating being discontinuous
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/10—Presence of inorganic materials
    • C09J2400/16—Metal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1075—Prior to assembly of plural laminae from single stock and assembling to each other or to additional lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24372—Particulate matter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature
    • Y10T428/24793—Comprising discontinuous or differential impregnation or bond
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31507—Of polycarbonate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]

Description

575508
本發明係關於一種用於液晶 物之光學薄膜層合體。更為特 適於運送及搬動之光學薄膜層 叙關拮術之斂述 顯不螢幕、觸控板及其類似 定的說，本發明係關於一種 合體。 各種 顯示螢 用’而 黏著層 延遲。 學薄膜 層於光 該預 除之解 層合於 著於不 合於數 然而 在暴露 之邊緣 黏著層 表示）： 光學薄 不單是 ^光學薄膜包括極化薄膜及波長薄膜被使用於液晶 ，及觸控板。該等光學薄膜並非以單—之薄膜被使 疋以層合體，其包含有2或多種光學薄膜利用感壓 使結合為-體，以用於控制或調節光之振動方向或 该等感壓黏著層一般係預先被覆膜於欲被層合之光0 之單或雙側因為在層合時藉覆臈分， 學薄膜之上將導致低生產效率。 七者 =已產生感壓黏於其上之光學薄膜具有一 其他光學薄膜或作為螢幕之透=昼#:”被 欲之部份。有時該光學薄膜亦已；前附 個其他之光學薄嫉。 方已错由感壓黏者層層 ，無論何種情形，該等感壓黏著# 之狀態。因此，會使得運送或= 表面易接觸到運送機器或工作者2日卞感塾黏者層亀 與光學薄膜之邊緣部份分離（、身體’導致感壓· 有時會使已分離於光學薄』欠缺黏著性"
膜之表面(以下以”黏著性污物黏著層站污J 抑制該光學薄膜能無誤的鍵蛀、不)。欠缺黏著性 是w於面板且造成顯示失
575508 五、發明說明（3) 了採用以下之方法。各有一 學薄膜被疊放，然後當被堆 或左及右側彼此擠壓時，將 務塗敷。多餘之粉末以空氣 粉末可大體以最小量均勻黏 。该粉末較佳為其分子直徑 +該光學薄膜並無特別限定 ，、一種波長薄膜、一種橢 涛膜之元件可被使用。 該粉末具有比重d為4. 0或 用以及以空氣吹送除去多餘 、°玄粉末不需被大量黏著使 被覆盖。只要感壓黏著層之 粕末所覆蓋，便足以產生本 為5〜95%，更佳為5〜80%，最 。、有些液晶顯示面板在行動 或更高。若用於該等應用例 氐熔點，有可能在使用中該 ^不欲之部份。因此，該粉 南。 有=，整個光學薄膜層合 個感壓黏著層之2或更多之光 疊之薄膜尚未被最上及最下侧 粉末用例如刷擦或以空氣搶噴 吹送或其他方法吹去。由此， 著於各感壓黏著層之邊緣表面 小於感壓黏著層之厚度。 ，且至少一種擇自一種極化薄 圓形極化薄膜及一種光學補償 更小時，在 之粉末時可 感壓黏著層 邊緣表面之 發明之效果 佳為1 5〜7 5 % 應用上被要 之光學薄膜 顆粒會軟化 末之k點較 體在製造之 步驟，不單 材質在乾燥 學薄膜為— 將其以空氣喷霧施 達兩效率。 之邊緣表面可整個 區域至少有5 %被該 。覆蓋百分比較佳 求能耐熱至1 0 0 °C 層合體其顆粒具有 或熔化並滴落污染 佳為1 0 0 °c或更 赚· 過程中會浸泡在水 是邊緣表面之保護 後可能會污染到不 種極化薄膜，若該 右該粉末溶解於此浸泡 功能喪奂，4> 穴天且被溶解之粉末 欲之部份〇里 刀 再者，有時該光
90107045.ptd 第7頁 ^ /JDKJ6 ^ /JDKJ6 五 發明說明（4) 粉末吸收水份，被 物，比如聚乙烯醇，收之水份會使作為極化劑之有機聚合 。所以，該粉末^ 不利的腫脹，因而改變了其光學性質 該等粉末之例2為f水性在5%或更低。 、 脂酸詞及松香。$ 舌氧化鋅硬知酸鋅、硬脂酸銘、硬 種或更多。其中=夺顆粒性材質可被單獨使用或組合其2 屬硬脂酸鹽類可、、2 Ϊ者為硬脂酸的金屬鹽類。這是因為金 本發明以下將：：士述大部份之要求。 限定於此。 ，考貫施例被更詳細解釋，但本發明絕不 實施例~1
10 0個各帶有—彻β广 用擊打及堆疊製備：δ二著層V寸見方之極化薄膜利 在該堆疊體之將一種硬脂酸辞（d=1.2)之粉末加 氣吹送除去以彳面。然後將多餘之硬脂酸鋅顆粒藉空 k除去以侍到光學薄膜層合體No. 1。 光=薄膜層合體Ν〇· 2及N〇, 3係以與以上相同之方式製
所取Ϊ I硬脂酸鋅各被硬脂酸1呂（d = 1.G)及氧化鋅（d = 5.L
ft所1! f i光學薄膜層合體被評估其邊緣黏性、黏性缺乏 ，、黏者性污物及空氣吹送之適合性， ^ 表1。所用之評估方法如下。 於 欠缺黏著性、獻著性污物 100、個〃層合體（極化薄膜總數1 0,0 0 0 )被分別包裝並以卡 車運达等。之後，包裝被打開且工作者以肉眼檢視該等層
575508
合體並與包裝之前 體中之感壓黏著層 中極化薄膜之表面 物。 之層合體比較以評 有部份喪失者被評 被感壓黏著層玷污 估該等層合體。層合 為欠缺黏著性，而其 者被評為具黏著性污 此 垄..氣吹送j適合性 在施加粉太夕始 # 被量測。；s入雕士错空氣吹送除去多餘顆粒所須之時 而其時間為〗八 ]紐於1刀釦者被砰為滿意（〇）， 表i …、刀名里或更長者被評為不滿意（X)。 尋·
貫施例1中層合體Nc).丨及N〇. 2 A15〇〇c 〇 」入，除了硬脂酸鋅被取代成松香（熔點=90之步驟祐 件到層合體No. 4。 ）。由 所得到之層合體以相同於實施例丨之方法評估 11、黏性缺乏性及黏著性污物，並進一步 一邊緣黏 性。得到之結果示於表2。評估熱 σ其熱耐受 崖生 又|文方法如下。 / 一
575508 五、發明說明（6) --- 人層二肢（各具1 0 0個極化薄膜）被分別施加在玻璃板並置 於0 C_加熱腔室中2 5 〇小時。之後，該等層合體被檢查。 "亥等層5體中未髒污者被評為滿意（〇），而被熔化顆粒玷 污者被評為不滿意（X)。 表2 ............—- ΐ緣黏ί " — 』〇· 1 No. 2 No. 4 非黏性 ~o7Too 非黏性； 非黏性 欠缺黏合體數目 --—____ 〇71 ο 〇 0/100 具有黏著性污物之層合體數目 0/10—0 0/100 0/100 熱耐受性 No, 4 :~---- ~δ 〇 實施例3 貫施例1中層合體Ν〇· 1所使用之硬脂酸鋅其吸水性為 1 · 0 %。相同於實施例1之步驟被引入，除了硬脂酸辞被取 代成硬脂酸鈣（吸水性=3 · 〇 %)及碳酸鉀（吸水性=3 q %)。由 此’產生層合體No· 5及層合體No. 6。 所得到之層合體以相同於實施例1之方法評估其邊緣毒占 性、黏性缺乏性及黏著性污物，並進一步評估其清潔耐受 性。得到之結果示於表3。評估清潔耐受性之方法如下。又 清潔耐夸柯 1 0 0個層合體（極化薄膜總數1 0，0 0 0 )被分別施加在破璃 板’接著浸泡於水中3分鐘，再乾燥。之後，該等層合體 以目視檢查以計算被玷污之層合體數目。層合體中未髒足 污者被評為滿意（〇），其中少於5個被玷污者被評為尚
第10頁
\\312\2d-code\90-06\90107045.ptd 575508 五、發明說明（7) 可（△)，而5個或更多被玷污者被評為不滿意（父） 表3
复！例4 、貫施例1中所得到之層合體Ν〇·丨被以顯微鏡檢視，其方 法為將该層合體之一個邊緣表面之一部份恰落於該顯微鏡 物鏡之下以決定覆蓋百分比，公式（覆蓋百分比）= [(顆粒 f據之面積）/ (感壓黏著層總面積）]χ 1 〇 〇。實施例1中所 得到之層合體Νο·1之覆蓋百分比為1〇 %。層合體Ν 7及8被 :相同於層合體No」之狀態生產，除了覆蓋之體比例藉J 空氣吹送之時間而各被改變為30%及2%。為作比較，層合 體No. 9被以相同於層合體Νο·丨之狀態生產，除了沒有顆粒 被黏著。 ”
所得到之層合體以相同於實施例1之方法評估其邊緣黏 性、黏性缺乏性及黏著性污物。得到之結果示於表4。 参4
No. 1 Π^ΤΤ~ No. 8 No. 9 邊緣黏性 ---- II ............................... ... 非黏性 非黏性 輕微黏 性 黏性 第11頁 90107045.ptd 575508 五、發明說明（8) 欠缺黏著性之層合體數目 0/100 0/100 2/100 5/100 具有黏著性污物之層合體 數目 0/100 0/100 1/100 4/100 如以上所述，本發明之光學薄膜層合體較不易有黏著缺 陷或導致黏著污物且可因此被輕易的運送及搬動。因此， 該層合體可在高產量下被生產。 元件編號說明 1 光學薄膜層 4 2 感壓黏著層 3 感壓黏著層 4 解除片 5 非黏性粉末 .
90107045.ptd 第12頁 575508 圖式簡單說明 圖1係一平面圖，顯示本發明之光學薄膜層合體之一具 體例。 圖2係一剖面圖，顯示本發明之光學薄膜層合體之一具 體例之厚度方向切面。
90107045.ptd 第13頁

Claims (1)

  1. 575508 Γ 案破-90麵45 申請專4i範屢. 1 · 種光 感壓黏著層 高及吸水性 層之邊緣表 之區域含蓋 2.如申請 光學薄膜包 .............一 J 學薄膜層 ，其中， 為5 %或更 面，且該 至少5 %之 專利範圍 含至少一 ium~ 曰 修正 膜 種波長薄膜 薄膜之組群 3.如申請 粉末為硬脂 專利範圍 酸金屬鹽 酴」· 2 ί 1 資一個光學薄膜層及一個 比重d為4或更低、熔點為1 0 0 °C或更 低之非黏性粉末被黏著於該感壓黏著 感壓黏著層之邊緣表面被粉末所覆蓋 邊緣表面面積。 第1項之光學薄膜層合體，其中，該 種元件係擇自一個包含一種極化薄 一種橢圓形極化薄膜及一種光學補償 第1項之光學薄膜層合體，其中，該 之顆粒。
    90107045(替換）-〗.ptc 第14頁
TW90107045A 2000-03-27 2001-03-26 Optical film laminate TW575508B (en)

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Publication number Priority date Publication date Assignee Title
US8385706B2 (en) 2005-01-31 2013-02-26 Osram Opto Semiconductors Gmbh Optical element and method for the production thereof

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JP4208187B2 (ja) 2002-10-28 2009-01-14 日東電工株式会社 粘着型光学フィルム、粘着型光学フィルムの製造方法および画像表示装置
JP4493438B2 (ja) * 2004-08-04 2010-06-30 達也 太田 干渉膜を有するハロゲン電球又は高輝度放電ランプ
GB0425266D0 (en) * 2004-11-16 2004-12-15 Norton Healthcare Ltd Pharmaceutical manufacturing process
JP2012093985A (ja) * 2010-10-27 2012-05-17 Nitto Denko Corp タッチ入力機能を有する表示パネル装置と該表示パネル装置のための光学ユニット、並びにその製造方法
CN107538885B (zh) * 2017-09-25 2023-04-07 深圳市运宝莱光电科技有限公司 一种薄型补偿膜偏光片的贴合装置及其制作工艺

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JPS5513734A (en) * 1978-07-15 1980-01-30 Masamoto Shimizu Anti-blocking agent
US4346189A (en) * 1980-07-14 1982-08-24 Morgan Adhesives Company Agent for forming cleaner cutting pressure sensitive adhesives
JPS5838776A (ja) * 1981-08-31 1983-03-07 Nitto Electric Ind Co Ltd ロ−ル状粘着テ−プの側面構造
JP3875331B2 (ja) * 1996-12-19 2007-01-31 日東電工株式会社 光学部材
JPH11129355A (ja) * 1997-11-04 1999-05-18 Nitto Denko Corp 粘着部材の製造方法
JP3689553B2 (ja) * 1998-03-12 2005-08-31 日東電工株式会社 光学部材の製造方法
JPH11254550A (ja) * 1998-03-12 1999-09-21 Nitto Denko Corp 光学部材
JP2000258628A (ja) * 1999-03-10 2000-09-22 Nitto Denko Corp 光学部材

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8385706B2 (en) 2005-01-31 2013-02-26 Osram Opto Semiconductors Gmbh Optical element and method for the production thereof
US8509583B2 (en) 2005-01-31 2013-08-13 Osram Opto Semiconductors Gmbh Optical element and method for the production thereof

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KR100681101B1 (ko) 2007-02-08
US20010036553A1 (en) 2001-11-01
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JP2001272539A (ja) 2001-10-05
US20040129381A1 (en) 2004-07-08
JP3862924B2 (ja) 2006-12-27

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