TW200521472A - Optical film and production process thereof - Google Patents

Optical film and production process thereof Download PDF

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Publication number
TW200521472A
TW200521472A TW093112430A TW93112430A TW200521472A TW 200521472 A TW200521472 A TW 200521472A TW 093112430 A TW093112430 A TW 093112430A TW 93112430 A TW93112430 A TW 93112430A TW 200521472 A TW200521472 A TW 200521472A
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Taiwan
Prior art keywords
film
light film
light
substrate
image display
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TW093112430A
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Chinese (zh)
Inventor
Koichi Sano
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3M Innovative Properties Co
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/222—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/026—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing of layered or coated substantially flat surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • B29C59/046—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts for layered or coated substantially flat surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/136—Reflex reflectors plural reflecting elements forming part of a unitary body
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • B29C2059/023—Microembossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0083—Reflectors
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • B32B37/025—Transfer laminating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/06—Embossing

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Human Computer Interaction (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Laminated Bodies (AREA)
  • Liquid Crystal (AREA)
  • Position Input By Displaying (AREA)

Abstract

To provide an optical film which is improved in visibility without the adhesive of a fingerprint and the deterioration of the contrast, is capable of resisting a scratch or the like, and is useful particularly for an image display device. The optical film comprises a transparent reflection film on the surface of which a plurality of surface reflection distribution areas each containing at least one microstructure are provided.

Description

200521472 九、發明說明： 【發明所屬之技術領域】 本發明相關於光膜，尤其相關於黏附在輸出入裝置（諸如 觸控面板或圖形面板等）時具有高可見度的光膜。本發明亦 相關於以高準確度輕易製造此一高效能光膜的方法，本發 明亦相關於一影像顯示裝置，其包括此一設置在其影像顯 示表面上的光膜。 【先前技術】 習用電子顯示器包括液晶顯示器（LCD)、el(冷光）顯示 為、電漿顯示器等等，並可用於大型或小型影像顯示裝置， 許多應用利用觸控面板或圖形面板等輸出入裝置配合電子 顯示器。例如，由於近來液晶顯示面板在可見度已改善， 而使觸控面板廣泛用於銀行的ΑΊΓΜ(自動櫃員機），使用atm 枯，銀行客戶可用他/她的手指直接碰觸面板而以問答方式 執行輸入操作。觸控面板亦廣泛用於PDA(個人資料助理 器），PDA例如包括在以下商品名下販售者··夏普公司的 Zaurus ，蘋果電腦公司的”牛頓，，；卡西歐電腦公司的 〇&阳0”；及出11(1听11^的^咖”。使用叩八時，使用 者可輕易使用電子筆碰觸該觸控面板而執行輸入操作，此 卜圖形面板用以指明工業設定中的設備、儀器等等，一 工廠的操作員或使用者可監控一圖形面板上顯示的設備、 儀為等等，並藉由他/她的手指或電子筆直接碰觸該圖形面 板的顯示表面而控制該工廠。 如上述，一觸控面板、圖形面板或其他輸出入裝置的效 92820.doc 200521472 …地依賴該液晶顯示面板的可見度，，准，問題是該液 晶顯示面板的可見度，藉由手指或筆直接碰觸該輸出入裝 置的影像顯示表面（以下稱”觸控輸出入表面”、，，觸控輸入表 面”或”觸控表面"）的結果，·無法維持長期穩定度。藉由使用 者的手指或筆碰觸該觸控輸出入表面而重複地執行多種不 同操作的結果，整個觸控輸出人表面的透明度由於該觸控 輸出入表面上的光反射而減低，並藉此減低該觸控輸出入 表面的可見度。此外，t前述光反射存在#，會將該的周 邊反射至該觸控輸出入表面中，藉此並減低可見度。 傳統上，為防此該觸控輸出入表面的可見度降低，觸控 輸出入表面已具備有凸起或凹下的圖案，例如，（日本未審 查專利申請案（KokaQ第1〇]72377號）已提出一透明膜基板 ‘ ie方法用以製造一觸控面板的碰觸側上設置的透明膜 基板，其中亚使該基板的觸控輸入表面側粗糙化成〇〇5至 〇·8 μηι的中央線平均粗糙度，並在該粗糙表面塗裝一透明 金屬化合物或合成樹脂： 此外，（日本未審查專利申請案（〖从叫第5·123378號）亦 提出諸如透鏡等模製物‘，其目標非改善一觸控面板的可 見度，但可藉由減低光反射而防止眼睛疲勞，配戴效果極 仏。在此扠製物件表面上，形成一透明塗層，該塗層包括 一精細粒子狀無機物質（由至少一種特殊金屬氧化物所組 成）及矽问分子化合物（由至少一種特殊有機矽化合物所 組成）。 【發明内容】 92820.doc 200521472 本發明一概念係一包括透明反射膜的光膜，該反射膜表 面上設置複數個表面反射分佈區域，其各包括至少一微結 構。 該透明反射膜可單獨使用（意即不用一基板支撐），或由 一基板加以支撐，在後者，該光膜較佳包括一透明薄片狀 基板，及在該基板一側上形成的一透明反射膜（本說明書中 亦稱為”反射層”）。 本發明另一概念係一光膜製造方法，其包括藉由轉移在 一透明膜的一側加上複數個表面反射分佈區域而製造一反 射膜的步驟，該等表面反射分佈區域各包括至少—微結構。 在此光膜製造方法中，該反射膜可製成無基板的自支撐 膜的形式，或製成由一透明薄片狀基板所支撐的透明反射 層形式。 此外，可使用一凸飾技術，或藉由在一模子中裝填可固 化或可凝結的塑造材料，並硬化該可固化或可凝結的塑造 材料’而執行該等表面反射分佈區域的轉移。 本發明另一概念係一影像顯示裝置，該裝置包括根據本 發明的光膜，其設置在該影像顯示裝置的影像顯示面板的 衫像顯不表面上。 【實施方式】 如發明背景中所述，雖然使用先前方法可減低該觸控表 面的光反射及該周邊反射至該觸控表面中，但一觸控面板 的觸控表面上的凸起及凹下仍引起一些問題。例如，由於 在該觸控表面隨意形成凸起及凹下的圖案，因此該觸控表 92820.doc 200521472 面上反射的光繞射，該觸控表面 批本品从_ 另化（其減低該觸 =:可見度)。此外’若為觸控面板，使用者以他/她的 心L 板的觸控表面’諸如指印等痕跡會劣化 该表面的可見度。 此外，若為使用者以電子筆觸控的觸控面板，書寫 會成為問題，當該觸控表面平 、 細 木L 丁弘子筆可在該表面滑 動。§如上述在該觸控表面上隨 》成凸起及凹下時，則 有害地衫響該電子筆動作， 化成不良效能及不正確的輸 入，此外，電子筆亦會刮傷該觸控表面。 本發明目的在於解決上述技術問題。 心即 本發明目的是提供·可目# ¥ .見度改善的光膜，該光膜抗 曰Ρ (/、可劣化顯示對比），並能彳 )I月匕抗刮痕。本發明尤其提供可 钻附在觸控面板或圖形面板等輸出A w Μ 1 β 提供該輪出人表面。杨出人裝置的光膜，該光膜 月3目的是提供以高準確度輕易製造根據本發明 的光膜的方法。 本I明另一目的是提供_ ,απ 〜彳冢顯不裝置，其能利用根據 本务明的光膜的前述數個特徵。 下洋'、，田况明中將了解本發明前述目的及其他目的。 如上述’本發明有關於 像顯干梦署 先膜、一光膜製造方法及一影 名义明/ 顯不裝置在其影像顯示表面上黏附根據本 :月的光膜。以下參照至附圖說明本發明數個較佳實施 卜!·隹本發明未侷限於以下說明的數個特定實施例。 、據本I明的光瞑可以_自支撐膜或一基板所支撐的膜 92820.doc 200521472 的形式而提供，圖1及2說明一基板所支撐的光膜範例。圖2 以剖面圖說明圖i中由線看去的光膜1〇，由圖2可輕易 了解，该光膜1 0包括至少一透明薄片狀基板丨及基板丨上形 成的一透明反射層2。此外，光膜10在反射層2的表面上包 括複數個表面反射分佈區域A，在該等面積中各形成一微結 構12(例如形狀像四角錐的稜柱微結構若需要，該等表面 反射分佈區域A中各形成至少二微結構12(附圖中並未顯 示）反射層2上的數個微結構12較佳設置成規律圖案（具有 預设形狀及高度），並分佈成預設密度。 在本發明一光膜中，藉由設置該等形狀、高度及分佈密 度皆加以控制的微結構（較佳為稜柱微結構），而在該透明薄 片狀基板上形成的反射層上設置數個表面反射分佈區域， 在該光膜表面上入射的光藉此並可由該等微結構的表面在 多種I同方向反射，並可防止從該平坦表面強烈鏡反射至 特疋方向。結果，即若如指印等污點黏附在該光膜表面， /污點亦不十为明顯，藉此壓制該顯示器效能的劣化，並 改善可見度。 ·. 本說明書中提到的”微結構”指極細微的表面圖案，肉眼 大體上無法情測其存在，意即，該微結構係一顯微鏡級的 、、’田K構’以視力觀察其任何表面時無法清楚分辨。，，顯微 鏡級"-詞意指夠小尺寸待徵，以致肉眼需要藉助光學儀器 從任何觀察平面觀察以判定其形狀。在W.J.Snnth所著200521472 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a light film, and more particularly to a light film with high visibility when attached to an input / output device (such as a touch panel or a graphic panel). The present invention is also related to a method for easily manufacturing such a high-performance light film with high accuracy, and the present invention is also related to an image display device including the light film disposed on an image display surface thereof. [Prior technology] Conventional electronic displays include liquid crystal displays (LCD), el (cold light) displays, plasma displays, etc., and can be used for large or small image display devices. Many applications use input / output devices such as touch panels or graphic panels. With electronic display. For example, as the visibility of liquid crystal display panels has improved recently, touch panels have been widely used in banks' ATM (Automated Teller Machines). Using atm, bank customers can directly touch the panel with his / her fingers to perform input in a question-and-answer manner. operating. Touch panels are also widely used in PDAs (personal data assistants). PDAs include, for example, the seller under the brand name of Zaurus of Sharp Corporation, "Newton," of Apple Computer, and 0 & Yang of Casio Computer. 0 ”; and 11 (1 listen to 11 ^^ coffee). When using 8:00, users can easily use the electronic pen to touch the touch panel to perform input operations. This graphic panel is used to indicate the industrial settings. Equipment, instruments, etc. An operator or user of a plant can monitor the equipment, instruments, etc. displayed on a graphic panel, and directly touch the display surface of the graphic panel with his / her finger or electronic pen. Control the factory. As mentioned above, the effect of a touch panel, graphic panel or other input / output device depends on the visibility of the LCD panel. The problem is the visibility of the LCD panel. Or the pen directly touches the image display surface of the input / output device (hereinafter referred to as "touch input / output surface", "touch input surface", or "touch surface ")", Long-term stability. As a result of repeatedly performing different operations by touching the touch input / output surface with a user's finger or pen, the transparency of the entire touch output surface is due to light reflection on the touch input / output surface. Reduce, and thereby reduce the visibility of the touch input / output surface. In addition, the aforementioned light reflection exists #, which will reflect the periphery to the touch input / output surface, thereby reducing the visibility. Traditionally, to prevent The visibility of the touch input / output surface is reduced, and the touch input / output surface is already provided with a convex or concave pattern. For example, (Japanese Unexamined Patent Application (KokaQ No. 10) 72377) has proposed a transparent film The substrate 'ie method is used to fabricate a transparent film substrate provided on the touch side of a touch panel, wherein the touch input surface side of the substrate is roughened to a central line average roughness of 0.05 to 0.8 μm, And apply a transparent metal compound or synthetic resin to the rough surface: In addition, (Japanese unexamined patent application (From C. No. 5.123378) also proposes molded objects such as lenses' The goal is not to improve the visibility of a touch panel, but to prevent eye fatigue by reducing light reflections, and the wearing effect is extremely high. A transparent coating is formed on the surface of this fork, and the coating includes a fine Particulate inorganic substance (composed of at least one special metal oxide) and silicon molecular compound (composed of at least one special organic silicon compound). [Summary of the Invention] 92820.doc 200521472 A concept of the present invention includes a transparent reflective film A plurality of surface reflection distribution areas on the surface of the reflective film, each of which includes at least one microstructure. The transparent reflective film can be used alone (that is, not supported by a substrate), or supported by a substrate, in the latter The optical film preferably includes a transparent sheet-like substrate, and a transparent reflective film (also referred to as a "reflective layer" in this specification) formed on one side of the substrate. Another concept of the present invention is a method for manufacturing a light film, which includes the steps of manufacturing a reflection film by transferring a side of a transparent film and adding a plurality of surface reflection distribution regions, each of which includes at least- microstructure. In this optical film manufacturing method, the reflective film may be made in the form of a substrate-free self-supporting film, or in the form of a transparent reflective layer supported by a transparent sheet-like substrate. In addition, the transfer of the surface reflection distribution areas can be performed using a relief technique or by filling a mold with a curable or curable molding material and hardening the curable or curable molding material '. Another concept of the present invention is an image display device including the light film according to the present invention, which is disposed on a shirt image display surface of an image display panel of the image display device. [Embodiment] As described in the background of the invention, although the light reflection of the touch surface and the peripheral reflection into the touch surface can be reduced using the previous method, the protrusions and depressions on the touch surface of a touch panel It still caused some problems. For example, because convex and concave patterns are randomly formed on the touch surface, the light reflected on the surface of the touch watch 92820.doc 200521472 is diffracted, and the touch surface batch is changed from _ (which reduces the Touch =: visibility). In addition, 'if it is a touch panel, the user uses his / her heart L-plate touch surface' marks such as fingerprints will degrade the visibility of the surface. In addition, if the user touches the touch panel with an electronic pen, writing will become a problem. When the touch surface is flat, the fine wood Ding Hongzi pen can slide on the surface. § As mentioned above, when it is raised and recessed on the touch surface, it will harmfully cause the electronic pen to ring, causing bad performance and incorrect input. In addition, the electronic pen will scratch the touch surface. . The present invention aims to solve the above technical problems. The purpose of the present invention is to provide a light film with improved visibility. The light film is resistant to P (/, can deteriorate display contrast), and can be resistant to scratches. In particular, the present invention provides an output A w Μ 1 β that can be drilled and attached to a touch panel or a graphic panel to provide the wheel-out surface. Yang came out with a light film of a device, which aims to provide a method for easily manufacturing a light film according to the present invention with high accuracy. Another object of the present invention is to provide a _, απ ~ 彳 Tsukasa display device, which can utilize the aforementioned features of the light film according to the present invention. Xia Yang, Tian Tianming will understand the foregoing and other objects of the present invention. As described above, the present invention relates to a film of a dream film, a manufacturing method of a light film, and a shadow. A nominal light / display device adheres a light film according to the present invention to its image display surface. The following describes several preferred embodiments of the present invention with reference to the accompanying drawings. The present invention is not limited to the specific embodiments described below. According to the present invention, the light beam can be provided in the form of a self-supporting film or a film supported by a substrate 92820.doc 200521472. Figures 1 and 2 illustrate examples of a light film supported by a substrate. FIG. 2 is a cross-sectional view illustrating the optical film 10 seen from the line in FIG. I. As can be easily understood from FIG. 2, the optical film 10 includes at least one transparent sheet-like substrate 丨 and a transparent reflective layer 2 formed on the substrate 丨. . In addition, the optical film 10 includes a plurality of surface reflection distribution areas A on the surface of the reflective layer 2, and a microstructure 12 is formed in each of these areas (for example, a prismatic microstructure shaped like a quadrangular pyramid, if necessary, the surface reflection distribution In the area A, at least two microstructures 12 (not shown in the drawing) are formed. The plurality of microstructures 12 on the reflective layer 2 are preferably arranged in a regular pattern (having a predetermined shape and height) and distributed in a predetermined density. In a light film of the present invention, a plurality of microstructures (preferably prism microstructures), each of which is controlled in shape, height, and distribution density, are provided, and a plurality of reflective layers formed on the transparent sheet substrate are provided. The surface reflection distribution area, whereby light incident on the surface of the light film can be reflected by the surfaces of the microstructures in multiple I-directions, and can prevent strong specular reflection from the flat surface to the special direction. As a result, if Smudges such as fingerprints are adhered to the surface of the light film, and the stains are not obvious, thereby suppressing the degradation of the display's performance and improving the visibility. · "Microstructure" mentioned in this manual refers to extremely fine The micro-surface pattern cannot be visually detected by the naked eye, which means that the micro-structure is a microscope-grade, 'Tian K Gou', which cannot be clearly distinguished when viewing any surface with visual acuity. ,, microscope-grade "- The word means small enough to be signed, so that the naked eye needs to look at any observation plane with the help of optical instruments to determine its shape. WJSnnth

Modem Optic Engmeenng(現代光學工程），，（*McGraw_ HU1於1966年出版，1〇4至1〇5頁）中發現一標準，其中視敏 92820.doc 200521472 度係”按照可辨識出的最小性質的角度大小所界定及測量 ”。認定正常視㉚度為最小可辨識生質與視網膜上5分 線的角高度相對時，在250 mm(10英寸）的典型工作距離， 此得到此物件0.36 mm(0.0 145英寸）的橫向尺寸。 在本發明的光膜中’可由多種不同材料在不同厚度製成 該透明薄片狀基板’通常，胃薄片狀基板較佳至少具有未 影響可見度、<用度等的厚度，以及考慮到要用以黏附在 -影像顯示裝置的影像顯示表面上，須有黏附卫作夠用的 彈性。此外，若想使此光膜用以黏附在觸控面板等輸出入 裝置上，該光膜需要具有足夠的硬度及耐用度，以忍受手 指或筆所施加的壓力，以μ夠的彈性將該壓力準確地轉 移至該輸出入裝置。 在本發明實作中，數個薄片狀基板較佳包括（但不限於） 數個塑膠膜’由聚對苯二甲酸乙自旨㈣）、聚莕二曱酸二乙 酉旨（ΡΕΝ)、取向聚丙烯、聚碳酸醋、三醋酸酉旨等製成。一ΡΕΤ 膜作為-基板尤其有用，.例如，可使用諸如Te_TM膜、 MELINEXtm膜（由杜邾 A q t \ 士 、 V田杜邦Λ司天津廠公司製造）等聚酯膜作為 -基板’Α等塑膠膜通常用作單層膜，但若需要，可結合 至少兩種此等膜作為一合成膜或疊層膜。 σ 此外’可根據—光膜的層結構、特定應用等而使用多種 不同厚度的薄片狀基板，通常使用約10陣至約的厚 度’較佳約50 μπι至約3〇〇 gm。 H發中’其反射層的微結構可在本發明的目 的及效果圍内作成多種不同形式，較佳為數個棱柱微結 92820.doc 200521472 構（因該等稜柱微結構能在複數個方向分散光以防止強光 刺眼）。一稜柱微結構的非限定範例包括形狀如圖1及2所示 四角錐一角錐、截頭式錐等形式，例如，圖3說明一光膜 10的範例，其中在一薄片狀基板丨上形成一反射層2，在反 射層2的該等表面反射分佈區域A中各形成形狀像截頭式四 $錐的一稜柱微結構。若需要’可藉由省略反射層2，將該 等微結構與下方的薄片狀基板一體成型’或藉由省略一薄 片狀基板，將一反射層建構成一反射膜，其形成無基板的 光膜（自支撐光膜）。 該等微結構可形成多種不同尺寸，例如，假定設置一微 結構的-表面反射分佈區域自高處看去為矩形時，該矩形 一側的長度通常為約10/m至約5〇〇_，較佳約5〇興至約 300 該微結構的高度通常為約1〇μηι至約5〇〇 ，較佳 約50㈣至約(雖然根據該微結構是否截頭可稱微變 動）。 該反射層上設置有諸如數個稜柱微結構等微結構，該反 射層的材料並未限制（取決於可見光透明度的偏好），玻璃、 多種不同的塑膠材料等等可用以形成該反射層，自可行性 觀點來看，使用塑膠材料為有利。 如同上述薄片狀基板，根據該光膜的層結構、其用途等， 而該反射層可由多種不同塑膠材料製成，並形成不同厚 度。合適的塑膠材料包括（但不限於）丙稀酸樹脂、㈣❹旨 :脂、聚脂樹脂、聚氨醋樹脂、冑氧樹脂、聚笨乙烯樹脂 寺寺，及此等樹脂的混合。可考量此等樹脂的黏稍度(有可 92820.doc 200521472 性上有效）、折射等光學特性而選取一示範塑膝材料作 為適當材料’ —PET或類似材料適合作為反射層材料。 當該等微結構極精細且難以形成時，建議由以下說明的 抄本方㈣類似方法來形成該等微結構，在此_情形中， #乂佳由可固化或可凝結樹脂材料的硬化物品來形成該反射 層。意即，該反射層可為該可固化或可凝結樹脂材料形成 如膜，再藉由對該膜施以熱、光或其他能量而加以硬化 的方式所製成㈣。因此該彳固化或可凝結樹脂材料較佳 為可熱固化樹脂材料或一可光學固化樹脂材料，或可熱塑 性樹脂材料。可光學固化（例如可!^^^固化）樹脂材料不需要 又長又大的爐子來形成一反射層，並能在較短時間固化， 因此尤其有用。可光學固化樹脂材料較佳包括可光學固化 的單體及低聚物，尚較佳包括（間位）丙烯酸鹽單體及低聚物 (意即丙烯酸鹽或異丁烯酸鹽單體及低聚物）。 詳細地說’適於形成該反射層的丙烯酸鹽單體包括（但不 限於）聚氨酯丙烯酸鹽、聚酯丙烯酸鹽、聚謎丙稀酸鹽、丙 烯酸胺、丙烯氰、丙烯酸、丙烯酸酯等，適於形成該反射 層的丙烯酸鹽低聚物包括（但不限於）聚氨酯丙烯酸鹽低聚 物、環氧丙烯酸鹽低聚物等。尤其地，聚氨酯丙烯酸鹽及 其低聚物以遠高於所有其他兩烯酸鹽的速度，可固化成有 彈性、筆直的物品，藉此對光膜生產率的改善作出貢獻。 此外，當使用此一丙烤酸鹽單體或低聚物時，可得到一透 光的反射層，此等丙烯酸鹽單體及低聚物可單獨使用，或 可選擇其至少兩種的組合。雖然異丁烯酸鹽單體及低聚物 92820.doc 200521472 亦具有類似等特徵，但以上僅特別說明丙稀酸鹽單體及低 聚物的特徵等。 可固化或可凝結樹脂材料可包括可選擇的添加物，例 如，在該等可固化樹脂材料為可&固化樹脂材料的例子 中光水S曰化起始劑為其合適添加物。例如，可根據可固 化樹脂材料的種類而選擇數個化合物作為合適的光聚醋化 起始劑，數個示範化合物包括含苯氧基乙基丙烯酸鹽、2- 羥基-2-甲基小苯基，垸小_、雙（2,4,6·三甲基苯#苯基 磷化氫-氧化物等。此等光聚酯化起始劑可單獨使用，或其 至少兩種的組合。 根據該光膜的層結構（其用途等，該反射層可以多種不 同厚度用於該薄片狀基板上，該反射層的厚度通常為約5 μπι至約1〇〇〇 μχη，較佳為約1〇 至約1〇〇 μηι。 讜光膜除了該薄片狀基板及反射層外，尚可包括數個可 選擇元件。 圖4根據本發明，以剖面圖說明另一光膜，其藉由在前述 圖2光膜上提供一額外層而得到，圖4所示光膜⑺尚包括反 射層2上所形成的一透明薄保護塗層3,反射層2形成在薄片 狀基板1的一側上。保護塗層3可視需要形成為一硬塗層， 在薄片狀基板1的背面，經由一黏合層4黏附一脫模襯底5。 光膜10可藉由揭掉脫模襯底5而輕易黏附至一觸控面板等。 該保濩塗層以一薄塗層形式形成為該光膜的上層時，該 保濩塗層提供该光膜抗污 >、良好耐用性及良好強度，可 藉由一可選擇塗裝製造方法，由多種不同材料製造該保護 92820.doc 13 200521472 塗層：從防止灰塵等附著的觀點來看，較佳由低黏著化合 物製成。適於製造該保護塗層的低黏著化合物包括（但不限 於)含氟化合物、含矽化合物等，由於含氟化合物對下方反 射層的透明度及附著力優良，並可形成薄塗層，不會損壞 該反射層表面上的微結構，因此含說化合物尤其適合。適 於製造該保護塗層的含氟化合物包括在分子中含有全氣聚 醚群及烷氧基群的化合物，此類含氟化合物為市售的氟矽 烷耦合劑，例如包括由以下公式提供的一氟矽烷耦合劑： 固體：（佔產品的20重量百分比） F-(CF2CF2CF2〇)n-Si(〇Me)3: 80百分莫耳 F-(CF2CF2CF2〇)n-CF2CF3 : 20百分莫耳Modem Optic Engmeenng (Modern Optical Engineering), (* McGraw_HU1 published in 1966, pages 104-105) found a standard in which visual acuity 92820.doc 200521472 degree system "according to the smallest identifiable properties Defined and measured ". Normal visual acuity is considered to be the smallest identifiable biomass relative to the angular height of the 5-point line on the retina at a typical working distance of 250 mm (10 inches). This results in a lateral dimension of 0.36 mm (0.0 145 inches) for this object. In the optical film of the present invention, 'the transparent sheet-like substrate can be made of a variety of different materials in different thicknesses' In general, it is preferable that the stomach sheet-like substrate has at least a thickness that does not affect visibility, < utility, etc. To adhere to the image display surface of the image display device, there must be sufficient elasticity for the adhesive guard to function. In addition, if the optical film is to be used to adhere to an input / output device such as a touch panel, the optical film needs to have sufficient rigidity and durability to endure the pressure exerted by a finger or a pen, and have sufficient elasticity to Pressure is accurately transferred to the input / output device. In the practice of the present invention, the plurality of sheet-like substrates preferably include (but are not limited to) several plastic films (from polyethylene terephthalate), polyethylene diacetate (PEN), orientation Made of polypropylene, polycarbonate, triacetate, etc. A PET film is particularly useful as a substrate. For example, a polyester film such as a Te_TM film, a MELINEXtm film (manufactured by Du 邾 A qt \, V Tian Du Pont Tianjin Division) can be used as a plastic The film is generally used as a single-layer film, but if desired, at least two of these films may be combined as a synthetic film or a laminated film. σ In addition, a plurality of thin-film substrates of different thicknesses can be used depending on the layer structure of the light film, specific applications, etc., and usually a thickness of about 10 arrays to about 300 'is preferred, and about 50 μm to about 300 gm is preferred. The microstructure of the reflective layer in the H hair can be made into many different forms within the scope of the object and effect of the present invention, preferably a plurality of prism microstructures 92820.doc 200521472 (because these prism microstructures can be dispersed in a plurality of directions) Light to prevent glare). Non-limiting examples of a prismatic microstructure include quadrangular pyramids, pyramids, truncated cones, and the like as shown in Figures 1 and 2. For example, Figure 3 illustrates an example of a light film 10 in which a sheet-like substrate is formed. A reflective layer 2 is formed in each of the surface reflection distribution regions A of the reflective layer 2 with a prism microstructure shaped like a truncated four-cone. If necessary, 'the microstructure can be integrally formed with the underlying sheet-like substrate by omitting the reflective layer 2' or by omitting a sheet-like substrate and constructing a reflective layer to form a reflective film, which forms a substrateless light Film (self-supporting light film). These microstructures can be formed in many different sizes. For example, if a microstructured-surface reflection distribution area is set to be a rectangle from a height, the length of one side of the rectangle is usually about 10 / m to about 500_ Preferably, the height of the microstructure is usually about 50 μm to about 500, preferably about 50 μm to about 50 (although it can be said that it varies slightly according to whether the microstructure is truncated). The reflective layer is provided with microstructures such as several prism microstructures. The material of the reflective layer is not limited (depending on the preference of visible light transparency). Glass, a variety of different plastic materials, etc. can be used to form the reflective layer. From a feasibility point of view, the use of plastic materials is advantageous. Like the above-mentioned sheet-like substrate, the reflective layer may be made of a variety of different plastic materials and formed in different thicknesses according to the layer structure of the optical film, its use, and the like. Suitable plastic materials include, but are not limited to, acrylic resins, polyester resins, polyurethane resins, polyurethane resins, epoxy resins, polyethylene resins, and blends of these resins. Considering the optical properties of these resins such as viscosity (available in 92820.doc 200521472), refraction and other optical characteristics, a model knee plastic material is selected as an appropriate material '-PET or similar materials are suitable as the reflective layer material. When the microstructures are extremely fine and difficult to form, it is recommended that the microstructures be formed by a similar method as described below. In this case, # 乂 佳 is made of a hardened article of a curable or curable resin material. This reflective layer is formed. That is, the reflective layer can be formed into a film for the curable or coagulable resin material, and then made of hardened by applying heat, light, or other energy to the film. Therefore, the vulcanizable or curable resin material is preferably a thermosetting resin material or an optically curable resin material, or a thermoplastic resin material. Optically curable (for example, ^^^ curable) resin materials are particularly useful because they do not require a long and large furnace to form a reflective layer and can be cured in a short time. The optically curable resin material preferably includes optically curable monomers and oligomers, and also preferably includes (meta) acrylate monomers and oligomers (meaning acrylate or methacrylate monomers and oligomers). ). In detail, the acrylate monomers suitable for forming the reflective layer include, but are not limited to, polyurethane acrylate, polyester acrylate, polyacrylic acid salt, acrylic amine, acryl cyanide, acrylic acid, acrylate, etc. The acrylate oligomer used to form the reflective layer includes, but is not limited to, a urethane acrylate oligomer, an epoxy acrylate oligomer, and the like. In particular, urethane acrylates and their oligomers can be cured into elastic, straight articles at a speed much faster than all other dienoates, thereby contributing to the improvement of light film productivity. In addition, when the mono-acrylic acid salt monomer or oligomer is used, a light-transmissive reflective layer can be obtained. These acrylate monomers and oligomers can be used alone, or a combination of at least two of them can be selected. . Although methacrylate monomers and oligomers 92820.doc 200521472 also have similar characteristics, the above only specifically describes the characteristics of acrylic monomers and oligomers. The curable or curable resin material may include optional additives. For example, in the case where the curable resin material is a & curable resin material, the photochemical initiator is a suitable additive. For example, depending on the type of curable resin material, several compounds can be selected as suitable photopolyacetation initiators. Several exemplary compounds include phenoxy ethyl acrylate, 2-hydroxy-2-methyl benzene Group, fluorene, bis (2,4,6 · trimethylbenzene # phenyl phosphine-oxide, etc.) These photo-polyesterification initiators can be used alone, or a combination of at least two of them. Depending on the layer structure of the optical film (its use, etc.), the reflective layer may be used on the sheet-like substrate in various thicknesses. The thickness of the reflective layer is usually about 5 μm to about 1000 μxη, preferably about 1 μm. 〇 to about 100μηι. The light-emitting film may include several optional elements in addition to the sheet-like substrate and the reflective layer. FIG. 4 illustrates another light-emitting film in a cross-sectional view according to the present invention. 2 is obtained by providing an additional layer on the optical film. The optical film shown in FIG. 4 further includes a transparent thin protective coating 3 formed on the reflective layer 2, and the reflective layer 2 is formed on one side of the sheet-like substrate 1. The protective coating layer 3 may be formed as a hard coating layer as required. The layer 4 is adhered to a release substrate 5. The light film 10 can be easily adhered to a touch panel, etc. by peeling the release substrate 5. The protective coating is formed as a thin coating of the light film In the upper layer, the protective coating provides the anti-fouling of the light film, good durability and good strength. The protection can be made from a variety of different materials through an optional coating manufacturing method. 92820.doc 13 200521472 Coating: From the viewpoint of preventing adhesion of dust, etc., it is preferably made of a low-adhesion compound. Low-adhesion compounds suitable for manufacturing the protective coating include, but are not limited to, fluorine-containing compounds, silicon-containing compounds, and the like. The underlying reflective layer is excellent in transparency and adhesion, and can form a thin coating layer, which does not damage the microstructure on the surface of the reflective layer, so the compound is particularly suitable. The fluorine-containing compound suitable for making the protective coating is included in the molecule Compounds containing all-air polyether groups and alkoxy groups. Such fluorine-containing compounds are commercially available fluorosilane coupling agents, for example, including a fluorosilane coupling agent provided by the following formula: solid: (accounting for 20 weight of the product) Percentage) F- (CF2CF2CF2〇) n-Si (〇Me) 3: 80th percentile mole F- (CF2CF2CF2〇) n-CF2CF3: 20 mole percent

Me=甲基群 溶劑：（佔產品的80百分重量比） (cf3)2-cfcf2cf2cf3(全氟異己院） 此轉合劑在Daikin的商品名"Optool DSXn下在市面販售。 r 該保護塗層可形成多-不同厚度，考量該等微結構的再 現’較佳儘可能地薄，該保護塗層的厚度通常約〇.丨至約2〇〇 nm，較佳為約〇·5至約100 nm ° 當光膜10包括圖4所示黏合層4時，黏合層4考量其可操縱 性等’較佳以一脫模襯底覆蓋，因該脫模襯底及一黏合層 用以連接該脫模襯底及該薄片狀基板，因此可分別使用可 選擇厚度的一般脫模襯底及黏合層。 一般說來’可由多種不同的基礎材料有利地構成該脫模 相見底’適合製造該脫模襯底的基礎材料包括紙、塑膠材料 92820.doc 14 200521472 (諸如聚乙烯、聚丙烯、聚酷 那水S日、纖維素醋酸鹽、聚乙烯基 化物及聚乙稀叉氣化物等)，及覆蓋有此一塑膠材料(或黏附 有此一塑膠材料)的紙及其他材料。該脫模襯底可照並原本 以 限 狀態使用’較佳可在、时氧垸處理方法或其他方法處理 改良其剝落特性後再❹。該脫模襯底的厚度通常（但不 於）為約25 /xm至約200 μηι.。 此外，該黏合層可由多種不同的附著劑（諸如感壓附著劑 (PSA)寻)製成’對製造該黏合層有用的感壓附著劑包括(但Me = methyl group Solvent: (80% by weight of the product) (cf3) 2-cfcf2cf2cf3 (Perfluoroisocyanate) This transfer agent is sold under the trade name of Daikin " Optool DSXn. r The protective coating can be formed in multiple-different thicknesses, taking into account the reproduction of such microstructures, 'as preferably as thin as possible, the thickness of the protective coating is usually about 0.1 to about 200 nm, preferably about 0. 5 to about 100 nm ° When the light film 10 includes the adhesive layer 4 shown in FIG. 4, the adhesive layer 4 is considered for its maneuverability, etc. 'It is preferably covered with a release substrate because the release substrate and an adhesive The layer is used to connect the release substrate and the sheet substrate, so a general release substrate and an adhesive layer with selectable thicknesses can be used respectively. Generally speaking, 'the mold release bottom can be advantageously formed by a variety of different base materials'. The base materials suitable for manufacturing the mold release substrate include paper, plastic materials 92820.doc 14 200521472 (such as polyethylene, polypropylene, polycool That water, cellulose acetate, polyvinyl chloride, polyethylene gas, etc.), and paper and other materials covered with this plastic material (or adhered to this plastic material). The release substrate can be used as it is in a limited state. It is preferred that the release substrate can be treated with oxygen or other methods to improve its peeling characteristics and then be cured. The thickness of the release substrate is usually (but not less than) about 25 / xm to about 200 μm. In addition, the adhesive layer may be made of a variety of different adhesives, such as pressure sensitive adhesives (PSA), and the pressure sensitive adhesives useful for manufacturing the adhesive layer include (but

不限於)丙婦酸附著劑、黏性橡膠、黏性合成橡膠、乙稀-乙烯基乙酸鹽、石夕氧燒等。 、此-附著劑可在溶劑或水中擴散再加以乾燥(或可選擇 進一步交叉鏈結）後，成為塗佈在該脫模襯底上的一聚合 物。當使用一溶劑或水骨感壓附著劑成分時，需要移除所 有或許多溶劑或水份的乾燥方法以製造該黏合層，該附著 劑可以是熱職附著劑。此外，具低分子重量的附著劑成It is not limited to acetic acid adhesive, viscous rubber, viscous synthetic rubber, vinyl-vinyl acetate, oxoxid, etc. This-adhesive can be diffused in solvent or water and then dried (or optionally further cross-linked) to become a polymer coated on the release substrate. When using a solvent or water-bone pressure-sensitive adhesive component, a drying method is required to remove all or many solvents or water to make the adhesive layer. The adhesive may be a thermal adhesive. In addition, the low molecular weight

分可塗佈在該脫模襯底±，然後由熱、υν*電子光束等能 量輻射加以聚酯化。 可根據許多因素（例如，該附著劑的成分、該光膜的構造 及該脫模襯底的厚度），在大範圍中變化該黏合層的厚度， 通帛，该黏合層的厚度為約1〇/^至約5〇〆^。 圖5祝明一無基板作為支撐的自支撐光膜範例，光膜w 為上述包括支撐（其上施有一反射層）的光膜的一修改例 子，光膜41在其表面上並具有許多微結構42(精細的稜柱微 結構，形狀像截頭式四角錐），其放大圖如圖6所示。光膜 92820.doc -15 - 200521472 41可由光學厚度中的塑膠材料所製成，類似前述薄片狀基 板及反射層的塑膠材料。.光膜41的厚度通常為約1〇 pm至約 1000 ，該等微結構42.的間距（p)通常在約丨6〇 至約254 間變化，其高度通常在約1〇^〇1至15/^11之間變化。 此外，圖5所不光膜41在其背表面具有一黏合層44及脫模 襯底45，可分別由相同於圖4的光膜的黏合層4及脫模襯底5 所用的相同材料及相同厚度，而製成黏合層44及脫模襯底 45 ° 明確地a兒，光膜41可包括厚度5〇/xm的透光pET膜，並具 備有厚度25 /xm由丙烯酸附著劑製成的一黏合層料，以及厚 度35.5 /xm覆蓋有一矽脫堠劑（未顯示）的一聚酯（ρΕτ)脫模 襯底45,該ΡΕΤ膜係一 meunexTM膜。光膜41縱斷面形成 複數個截頭式四角錐微結構42，圖案中如上述具有16〇至 254 /im間的間距變化，以及1〇至15 的深度變化。 將一 PET膜放置在一加熱鋼滾筒（模子）上並藉由一火焰 凸飾技術作出凸飾的方式，可輕易形成該微結構42，該等 截頭式四角錐微結構的高度會因其密度增加（因其間距降 低）而降低。 在光膜41上測得的光學特性為透射性、霧值及透明度， 該光膜的霧值隨著該圖案的密度增加而增加，但未注音到 該透射度及透明度有任何實質變動。 根據本發明的光膜可用於多種不同的影像顯示裝置，通 苇以曝硌讜光膜的反射層側的方式，黏附在各影像顯示穿置 的影像顯示表面上。適用的影像顯示裝置包括（但不限 92820.doc -16 - 200521472 於）LCD裝置、EL顯示裝置 ★ 一 衣直、兒漿顯不裝置等，視需要亦可 將該光膜黏附在影像顯示裝置以外的物品或裝置上。該光膜 例士可適於用作顯不構件，包括繪圖膜、攝影板、廣告板等。 本發明的光膜尤其可利用黏附在該輸出人裝置的觸控表 面的方式’有利地纺?目-i-l , 有觸控面板或繪圖面板等輸出入裝 置的影像顯示裝置配八枯田 広η β + 。使用’原因疋即若以筆或手指碰觸 該光膜的反射層而執 訊仃輸入刼作，該光膜特有的多種不同 特性不會劣化，並可女鱗 J大體上減低或避免該光膜的損壞、污 染等。配備有輸出入裝置的影像顯示裝置包括(但不限於) 觸控面板型汽車導航系統、銀行的自動櫃員機（ATM)，及個 人資料助理器（PDA)等。. 因此’本發明亦相關於-影像顯示裝置，其包括設置在 其影像顯示面板的影像顯示表面上的前述光膜，此外，根 據本發明的影像顯示裝置可有利地實作為多種不同形式，又 車乂佳在其影像顯不面板上具有觸控面板等輸出入裝置，在 忒輸出入裝置上亚具有根據本發明的光膜。當然，根據本 發明的影像顯示裝置未排除未具有觸控面板等輸出入裝置 的影像顯示裝置，諸如手提電視、顯示儀器、手提遊戲機 及汽車導航系統等。 圖7根據本發明，以立體圖說明一pDA，其包括一典型影 像顯不裝置，由圖8(其為沿著圖7的線νπι_νπι看去的剖面 圖）可了解其構造。PDA3G的構造如下··—液晶顯示裝置^ ^納在一外殼36中，一觸控面板31設置在液晶裝置”的影像 …、貝不表面上，及根據本發明的光膜41黏附在觸控面板3丨上。 92820.d〇c 200521472 在所不PDA 30中，光膜41具有圖5及6所說明的結構，光 膜41包括一 ，其係一透光聚酯（PET)膜，厚度 為50 μηι，在其表面上形成數個微結構（截頭式四角錐微結 構）（未顯示）。此外，在光膜41黏附在觸控面板31之前，在 本文使用光膜41的背表面上，經由厚度25μηι的一丙烯酸黏 合層，已黏附有厚度35.5 /xm的一 ΡΕ 丁脫模襯底（如參照至圖 5所說明）。在本發明的實作中，光膜41及其他者的厚度不 應侷限於上述範例，例如該光膜的厚度通常在約1〇至1〇〇 μηι的範圍中，該丙烯酸黏合層約在5s5〇gm的厚度，而該 PET脫模襯底的厚度約在2〇至2〇〇 的範圍中。 在所示PDA 30中，光膜41可輕易地黏附在觸控面板31 上，例如，使用塑膠卡片作為敷抹器時，未發生空氣帶走（氣 泡捕捉）等麻煩，待使用的丙烯酸附著劑具有控制等級的附 著力，俾使泫光膜未同時剝落，更新該光膜時，亦可不留 下任何實質糊狀材料而移除該光膜。此外，在該光膜上可 施加薄的硬塗層，俾在一特定期間增加抗刮傷力。 光膜41可暫時保護該PDA的影像顯示部分，當該光膜由於 灰塵累積及/或刮傷而磨損，則可更換新的光膜，惟，該光膜 在使用時不會剝落，該PDA的使用者可對此光膜有信心。 此外，除了刮傷之外，光膜41亦能保護該PDA的螢幕遠 離空氣中的灰塵及泥土，當使用一電子筆37在該觸控面板 上執行輸入操作時，該筆不會在該觸控面板上滑動，並可 利用穩定性及絕佳書寫品質，輕易地繼續該輸入操作。意 即，根據本發明的光膜因表面上的數個微結構而具有某一 92820.doc -18- 200521472 程度的表面粗糙，藉此具有更像紙的觸感特質。惟，使用 的微複製圖案係、期望依特定需要而定製，俾該保護膜的透 射、霧及清晰以及顯示大體上不致劣，亦大體上不減低 該等感應器在該螢幕上偵測電子筆書寫的靈敏度。 此外，由於光膜41在其表面上具有數個以規律圖案形成 的微結構，因此可藉由使該圖案的尺寸及分佈密度最適化 而有效控制光的反射，並可藉此減低螢幕強光或類似情形。The coating may be coated on the release substrate, and then polyesterified by energy radiation such as heat, vv * electron beam, and the like. The thickness of the adhesive layer can be changed in a wide range according to many factors (for example, the composition of the adhesive, the structure of the optical film, and the thickness of the release substrate). Generally, the thickness of the adhesive layer is about 1 〇 / ^ 至 约 50〇 ^^. Fig. 5 illustrates an example of a self-supporting light film without a substrate as a support. The light film w is a modified example of the above-mentioned light film including a support (a reflection layer is applied thereon). The light film 41 has many micro-films on its surface. Structure 42 (fine prism microstructure, shaped like a truncated quadrangular pyramid), its enlarged view is shown in FIG. 6. Optical film 92820.doc -15-200521472 41 can be made of plastic material in optical thickness, similar to the plastic material of the aforementioned thin substrate and reflective layer. The thickness of the light film 41 is usually about 10 pm to about 1000 Å, and the pitch (p) of the microstructures 42 usually varies from about 60 to about 254, and its height is usually about 10 to 0.001 to 15 / ^ 11. In addition, the light film 41 shown in FIG. 5 has an adhesive layer 44 and a release substrate 45 on its back surface, and can be made of the same material and the same material as the adhesive layer 4 and the release substrate 5 of the light film of FIG. 4, respectively. Thickness, and the adhesive layer 44 and the release substrate 45 ° are made clear. The light film 41 may include a light-transmissive pET film with a thickness of 50 / xm and a thickness of 25 / xm made of an acrylic adhesive. An adhesive layer and a polyester (ρEτ) release substrate 45 covered with a silicon release agent (not shown) with a thickness of 35.5 / xm, and the PET film is a meunexTM film. The longitudinal section of the light film 41 forms a plurality of truncated quadrangular pyramid microstructures 42. As described above, the pattern has a pitch variation between 16 and 254 / im, and a depth variation between 10 and 15. The microstructure 42 can be easily formed by placing a PET film on a heated steel drum (mold) and performing the embossing by a flame embossing technique. The height of the truncated quadrangular pyramid microstructures will be due to its height. Density increases (due to its reduced spacing). The optical characteristics measured on the optical film 41 are transmittance, haze, and transparency. The haze of the optical film increases as the density of the pattern increases, but there is no noticeable change in the transmittance and transparency. The light film according to the present invention can be used in a variety of different image display devices, and the reed is adhered to the image display surface of each image display penetrating means by exposing the reflective layer side of the light film. Applicable image display devices include (but not limited to 92820.doc -16-200521472) LCD devices, EL display devices ★ One-piece clothes, children's milk display devices, etc., if necessary, the light film can be adhered to the image display device Other than on an item or device. The light film can be suitably used as a display member, including a drawing film, a photographic board, an advertising board, and the like. The optical film of the present invention can be used in an advantageous manner by being adhered to the touch surface of the output human device. The image display device with an input / output device such as a touch panel or a drawing panel is equipped with Yakita 広 η β +. Use 'cause', that is, if you touch the reflective layer of the light film with a pen or a finger to perform an input operation, many different characteristics peculiar to the light film will not deteriorate, and the female scale J will generally reduce or avoid the light Membrane damage, pollution, etc. Image display devices equipped with input / output devices include, but are not limited to, touch-panel car navigation systems, bank automated teller machines (ATMs), and personal data assistants (PDAs). Therefore, the present invention is also related to an image display device including the aforementioned light film provided on the image display surface of its image display panel. In addition, the image display device according to the present invention can be advantageously implemented in many different forms. Che Yejia has an input / output device such as a touch panel on its image display panel, and a light film according to the present invention on the input / output device. Of course, the image display device according to the present invention does not exclude image display devices which do not have input / output devices such as a touch panel, such as a portable television, a display device, a portable game machine, and a car navigation system. FIG. 7 illustrates a pDA in a perspective view according to the present invention, which includes a typical image display device, and its structure can be understood from FIG. 8 (which is a cross-sectional view taken along the line νπι_νπι of FIG. 7). The structure of the PDA3G is as follows ...-a liquid crystal display device ^ ^ is housed in a housing 36, a touch panel 31 is provided on the liquid crystal device ", ... on the surface, and the light film 41 according to the present invention is adhered to the touch screen Panel 3 丨. 92820.doc 200521472 In the PDA 30, the light film 41 has the structure illustrated in FIGS. 5 and 6, the light film 41 includes one, which is a light-transmitting polyester (PET) film, and has a thickness It is 50 μηι, and several microstructures (truncated quadrangular pyramid microstructures) are formed on its surface (not shown). In addition, before the light film 41 is adhered to the touch panel 31, the back surface of the light film 41 is used herein On the other hand, through a 25 μηι acrylic adhesive layer, a PEE mold release substrate having a thickness of 35.5 / xm has been attached (as described with reference to FIG. 5). In the implementation of the present invention, the light film 41 and others The thickness of the film should not be limited to the above example. For example, the thickness of the optical film is usually in the range of about 10 to 100 μm, the thickness of the acrylic adhesive layer is about 5s50gm, and the thickness of the PET release substrate is In the range of about 20 to 200. In the PDA 30 shown, the light film 41 may be light Adhere to the touch panel 31, for example, when using a plastic card as an applicator, no troubles such as air carry-off (bubble trapping) occur. The acrylic adhesive to be used has a control level of adhesion, which makes the phosphor film If it is not peeled off at the same time, the light film can be removed without leaving any substantially paste-like material when the light film is renewed. In addition, a thin hard coating can be applied to the light film to increase scratch resistance during a specific period The light film 41 can temporarily protect the image display portion of the PDA, and when the light film is worn due to the accumulation of dust and / or scratches, a new light film can be replaced, but the light film will not peel off when in use. Users of the PDA can have confidence in this light film. In addition to scratching, the light film 41 can also protect the screen of the PDA from dust and dirt in the air. When using an electronic pen 37 on the touch panel When the input operation is performed on the touch panel, the pen does not slide on the touch panel, and the input operation can be easily continued using the stability and excellent writing quality. That is, the light film according to the present invention has a number on the surface. Microstructure A surface roughness of 92820.doc -18- 200521472, which has a more paper-like feel. However, the micro-replicated pattern used is expected to be customized according to specific needs. The transmission, fog and The clarity and display are generally not inferior, and the sensitivity of the sensors to detect electronic pen writing on the screen is not substantially reduced. In addition, since the light film 41 has several microstructures formed in a regular pattern on its surface, Therefore, the light reflection can be effectively controlled by optimizing the size and distribution density of the pattern, and can reduce the screen glare or the like.

根據本發明的光膜可由多種不同方法有利地製造，一特 別有利的製造方法為轉移方法。該轉移方法可以多種不同 方式實施，可連續地製造一長尺寸的光膜，並在下游方法 一個地或分批地製造光膜 0 切成數個個別的光膜；或一個 此外，可藉由使用一凸飾技術，或在一模子中裝填可固 化或可凝結塑造材料再加以硬化的方式，實作該轉移方 法，该模子包括金屬模、薄片狀模等等。The light film according to the present invention can be advantageously manufactured by a variety of different methods, and a particularly advantageous manufacturing method is a transfer method. This transfer method can be implemented in a variety of different ways. A long-length optical film can be manufactured continuously, and the downstream method can be used to manufacture the optical film one by one or in batches. Cut into several individual optical films; or one, in addition, The transfer method is implemented by using a relief technique, or by filling a mold with a curable or coagulable molding material and then hardening the mold. The mold includes a metal mold, a sheet mold, and the like.

本發明-較佳勢施例為製造光膜的方法，該光膜包括一 透月薄片狀基板及开’成在該基板一側上的一透明反射層， 該製造方法包括在形成該薄片狀基板之後，藉由轉移在該 基板的一側上形成一反射層的步驟，該反射層具有複數個 表面反射分佈區域，各區域包括至少一微結構。 根據本發明以轉移方式製造光膜的方法，較佳根據以下 步驟實作： 模子製造步驟： 製造一模子，其包括一支架及一定型層（以下亦稱為"形 式添加層”），該定型層設置在該支架上，在該定型層表面 92820.doc 19 200521472 上並具有複數個微結構複製凹槽的圖案，其形式、高度及 分佈密度對應至該等表面反射分佈區域的微結構。 塑造材料裝填步驟： 在该薄片狀基板與該定型層間放置可固化或可凝結塑造 材料’並在该等微結構複製凹槽中裝填該塑造材料。 光膜製造步驟： 硬化該塑造材料以形成一光膜，該光膜包括該薄片狀基 板及一反射層，在該反射層表面上設置與該薄片狀基板一 體成型耦合的微結構。 光膜移除步驟： 將該光膜從該模子移除。 該薄片狀基板可從一基板捲筒連續供應，或可一個一個 地供應。 該光膜可藉由一分批系統製造，或是藉由許多光膜組成 的大聖光座（〇ptlcai seat)，再切割成數個個別光膜的製造方 式。 月確地忒，可按圖9所示步驟有利地實作上述光膜製造方 法。 百先，準備圖9(A)所示模子20，模子20包括一支架21及 -定型層22’定型層22設置在支架21上，在其表面並具有 數個微結構複製凹槽25的圖案，微結構複製凹槽乃具有的 形式、高度及分佈密度對應至該等表面反射分佈區域的微 結構。例如可根據以下步驟製造模子2〇 : 將一可光學固化樹脂材料黏附至一金屬模（一目標光膜 92820.doc 200521472 的複製品），以形成一可光學固化樹脂材料層，該金屬模具 有一凸出圖案，該圖案具有的形式及尺寸對應至模子2〇的 凹槽圖案； 將一塑膠膜組成的透明支撐附加至該金屬模上，以形成 一 ®層物品，其由該金屬模、該可光學固化樹脂材料層及 該支架所組成； 將光從該疊層物品的支撐側施至該疊層物品，以固化該 可光學固化樹脂材料層；及 將藉由固化該可光學固化樹脂材料層所形成的定型層與 該支架一起從該金屬模移除。 將一透明薄片狀基板1設定在一壓板（未顯示）上，然後將 该彈性模20設置在基板1的一預設位置中，並執行基板工與 模子20間的對準。 接下來’將一豐層捲筒23放在模子20的一末端上，疊層 捲筒23較佳為一橡膠捲筒。 那時，較佳將模子20的該末端固定在基板i上，因可在完 成對準的基板1與模子20間防止移位。 接下來’使5亥模子2〇的自由末端在以支架（未顯示）舉高 而曝露基板1時，向上移至疊層捲筒23，此時，防止模子2〇 上的張力，俾防止模子20起皺褶，並維持模子2〇與基板i 的對準。 之後，在基板1上供應製造一反射層所需的預設量塑膠材 料（可光學固化樹脂），為供應該塑膠材料，例如可使用有管 嘴的糊給料漏斗。 92820.doc 200521472 在實施所述製造方法中，未將塑膠材料12均勻地供應至 整個基板1上’因在稍後說明步驟中叠層捲筒23在模子2〇 上移動時，塑膠材料12可基板丨上均勻地展開，因此可將塑 膠材料12僅供應至基板1上靠近疊層捲筒2 3的部分（如圖 9(A)所示）。在此一情形中，較佳調整該塑膠材料的黏稠 度，以便適於此類展開，該塑膠材料的黏稠度通常約為 20,000 cps或較少。此外，供應該塑膠材料的方法未侷限於 上述等方法，例如可在該基板的整個表面上塗佈該塑膠材 料（未顯示）。 接下來，驅動该旋轉馬達（未顯示卜以預設速度在模子 20上移動疊層捲筒23(如圖9⑷中箭頭所示），當如此移動疊 層捲筒23時，由疊層捲筒23的重量，連續從其一端至另一 端地將壓力施至該模子，該塑膠材料在基板丨與模子2〇間展 開，並將塑膠材料12裝填在模子2〇的凹槽乃中。 此外在所不製造方法中，該模子的數個凹槽作用為空 氣通道’俾使該等凹槽中捕獲的空氣藉由以上施加的壓力 有效地排出外界或該模子四周，結果，在此製造方法中， 即若在大氣壓力下將該塑膠材料裝填在該等凹槽中，亦可 防止該等凹槽中殘留氣泡。 接下來，硬化該塑膠材料，在此步驟中，由於使用可光 學固化，脂作為-反射層形成材料，因此將基板i及模子10 組成的$層物品放人—光學照射裝置（未顯示）中，然後如紫 外光（υ\〇等光經由基板i及模子施至塑膠材料^，而將該 材料固化，藉此得到可光學固化樹脂製成的數個微結構 92820.doc -22- 200521472 1 2 ’最後，當得到的微結構丨2固定黏附在基板1上時，基板 1及模子20從該光學照射裝置取出，然後剝落模子2〇(如圖 9(C)所示）。為簡化緣故，所得到的光膜丨〇圖示成數個微結 構12 —體成型地黏附至薄片狀基板1的狀態，但事實上，光 膜1 0包括一反射層，其由與微結構丨2材料相同的材料製 成。此外，雖然光膜1〇可一捲筒供應的薄片狀基板1或其他 方法連續地製造，但在所示方法中，光膜丨〇係由分批系統 製造。 亦可使用火焰凸飾技術而有利地形成表面上具有數個微 結構的光膜，該火焰凸飾技術習知為微複製技術，其中將 例如由 P E T膜組成的薄片狀基板接觸一加熱捲筒（其具有 對應至該等微結構的凹槽圖案），以軟化該薄片狀基板，並 在其表面上凸出該等微結構的圖案，藉此技術完成一光膜。 圖1 〇示意說明使用一火焰凸飾技術而連續製造圖6所示 光膜4 1的方法，光膜41可利用以下步驟製造：在一加熱凸 飾滾筒51與一加壓橡膠滾筒53之間，以一預設速度導引從 薄片狀基板捲筒40送出的薄片狀基板膜（例如pet膜）。凸飾 滾筒51由鋼製成，並具有一凹槽案52，其對應至待加在光 膜41表面上的微結構圖案42,當該PET膜在一對滾筒間通過 時即軟化，微結構圖案42並轉移至其表面。 範例 以下參,¾至本發明數個範例說明本發明，應注意本發明 未侷限於此等範例。 範例1 92820.doc -23- 200521472 在此範例中，製造圖1及2所示的光膜。 混合100重量百分比的脂族聚氨酯丙烯酸鹽低聚物 (Daicel UBC公司的商品名”Ebecry 1270”）、25重量百分比的 含苯氧基乙基丙烯酸鹽（Kyoeisha化學的商品名，，輕丙烯酸 鹽PO-A)，及1.25重量百分比的2-羥基-2-甲基-1-苯基-丙烷 -1-酮（光-聚酯化起始劑，Ciba專門化學品的商品名 ”DarocUre1173”），以調製微結構形成用可uV固化樹脂。 準備聚丙烯樹脂製成的一薄片狀模，其表面雕刻有對應 至目標稜柱微結構的凹槽圖案。 ® 接下來，將前一步驟製成的可Uv固化樹脂的必需數量塗 佈在預備的模子上，並裝填在該等凹槽中。然後，該模子 璺上用於基板的聚酯（pET)膜，用於此步驟的PET膜為厚度 100 μιη的PET膜（杜邦天津廠的商品名”HpE188，，）。 接下來’在該模子的凹面中裝填可UV固化樹脂的狀態 中，使用東芝電氣歐司士公司的螢光燈，將波長3〇〇至4〇〇 nm的光經由該ΡΕΤ膜施至該可1；¥固化樹脂川秒，而固化該 鲁 可uv固化樹脂並得到反射層。接下來，該ρΕτ膜與該反射 層一起從該模子剝落，並得到如圖1及2所示的目標光膜。 所付到的光膜中，該反射層的厚度約3〇〇 ，在該反射層 表面形成的稜柱微結構（四角錐微結構）具有丨丨〇 的間距 (P)及63 μιη的高度。· 範例2 在此範例中，範例1的光膜的反射層疊層一保護塗層，由 以下λ式所提供含有全氟聚醚群及烷氧基矽烷群的氟矽烷 92820.doc -24- 200521472 耦合劑（商標品"Optool DSX”；Daikm)，用以調製為一保護塗 層的材料。 F-(CF2CF2CF2〇)n-Si(OMe)3 : 80百分莫耳 F-(CF2CF2CF2〇)n-CF2CF3 : 20百分莫耳The preferred embodiment of the present invention is a method for manufacturing a light film, the light film includes a translucent sheet substrate and a transparent reflective layer formed on one side of the substrate, and the manufacturing method includes forming the sheet shape After the substrate, a step of forming a reflective layer on one side of the substrate is transferred. The reflective layer has a plurality of surface reflection distribution regions, and each region includes at least one microstructure. The method for manufacturing a light film in a transfer manner according to the present invention is preferably implemented according to the following steps: Mold manufacturing steps: Manufacturing a mold including a support and a certain type of layer (hereinafter also referred to as " formally added layer "), the The sizing layer is disposed on the support, and has a pattern of a plurality of microstructure replication grooves on the surface of the sizing layer 92820.doc 19 200521472. The form, height, and distribution density correspond to the microstructures of the reflection distribution areas on the surface. Molding material filling step: A curable or coagulable molding material is placed between the sheet-like substrate and the shaping layer, and the molding material is filled in the microstructure replication grooves. Optical film manufacturing steps: The molding material is hardened to form a A light film comprising the sheet-shaped substrate and a reflective layer, and a microstructure integrally formed with the sheet-shaped substrate is formed on the surface of the reflective layer. The step of removing the light film: removing the light film from the mold The sheet substrate can be supplied continuously from a substrate roll, or can be supplied one by one. The optical film can be manufactured by a batch system, or A large holy light seat (〇ptlcai seat) composed of many light films, and then cut into several individual light film manufacturing methods. Indeed, the above-mentioned light film manufacturing method can be advantageously implemented according to the steps shown in Figure 9. Baixian Prepare the mold 20 shown in FIG. 9 (A). The mold 20 includes a support 21 and a setting layer 22 '. The setting layer 22 is disposed on the support 21, and has a plurality of microstructures on its surface to replicate the pattern of the recess 25. The structure replication groove has a microstructure whose form, height, and distribution density correspond to these surface reflection distribution areas. For example, a mold 20 can be manufactured according to the following steps: An optically curable resin material is adhered to a metal mold (a target Light film 92820.doc 200521472) to form an optically curable resin material layer, the metal mold has a protruding pattern, the pattern has a form and size corresponding to the groove pattern of the mold 20; a plastic film The formed transparent support is attached to the metal mold to form a ® layer article, which is composed of the metal mold, the optically curable resin material layer, and the bracket; A support is applied to the laminated article to cure the optically curable resin material layer; and a styling layer formed by curing the optically curable resin material layer is removed from the metal mold together with the bracket. A transparent The sheet-like substrate 1 is set on a pressing plate (not shown), and then the elastic mold 20 is set in a preset position of the substrate 1 and the alignment between the substrate worker and the mold 20 is performed. Next, 'the one layer The roll 23 is placed on one end of the mold 20, and the laminated roll 23 is preferably a rubber roll. At that time, it is preferable to fix the end of the mold 20 on the substrate i, because the aligned substrate can be completed. Prevent displacement between 1 and the mold 20. Next, when the free end of the mold 5 is lifted with a stand (not shown) and the substrate 1 is exposed, it is moved upward to the lamination roll 23, and at this time, the mold is prevented The tension on 20 prevents the mold 20 from wrinkling and maintains the alignment of the mold 20 and the substrate i. After that, a predetermined amount of plastic material (optically curable resin) required for manufacturing a reflective layer is supplied on the substrate 1. To supply the plastic material, for example, a paste feed funnel with a nozzle can be used. 92820.doc 200521472 In the implementation of the manufacturing method, the plastic material 12 is not uniformly supplied to the entire substrate 1 'because when the lamination roll 23 is moved on the mold 20 in a later-described step, the plastic material 12 may be The substrate 丨 is evenly spread, so the plastic material 12 can be supplied only to the portion of the substrate 1 near the laminated roll 23 (as shown in FIG. 9 (A)). In this case, it is preferable to adjust the viscosity of the plastic material to be suitable for such deployment, and the viscosity of the plastic material is usually about 20,000 cps or less. In addition, the method of supplying the plastic material is not limited to the methods described above, for example, the entire surface of the substrate may be coated with the plastic material (not shown). Next, the rotary motor is driven (not shown) to move the lamination roll 23 on the mold 20 at a preset speed (as shown by the arrow in FIG. 9). When the lamination roll 23 is moved in this way, the lamination roll 23 The weight of 23 is continuously applied to the mold from one end to the other, and the plastic material is unfolded between the substrate 丨 and the mold 20, and the plastic material 12 is filled in the groove of the mold 20. In addition, In the manufacturing method, several grooves of the mold function as air channels, so that the air trapped in the grooves is effectively discharged from the outside or around the mold by the pressure applied above. As a result, in this manufacturing method That is, if the plastic material is filled in the grooves under atmospheric pressure, it is also possible to prevent air bubbles remaining in the grooves. Next, the plastic material is hardened. In this step, due to the use of optically curable, As the -reflection layer forming material, the $ -layer article composed of the substrate i and the mold 10 is put into an optical irradiation device (not shown), and then light such as ultraviolet light (υ \ 〇, etc.) is applied to the plastic material through the substrate i and the mold. ^, While The material is cured, thereby obtaining several microstructures made of optically curable resin. 92820.doc -22- 200521472 1 2 'Finally, when the obtained microstructures 丨 2 are fixedly adhered to the substrate 1, the substrate 1 and the mold 20 Take out from this optical irradiation device, and then peel off the mold 20 (as shown in Fig. 9 (C)). For the sake of simplicity, the obtained light film is illustrated as a number of microstructures 12 which are integrally adhered to the sheet-like substrate. 1 state, but in fact, the light film 10 includes a reflective layer, which is made of the same material as the microstructure 2 material. In addition, although the light film 10 can be a sheet-like substrate 1 supplied on a roll, or other The method is continuously manufactured, but in the method shown, the light film is manufactured by a batch system. It is also possible to use flame relief technology to advantageously form a light film with several microstructures on the surface, which flame relief technology It is known as a micro-replication technique, in which a sheet-like substrate composed of, for example, a PET film is contacted with a heating roll (which has a groove pattern corresponding to the microstructures) to soften the sheet-like substrate and place it on the surface Figures highlighting these microstructures This technique is used to complete a light film. Fig. 10 schematically illustrates a method for continuously manufacturing the light film 41 shown in Fig. 6 using a flame embossing technique. The light film 41 can be manufactured by the following steps: a heated embossing roller Between 51 and a pressurized rubber roller 53, a sheet-like substrate film (such as a pet film) fed from the sheet-like substrate roll 40 is guided at a preset speed. The convex roller 51 is made of steel and has a concave The groove 52 corresponds to the microstructure pattern 42 to be added on the surface of the light film 41, and when the PET film passes between a pair of rollers, it softens, and the microstructure pattern 42 is transferred to the surface. For example, see below, ¾ Several examples of the present invention illustrate the present invention, and it should be noted that the present invention is not limited to these examples. Example 1 92820.doc -23- 200521472 In this example, the optical films shown in FIGS. 1 and 2 are manufactured. 100% by weight of an aliphatic urethane acrylate oligomer (Daicel UBC's trade name "Ebecry 1270") and 25% by weight of a phenoxy ethyl acrylate (Kyoeisha Chemical's trade name, light acrylate PO) -A), and 1.25% by weight of 2-hydroxy-2-methyl-1-phenyl-propane-1-one (photo-polyesterification initiator, Ciba specialty chemical trade name "DarocUre1173"), UV curable resin for modulation microstructure formation. A sheet-shaped mold made of polypropylene resin was prepared, and its surface was engraved with a groove pattern corresponding to the target prism microstructure. ® Next, the necessary amount of the UV-curable resin made in the previous step is spread on the prepared molds and filled in the grooves. Then, a polyester (pET) film for the substrate is placed on the mold, and the PET film used in this step is a 100 μm-thick PET film (trade name “HpE188,” of DuPont Tianjin Factory). Next, 'in the mold In the state where the UV-curable resin is filled in the concave surface, a fluorescent lamp of Toshiba Electric Oushi Co., Ltd. is used to apply light having a wavelength of 300 to 400 nm to the CO 1 through the PET film; Second, the Luco UV-curable resin is cured and a reflective layer is obtained. Next, the pEτ film is peeled from the mold together with the reflective layer, and a target light film as shown in FIGS. 1 and 2 is obtained. In the film, the thickness of the reflective layer is about 300. The prism microstructure (quadrilateral microstructure) formed on the surface of the reflective layer has a pitch (P) and a height of 63 μm. Example 2 In this example In Example 1, the reflective lamination layer of a light film of Example 1 is a protective coating. A fluorosilane containing a perfluoropolyether group and an alkoxysilane group is provided by the following λ formula. 92820.doc -24- 200521472 Coupling agent (trademark & quot Optool DSX "; Daikm) for modulation into a protective coating Material. F- (CF2CF2CF2〇) n-Si (OMe) 3: 80 percent moles F- (CF2CF2CF2〇) n-CF2CF3: 20 percent moles

Me=甲基群 20重量百分比的矽烷耦合劑以8〇重要百分比的氟劑氫氟 乙醚（3M的商品名”HFE-71〇〇”）稀釋，以調製塗裝溶液。接 下來，範例1的光膜浸泡在得到的塗裝溶液中，而在該光膜 的反射層側形成由矽烷耦合劑製成的保護塗層。該保護塗 層的厚度約0 · 1 μχη，該反射層上的稜柱微結構全由該保護塗 層覆蓋住。 範例3(評估測試） 在此範例中，按照（1)可見度、（2)反射程度及（3)擦去指印 的容易度而評估範例2的光膜特性，此外，為比較該光膜， 準備市售舖蓆式聚酯（ΡΕΤ)膜（厚度125 μηι , Teijin的商品名 ,fTetron™M) 〇 (1)可見度 在市售PDA的影像顯示表面上黏附一光膜（新穎膜）及 PET膜（對照膜）後，以一手指重複磨擦該等膜的個別表 面俾使數個指印（皮脂）污點留在該等表面上。 接下來，打開該PDA電源，然後在品質上評估影像顯示 間的可見度，在該新穎膜的例子中，入射在該新.穎膜表面 上的光由一些稜柱微結構的表面在多種不同方向中反射， 藉此在該新穎膜表面上添加的指印等污點成為難以看出。 92820.doc 200521472 思即，在該新穎膜的例子 污點引起的顯示效能減低 在該對照膜的例子中，指 服。 中，該等稜柱微結構可壓制該等 ，而藉此改善可見度。另一方面， 印等污點明顯可見，其導致不舒 (2)反射測試 如在該可見度測試的例子中，在一市售pda的影像顯示 表面上黏附一光膜（新穎膜）及一 PET膜（對照膜）。 接下來，在該房間中直接將該PDA放置在該營光下方， 距離該燈約2"，並從—傾斜方向以肉眼觀察該螢光在該光 膜中的反射程度。在該新穎膜❹丨子巾，在該㈣貞膜表面 上的入射光由4等稜柱微結構的表面在多種不同方向中反 射，藉此可防止該螢光在該新穎膜中的反射。意即，在該 新顆膜的例子中，該箄赫知辦纟士姐 寺^柱楗、，Ό構可防止物件在該膜四周 的反射導致可見度減低。另一十；» _ 馮低另方面，在該對照膜的例子中， 該螢光在該膜中的反射清晰可見。 (3)擦去一指印的容易度測試 如同在可見度測試的例子’將一光膜(新穎膜)及一 PM膜 (對照膜)黏附在一市售PDA的影像顯示表面上，在此測試 中’亦在該PDA上黏附無範例鴻護臈的_新穎膜，以及上 面已根據實施例2的程序形成約〇1 _厚度保護塗層的一 對照膜。 接下來，黏附在該PDA上總共四種樣本膜的個別表面以 -手指重複磨擦’俾使該等表面上有指印(皮脂)污點，以毛 巾擦去個別的指印污點’並在品質上評估擦去指印的容易 92820.doc -26- 200521472 %度。通常在該新穎膜上及具有矽烷耦合劑製成的保護冷 層的對照膜上可見到完全擦去指印污點。 < 接下來，為以數據評估擦去指印的容易度，按照接觸角 測里该等樣本膜的個別表面能量，根據JIS_R_3257要求的方 法，使用0·05 μΐ的水，利用一接觸角量器（商品名：Me = methyl group 20% by weight of the silane coupling agent was diluted with 80% of the fluorine agent hydrofluoroether (3M trade name “HFE-71〇”) to prepare a coating solution. Next, the optical film of Example 1 was immersed in the obtained coating solution, and a protective coating made of a silane coupling agent was formed on the reflective layer side of the optical film. The thickness of the protective coating is about 0 · 1 μχη, and the prism microstructures on the reflective layer are completely covered by the protective coating. Example 3 (evaluation test) In this example, the optical film characteristics of Example 2 were evaluated according to (1) visibility, (2) degree of reflection, and (3) ease of removing fingerprints. In addition, in order to compare the optical film, prepare Commercially available polyester (PET) film (thickness 125 μm, trade name of Teijin, fTetron ™ M) 〇 (1) Visibility A light film (novel film) and a PET film are adhered to the image display surface of a commercially available PDA (Control film), repeatedly rub the individual surfaces of these films with one finger to keep several fingerprints (sebum) stains on these surfaces. Next, turn on the PDA, and then evaluate the visibility between the image displays in terms of quality. In the example of the novel film, the light incident on the surface of the new film is made by the surface of some prism microstructures in many different directions. The reflection makes it difficult to see stains such as fingerprints on the surface of the novel film. 92820.doc 200521472 That is, in the example of the novel film, the reduction in display efficiency caused by stains is shown in the example of the control film. In this case, the prismatic microstructures can suppress these and thereby improve visibility. On the other hand, stains such as printing are clearly visible, which leads to discomfort. (2) Reflection test. In the example of the visibility test, a light film (novel film) and a PET film are adhered to a commercially available pda image display surface. (Control film). Next, directly place the PDA under the camp light in the room, about 2 "from the lamp, and observe the degree of reflection of the fluorescent light in the light film from the oblique direction with the naked eye. In the novel film, the incident light on the surface of the film is reflected by the surface of a prismatic microstructure such as 4 in many different directions, thereby preventing reflection of the fluorescent light in the novel film. This means that, in the case of the new film, the prefecture knows how to prevent the reflection of objects around the film from reducing the visibility. Another ten; »_ Feng Low On the other hand, in the case of the control film, the reflection of the fluorescent light in the film is clearly visible. (3) The test for the ease of wiping off a fingerprint is like the example of the visibility test. 'A light film (novel film) and a PM film (control film) were adhered to the image display surface of a commercially available PDA. In this test, 'Also attached to the PDA is a novel film without a sample of Humori, and a control film with a protective coating having a thickness of about 0.01 mm in accordance with the procedure of Example 2 above. Next, the individual surfaces of a total of four sample films adhered to the PDA were rubbed repeatedly with 'fingers' so that there are fingerprints (sebum) stains on these surfaces, and individual fingerprints stains were wiped off with a towel' and evaluated for quality. Easy to remove fingerprints 92820.doc -26- 200521472% degrees. Fingerprint stains are usually completely wiped off on this novel film and on a control film with a protective cold layer made of a silane coupling agent. < Next, to evaluate the ease of erasing fingerprints based on the data, according to the individual surface energy of the sample films in the contact angle measurement, according to the method required by JIS_R_3257, use 0. 05 μΐ of water and use a contact angle meter (Product name:

Kaimen Kagaku 的"CONTACT ANGLE METER(接觸角量 杰）’’）測量該等接觸角（度），而得到以下的測量結果： 樣本膜 無保護膜 有保護膜 光膜 105.4° 124.6° (新穎膜） PET膜 70.4° 112.4。 (對照膜） 由以上測量結果可了解.，若根據本發明的光膜具有一保 4塗層，則可改善防水性及防油性，亦可有效移除指印等 污點。 如以上詳細說明，本發明提供一光膜，其無指印黏附及 對比劣化而改善可見度，此光膜能抗刮痕或類似情況，並 防止灰塵黏附或類似情況，即若灰塵或類似物質已黏附此 光膜，亦可輕易移除該灰塵或類似物質。由於根據本發明 的光膜具有此韻特性，可有利地應用在多種不同的影像顯 不名置，尤其黏附在觸控面板及圖形面板等輸出入裝置 上’可較有利地應用在此等裝置。 卜本發明提供以高準確度輕易製造根據本發明的光 膜的方法。 92820.doc -27- 200521472 其利用根據本發明 此外’本發明提供一影像顯示裝置 的光膜的優良特性。 【圖式簡單說明】 圖1根據本發明，以正視圖說明光膜的—較佳實施例 圖2說明圖1中的光膜沿著線11-11看去的剖面圖· 圖3根據本發明 圖4根據本發明 圖5根據本發明 以剖面圖說明光膜的另—較佳實施例.； 以剖面圖說明光膜的另—較佳實施例； 以剖面圖說明光膜的另—較佳實施例； 圖6以局部放大圖說明圖5所示光膜； 圖7係-PDA立體圖，言亥PDA上黏附根據本發明的光膜； 圖8說明圖7中的PDA沿著線VIII_VIII看去的剖面圖； 圖9根據本發明，以剖面圖依序說明製造光膜的一較佳方 法；及 圖10根據本發明 光膜的另· 較佳方 法 【主要元件符號說明】 1 基板 2 反射層 3 保護塗層 4，44 黏合層 5, 45 脫模襯底 10, 41 光膜 12, 42 微結構 20 模子 92820.doc -28- 200521472 21 支撐 22 定型層 23 疊層捲筒 25, 52 凹槽 30 個人資料助理器（PDA) 31 觸控面板 35 液晶顯示裝置 36 機殼 37 電子筆 40 薄片狀基板捲筒 51 凸飾滾筒 53 加壓橡膠滾筒 92820.doc - 29 -Kaimen Kagaku's "CONTACT ANGLE METER" measures these contact angles (degrees) and obtains the following measurement results: Sample film without protective film with protective film light film 105.4 ° 124.6 ° (novel film ) PET film 70.4 ° 112.4. (Control film) From the above measurement results, it can be understood that if the light film according to the present invention has a protective coating, water resistance and oil resistance can be improved, and stains such as fingerprints can also be effectively removed. As described in detail above, the present invention provides a light film, which has no fingerprint adhesion and contrast degradation to improve visibility. This light film can resist scratches or the like, and prevent dust or the like, that is, if dust or the like has adhered The light film can also easily remove the dust or the like. Because the light film according to the present invention has such a rhyme characteristic, it can be advantageously applied to a variety of different image display devices, and particularly adhered to input / output devices such as touch panels and graphic panels. 'It can be more advantageously applied to these devices. . The present invention provides a method for easily manufacturing a light film according to the present invention with high accuracy. 92820.doc -27- 200521472 which makes use of the present invention. In addition, the present invention provides excellent characteristics of a light film of an image display device. [Brief description of the drawings] FIG. 1 illustrates a light film according to the present invention in a front view—a preferred embodiment. FIG. 2 illustrates a cross-sectional view of the light film in FIG. 1 taken along line 11-11. Fig. 4 illustrates another preferred embodiment of a light film according to the present invention in accordance with the present invention. Fig. 5 illustrates another preferred embodiment of a light film in a sectional view according to the present invention. Fig. 6 is a partially enlarged view illustrating the optical film shown in Fig. 5; Fig. 7 is a perspective view of a PDA with a light film according to the present invention adhered to the PDA; Fig. 8 illustrates the PDA in Fig. 7 viewed along line VIII_VIII Fig. 9 illustrates a preferred method of manufacturing a light film in order according to the present invention in a sectional view; and Fig. 10 illustrates another preferred method of a light film according to the present invention. [Description of main component symbols] 1 Substrate 2 Reflective layer 3 Protective coating 4, 44 Adhesive layer 5, 45 Release substrate 10, 41 Light film 12, 42 Microstructure 20 Mold 92820.doc -28- 200521472 21 Support 22 Molding layer 23 Laminated reel 25, 52 Groove 30 Personal Information Assistant (PDA) 31 Touch Panel 35 LCD Device 36 Chassis 37 Electronic pen 40 Sheet substrate roll 51 Convex roller 53 Pressed rubber roller 92820.doc-29-

Claims (1)

200521472 十、申請專利範圍： 1 · 一種光膜’包括一透明反射膜，其表面上設置複數個表 面反射分佈區域，各區域包含至少一微結構。 2.如申請專利範圍第丨項之光膜，包括一透明薄片狀基板及 一透明反射層，其形成在該基板之一側上，其中該透明 反射層即該反射膜，在該反射膜表面設置複數個表面反 射分佈區域。 ·· *— . 3，如申請專利範圍第1項之光膜，其中該等微結構係數個稜 柱微結構。 4.如申請專利範圍第丨項之光膜，其中該等微結構係以規律 圖案位於該反射膜上，具有預設形狀及高度，並分佈成 預設密度。 5·如申請專利範圍第丨項之光膜，其中該反射膜由一塑膠材 料製成。 6·如申請專利範圍第丨項之光膜，其中在該反射膜上形成一 保護塗層。 7·如申請專利範圍第丨項之光膜，以曝露該光膜之反射膜側 之方式而黏附在一影像顯示裝置之影像顯示表面。 8·如申請專利範圍第7項之光膜，當利用筆或手指碰觸該光 膜之反射膜側時，可經由該光膜直接輸入至該影像顯示 裝置之輸出入裝置。 9. 一種製造光膜之方法，其包括製造一反射膜之步驟，該 步驟藉由轉移將複數個表面反射分佈區域加至一透明膜 之一側’各该區域包含至少一微結構。 92820.doc 200521472 ίο. 11. 12. 13. 14. 15. 士申1利範圍第9項之方法，其中該反射膜以-透明反射 、矿成°亥透明反射層由一透明薄片狀基板所支撐。 如申’專利範圍第9項之方法，纟中藉由使用一凸飾技術 而執饤該等表面反射分佈區域之轉移。 口申月專利圍第9項之方法，纟中藉由在—模子中裝填 可固化或可凝結之塑造材料，並硬化該可固化或可凝結 ^材料而執行該等表面反射分佈區域之轉移。 如申請專利範圍第10項之方法，包括以下步驟： 準備杈子，該模子包括一支架及一定型層，該定型 層α置在忒支条上，在其表面上並具有複數個微結構複 製凹槽之圖案’該圖案具有之形式、高度及分佈密度對 應至该等表面反射分佈區域之微結構； 在一薄片狀基板與該定型層之間放置可固化或可凝結 之塑造材料，用以將該塑造材料裝填在該微結構複製凹 槽中； 硬化該塑造材料以形成一光膜，該光膜包括該薄片狀 基板及一反射層，在該反射層表面設置數個與該薄片狀 基板一體成型耦合之微結構；及 將該光膜從該模子移除。 一種影像顯示裝置，其包括如申請專利範圍第1項之光 膜’该光膜設置在該影像顯示裝置之影像顯示面板之影 像顯示表面上。 如申請專利範圍第14項之影像顯示裝置，其中該影像顯 示面板在該光膜下方尚包括一觸控面板。 92820.doc200521472 10. Scope of patent application: 1. A light film 'includes a transparent reflective film, and a plurality of surface reflection distribution areas are arranged on the surface, and each area includes at least one microstructure. 2. The light film according to item 丨 of the patent application scope includes a transparent sheet-like substrate and a transparent reflective layer formed on one side of the substrate, wherein the transparent reflective layer is the reflective film on the surface of the reflective film Set a plurality of surface reflection distribution areas. ·· * —3. For example, the light film of the first patent application scope, wherein the microstructure coefficients are prism microstructures. 4. The light film according to item 丨 of the patent application scope, wherein the microstructures are located on the reflective film in a regular pattern, have a predetermined shape and height, and are distributed in a predetermined density. 5. The light film according to the scope of the patent application, wherein the reflection film is made of a plastic material. 6. The light film according to the first item of the patent application, wherein a protective coating is formed on the reflective film. 7. If the light film according to item 丨 of the patent application scope is adhered to an image display surface of an image display device by exposing the reflective film side of the light film. 8. If the light film of item 7 of the patent application scope is used, when a pen or finger is used to touch the reflective film side of the light film, the light film can be directly input to the input / output device of the image display device through the light film. 9. A method of manufacturing a light film, comprising a step of manufacturing a reflective film, the step of adding a plurality of surface reflection distribution areas to one side of a transparent film by transfer ', each of said areas comprising at least one microstructure. 92820.doc 200521472 ίο 11. 12. 13. 14. 15. The method of item 9 in the scope of Shishen Yili, wherein the reflective film is transparently reflected, mineralized, and the transparent reflective layer is formed by a transparent sheet substrate support. As claimed in the method of the 'Patent No. 9', the transfer of these surface reflection distribution areas is carried out by using a convex technique. The method of No. 9 in the Shenyue patent involves the transfer of these surface reflection distribution areas by filling a mold with a curable or curable molding material and hardening the curable or curable material. For example, the method of claim 10 includes the following steps: preparing a branch, the mold includes a support and a certain layer, the setting layer α is placed on the stilt, and has a plurality of microstructure replicas on its surface The pattern of the grooves' The pattern has a form, height, and distribution density corresponding to the microstructures of the surface reflection distribution areas; a curable or curable molding material is placed between a sheet-like substrate and the shaping layer for The molding material is filled in the microstructure replication groove; the molding material is hardened to form a light film, the light film includes the sheet-shaped substrate and a reflective layer, and a plurality of the sheet-shaped substrate are disposed on the surface of the reflective layer. The coupled microstructure is integrally formed; and the optical film is removed from the mold. An image display device includes the light film of item 1 of the patent application scope, and the light film is disposed on an image display surface of an image display panel of the image display device. For example, the image display device under the scope of application for patent No. 14, wherein the image display panel further includes a touch panel under the light film. 92820.doc
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