TW201006670A - Laminate for inhibiting reflective image wobble and flatpanel display - Google Patents

Laminate for inhibiting reflective image wobble and flatpanel display Download PDF

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Publication number
TW201006670A
TW201006670A TW098126298A TW98126298A TW201006670A TW 201006670 A TW201006670 A TW 201006670A TW 098126298 A TW098126298 A TW 098126298A TW 98126298 A TW98126298 A TW 98126298A TW 201006670 A TW201006670 A TW 201006670A
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Taiwan
Prior art keywords
laminate
flat panel
panel display
thickness
resin film
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TW098126298A
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Chinese (zh)
Inventor
Hideki Murakami
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Nissha Printing
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/412Transparent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00Electrical equipment
    • B32B2457/20Displays, e.g. liquid crystal displays, plasma displays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0266Details of the structure or mounting of specific components for a display module assembly

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  • Laminated Bodies (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

This invention provides a laminate having an additional function of adhering to film without changing the thickness of the film, and having ability to inhibit reflective image wobbling without affecting transparency. The laminate (1) comprises a resin film (13) that adheres to the inside surface (16) of a transparent substrate (11) via an adhesive layer (12), wherein the transparent substrate (11) has a visible side as surface (17). The thickness of the adhesive layer is 100μm to 200 μm. Further, a flatpanel display device (20) using said laminate as covering member is also provided.

Description

201006670 六、發明說明: 【發明所屬之技術領域】 本發明係有關在透明的板狀構件上貼附薄膜之積層 體。另外,本發明係有關配置於平板顯示器與該顯示的$ 視側,由透明覆蓋構件之積層體所構成的平板顯示裝置° 【先前技術】 於一邊保護平板顯示器的可視側面免於受到沖撞等’ 一邊確保顯示器的可視性之透明覆蓋構件,可使用以付與 φ 該覆蓋構件特定的功能等目的,而於裏面貼附樹脂薄膜的 覆蓋構件之積層體。 若將螢光燈等的光源與該積層體的表面保持在約60 - 度左右的角度,則來自光源的光於積層體被反射,光源的 反射像映入積層體表面。該映入像爲不規則的,例如:直 線被看成彎曲的曲線。 第4圖爲映入先前的積層體的反射像之一例的照片。 於厚度0.6mm的丙烯酸製透明板之裏面、塗佈厚度25/zm 〇 之丙烯系黏著劑而形成,於貼附厚度50〆m的對酞酸乙烯 (以下記爲「PET」)製薄膜之積層體,以約60度的角度所 映入的螢光燈像之部份照片。 上述不規則的映入現象,反射像會有顯出晃動的情 況,或者還會有顯出凹凸不平的情況。 晃動像會使平板顯示器的清晰度下降,消費者會對例 如行動電話等已配備該顯示器的產品之顯示機能產生懷 疑,因而使此種產品的競爭力下降。 以上反射像的晃動於製作名牌用積層體亦可觀察得 -4- 201006670 到。 先前有人提出於具金屬光澤的製作名牌用積層體上’ 防止反射光線變形的製作名牌用積層體(例如:參照專利文 獻1)。如第5圖該製作名牌用積層體100之斷面圖所示。 製作名牌用積層體100,由可視側依序爲透明基板101、黏 著層102與金屬蒸發沉積薄膜103之積層,第5圖中箭頭 160所示方向爲可視側。金屬蒸發沉積薄膜103,爲於透明 樹脂薄膜104的可視側形成金屬蒸發沉積層1〇5之物。而 ❹ 且,透明樹脂薄膜104之厚度介於175ym以上、300仁m 以下。 .專利文獻1 :專利第380204 1號公報 【發明内容】 (發明欲解決之課題) 平板顯示器的覆蓋構件等,通常爲透明基材上貼附樹 脂薄膜之積層體。貼附樹脂薄膜之目的是爲了附加特定的 功能。特定的功能例如:防止飛散、靜電感應功能、加上 ® 雕飾等。爲實現此等功能,樹脂薄膜的厚度被要求在一定 範圍。 解決當作防止具金屬光澤的製作名牌用積層體的反射 像晃動之樹脂薄膜之厚度變厚的方法,不能直接採用爲防 止平板顯示器的覆蓋構件等的反射像晃動之方法。 另外,此種的積層體必須有透明性,特別是平板顯示 器的覆蓋構件,由顯示器省電的觀點等而言,以顯示器的 影像直接被透射、提供可視性爲佳。以此點而言,若薄膜 變厚的話則光線透射的程度下降。 201006670 因此,本發明之課題係爲在不改變薄膜厚度,亦即一 邊保持貼附薄膜之附加功能,一邊獲得防止反射像的變形 之積層體。另一課題爲在不妨礙透明性之下,獲得防止反 射像的變形之積層體。 更進一步,本發明之課題係爲在不妨礙貼附薄膜付與 的一定功能,且不會使顯示器的影像之透射性下降,而獲 得防止反射像的變形之平板顯示裝置。 本發明之其他課題,經由本發明之說明將更清楚。 • (解決課題之手段) 與本發明之一態樣有關之積層體,其係於表面爲可視 . 側的透明基材之裏面,藉由黏著劑層貼附樹脂薄膜之積層 : 體,前述黏著劑層之厚度爲100/zm-200#m。 於本發明較佳之實施態樣中,前述積層體亦可爲平板 顯示器的覆蓋構件。 與本發明的其他態樣有關之平板顯示裝置,其係由配 置於平板顯示器與平板顯示器的可視側的積層體所構成之 ® 平板顯示裝置,前述積層體係於表面爲可視側的透明基材 之裏面,藉由黏著劑層貼附樹脂薄膜之積層體,而爲於前 述積層體的可見光範圍中全光線透射率爲80 %-100 %之積 層體,前述積層體的前述黏著劑層之厚度爲100# m-200jt/ m。 以上所說明之本發明、本發明較佳之實施態樣,以及 包括這些之構成要素,可以盡可能地組合實施。 (發明之效果) 與本發明有關之積層體,其係防止因黏著層劑的厚度 較先前爲厚所引起的反射像之變形。無需變更樹脂薄膜之 201006670 厚度。因此,對貼附樹脂薄膜之積層體的附加功能不會造 成絲毫的影響。另外,與樹脂薄膜相比較,黏著劑的可見 光線之透射性優異,維持積層體之透明性。 與本發明有關之平板顯示裝置,其係一邊防止反射像 之變形,一邊在不妨礙貼附薄膜所付與的一定功能,並且 亦不會使顯示器的影像之透射性下降》因此,提高清晰度。 此外,亦不會要求改變顯示器本體的顯示亮度等。 【實施方式】 φ 以下參照圖式進一步說明與本發明的實施例有關之積 層體與平板顯示裝置。本發明的實施例中所記載之構件或 部分的尺寸、材質、形狀以及其相對位置等,如未有特別 的特定記載,則不將此發明的範圍只限定於此等條件的宗 旨之物,而僅僅是說明例。 另外,於申請專利範圍與說明書中記載爲「X-Υ」(X、 Y爲任意的數字)的情況時,如未有特別的特定記載則意謂 「X以上、Y以下」。 ® 第1圖爲設置與本發明有關之平板顯示裝置的行動電 話之透視圖。行動電話50的外觀,包括外殻52與顯示窗 部分51。顯示窗部分51是平板顯示裝置20的顯示面能被 看見之範圍。 第2圖爲第1圖中的箭頭A-B所示,由液晶顯示器21 與積層體1所構成之平板顯示裝置20之斷面說明圖。 第2圖中未圖示外殼52或行動電話50的內部結構。 箭頭60表示平板顯示裝置20之可視側。亦即,審視 平板顯示裝置20的顯示之觀察者,其眼部位於第2圖的上 201006670 方。 積層體1由透明基材11、黏著劑層12與樹脂薄膜13 所構成。透明基材11的一方的表面17爲可視側;他方的 表面爲裏面16。樹脂薄膜13藉由黏著劑層12被貼附著於 裏面1 6。 〈透明基材11 &gt; 透明基材11,例如:爲將液晶顯示器之顯示,透過該 透明基材而進行觀察者。因此,透明基材11之透明性,在 φ 】13〖-7105的全光線透過率,通常爲80%以上、100%以下; 較佳爲85%以上、100%以下;更佳爲90%以上、100%以下❶ 而因具有光透過性,故於後述的樹脂薄膜面被反射之 反射像,爲透過透明基材11而被觀察者。 透明基材的材質,例如:爲玻璃、合成樹脂等。合成 樹脂,舉例而言有:聚甲基丙烯酸甲酯(PMMA)樹脂、聚碳 酸酯(PC)樹脂、甲基丙烯酸甲酯-苯乙烯共聚物樹脂(MS樹 脂)、聚丙烯酸酯樹脂、聚磺基樹脂、聚醚碾樹脂、降莰烯 系樹脂以及環烯烴(脂環)樹脂等。 透明基材11,可爲將預先成形爲板狀之物,切成具有 適當的輪廓之形狀者;另外,亦可爲將熔化狀態的材料形 成特定形狀者透明基材11,亦可爲平面狀的板、或擁有曲 面的板。 〈樹脂薄膜1 3 &gt; 樹脂薄膜13,例如:爲以PET、PC、聚對萘二甲酸乙 二酯(PEN)、丙烯爲材料之薄膜。樹脂薄膜13,可爲單層之 薄膜、亦可爲多層之薄膜。例如:通常被用來防止飛散之 201006670 薄膜,爲單層之PET薄膜。另外,例如:通常被使用之付 與靜電感應器功能之薄膜,爲在PET薄膜的兩面製備ITO 膜之薄膜。以此等PET薄膜而言,可以使用例如:東洋紡 績股份有限公司製的cosmoshine(註冊商標)A4300。 在與本發明有關的積層體,樹脂薄膜的厚度通常爲38 # m-200/z m,較佳爲 38;/ m-100# m,更佳爲 38以 m-50;/ m。 在與本發明有關的覆蓋構件用途之積層體,樹脂薄膜的 厚度與上述相同,較佳之厚度亦與上述相同。樹脂薄膜 φ 的厚度若於上述的範圍內,則可避免積層體厚度的增 加,方便編入產品(例如:平板顯示裝置)之中;另外,在 積層體的製造,亦因可大量捲上單一的軋輥,故製造上 的效率亦佳。 〈黏著劑層1 2〉 形成黏著劑層12之黏著劑,使用周知的丙烯系或矽氧 系的黏著劑即可。在行動電話、TV等一般性的平板顯示器 的覆蓋構件用途中,一般被使用的周知黏著劑之透明性 6 高,JISK-7 105的全光線透射率爲99%左右。 丙烯系黏著劑的組成,以例如:甲基丙烯酸烷基酯, 與含有官能基的單體和具有甲基丙烯醯基者爲主要成份之 甲基丙烯酸酯系共聚物。就此種甲基丙烯酸酯系共聚物而 言,所共聚之物可以列舉例如:丙烯酸2-乙基己酯、丙烯 酸正丁酯、丙烯酸以及其他單體(微單體或乙烯基系單體)。 爲了調整黏著劑之內聚力以及黏彈性,上述甲基丙烯 酸酯系共聚物間,添加可以形成架橋構造之多官能化合物 當作架橋劑。就架橋劑而言,可以使用例如:異氰酸鹽系 201006670 化合物。 黏著劑層12,被塗佈於一般樹脂薄膜13的一方表面, 藉由貼附透明基材11與樹脂薄膜13之工程而形成。塗佈 以周知的塗佈器塗佈即可。或者亦可於適當的臨時基材板 上,將事先形成的板狀黏著劑層,轉移至樹脂薄膜13的一 方表面而形成。 黏著劑層12之厚度d,通常爲100ym-20〇Am;較佳 爲100/z m-150// m;更佳爲11〇Α m-140/z m。若厚度於此範 Φ 圍內,則不會發生反射像的變形,另外,積層體的厚度不 會有不必要之增加,並且,黏著劑必要的量亦不會有不必 要之增加》 於先前的積層體被觀察到的反射像的變形,在黏著劑 塗佈時,樹脂薄膜所塗佈的黏著劑之表面,不爲平面而呈 細微的凹凸狀態,若將樹脂薄膜貼附於具有剛性且具有平 滑面之透明基材,則該細微的凹凸被反映在樹脂薄膜的形 狀上。此種形成的樹脂薄膜之細微凹凸形狀,被認爲是引 • 起不規則反射和反射像的變形之物。 因與本發明有關的積層體之黏著劑層增加厚度d,故 被認爲黏著劑表面的凹凸於黏著劑層內被平滑化,而不會 引起反射像的變形。 與本發明有關的積層體,其適當的應用例爲平板顯示 器的覆蓋構件。 於本發明中,平板顯示器意謂薄板狀之顯示裝置,包 括:液晶顯示器、FL(電激發光)、LED (發光二極體)、PDP(電 漿顯示器)、FED (場發射顯示器)等。 -10- 201006670 實施例1 於透明基材的裏面,作成藉由黏著劑層貼附樹脂薄膜 之積層體,並觀察反射像的變形。 所使用的透明機材爲厚度0.6mm之丙烯製透明板。另 外,樹脂薄膜爲厚度50//m之PET薄膜(東洋紡績股份有限 公司製的(:〇5111〇3 11丨1^(註冊商標)八4300)。黏著劑爲丙烯系黏 著劑,改變黏著劑層的厚度。反射像之變形,對以約60度 的角度映入積層體之螢光燈像進行目視觀察,有變形者以 • X、稍有變形者以△、無變形者以〇表示。 實驗結果如第1表所示。 〔第1表〕 實驗編號 黏著劑層之厚度 反射像之變形 (β m) 1 25 X 2 50 X 3 100 Δ 4 125 〇 5 175 〇[Technical Field] The present invention relates to a laminate in which a film is attached to a transparent plate member. Further, the present invention relates to a flat panel display device which is disposed on a flat panel display and a view side of the display, and is composed of a laminate of transparent cover members. [Prior Art] Protects the visible side of the flat panel display from being impacted on one side. A transparent covering member for ensuring the visibility of the display can be used as a laminate of a covering member to which a resin film is attached for the purpose of imparting a function specific to the covering member. When the light source such as a fluorescent lamp and the surface of the laminated body are maintained at an angle of about 60 to about a degree, light from the light source is reflected by the laminated body, and the reflected image of the light source is reflected on the surface of the laminated body. The reflection is irregular, for example: the line is seen as a curved curve. Fig. 4 is a photograph showing an example of a reflection image of the previous laminate. It is formed by applying a propylene-based adhesive having a thickness of 25/zm to the inside of an acrylic transparent plate having a thickness of 0.6 mm, and attaching a film of a vinyl phthalate (hereinafter referred to as "PET") having a thickness of 50 〆m. The laminated body, a part of the photo of the fluorescent light reflected at an angle of about 60 degrees. In the above-mentioned irregular reflection phenomenon, the reflection image may be swayed, or there may be a case where the unevenness is uneven. Shaking the image can degrade the clarity of the flat panel display, and consumers will be suspicious of the display function of products such as mobile phones that have been equipped with the display, thereby reducing the competitiveness of such products. The sway of the above reflection image can also be observed in the production of a laminate for brand name -4- 201006670. It has been proposed to produce a brand-name laminated body for preventing the reflection of light from being reflected on a metallized laminated body for brand name (for example, refer to Patent Document 1). As shown in Fig. 5, a cross-sectional view of the laminated body 100 for brand name is shown. The brand-name laminated body 100 is produced, and the transparent substrate 101, the adhesive layer 102, and the metal evaporated deposition film 103 are sequentially laminated from the visible side, and the direction indicated by an arrow 160 in Fig. 5 is the visible side. The metal evaporation deposition film 103 is formed by forming a metal evaporation deposition layer 1〇5 on the visible side of the transparent resin film 104. Further, the thickness of the transparent resin film 104 is 175 μm or more and 300 Å or less. [Problem to be Solved by the Invention] A cover member of a flat panel display or the like is usually a laminate in which a resin film is attached to a transparent substrate. The purpose of attaching the resin film is to attach a specific function. Specific features such as: preventing scattering, electrostatic induction, plus ® carvings. In order to achieve such functions, the thickness of the resin film is required to be within a certain range. In the method of preventing the thickness of the resin film which is reflected by the reflection of the laminated body for the production of the brand name, it is not possible to directly use the method of preventing the reflection of the reflection of the cover member of the flat panel display or the like. Further, such a laminate must have transparency, in particular, a cover member of a flat panel display, and it is preferable that the image of the display is directly transmitted and provides visibility from the viewpoint of power saving of the display. From this point of view, if the film becomes thick, the degree of light transmission is lowered. 201006670 Therefore, the subject of the present invention is to obtain a laminate which prevents deformation of a reflection image without changing the thickness of the film, that is, the additional function of holding the film on one side. Another object is to obtain a laminate which prevents deformation of a reflection image without impeding transparency. Further, the subject of the present invention is a flat panel display device which can prevent deformation of a reflection image without causing a certain function of attaching a film to be applied without deteriorating the transmittance of the image of the display. Other problems of the present invention will become more apparent from the description of the present invention. (Means for Solving the Problem) A laminated body relating to one aspect of the present invention is attached to the inside of a transparent substrate having a visible side on the surface, and a laminate of a resin film is attached by an adhesive layer: the body, the aforementioned adhesive The thickness of the agent layer is from 100/zm to 200#m. In a preferred embodiment of the invention, the laminate may also be a cover member of a flat panel display. A flat panel display device according to another aspect of the present invention is a flat panel display device comprising a laminate disposed on a visible side of a flat panel display and a flat panel display, wherein the laminated system is a transparent substrate having a visible side on the surface. The laminated body of the resin film is adhered to the inside of the laminated body, and the laminated body having a total light transmittance of 80% to 100% in the visible light range of the laminated body is the thickness of the adhesive layer of the laminated body. 100# m-200jt/ m. The invention as described above, the preferred embodiments of the invention, and the constituent elements including these can be combined as much as possible. (Effect of the Invention) The laminate according to the present invention is intended to prevent deformation of the reflection image caused by the thickness of the adhesive layer being thicker than before. There is no need to change the thickness of the 201006670 resin film. Therefore, the additional function of the laminated body to which the resin film is attached does not have any influence. Further, the adhesive has excellent transmittance of visible light as compared with the resin film, and maintains the transparency of the laminate. The flat panel display device according to the present invention prevents deformation of the reflected image while not impeding a certain function of the attached film, and does not reduce the transmittance of the image of the display. . In addition, it is not required to change the display brightness of the display body or the like. [Embodiment] φ Hereinafter, a laminate and a flat panel display device according to an embodiment of the present invention will be further described with reference to the drawings. The dimensions, materials, shapes, relative positions, and the like of the members or portions described in the examples of the present invention are not limited to the scope of the present invention unless otherwise specified. It is just an illustrative example. In addition, when it is described as "X-Υ" (X, Y is an arbitrary number) in the patent application scope and the description, if it is not specifically described, it means "X or more, Y or less." ® Fig. 1 is a perspective view showing a mobile phone of a flat panel display device relating to the present invention. The appearance of the mobile phone 50 includes a housing 52 and a display window portion 51. The display window portion 51 is a range in which the display surface of the flat panel display device 20 can be seen. Fig. 2 is a cross-sectional explanatory view showing the flat panel display device 20 including the liquid crystal display 21 and the laminated body 1 as indicated by an arrow A-B in Fig. 1. The internal structure of the casing 52 or the mobile phone 50 is not shown in Fig. 2 . Arrow 60 represents the visible side of flat panel display device 20. That is, the viewer who views the display of the flat panel display device 20 has an eye portion located at the upper 201006670 side of Fig. 2. The laminated body 1 is composed of a transparent substrate 11, an adhesive layer 12, and a resin film 13. One surface 17 of the transparent substrate 11 is a visible side; the other surface is an inner surface 16. The resin film 13 is adhered to the inside 16 by the adhesive layer 12. <Transparent Substrate 11 &gt; The transparent substrate 11 is, for example, a viewer who observes a liquid crystal display and transmits the transparent substrate. Therefore, the transparency of the transparent substrate 11 is usually 80% or more and 100% or less in the total light transmittance of φ 13 13 to -7105; preferably 85% or more and 100% or less; more preferably 90% or more. 100% or less ❶ Because of the light transmittance, the reflection image reflected on the surface of the resin film to be described later is observed through the transparent substrate 11 . The material of the transparent substrate is, for example, glass or synthetic resin. Synthetic resins, for example, polymethyl methacrylate (PMMA) resin, polycarbonate (PC) resin, methyl methacrylate-styrene copolymer resin (MS resin), polyacrylate resin, polysulfonate Base resin, polyether mill resin, norbornene resin, and cycloolefin (alicyclic) resin. The transparent substrate 11 may be formed into a shape of a plate and cut into a shape having an appropriate contour. Alternatively, the material in a molten state may be formed into a transparent shape of a specific shape, or may be planar. Board, or board with a curved surface. <Resin film 1 3 &gt; The resin film 13 is, for example, a film made of PET, PC, polyethylene naphthalate (PEN), or propylene. The resin film 13 may be a single layer film or a multilayer film. For example, the 201006670 film, which is usually used to prevent scattering, is a single-layer PET film. Further, for example, a film which is usually used for the function of an electrostatic sensor is a film in which an ITO film is formed on both sides of a PET film. For the PET film, for example, cosmoshine (registered trademark) A4300 manufactured by Toyobo Co., Ltd. can be used. In the laminate according to the present invention, the thickness of the resin film is usually 38 # m-200/z m, preferably 38; / m-100 # m, more preferably 38 to m-50; / m. In the laminate of the covering member used in the present invention, the thickness of the resin film is the same as described above, and the thickness is preferably the same as described above. When the thickness of the resin film φ is within the above range, the thickness of the laminate can be prevented from increasing, and it can be easily incorporated into a product (for example, a flat panel display device). In addition, in the manufacture of the laminate, a large number can be wound up. Rolls, so the efficiency in manufacturing is also good. <Adhesive Layer 1 2> The adhesive for forming the adhesive layer 12 may be a known propylene-based or antimony-based adhesive. In the use of a covering member for a general flat panel display such as a mobile phone or a TV, the transparency of a known adhesive which is generally used is high, and the total light transmittance of JIS K-7 105 is about 99%. The composition of the propylene-based adhesive is, for example, an alkyl methacrylate, a methacrylate copolymer having a functional group-containing monomer and a methacryl oxime group as a main component. The methacrylate-based copolymer may, for example, be 2-ethylhexyl acrylate, n-butyl acrylate, acrylic acid or another monomer (micromonomer or vinyl monomer). In order to adjust the cohesive force and viscoelasticity of the adhesive, a polyfunctional compound capable of forming a bridging structure is added as a bridging agent between the above methacrylate copolymers. As the bridging agent, for example, an isocyanate system 201006670 compound can be used. The adhesive layer 12 is applied to one surface of the general resin film 13, and is formed by attaching the transparent substrate 11 and the resin film 13. Coating may be carried out by a known applicator. Alternatively, a previously formed plate-shaped adhesive layer may be transferred to one surface of the resin film 13 on a suitable temporary substrate sheet. The thickness d of the adhesive layer 12 is usually 100 μm - 20 Å Am; preferably 100 / z m - 150 / / m; more preferably 11 〇Α m - 140 / z m. If the thickness is within this range, no deformation of the reflected image will occur, and the thickness of the laminated body will not increase unnecessarily, and the necessary amount of the adhesive will not increase unnecessarily. The laminate is observed to be deformed by the reflection image. When the adhesive is applied, the surface of the adhesive coated with the resin film is not flat and has a fine uneven state. If the resin film is attached to the resin, it is rigid. The transparent substrate having a smooth surface is reflected in the shape of the resin film. The fine concavo-convex shape of the resin film thus formed is considered to be a deformation which causes irregular reflection and reflection image. Since the adhesive layer of the laminate according to the present invention is increased in thickness d, it is considered that the unevenness of the surface of the adhesive is smoothed in the adhesive layer without causing deformation of the reflected image. A suitable application example of the laminate relating to the present invention is a covering member of a flat panel display. In the present invention, a flat panel display means a thin plate-shaped display device, which includes a liquid crystal display, FL (Electrical Excitation Light), LED (Light Emitting Diode), PDP (Plastic Display), FED (Field Emission Display) and the like. -10-201006670 Example 1 A laminate of a resin film was attached to the inside of a transparent substrate by an adhesive layer, and deformation of the reflected image was observed. The transparent machine used was a transparent plate made of acryl having a thickness of 0.6 mm. In addition, the resin film is a PET film having a thickness of 50/m (manufactured by Toyobo Co., Ltd. (: 〇5111〇3 11丨1^(registered trademark) 八4300). The adhesive is a propylene-based adhesive, and the adhesive is changed. The thickness of the layer, the deformation of the reflected image, and the visual observation of the fluorescent lamp image reflected in the laminated body at an angle of about 60 degrees, and the deformed person is represented by X, the slightly deformed person is Δ, and the non-deformed person is represented by 〇. The experimental results are shown in Table 1. [Table 1] Experiment No. Thickness of the adhesive layer Deformation of the image (β m) 1 25 X 2 50 X 3 100 Δ 4 125 〇5 175 〇

第3圖爲映入與本發明有關的積層體的反射像之照 片。爲以約60度的角度映入第1表中實驗編號4 (黏著劑層 之厚度爲125以m)的積層體之一部分螢光燈像之照片。 【圖式簡單說明】 第1圖爲設置與本發明有關之平板顯示裝置的行動電 話50之透視.圖。 第2圖爲由液晶顯示器21與積層體1所構成之平板顯 -11- 201006670 示裝置20之斷面說明圖。 第3圖爲映入與本發明有關之積層體的反射像的照 片。 第4圖爲映入習知之積層體的反射像的一例照片。 第5圖爲習知具金屬光澤之製作名牌用積層體100之 斷面說明圖。 【主要元件符號說明】Fig. 3 is a photograph showing a reflection image of a laminate according to the present invention. A photograph of a portion of the fluorescent lamp image of the laminated body of Experiment No. 4 (the thickness of the adhesive layer was 125 m) in Table 1 was observed at an angle of about 60 degrees. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a mobile phone 50 in which a flat panel display device relating to the present invention is provided. Fig. 2 is a cross-sectional explanatory view showing the device 20 of the flat panel display -11-201006670 composed of the liquid crystal display 21 and the laminated body 1. Fig. 3 is a photograph showing a reflection image of a laminate according to the present invention. Fig. 4 is a photograph showing an example of a reflection image of a conventional laminate. Fig. 5 is a cross-sectional explanatory view showing a conventional laminated body 100 for producing a brand with a metallic luster. [Main component symbol description]

1 覆 蓋 構 件 之 積 層 體 11 透 明 基 材 12 黏 著 劑 層 13 樹 脂 薄 膜 20 平 板 顯 示 裝 置 21 平 板 顯 示 器 之 液 晶顯示器 100 製 作 名 llrf-t 牌 用 積 層 體 101 透 明 基 板 102 黏 著 層 103 金 屬 蒸 發 沉 積 薄 膜 -12-1 Covering member of laminated body 11 Transparent substrate 12 Adhesive layer 13 Resin film 20 Flat panel display device 21 Liquid crystal display 100 for flat panel display Manufacturing name llrf-t brand laminated body 101 Transparent substrate 102 Adhesive layer 103 Metal evaporation deposited film-12 -

Claims (1)

201006670 七、申請專利範圍: 1. —種積層體,其係於表面爲可視側的透明基材之裏面, 藉由黏著劑層貼附樹脂薄膜之積層體,其特徵爲前述黏 著劑層之厚度爲lOO/zm-200 /zm。 2. 如申請專利範圍第1項之積層體,其中積層體爲平板顯 示器的覆蓋構件。 3. —種平板顯示裝置,其係由配置於平板顯示器與平板顯 示器的可視側的積層體所構成之平板顯示裝置,前述積 φ 層體係於表面爲可視側的透明基材之裏面,藉由黏著劑 層貼附樹脂薄膜之積層體,於前述積層體的可見光範圍 中全光線透射率爲80%-100%之積層體,其特徵爲前述積 層體的黏著劑層之厚度爲l〇〇Vm-200//m。 春 -13-201006670 VII. Patent application scope: 1. A laminated body which is attached to a transparent substrate having a visible side on the surface, and a laminate of a resin film attached by an adhesive layer, characterized in that the thickness of the adhesive layer is It is lOO/zm-200 /zm. 2. The laminated body of claim 1, wherein the laminated body is a covering member of the flat panel display. 3. A flat panel display device comprising: a flat panel display device comprising a laminate disposed on a visible side of a flat panel display and a flat panel display, wherein the φ layer system is on a transparent substrate having a visible side on the surface thereof a layered body in which a layer of a resin film is adhered to an adhesive layer, and a layered body having a total light transmittance of 80% to 100% in a visible light range of the layered body is characterized in that the thickness of the adhesive layer of the layered body is l〇〇Vm -200//m. Spring -13-
TW098126298A 2008-08-07 2009-08-05 Laminate for inhibiting reflective image wobble and flatpanel display TW201006670A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102859421A (en) * 2010-03-05 2013-01-02 大日本印刷株式会社 Liquid crystal display device

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* Cited by examiner, † Cited by third party
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JP2007108592A (en) * 2005-10-17 2007-04-26 Nitto Denko Corp Laminate for liquid crystal display apparatus, and liquid crystal display apparatus with same
JP2007264578A (en) * 2006-03-30 2007-10-11 Dainippon Printing Co Ltd Optical filter for display and plasma display
JP4997816B2 (en) * 2006-04-14 2012-08-08 東洋インキScホールディングス株式会社 UV blocking resin composition and use thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102859421A (en) * 2010-03-05 2013-01-02 大日本印刷株式会社 Liquid crystal display device
CN102859421B (en) * 2010-03-05 2016-05-18 大日本印刷株式会社 Liquid crystal display

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