TW201020113A - Display panel having composite multi-layered films and manufacturing method thereof - Google Patents
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Abstract
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t201020113 、九、發明說明： 【發明所屬之技術領域】 本發明係一種具複合多層膜的顯示器面板，尤其係一 種在表面設置有多層折射率不同之光學膜片的顯示器面 板，以使該顯示器面板在處於主動發光時能達到防窺的功 能’並在被動發光時隨視角不同而呈現各種顏色變化，而 達到裝飾的效果。 【先前技術】 m 請參看第三圖所示，一般的光學干涉膜（50)係具有多 層折射率不同的膜片或膜堆（stack)(51，52)，其係一種使 特定波長區段的光通過，或使其他波長區段的光反射的光 學元件，目前常使用於如光譜帶通、帶止、長波通或短波 通的濾光片、光通量調變裝置、光開關、光資訊的記存裝 置、防偽標籤等。 舉例來說，以A、B兩種不同材質的膜片或膜堆堆疊 • 而成的光學干涉膜，其對於光線的穿透具有選擇性，請附 加參看第四圖所示，此光學干涉膜可讓波長約 550〜650nm、約200nm以及約120nm的光線達100。/〇的 反射’而讓其他波長的光線則可穿透。 再睛參看第五圖所示’該圖所用的光學干涉膜係以在 上述具AB雙層膜堆的光學干涉膜上再加一層c膜堆，於 特定厚度折射率的設計下，則可使原本反射率達，〇〇0/〇的 約200nm光線穿透，與第四圖的結果明顯不同，設計原理 請參考美國第US51 03337號專利。其係利用光學干涉的 t201020113 原理：當兩個以上光波相疊時，兩者的光程差為波長的整 數倍時’則稱為「同相」’因而形成強度相加的「建設性 干涉」’此時反射率提高；若兩者的光程差為半波長的整 數倍時，則稱為「反相」，因而形成強度相消的「破壞性 .干涉」’此時反射率降低。 因此，藉由不同的材質、厚度等性質的膜堆以及膜堆 堆疊的數量互相搭配，則能夠設計出特定波長光線反射， φ 其他波長通過的光學干涉臈，且該特定波長之光線的頻寬 亦可調整。 在美國第3,610,729號以及第3,711,176號專利中提BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display panel having a composite multilayer film, and more particularly to a display panel having a plurality of optical films having different refractive indices on a surface thereof, so that the display panel In the case of active illumination, the function of anti-peeping can be achieved, and in the case of passive illumination, various color changes are exhibited depending on the viewing angle, and the decorative effect is achieved. [Prior Art] m As shown in the third figure, a general optical interference film (50) has a plurality of diaphragms or stacks (51, 52) having different refractive indices, which are a specific wavelength section. Optical elements that pass light or reflect light in other wavelength segments are currently commonly used in filters such as spectral bandpass, band stop, long pass or short pass, flux modulation devices, optical switches, optical information. Recording devices, anti-counterfeiting labels, etc. For example, an optical interference film made of a film or a stack of films of different materials A and B is selective for light penetration. Please refer to the fourth figure for an optical interference film. Light having a wavelength of about 550 to 650 nm, about 200 nm, and about 120 nm can be made 100. /〇's reflection' allows light of other wavelengths to penetrate. Referring to the fifth figure, the optical interference film used in the figure is further provided with a layer of c film on the optical interference film with the AB double-layer film stack, which can be designed under the specific thickness refractive index design. The original reflectance is about 〇〇0/〇, and the light penetration of about 200 nm is obviously different from the result of the fourth figure. For the design principle, please refer to US Patent No. 51 03337. It uses the principle of optical interference t201020113: When two or more light waves are stacked, when the optical path difference between the two is an integer multiple of the wavelength, 'there is called "in-phase", thus forming a "constructive interference" of the sum of the strengths. At this time, the reflectance is improved. When the optical path difference between the two is an integral multiple of a half wavelength, it is called "inverse phase", and thus the "destructive interference" which eliminates the intensity is formed. Therefore, by combining the number of membranes and stacks of different materials and thicknesses, it is possible to design a specific wavelength of light reflection, φ other wavelengths of optical interference, and the bandwidth of the specific wavelength of light. Can also be adjusted. In US Patent Nos. 3,610,729 and 3,711,176
到由兩種高分子聚合物層彼此疊加而成，經共押出製程所 製作的光學干涉膜，藉由兩種聚合物層彼此間的折射率之 差異與厚度變化，可使入射光產生建設性干涉（constructive …心咖叫。藉此，光學干涉膜可讓特定波長的光通過， 而讓其他波長的光反射。光線經光學干涉膜反射與透射的 光譜主要決定於聚合物層的光學厚度，所謂之光學厚度是 指聚合物層的厚度與折射率之乘積。 請參看第六圖所示，目前的複合光學膜(H〇F)大多應 用於液晶背光模組中，#主要功能在於集中並提高顯示輝 度（Brightness)、增加輝度的分布均勻性以及降低光學分 布不均的缺陷（日本猛之Μ丨 令稱之MURA)等優點，如在美國第 3,610,729號專利，* 一制竹古八 局製作同分子多層膜的反射式偏光 片的製作與設計方式，目前p錄士 Θ 、 目引已、，丄大s將其應用於液晶顯示 益中的貪光模組之中，gp将采I丨田雜人 T即係利用複合光學膜作為背光模組 ^201020113 〜 中的偏光片。如圖所示’液晶背光模組中包括一反射板 (61)、設置於該反射板（61)中的光源（62)以及一複合光學膜 (63)，該光源（62)係朝該複合光學膜（63)的方向發光，由於 該複合光學膜（63)在製成後必須要經過單軸拉伸（uniaxja丨） 的步驟’以成為具雙折射（birefrjgerice)的元件，在特定平 行於延伸軸的的方向上的高分子聚合物其材質折射率差異 很大，而在另一個垂直延伸軸且與延伸軸方向同一平面的 方向上則幾乎無差異，或是差異很小。而在另一沿著厚度 變化的方向其高分子間的折射率則亦僅有一些差異或差異 很小。由於自然光線一般為非偏振光，因此可分解為兩互 相垂直的線性偏振光，利用以上的學理，故此種既有的複 合光學膜（63)應用於背光模組内則具有偏光反射的功能， 會將部分原本會被易經顯示器下方貼附的偏光板（p。丨 吸收的偏振光線先行反射避免被其吸收。而此經複合光學 膜（63)的偏光反射光在反射到反射片上將會被去偏振 • (deP〇lariZati〇n)，所以將會轉換成可利用的偏振光，所以 此類型的具偏振反射的偏光板必須放置在液晶顯示器下方 才有效果。 然而，若將此複合光學膜（63)放置於液晶顯示器上方， 則將完全失去其因偏光原理而增亮的效果，因為光線必須 在未經過液晶面板上的偏光板前，就將光線轉成特定的偏 振光線，這樣的偏光反射回收利用方式為目前液晶顯示哭 增党的方式之-’且因為其偏光轉換的頻譜為全頻譜，所 以光線經過此具偏光反射的複合光學膜（63)之後的視角角 <201020113 度與顏色幾乎無變化，此與一般利用結構增光的增亮膜 (Brightness Enhancement Film，BEF)比較，此複合光學 膜（63)並無像BEF等結構體所構成的反射片等會有縮小視 角角度的問題，因BEF主要乃利用聚光方式增亮，是將大 視角的光線往小視角方向折射以獲取較高的輝度。 如第七圖以及附件一所示，為本發明使用高分子多層 膜增免效果的達成，係由於光源發射後經液晶面板後再射The optical interference film made by superimposing two kinds of polymer layers on each other, and the optical interference film produced by the co-extrusion process can make the incident light constructive by the difference of the refractive index and thickness of the two polymer layers. Interference (constructive). Thereby, the optical interference film allows light of a specific wavelength to pass, and light of other wavelengths is reflected. The spectrum of light reflected and transmitted through the optical interference film is mainly determined by the optical thickness of the polymer layer. The so-called optical thickness refers to the product of the thickness of the polymer layer and the refractive index. Please refer to the sixth figure, the current composite optical film (H〇F) is mostly used in the liquid crystal backlight module, #main function is concentrated and Improve the brightness of the display, increase the uniformity of the distribution of the luminance, and reduce the defects of the uneven optical distribution (MURA of Japan's Mengzhi), such as the US Patent No. 3,610,729, * The production and design of reflective polarizers for the production of multi-layered multilayer films, currently used in the liquid crystal display, the greedy light In the group, gp will use the composite optical film as the polarizer of the backlight module ^201020113 ~ as shown in the figure. [The liquid crystal backlight module includes a reflector (61), setting a light source (62) in the reflector (61) and a composite optical film (63), the light source (62) emitting light toward the composite optical film (63), since the composite optical film (63) is in the process After the formation, the uniaxial stretching (uniaxja丨) step must be carried out to become a birefractory element, and the refractive index of the polymer in a direction parallel to the extending axis is very different. There is almost no difference in the direction of the other vertical extension axis and the same plane as the extension axis direction, or the difference is small. In another direction along the thickness change, the refractive index between the polymers is only some. The difference or the difference is small. Since the natural light is generally unpolarized, it can be decomposed into two mutually perpendicular linearly polarized light. With the above theory, the existing composite optical film (63) is applied to the backlight module. Polarized reflection The function will partially reflect the polarized light that is originally attached under the Yijing display (p. 丨 absorbed polarized light is first reflected to avoid being absorbed by it. The polarized reflected light of the composite optical film (63) is reflected on the reflective sheet. Will be depolarized (deP〇lariZati〇n), so it will be converted into usable polarized light, so this type of polarized reflective polarizer must be placed under the LCD display to have an effect. When the composite optical film (63) is placed above the liquid crystal display, it will completely lose its effect of brightening due to the principle of polarization, because the light must be converted into a specific polarized light before passing through the polarizing plate on the liquid crystal panel, so that the light is converted into a specific polarized light. The method of recycling the polarized reflection is the current way of liquid crystal display crying and increasing the party's and because the spectrum of its polarization conversion is the full spectrum, the angle of view after the light passes through the composite optical film (63) with polarized reflection <201020113 There is almost no change in degree and color, which is compared with the brightness enhancement film (BEF) which is generally structured to be brightened. The film (63) does not have a problem of narrowing the angle of view such as a reflection sheet composed of a structure such as BEF. Since the BEF is mainly brightened by the condensing method, the light of a large viewing angle is refracted toward a small viewing angle to obtain a comparison. High brightness. As shown in the seventh figure and the annex 1, the effect of the enhancement of the use of the polymer multilayer film of the present invention is achieved, because the light source is emitted and then passed through the liquid crystal panel.
入一高分子多層膜的光線角度超過一特定角度時，將該角 度以上的入射光將會反射至該反射板，再經由&射板的反 射與調整並改變人射到高分子多層膜方的角度與方向，直 到該光線的人射角小於該特^角《，即可通過高分子多層 膜，而穿過高分子多層膜的光線角度由於被集中而增亮， 而大角度人射的光線將被轉成小角度光線再回收，故可達 到增加亮度的效果。When the angle of the light entering a polymer multilayer film exceeds a certain angle, incident light above the angle will be reflected to the reflector, and then reflected and adjusted by the & plate and changed to the polymer multilayer film. The angle and direction until the angle of the person of the light is less than the special angle ", can pass through the polymer multilayer film, and the angle of the light passing through the polymer multilayer film is brightened by being concentrated, and the angle of the human being is high. The light will be converted into a small angle of light and recycled, so the effect of increasing the brightness can be achieved.
再請附加參看第人|V t /iL 圖以及附件二所示，上述複合光學 ^ 臈係被設計為入射备I I Μ 魯 勹耵肖不小於60度的光線可通過，因 圖可看出，在入射角為〇 ^ υ度枯’在波長為550~6〇〇nm的 可見光可完全透過該複合弁 — 口先予膜，而在入射角為60度時， 在波長為550〜60〇nm ίΛ -r C* nm的可見光則幾乎完全被阻擋而反射 主反射扳。 一般複合光學膜的製 利的第-圖，其係將二箱：了參看美國第3,773,882號專 t-—種熱可塑性材料分別放置在入料槽 ^二種材料經過-分流器分流，並由押 出而一體成形高分子客思 街幵出機共怦 層膜’其令材料種類的數量可再視 f201020113 需求增加設置。 …如上所述’目前的光學干涉膜僅止於應用在背 先模組中1無應用在顯示器的基板上，作為防窺膜使用。Please refer to the first person|V t /iL diagram and the second part. The above composite optical system is designed to be incident on the II Μ Lu 勹耵 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不The visible light at the incident angle is 〇^ 枯度', and the visible light at a wavelength of 550~6〇〇nm can be completely transmitted through the composite 弁-mouth, and at an incident angle of 60 degrees, at a wavelength of 550~60〇nm Λ The visible light of -r C* nm is almost completely blocked and reflects the main reflection. The general drawing of the composite optical film is shown in the figure, which is a two-box: see US No. 3,773,882 special t-type thermoplastic materials placed in the feed trough, two materials through the - splitter, and by Extrusion and integral formation of the polymer Kesi Street 幵 怦 怦 ' ' ' 其 其 其 其 其 其 其 其 其 其 其 其 其 其 其 其 其 其 其 。 。 f f f ... As described above, the current optical interference film is only used in the back module 1 and is not applied to the substrate of the display, and is used as a peeping film.
既有的防窺結構可參看美國帛6,765,55〇號專利案， 其係利用百葉窗的原理所設計’其係在顯示器前方直向設 置複數擋片，料擋片相互平行，且距離極小的間隔，讓 使用者在正常視角（即顯示器前方）的範圍内可看到顯示器 所顯示的畫面，而在顯示器側邊的觀看者則會因為擋片的 阻播而無法看到顯示器畫面，藉此達到防窺的目的。 再者，美國第6,398,370號專利案揭露另一種防窺結 構，其係、包括放置在顯示器前方的二相互結合之板體，各 板體於面對另一板體之一表面間隔對應凹設有複數凹槽， 且該凹槽内填充光吸收材料；當光線射入二板體時，於特 定角度内的入射光可直接穿透二板體，而大於該特定角度 的光線則會射入凹槽中，且被光吸收材料所吸收，而無法 穿透板體，因此藉由該等凹槽中的間隔大小，即可控制穿 透板體之光線的角度，讓使用者於特定視角才能觀看到顯 示器所顯示的畫面。 然而，這輪既有的防窺裝置係藉由將光線遮擋或吸收 而達到㈣，但是這種方式會讓浪費無法穿透之光線的能 量，因此仍有改善的空間。 另外，一般於基材上形成如氧化銦錫（丨τ〇)、防眩膜 (anti-glare film)等薄膜的方法不外乎液體成膜法以及氣體 成膜法。液體成膜法是利用液體本身或以其作為媒介’產 ^201020113The existing anti-spy structure can be found in the U.S. Patent No. 6,765,55, which is designed by the principle of the louver, which is provided with a plurality of baffles in front of the display, and the baffles are parallel to each other with a very small distance. The user can see the picture displayed by the display in the range of normal viewing angle (ie, in front of the display), and the viewer on the side of the display can not see the display picture because of the blocking of the blocking piece, thereby achieving The purpose of anti-peep. In addition, U.S. Patent No. 6,398,370 discloses another anti-spy structure, which comprises two mutually combined plates placed in front of the display, each plate being spaced apart from the surface of one of the other plates. a plurality of grooves, and the groove is filled with a light absorbing material; when the light is incident on the two plates, the incident light at a specific angle can directly penetrate the two plates, and the light larger than the specific angle is injected into the concave The groove is absorbed by the light absorbing material and cannot penetrate the plate body. Therefore, by the interval in the grooves, the angle of the light penetrating the plate body can be controlled, so that the user can view at a specific angle of view. Go to the screen displayed on the display. However, this existing anti-spyware device achieves (4) by blocking or absorbing light, but this method will waste the energy of the light that cannot be penetrated, so there is still room for improvement. Further, a method of forming a film such as indium tin oxide or an anti-glare film on a substrate generally involves a liquid film formation method and a gas film formation method. Liquid film formation method is to use the liquid itself or as a medium to produce '201020103
生化學或電化學反應而在基板上形成薄膜，例如酸蝕法、 電鑛法、溶膠凝膠法、液相外延法（LPE)等；氣相成膜法 係將欲形成膜的組成成份以氣'態方式沈積於基板表面，其 匕括物理蒸氣沈積法（physica丨vapor deposition，PVD)， 及化學氣相沈積法（chemical vapor deposition, CVD)，PVD 包括真空瘵發鍍膜、真空濺射鍍和真空離子鍍膜等技術， 而CVD包括電漿輔助化學氣相沉積（pEcVD)、有機金屬化 _ 予氣相'儿積（M〇CVD)、混合物理化學氣相沉積（HPCVD) 等。 然而 這二既有的基材成膜方法會耗費相當大的成 本。多層膜膜堆的製作，其料堆疊的數量通常都超過數 :層到數百層以上才有—定的效果，某些液體成膜製程其 成膜的膜堆數量受限，無法達到多層的膜堆，戶斤以其光學 效能不佳，幾乎益法蚀田 卞^ 十…法使用，而有較優光學效能的氣體成膜 ^ ’其成膜速度緩慢，材料昂t，蒸链或濺錢中浪費的 昂貝材料常無法輕易回收， 此丄、 4 口收機制較為複雜，所以傳 先成膜方式製作多層膜膜 Λ. ^ ^ 膜堆成本皆鬲，而若要製作非等向 座的膜堆對於傳統成腹制 β 户$ 、製^更疋困難，常需受限於特定環 境與製程條件。而且 竹疋哀 例如當基材係具有弧度二讓膜在基材上延伸， 膜設備更為複雜，也需Π二則會使得成膜程序以及鑛 万法丈到很大的挑戰。 刊取联 【發明内容】 有鑒於既有具1^· @ „ 果的結構係消極地將光線遮擋或 9Forming a thin film on a substrate by biochemical or electrochemical reaction, such as acid etching, electromineralization, sol-gel method, liquid phase epitaxy (LPE), etc.; gas phase film formation method is to form the composition of the film. The gas state is deposited on the surface of the substrate, including physical vapor deposition (PVD) and chemical vapor deposition (CVD). PVD includes vacuum burst coating and vacuum sputtering. And techniques such as vacuum ion plating, and CVD includes plasma-assisted chemical vapor deposition (pEcVD), organometallization, pre-gas phase enthalpy (M〇CVD), mixture physicochemical vapor deposition (HPCVD), and the like. However, these two existing substrate film forming methods take a considerable amount of cost. In the fabrication of multi-layer film stacks, the number of material stacks usually exceeds several: from layer to hundreds of layers, the effect is limited. In some liquid film-forming processes, the number of film-forming stacks is limited, and it is impossible to achieve multi-layer Membrane reactor, the household with its optical performance is not good, almost beneficial to the use of 蚀 卞 ^ ten ... method, and the film with better optical performance ^ 'the film formation speed is slow, the material is ang t, steamed chain or splash The waste of Amber's material in the money can't be easily recovered. The 丄4 and 口 收 机制 较为 4 4 4 4 4 4 4 4 4 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ The membrane stack is more difficult for the conventional abdominal system to make it more difficult to meet the specific environment and process conditions. Moreover, bamboo sorrow, for example, when the substrate has a curvature of two to allow the film to extend on the substrate, the membrane equipment is more complicated, and the second step will make the film forming process and the mining method a big challenge. Publications [Invention] In view of the fact that there are structures with 1^· @ „ Fruits that negatively block light or 9
V 201020113 - 吸收，因此會導致能量的損1，所以本發明人藉由對於材 料之光學性質的了解，並經過多方的試驗以及努力後，終 於發明出此具複合多層膜的顯示器面板。 又有鑒於既有基材成膜方式需耗費成本，且會有磨損 基板之疑慮，因此亦發明出將複合多層膜成形於顯示器面 板上的方法。 本發明之一目的係在於提供一種在表面設置有多層折 Φ 射率不同之光學膜片的顯示器面板，以使該顯示器面板在 處於主動發光時能達到防窺的功能，並在被動發光時隨視 角不同而呈現各種顏色變化，而達到裝飾的效果。 本發明另一目的係在於提供一種以低成本、易延伸、 易大面積製作，而將以上所述之複合多層膜成形於顯示器 面板上的方法。 為達上述目的’本發明具複合多層膜的顯示器面板， 其係令S亥顯示器面板上設有一複合多層膜，而該複合多層 Φ 膜至少包括二層具有不同折射率且相互疊合的高分子聚合 物膜片。 其中當一光源通過該顯示器面板再經該複合多層膜 時’該複合多層膜令視角縮小，當一光源自複合多層膜朝 顯不器面板方向入射’則該複合多層膜隨不同視角反射出 不同顏色的光線色彩。 其中該顯示器可為自發光之顯示器（如發光二極體 (LED)顯示器、有機發光二極體（〇LED)顯示器、高分子發 光二極體（PLED)顯示器、電致發光（EL)顯示器等），亦可 10 ,201020113 、為非自發光的液晶顯示器（LCD)。各種不同的顯示器則主 要供一負光源或光源，或提供一顯示用的圖案（patterri) 或文子’而各光源的選擇不同’所表現的特性亦不同，而 高分子多層膜則需要根據光源不同與不同的需求來設計。 其中’該高分子聚合物膜片係選自於以下高分子物質 所組成之群組：聚乙烯對苯二甲酸酯（PET)、聚萘二甲酸 乙二酵酯（PEN)、聚甲基丙烯酸曱酯（PMMA)、聚碳酸酯（pc) 以及上述兩種以上之高分子所合成之共聚合物。 較佳的是，該複合多層膜至少在異於顯示器面板之一 表面疊合一表皮層，該表皮層可為具有不同功能（如增硬 (hard coat)、增加霧化效果、調整顏色等）的功能型塗層。 '•亥表皮層主要包括聚酯材料，其係選自於以下高分子 物質所組成之群組：聚乙烯對苯二甲酸酯（pET)、聚萘二 甲酸乙二醇酯（PEN)、聚甲基丙烯酸曱酯（PMMA)、聚碳酸 酯（PC)以及上述兩種以上之高分子所合成之共聚合物該 φ 表皮層之材料與複合多層膜之高分子聚合物膜片材料相同 或相異皆可。 該表皮層内可添加功能型添加劑或助劑（assistant)， 該添加劑或助劑可為抗黃化的紫外光吸收劑、可阻隔紅外 線與具靜電防止功能的錫銻氧化物（ΑΤΟ)、增加均勻擴散 的擴散劑或擴散微粒。該抗黃化的紫外線吸收劑可防止複 合多層膜在經長期太陽光照射後產生材料黃化之現象而 添加錫銻氧化物則可以阻隔紅外線與防止靜電，而擴散劑 及擴散微粒則可使紫外光均勻的分佈照射，本發明亦可以 11 、201020113 . 視需求在搭配在表皮層内部增加一些染料（dyes)或色素 (pigment) ’以與複合多層膜配合而將部分不需要的光線波 段吸收。 該表皮層尚可摻雜透光顆粒，其係熱塑性高分子聚合 物，可選自由聚甲基丙烯酸甲酯（PMIVIA)、聚碳酸酯（pc)、 苯乙烯_曱基丙烯酸甲酯樹脂（MS)、聚苯乙烯（ps)、聚乙 烯對笨二甲酸酯（PET)、聚萘二曱酸乙二醇酯、聚丙 婦（PP)、染料高分子及上述兩種以上物質之混合物所組成 ^ 之群組。 其中’ s亥複合多層膜在顯示器面板之兩側各叠合一表 皮層。 較佳的是’各表皮層之厚度不超過整體複合多層膜厚 度的1/4,表皮層主要以能提供一定的物理支撐力且能維 持多層膜的高穿透率為目的。 較佳的是，該高分子聚合物膜片係經由高分子薄膜拉 . 伸處理所成形者，前述的拉伸處理可為單向拉伸或雙向拉 伸’而延伸處理的目的主要增加不同材料間，沿一特定方 向上的光學折射率差異，延伸處理的製程能增加不同材料 之間的折射率差異，故能降低多層膜膜堆的數量，能節省 材料成本，提高良率，更能提供較佳的光學折射率與光學 穿透或反射率的控制能力。 本發明的複合多層膜設計原理則完全不同於既有偏光 反射片，本發明的複合多層膜主要設置於顯示器的上方， 原'理是利用光線打人此複合多層膜與其干涉產生的穿透或 12 201020113 反射頻譜的設計，與入射光線角度改變造成穿透或反射頻 谱的位移。穿透或反射頻譜的顏色一般而言不會都是全頻 “的會有部分波段穿透或反射，所以顏色一般不會是白 色或透明無色（C0|0「丨ess)，且由於本發明的複合多層膜無 偏光轉換的功能，所以經過本發明複合多層膜的出射光線 的角度會比未經過時變小，因為本發明主要利用頻譜隨角 度變化的原理，將其當成角度的濾光器，故有縮小視角的 功能，達成防窺的功能，此功能與使用方式與前述的偏光 的反射式據光器完全不同。 本發明利用光線經複合多層膜厚的穿透或反射頻譜會 隨著入射角度改變而變化，能將部份大角度的光線反射回 收成為小角度光線再利用’可達到增亮的效果，而且本發 明利用視角的縮減，故可達成防窥的功能，與先前技術中 利用偏光轉換方式增亮的複合光學膜的增光原理與效果完 王不同。再者本發明的複合多層膜本身無偏光轉換問題， 參所以複合多層膜下方的顯示器不需為液晶等需要偏光調製 的專用顯示器，因此本發明的複合多層膜可以用於自發光 之顯示器（如發光二極體（LED)顯示器、有機發光二極體 (OLED)顯不器、高分子發光二極體（pLED)顯示器、電致 發光（EL)顯不器等）’亦可為非自發光的液晶顯示器（LCD) 等等或以上各種光源或其相關光源所組成的點矩陣式顯示 器（dot matrix display)。 本發明亦關於一種包括上述具複合多層膜的顯示器面 板之顯示器。 13 201020113 本發明藉由複合多層膜的設置，能夠讓顯*器所散出 的光線在一特定的入射角時穿透，而大於該特定的入射角 之光線則會反射回顯示器中，因此可達到防窺的效果，而 且光線的能量並不會浪費’反射回顯示器的光線可再經由 一次或數次的反射作用而穿透該複合多層膜，故本發明亦 可提升顯示器的亮度。而利用同樣的原理，#顯示器未發 光時，而光線則係由該複合多層膜的外側射入，此光線大 多係來自太陽或一般照明的全波段白光，此時該複合多層 膜亦可將大於特定入射角的光線反射，使得部份波段的光 線反射，讓觀看者能看到不同顏色的光線，所以能夠達到 讓面板呈現繽紛色彩的裝飾效果。 本發明提供一種具複合多層膜的顯示器面板之製造方 法，其係包括： 提供一預成形之複合多層膜； 將該預成形之複合多層膜熱壓成形於一模具底部中， 預先成型一特定形狀； 將該預先成型之複合多層膜設置於模具中並由射出機 射出’可獲得一預成型且具有複合多層膜之基板； 將此一預成型且具有複合多層膜之基板設置或貼附於 顯示器面板上方’將可獲得該具複合多層膜的顯示器面 板。 較佳的是’該複合多層膜於預成形時亦一體成形有至 少—層表皮層；或者於複合多層膜預成形後，再將至少— 表皮層設置於該複合多層臈的表面。 14 201020113 為了使該複合多屉瞠g 士 1丄、 夕層膜具有可成型特性以更適用於 9 -hfr A. 4r » . * -〜土何证以更迥用於以上 製程，故複合多層膜預成型 , 主&階奴時可進行一延伸處理，V 201020113 - Absorption, thus causing a loss of energy of 1, so the inventors have invented the display panel with the composite multilayer film by understanding the optical properties of the material and after various experiments and efforts. Further, in view of the fact that the substrate forming method is costly and there is a fear of wearing the substrate, a method of forming the composite multilayer film on the display panel has also been invented. An object of the present invention is to provide a display panel having a plurality of optical films having different refractive indices on the surface, so that the display panel can achieve the function of preventing peek when actively emitting light, and Different color angles are used to achieve various decorative effects. Another object of the present invention is to provide a method of forming a composite multilayer film as described above on a display panel at a low cost, easy to stretch, and easy to make a large area. In order to achieve the above object, the display panel with the composite multilayer film of the present invention is provided with a composite multilayer film on the S-hai display panel, and the composite multilayer Φ film comprises at least two layers of polymers having different refractive indices and superimposed on each other. Polymer film. Wherein, when a light source passes through the display panel and passes through the composite multilayer film, the composite multilayer film reduces the viewing angle, and when a light source is incident from the composite multilayer film toward the panel of the display panel, the composite multilayer film reflects differently from different viewing angles. The color of the light. The display can be a self-illuminating display (such as a light-emitting diode (LED) display, an organic light-emitting diode (〇LED) display, a polymer light-emitting diode (PLED) display, an electroluminescence (EL) display, etc. ), also 10, 201020113, is a non-self-illuminating liquid crystal display (LCD). A variety of different displays are mainly used for a negative light source or a light source, or a display pattern (patterri) or a text 'the choice of each light source' is different, and the polymer multilayer film needs to be different depending on the light source. Designed with different needs. Wherein the polymer film is selected from the group consisting of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polymethyl A copolymer of methacrylate (PMMA), polycarbonate (pc), and a polymer of two or more of the above. Preferably, the composite multilayer film has a skin layer laminated on at least one surface of the display panel, and the skin layer may have different functions (such as hard coat, increase atomization effect, color adjustment, etc.). Functional coating. '•Hai skin layer mainly includes polyester material, which is selected from the group consisting of polyethylene terephthalate (pET), polyethylene naphthalate (PEN), a polycomposite methacrylate (PMMA), a polycarbonate (PC), and a copolymer synthesized from the above two or more polymers. The material of the φ skin layer is the same as the polymer film material of the composite multilayer film or Everything is different. A functional additive or adjuvant may be added to the skin layer, and the additive or auxiliary agent may be an anti-yellowing ultraviolet light absorber, an infrared ray blocking agent, and an antistatic function tin bismuth oxide (ΑΤΟ), A diffusing agent or diffusing particles that are uniformly diffused. The anti-yellowing ultraviolet absorber can prevent the composite multilayer film from yellowing after being irradiated by long-term sunlight, and adding tin antimony oxide can block infrared rays and prevent static electricity, and the diffusing agent and the diffusion particles can make ultraviolet light. The light is evenly distributed and the invention can also be used in the present invention. 11 , 201020113 . Add some dyes or pigments in the interior of the skin layer as needed to cooperate with the composite multilayer film to absorb some unwanted light bands. The skin layer may be doped with light-transmitting particles, which are thermoplastic polymer polymers, optionally available as polymethyl methacrylate (PMIVIA), polycarbonate (pc), styrene-methyl methacrylate resin (MS). ), polystyrene (ps), polyethylene to dimethacrylate (PET), polyethylene naphthalate, polypropylene (PP), dye polymer and a mixture of the above two or more ^ Group. The ' s composite multilayer film is superimposed on each side of the display panel. Preferably, the thickness of each skin layer does not exceed 1/4 of the thickness of the overall composite multilayer film, and the skin layer is mainly intended to provide a certain physical support force and to maintain a high transmittance of the multilayer film. Preferably, the polymer polymer film is formed by a polymer film stretching process, and the stretching process may be uniaxial stretching or biaxial stretching, and the purpose of the stretching process is mainly to increase different materials. Between the optical refractive index differences in a specific direction, the process of the extension process can increase the refractive index difference between different materials, so the number of multilayer film stacks can be reduced, material cost can be saved, yield can be improved, and more can be provided. Preferred optical refractive index and optical penetration or reflectivity control capabilities. The composite multilayer film design principle of the present invention is completely different from the existing polarized reflection sheet. The composite multilayer film of the present invention is mainly disposed above the display, and the original principle is to use light to strike the composite multilayer film and interfere with it or 12 201020113 The design of the reflection spectrum, with the change in the angle of the incident ray, causes the displacement of the transmitted or reflected spectrum. The color of the transmitted or reflected spectrum is generally not all-frequency "there will be partial band penetration or reflection, so the color is generally not white or transparent colorless (C0|0 "丨ess"), and due to the present invention The composite multilayer film has the function of non-polarization conversion, so the angle of the outgoing light passing through the composite multilayer film of the present invention becomes smaller than that of the untreated time, because the present invention mainly utilizes the principle that the spectrum changes with angle, and uses it as an angle filter. Therefore, the function of narrowing the angle of view is achieved, and the function of preventing the peek is achieved. This function is completely different from the method of using the polarized reflective illuminator. The present invention utilizes the penetration or reflection spectrum of light through the composite multilayer film thickness. The change of the incident angle changes, and a part of the large-angle light can be reflected and recovered into a small-angle light to be reused to achieve the effect of brightening, and the invention utilizes the reduction of the viewing angle, so that the anti-spying function can be achieved, and the prior art The principle of the addition of the composite optical film brightened by the polarization conversion method is different from that of the effect. The composite multilayer film of the present invention has no polarization conversion problem itself. The display under the composite multilayer film does not need to be a dedicated display that requires polarization modulation such as liquid crystal. Therefore, the composite multilayer film of the present invention can be used for a self-luminous display (such as a light-emitting diode (LED) display, an organic light-emitting diode. (OLED) display, polymer light-emitting diode (pLED) display, electroluminescence (EL) display, etc.) may also be non-self-luminous liquid crystal display (LCD), etc. or various light sources or A dot matrix display composed of related light sources. The present invention also relates to a display comprising the above display panel with a composite multilayer film. 13 201020113 The present invention enables a display device by means of a composite multilayer film. The emitted light penetrates at a specific angle of incidence, and the light larger than the specific angle of incidence is reflected back into the display, so that the anti-peep effect can be achieved, and the energy of the light is not wasted 'reflected back to the display The light can be penetrated through the composite multilayer film by one or several reflections, so the invention can also increase the brightness of the display. The principle, #display does not emit light, and the light is incident from the outside of the composite multilayer film, the light is mostly from the sun or general illumination of the full-band white light, at this time the composite multilayer film can also be greater than a specific angle of incidence The light reflection reflects the light of the partial band, so that the viewer can see the light of different colors, so that the panel can display the decorative effect of the colorful color. The invention provides a manufacturing method of the display panel with the composite multilayer film, The method comprises: providing a pre-formed composite multilayer film; thermoforming the pre-formed composite multilayer film into a mold bottom, pre-forming a specific shape; placing the pre-formed composite multilayer film in the mold and The injection machine emits a substrate that is pre-formed and has a composite multilayer film; the preformed and substrate having the composite multilayer film is disposed or attached to the display panel' to provide the display panel with the composite multilayer film. Preferably, the composite multilayer film is integrally formed with at least a skin layer during preforming; or after the composite film is preformed, at least a skin layer is disposed on the surface of the composite multilayer. 14 201020113 In order to make the composite multi-drawer 瞠 丄 丄 丄 丄 夕 具有 具有 夕 夕 夕 夕 夕 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 Membrane preforming, an extension process for the main &
該複合多層媒於延伸處理之接亦、仓X 呷蜒理之後可進入一冷卻區（cooling e，例如進行一冷卻溫度在60。(：至12crc之間，且該The composite multi-layer medium can enter a cooling zone after the extension processing and the chamber X processing, for example, a cooling temperature is between 60. (: to 12crc, and the
冷部時間為1 i 5秒間之冷卻步驟後再進行熱處裡（HW setting) ’使該多層膜且右赫社从#名丨丨 尽联具有較佳的成型性。其為上述之多層 膜在進行不同的延伸贺藉1% > 、 、听表％參數後的複合多層膜特性及成型The cold portion time is a cooling step between 1 i and 5 seconds, and then the hot portion (HW setting) is used to make the multilayer film and the right hehe body have better moldability from the #名丨丨. It is the composite multilayer film characteristics and molding after the above-mentioned multilayer film is subjected to different extensions by 1% >
性，其中複合多層膜之特徵在於： 1、該複合多層膜在15(rc之機械軸方向（md)熱縮 }·生（shrinkage)與橫軸方向（TD)熱縮性之比值介於〇·8 與1.2之間。此複合多層膜特徵即為成型性的重要指標， 藉由本發明所提出的製程可以將複合多層膜在機械軸方向 與橫軸方向的熱縮性之比值控制於〇.8與12之間，亦即 在兩個方向上的熱縮性相當接近，使得該膜層在經過熱成 型步驟，如高溫高壓的射出成型後，在兩個方向上的尺寸 不會產生太大的變異，換句話說，當該膜層在射出成型後， 在機械軸方向與橫軸方向具有相當接近的尺寸，如此即可 大幅提高該膜層的可成型性質。 射出成型中使用作為支撑複合多層膜之基板的塑膠 料，其可為聚碳酸脂（PC )、聚丙稀（p0lypr〇pylene，pp)、 PS塑膠（p0|ystyrene’ Ps)、聚曱基丙烯酸甲酯（pMMA)、 MS 塑膠（Methylmethacrylate styrene)、丙烯青 丁二烯 苯乙烯（ABS)、聚對苯二曱酸乙二醇酯（PET )、聚縮 越塑膠（Polyoxymethylene，POM )、尼龍（Nylon )等 15 201020113The composite multilayer film is characterized in that: 1. The composite multilayer film has a ratio of heat shrinkage between 15 (rc mechanical axis direction (md) heat shrinkage} and shrinkage direction to horizontal axis direction (TD). Between 8 and 1.2. The composite multilayer film is an important index of formability, and the ratio of heat shrinkage of the composite multilayer film in the direction of the mechanical axis to the horizontal axis can be controlled by the process proposed by the present invention. The heat shrinkage between 8 and 12, that is, in both directions, is quite close, so that the size of the film in both directions does not increase too much after the thermoforming step, such as high temperature and high pressure injection molding. The variation, in other words, when the film is injection-molded, has a relatively close dimension in the direction of the machine axis and the direction of the horizontal axis, so that the formability of the film layer can be greatly improved. It is used as a support composite in injection molding. The plastic material of the substrate of the multilayer film, which may be polycarbonate (PC), polypropylene (p0lypr〇pylene, pp), PS plastic (p0|ystyrene' Ps), polymethyl methacrylate (pMMA), MS plastic (Methylmethacrylate styrene), Alkenyl green butadiene styrene (ABS), polyethylene glycol esters of terephthalic acid Yue (PET), the polycondensation plastics (Polyoxymethylene, POM), nylon (Nylon), etc. 15201020113
特定形狀之基板後，再將 ’將可獲得該具複合多層 將具有複合多層膜貼附於一裝 之設置或貼附於顯示器面板上方， 膜的顯示器面板。 該複合多層膜於預成形時亦一體成形有至 較佳的是， ® 少一層表皮層；或者於複合多層膜預成形後，再將至少一 表皮層設置於該複合多層膜的表面。 本發明再提供又一種具複合多層膜的顯示器面板之製 造方法，其係包括： 提供一共押出製程製作之複合多層膜與基板； 將此共押出後具有複合多層膜與基板貼附設置或貼附 於顯示器面板上方，將可獲得該具複合多層膜的顯示器面 較佳的是，該複合多層膜於預成形時亦一體成形有至 少一層表皮層；或者於複合多層膜預成形後，再將至少一 表皮層設置於該複合多層膜的表面。 於上述共押出製程的製造方法中，複合多層膜與基板 兩者在共押出製程之後已經完全一體成型，故不需要製造 方法一中需額外貼合製程將兩者貼附，亦不需製造方法一 中’使用射出方式將複合多層膜與基材兩者貼附一體成 16 201020113 以上三種製作方式中，其主 設置於顯示面板之上，而輔以基板來^為將複合多層膜 供一平面或弧度的造型。唯製造方 複合夕層膜並提 可以隨模具的設計不同，可以製作較有材 本體，其形狀變化的自由度較高。而 則適合較平面的基材支撑。 的方式 再者，以上三種製程中，皆 爯於1志了於製作複合多層膜後 再於其表皮層上再貼附一表皮保 算石f许妒材質可為類似P_A 等更度較南的材料，主要目的為可 徂一旳為可保濩複合多層膜，能提 供一同硬度’抗刮傷的功能。 本發明又關於以上述方法所制士、 法：所製成之具複合多層膜的顯 不器面板^。 ▲因此，利用本發明所提供之方法並不會造成面板損 壞’而且本發明所需耗費的成本低、製造時間短，所以非 常具有產業上的利用性，另夕卜由於複合多層膜的易延展 ，’所以製作面積大，製程速度極快，成本極低，材料簡 單大量量I纟無，亏染與環保的問題，且能约適用於各種 面板之上。 【實施方式】 •月參看第一及二圖所示，本發明具複合多層膜的顯示 器，於本實施例中係一 LCD顯示器，其係包括： 一背光模組（1〇)，其具有複數設置於一反光板（11)中 的LED光源（12)，該等LED光源（12)可排列出圖形或文字， 而該背光模組（1〇)頂部另設有導光板、擴散膜、增亮骐等 17 201020113 一般LCD顯示器所具有之元件； 一顯示器面板（20)，其係一 LCD面板，設置於該背光 模組（10)的頂面，並讓LED光源2)朝其射出光線； 一複合多層膜（30)，其係設置於該顯示器面板（2〇)上， 而該複合多層膜（30)至少包括二層具有不同折射率且相互 疊和的高分子聚合物膜片（31，32)。 由第二圖可知，在一特定入射角以下的小角度光線（41) 可以穿透過該複合多層膜（30)，而大於該特定入射角的大 角度光線（42)則會反射回該反光板（1彳），並經過該反光板 (11)再次反射之後’若角度小於該特定入射角，則可穿過 該複合多層膜（30)。 本發明係利用光學干涉膜的原理，而在面板上設置複 合多層膜，藉由不同折射率的高分子聚合物膜片，調整光 線僅能在一特定角度通過，本發明並未限制高分子聚合物 膜片的折射率以及厚度，其係因為於所屬技術領域中具有 鲁通ΐ知識者皆能依照所需的角度以及欲通過之光線波長來 調整高分子聚合物膜片的厚度、波長以及數量，因此，只 要不脫離本發明之原理而做的各種變化’皆屬於本發明之 範嘴。 下為本發明所提供一種具複合多層膜的顯示器面板 之製造方法’其係本發明之最佳實施例，包括： 提供—預成形的複合多層膜，請合併參考美國第 3:773^882號專利所提供之方法其係將至少二不同折射 率的南分子聚合物膜片以及對應設置該高分子聚合物膜片 18 201020113 至少一外表面的表皮層材料於藉由分流器（feedblock)分炉After the substrate of a particular shape, the composite panel having the composite multilayer is attached to a display panel that is attached to or attached to the display panel. The composite multilayer film is also integrally formed at the time of preforming, preferably, a layer of the skin layer is less; or after the composite multilayer film is preformed, at least one skin layer is disposed on the surface of the composite multilayer film. The present invention further provides a method for manufacturing a display panel having a composite multilayer film, comprising: providing a composite multilayer film and a substrate produced by a co-extrusion process; and having the composite multilayer film and the substrate attached or attached Preferably, the display surface having the composite multilayer film is obtained above the display panel, and the composite multilayer film is integrally formed with at least one skin layer during preforming; or after the composite multilayer film is preformed, at least A skin layer is disposed on the surface of the composite multilayer film. In the manufacturing method of the above-mentioned co-extrusion process, the composite multilayer film and the substrate are completely integrally formed after the co-extrusion process, so that no additional bonding process is required in the manufacturing method, and the two are attached, and the manufacturing method is not required. In the first one, the composite multilayer film and the substrate are attached to each other by using an injection method. 16 201020113 In the above three production methods, the main layer is disposed on the display panel, and the substrate is used to provide a composite multilayer film for a plane. Or the shape of the arc. Only the manufacturing side compound film can be made differently from the design of the mold, and the body can be made with a higher degree of freedom in shape change. It is suitable for a relatively flat substrate support. In addition, in the above three processes, all of them are used in the production of composite multilayer films and then attached to the skin layer with a skin-preserving stone. The material of Xu can be more similar to P_A. The main purpose of the material is to provide a composite multilayer film that can provide a 'hard scratch resistance'. The present invention is also directed to a display panel having a composite multilayer film produced by the above method. ▲ Therefore, the method provided by the present invention does not cause panel damage' and the invention requires low cost and short manufacturing time, so it is very industrially useful, and the composite multilayer film is easily extended. , 'So the production area is large, the process speed is extremely fast, the cost is extremely low, the material is simple and large, the quantity is small, the problem of loss of dyeing and environmental protection, and it can be applied to various panels. [Embodiment] As shown in the first and second figures, the display with a composite multilayer film of the present invention is an LCD display in the embodiment, which includes: a backlight module (1〇) having a plurality of An LED light source (12) disposed in a reflector (11), wherein the LED light source (12) can be arranged with a pattern or a text, and the backlight module (1〇) is further provided with a light guide plate, a diffusion film, and an increase亮骐等17 201020113 The components of a general LCD display; a display panel (20), which is an LCD panel, is disposed on the top surface of the backlight module (10), and allows the LED light source 2) to emit light toward it; A composite multilayer film (30) disposed on the display panel (2), and the composite multilayer film (30) includes at least two polymer film sheets having different refractive indices and superposed on each other (31) , 32). As can be seen from the second figure, a small angle of light (41) below a certain angle of incidence can penetrate the composite multilayer film (30), and a large angle of light (42) greater than the particular angle of incidence is reflected back to the reflector. (1彳), and after being reflected again by the reflector (11), 'If the angle is smaller than the specific incident angle, the composite multilayer film (30) can be passed through. The invention utilizes the principle of an optical interference film, and a composite multilayer film is disposed on the panel, and the high-polymer polymer film with different refractive indexes can adjust the light to pass only at a specific angle, and the invention does not limit the polymer polymerization. The refractive index and thickness of the film are due to the fact that those skilled in the art can adjust the thickness, wavelength and quantity of the polymer film according to the required angle and the wavelength of the light to be passed. Therefore, various changes may be made without departing from the principles of the invention. The present invention provides a method for fabricating a display panel having a composite multilayer film, which is a preferred embodiment of the present invention, comprising: providing a pre-formed composite multilayer film, please refer to US Pat. No. 3:773^882 The method provided by the patent is to divide at least two different refractive index of the south molecular polymer film and the skin layer material corresponding to at least one outer surface of the polymer polymer film 18 201020113 by a feedblock.
後，再由押出機J£柿ψ e "L 機”押出而侍到具有表皮層之高分子聚合物 膜片再將其經由拉伸製程（sUetch)調整高分子聚合物膜 ^的厚度，並讓該等高分子聚合物膜片達到折射率配向的 >丈果進而達到所欲達成的折射、反射效果； 將該預成形之複合多層膜熱壓成形於一模具底部中， 預先成型一特定形狀，預先成型之複合多層膜成型有二：真 =成型或同壓成型’兩者皆需預先以紅外線 ❹材之丁9點以上，PET、Tg點介於75儀心之4 點’丨於39〜150 C，PMMA之Tg點介於1〇〇〜12(TC ’成型 機IR供烤溫度約為25〇t~35(rc，左右，最佳製程參數 仍需視模具及機台而定，烘烤時間則配合丨R溫度及塑材 厚度進行調整，一般介於1〇 sec〜12〇 sec，成型壓力介於 30 150巴（bar)’上膜溫度6〇〜11〇ac，下膜溫度7〇〜I?。 °C ； 瞻將該預先成型之複合多層膜設置於模具中並使該預成 型複合多層膜與基板藉由射出成形技術黏合，其溫度則需 視塑料而疋，一般介於2〇〇〜350°C，即可獲得一預成型且 具有複合多層膜之基板； 將此一預成型且具有複合多層膜之基板設置或貼附於 顯示器面板上方，將可獲得該具複合多層膜的顯示器面 板。 除了本發明所提供之製造方法外，本發明所述的複合 多層膜亦可藉由貼合的方式貼附於顯示器面板的表面，但 19 201020113 此方法會使得複合多層膜與顯示器面板表面之間可能貼附 不平整，不僅不美觀，還有可能使得該複合多層膜的效果 降低。 實施例： 以下所提供之實施例僅係用來示範本發明，以讓所屬 技術領域中具有通常知識者能夠據以實施本發明，因此並 未意欲限制本發明之範疇，任何在本發明之概念及原則下 所作的修改，仍皆屬於本發明之範嘴。 比較例： 將pc材質之高分子聚合物膜片、PEN材質與pMMA 材質及PM ΜΑ之表膜以共押出方法製作三百零四層的1〇5〇 厚之塑膠多層膜，其巾ΡΜΜΑ2表膜的厚度為4〇"m， PC材質之咼分子聚合物膜片的厚度為75〇em，而此比較 φ 例所使用之表膜係使用改質過的PMMA材料，在經由上述 的拉伸配向之後，其硬度可至少為2H，以有效提升保護之 功效。第十圖以及附件四則顯示上述製品之反射頻譜圖， 其反射波段落於可見光區，因此在正視角時（零度）係呈 現全反射之鏡面外觀，而隨著視角變小，反射波段會往短 波段偏移，故例如視角為6〇度時，該製品有偏淡藍色的 色彩表現。 20 201020113 實施例1.Then, the extruder J is made out of the polymer film of the skin layer and then adjusted to the thickness of the polymer film by a stretching process (sUetch). And allowing the polymer polymer film to reach the refractive index alignment to achieve the desired refraction and reflection effect; and molding the pre-formed composite multilayer film into a mold bottom, pre-forming one For a specific shape, the pre-formed composite multilayer film has two moldings: true = molding or co-molding. Both need to be in advance with infrared enamel material at 9 or more points, and PET and Tg points are at 4 points of 75 ceremonies. At 39~150 C, the Tg point of PMMA is between 1〇〇~12 (TC' molding machine IR supply temperature is about 25〇t~35 (rc, left and right, the best process parameters still need to be based on mold and machine) The baking time is adjusted according to the 丨R temperature and the thickness of the plastic material, generally between 1〇sec and 12〇sec, and the molding pressure is between 30 and 150 bar(bar). The film temperature is 6〇~11〇ac, The film temperature is 7〇~I?°C; the pre-formed composite multilayer film is placed in the mold and the preform is The composite multilayer film and the substrate are bonded by an injection molding technique, and the temperature thereof is determined by plastic, generally between 2 〇〇 and 350 ° C, to obtain a preformed substrate having a composite multilayer film; The display panel with the composite multilayer film can be obtained by pre-forming and having a substrate with a composite multilayer film disposed above the display panel. In addition to the manufacturing method provided by the present invention, the composite multilayer film of the present invention can also be used. Attached to the surface of the display panel by means of lamination, but 19 201020113 This method may cause unevenness between the composite multilayer film and the surface of the display panel, which is not only unsightly, but may also make the effect of the composite multilayer film The following examples are provided to illustrate the invention so that those skilled in the art can practice the invention, and thus are not intended to limit the scope of the invention, any The changes made under the concept and principle are still in the mouth of the invention. Comparative example: polymer material diaphragm made of pc material PEN material and pMMA material and PM ΜΑ film are made by co-extrusion method to make three hundred and four layers of 1 〇 5 〇 thick plastic multilayer film, the thickness of the ΡΜΜΑ 2 film is 4 〇 " m, PC material 咼The molecular polymer film has a thickness of 75 〇em, and the film used in the φ example is a modified PMMA material, and the hardness can be at least 2H after the above-mentioned stretching alignment, thereby effectively improving The effect of protection. The tenth figure and the fourth part show the reflection spectrum of the above product, and the reflection wave is in the visible light region, so when it is a positive angle of view (zero degree), it shows the mirror appearance of total reflection, and as the angle of view becomes smaller, the reflection The band will shift to a short band, so for example, when the viewing angle is 6 degrees, the product has a pale blue color. 20 201020113 Example 1.
先提供-pc#質之高分子聚合物臈片再貼合一以 多層膜片組成的多層膜於該高分子聚合物膜片的上表面。 2此步驟中，係以^感壓膠將多層膜貼合於pc材質之高 分子聚合物臈片，其中該多層膜係為三百零二層之PEN: 質及PMMA„交錯疊合且經由共押出方法所形成複合多 層膜’該複合多層膜的厚度為26〇微米（㈣）。而該多 層膜再經由雙軸之延伸，其甲可以用逐次雙軸延伸縱向_) 延伸2·8倍，橫向（TD)延伸3 5倍，也可以用同時雙抽延伸 縱向與橫向延伸3.〇倍，而延伸後之pEN膜層與pmma 膜層的折射率差約$ Q26，且兩膜層在押出的厚度比為 1/1:165，故在厚度有梯度變化，其最後複合多層膜的反射 頻譜為第九圖以及附件三所示。 本實施例中將PMMA之表皮保護層貼合於該多層膜的表 皮層上表面，該PM Μ A之表皮保護層為一高硬度的材質以 提供較佳的保護功能，本實施例採用改質過的pMMA材 料，在經由上述的拉伸配向之後，其硬度可至少為2H，以 有效提升保護之功效。接著再將以貼附pMMA的複合多層 膜放入特定模具中熱壓預成型。最後再將之放置於模具 中，並以PC為塑料由射出機中射出成型，使複合多層膜 與特定形狀的PC基板結合為一體。 應用成# 將上述複合多層膜應用於一由LED背光光源所構成的 21 201020113 LCD顯不器外側，其正視角顯示出特定白色圖案，當以侧 視角觀看時顏色將會漸變成黃色，當LED背光光源無發光 時，則無法看到顯示器面板的内容，而當外界光照射於該 複合多層膜時’為其所反射的反射光將可呈現鏡面效果， 且隨不同視角使得鏡面的顏色由白色變成淺藍色，當開啟 LCD背光光源時，LED所發出大視角光線將被反射回收利 用，經一再的反射即成為小角度光線而穿透，本頻譜的顏 色隨角度而變化，於特定角度外，某些原本可穿過或反射 ® 的顏色已經完全被戴止或穿透，複合多層膜的顏色設計可 以搭配特定的彩色濾光片（col〇r fnter)的頻譜，將可以調製 出所需要的顏色。搭配彩色濾光片的頻譜，可以將特定角 度之外的光線載止（cut-off)，尤其搭配i_ED等近單色光， 可以達成更佳的顏色截止或穿透功能，所以僅有小視角的 光線被觀看，過大的角度的光線將會被反射截止，大部分 大角度的光線將無法穿透，或產生顏色的偏差，達成特定 角度的防窺的功能。故本發明能達到防窺與鏡面裝飾的雙 _重用途。 實施例2. 盤作方式 本實施例中係利用三百四十八層之PMMA材質及共聚 萘二·甲酸乙二醇酯（CO-PEN)材質交錯疊合且經由共押出方 法形成230//m之多層膜，該多層膜更經由雙軸之延伸， 其中逐次雙轴延伸縱向延伸3.0倍，橫向延伸37位 、 带，也可 22 201020113 以同時雙軸延伸3.2倍，同時將保護作用之pMMA表皮保 濩層膜貼合於該多層膜之上。之後進行熱壓成型，並以 PMMA材料射出為多層膜之基材後，將之設置於jo或 OLED等的點矩陣式顯示器之上，以完成最終製品。 應用成被 將上述複合多層膜應用於一由LED或OLED光源矩陣 所構成的點矩陣式顯示螢幕（dot matrix led display)，螢幕 •顯示出特定顏色的特定圖案’正視角顯示出特定白色圖 案，側視角觀看時顏色將會逐漸變成藍色，外界光昭射h〇f 時的反射光源將可呈現鏡面效果，且隨不同視角時鏡面的 顏色會由白色變成淺藍色，開啟LCD，f光源所發出大視 角光線將被反射回收利用成小角度光線而發射，兼具防窺 與鏡面裝飾用途。 【圖式簡單說明】 第一圖係本發明之立體分解示意圖。 _ 第二圖係本發明之示意圖。 第二圖係一般干涉膜之示意圖。 第四圖係顯示利用AB冑層膜片對於白光之波長與反 射率之關係圖。 第五圖係顯示利用ABC三層膜片對於白光之波長與反 射率之關係圖。 =六圖係具有複合光學膜之背光模組的示意圖。 弟七圖係顯示膜片對於能量強度的關係圖。 第八圖係光學膜對於不同角度的入射光之穿透率的關 23 201020113 係圖。 第九圖係本發明實施例一中複合多層 ^ $猓的反射頻譜。 第十圖係比較例中製品的反射頻譜圖。 【附件簡單說明】 附件一係對應於第七圖且以彩色線條表現的曲線圖。 附件二係對應於第八圖1以彩色線條表現的曲線圖。 附件三係對應於第九圖ι以彩色線條表現的曲線圖。First, a high-polymer polymer sheet of -pc# is provided, and a multilayer film composed of a multilayer film is attached to the upper surface of the polymer film. 2 In this step, the multi-layer film is bonded to a polymer material slab of pc material by a pressure sensitive adhesive, wherein the multilayer film is a 300-layer PEN: quality and PMMA „interlaced and The composite multilayer film formed by the co-extrusion method has a thickness of 26 〇 micrometers ((4)), and the multilayer film is extended by a biaxial axis, and the nail can be extended by 2.8 times with a sequential biaxial stretching longitudinal _) The lateral direction (TD) is extended by 35 times, and the longitudinal extension and the lateral extension of the double-extraction extension may be extended by 3.〇 times, and the refractive index difference between the extended pEN film layer and the pmma film layer is about $ Q26, and the two film layers are The thickness ratio of the extrusion is 1/1:165, so there is a gradient change in the thickness, and the reflection spectrum of the final composite multilayer film is shown in the ninth figure and the annex 3. In this embodiment, the skin protective layer of PMMA is attached to the same. The upper surface of the skin layer of the multilayer film, the skin protective layer of the PM Μ A is a high hardness material to provide a better protection function. In this embodiment, the modified pMMA material is used, after the above-mentioned stretching alignment, Its hardness can be at least 2H to effectively enhance the protection effect. The composite multilayer film to which pMMA is attached is placed in a specific mold by hot pressing preforming. Finally, it is placed in a mold and injection molded from an injection machine using PC as a plastic to form a composite multilayer film and a PC substrate of a specific shape. The composite multilayer film is applied to an outer side of the 21 201020113 LCD display which is composed of an LED backlight source, and the positive viewing angle displays a specific white pattern, and the color will be changed when viewed from the side viewing angle. Yellow, when the LED backlight source is not illuminated, the content of the display panel cannot be seen, and when external light is irradiated on the composite multilayer film, the reflected light reflected by it will have a mirror effect, and the mirror surface will be different with different viewing angles. The color changes from white to light blue. When the LCD backlight source is turned on, the large-view light emitted by the LED will be reflected and recycled. After repeated reflection, it will become a small angle of light and penetrate, and the color of the spectrum changes with the angle. In addition to certain angles, some colors that can pass or reflect ® have been completely worn or penetrated. The color design of the composite multilayer film can be matched. The spectrum of the fixed color filter (col〇r fnter) will modulate the desired color. With the spectrum of the color filter, the light outside the specific angle can be cut-off, especially with i_ED. When the near-monochromatic light is used, a better color cut-off or penetration function can be achieved, so that only a small angle of view light is viewed, and an excessively large angle of light will be reflected off, and most of the large-angle light will not be penetrated. Or the deviation of the color is generated to achieve the anti-peep function of the specific angle. Therefore, the present invention can achieve the dual-heavy use of the anti-peep and the mirror decoration. Embodiment 2. The disk operation method uses three hundred and forty-eight layers in this embodiment. The PMMA material and the copolymerized naphthalene dicarboxylate (CO-PEN) material are alternately laminated and form a multilayer film of 230//m by a co-extrusion method, and the multilayer film is further extended by a biaxial, wherein successive double axes The extension extends 3.0 times in the longitudinal direction, 37 points in the lateral direction, and the belt can also be extended to 3.2 times in the simultaneous biaxial direction at the same time, and the protective pMMA skin protective layer film is adhered to the multilayer film. Thereafter, it is subjected to hot press forming, and after PMMA material is ejected as a substrate of the multilayer film, it is placed on a dot matrix display such as jo or OLED to complete the final product. The composite multilayer film is applied to a dot matrix led display composed of a matrix of LED or OLED light sources, and the screen displays a specific pattern of a specific color to display a specific white pattern. When viewed from the side angle, the color will gradually turn blue. When the external light is reflected, the reflected light source will have a mirror effect, and the color of the mirror will change from white to light blue with different viewing angles, and the LCD will be turned on. The large-angle view light will be reflected and recycled into small-angle light to be emitted, which is both anti-peep and mirror-decorated. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a perspective exploded view of the present invention. The second figure is a schematic diagram of the invention. The second figure is a schematic diagram of a general interference film. The fourth graph shows the relationship between the wavelength of the white light and the reflectance using the AB 胄 film. The fifth graph shows the relationship between the wavelength of the white light and the reflectance using the ABC three-layer film. = Six figures are schematic diagrams of a backlight module with a composite optical film. The seven figures show the relationship of the diaphragm to the energy intensity. Figure 8 is a diagram of the penetration of optical films for incident light at different angles. 23 201020113 Figure. The ninth figure is a reflection spectrum of the composite multilayer ^ 猓 in the first embodiment of the present invention. The tenth graph is a reflection spectrum of the article in the comparative example. [A brief description of the attachment] Attachment 1 is a graph corresponding to the seventh figure and represented by colored lines. Annex II is a graph corresponding to the color line in Figure 8 of Figure 8. The attachment three corresponds to the graph represented by the color line in the ninth figure.
附件四係對應於第十圖且以彩色線條表現的曲線圖。 【主要元件符號說明】 (1 〇)背光模組 (12) LED 光源 (3 0)複合多層膜 (41)小角度光線 (50)光學干涉膜 (61)反射板 (63)複合光學膜 (1 1)反光板 (20)顯示器面板 (31)(32)高分子聚合物膜片 (42)大角度光線 (51)(52)膜片 (62)光源 24Annex IV is a graph corresponding to the tenth figure and represented by colored lines. [Main component symbol description] (1 〇) backlight module (12) LED light source (30) composite multilayer film (41) small angle light (50) optical interference film (61) reflector (63) composite optical film (1) 1) Reflector (20) Display panel (31) (32) Polymer film (42) Large angle light (51) (52) Diaphragm (62) Light source 24
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478187A (en) * | 2010-11-24 | 2012-05-30 | 宏腾光电股份有限公司 | Display backlight module and manufacturing method thereof |
| CN102537767A (en) * | 2010-12-31 | 2012-07-04 | 宏腾光电股份有限公司 | Display backlight module with multilayer multilayer film reflection sheet and manufacturing method thereof |
| TWI447425B (en) * | 2011-07-01 | 2014-08-01 | Extend Optronics Corp | Vehicle display mirror and method of manufacturing the same |
| TWI458131B (en) * | 2011-06-27 | 2014-10-21 | Lextar Electronics Corp | Semiconductor light-emitting element |
| TWI467777B (en) * | 2012-06-06 | 2015-01-01 | 原相科技股份有限公司 | Optical device package structure |
| TWI512345B (en) * | 2012-09-04 | 2015-12-11 | Psk Inc | Apparatus and method for manufacturing light guiding plate |
| CN108192518A (en) * | 2018-02-02 | 2018-06-22 | 东莞市纳利光学材料有限公司 | Peep-proof film |
| TWI718739B (en) * | 2019-10-31 | 2021-02-11 | 恆顥科技股份有限公司 | Optical assembly |
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2008
- 2008-11-21 TW TW97145029A patent/TW201020113A/en not_active IP Right Cessation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478187A (en) * | 2010-11-24 | 2012-05-30 | 宏腾光电股份有限公司 | Display backlight module and manufacturing method thereof |
| CN102537767A (en) * | 2010-12-31 | 2012-07-04 | 宏腾光电股份有限公司 | Display backlight module with multilayer multilayer film reflection sheet and manufacturing method thereof |
| TWI458131B (en) * | 2011-06-27 | 2014-10-21 | Lextar Electronics Corp | Semiconductor light-emitting element |
| TWI447425B (en) * | 2011-07-01 | 2014-08-01 | Extend Optronics Corp | Vehicle display mirror and method of manufacturing the same |
| TWI467777B (en) * | 2012-06-06 | 2015-01-01 | 原相科技股份有限公司 | Optical device package structure |
| US9599745B2 (en) | 2012-06-06 | 2017-03-21 | Pixart Imaging Incorporation | Package structure of optical apparatus |
| TWI512345B (en) * | 2012-09-04 | 2015-12-11 | Psk Inc | Apparatus and method for manufacturing light guiding plate |
| US9477031B2 (en) | 2012-09-04 | 2016-10-25 | Psk Inc. | Apparatus and method for manufacturing light guiding plate |
| CN108192518A (en) * | 2018-02-02 | 2018-06-22 | 东莞市纳利光学材料有限公司 | Peep-proof film |
| TWI718739B (en) * | 2019-10-31 | 2021-02-11 | 恆顥科技股份有限公司 | Optical assembly |
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| TWI341251B (en) | 2011-05-01 |
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