1302989 九、發明說明： 【發明所屬之技術領域】 • 本發明係關於一種能克服光學缺點之光學薄膜。 【先前技術】 習知之光學薄膜為增加其亮度，常將兩片光學薄膜以互呈正 交的方向加以疊合，但兩片光學薄膜或相互接觸或極為靠近，會 _ 產生消光搞合(wet-out)及莫爾邊紋(MoirS fringe)等光學缺點，劣 化光學薄膜之品質，故已有許多習知之方法用來改進或克服這歧 光學缺點。 • 其中，美國專利5,771，328號即揭示一光學薄膜，其中含有較 高之稜鏡單元設於較低稜鏡單元之側，當兩片光學薄膜貼近時， 車父南之稜鏡單TL細接另>{光學薄膜，如此可崎低兩片薄膜疊 Φ 合時之消光麵合現象’但隱約中’仍可目視到較高稜鏡之稜鏡 線，瑕疵難免，美中不足。 亦有使用擴散膜或擴散層（diffUser)來「掩飾」這些光學缺點， 例如於光學薄膜之一面或兩面上加工製作擴散層。但如此一來， - 卻造成光線之散射(sc咖：），降低了軸向增益(gain)，而無法增加 • 輝(亮)度，亦現其缺點。 本案發明人㈣於此’乃加研究鑛，揭示出本發明新賴之 5 1302989. 能克服光學缺點之光學薄膜。 【發明内容】 本發明之目的旨在提供一種能克服光學缺點（optical defects)之光學薄膜，係包括：一透明基層；一結構層 (structured layer)連設於該透明基層上，係由多數集光單元 (light-concentrating units)例如稜鏡單元並列構成於該基層 之上；以及多數導光小單元（Hght—directing tiny elemen1：s) 連設於該集光單元之頂峰線(peak line)上或連設於該集光單元 之表面或稜鏡面上，由是構成一光學薄膜能克服消光(wet—〇ut) 耦合、莫爾邊紋(Moir6 fringe)等光學缺點，而能增進該光學薄 膜之集光與擴散雙重作用，進而協同地增益其輝度（亮度)與光均 勻度者。 本發明之可取實體，可由以下說明書配合賴諸圖式而得以 明晰之。 【實施方式】 參閱第1圖，本發明光學薄膜係包括··一透明基層（1); 一結 構層⑵連設於縣層⑴上，係由乡數集光單元⑶例如棱鏡單 元並列、連設於該基層⑴上，以構成該結構層⑵；以及多數導 光小單元(4)連設於該集光單元(3)之頂峰線(33)上，由是構成一 1302989 光學薄膜者。 • 雜縣層⑴可製自麵黯脂，包括：紅騎笨二酸醋 (PET)，聚碳酸酯(PC)等。 該結構層(2)係由稜鏡單元(3)構成，亦可定義為稜鏡層或棱鏡 陣列(prism array)層；樣稜鏡單元(3)外，其他種類能有集光作 用之單元亦可提供來構賴結構層(2)者，本發未加以限制。 # 該集光單元⑶如第1圖所示者係一稜鏡單元(3)包括兩稜鏡面 (31，32)向上漸斜、交合成一頂峰線(33)者。 • 該等導光小單元(4)即連設於該頂峰線(33)上，各導光小單元(4) 之縱向軸心線(Y)宜呈垂直方向之走向者。 該集光單元⑶與該導光小單元(4)可一體成型或模製成型或 壓印(imprint)於該基層⑴之上；係可製自感光型或光硬化型樹脂 或熱固型樹脂，包括UV硬化型樹脂或UV膠者。 # 當然’其他材料亦可加選擇應用之，本發明並未加以限制。 各孩V光]、單元(4)可王角錐(pyj^mid)含三面、四面體及多面 體；圓錐(_);弧形或圓拱形突部；小稜鏡形或小凸透鏡形等 造型，本發明亦未加以限制。 相鄰兩導光小單元(4)之間距宜介於25〜3_m㈤；各導光小 單TC(4)之南度宜為0·5/ζηι〜2· ，·而連設有導光小單元⑷之兩 頂峰線(33)之間雜未加關，但仍則、於者為宜；當 1302989 然，本發·未加以限制相關元件之大小、高低、間距、形狀、 分佈、排列等等。 首如第1圖所不者’並非每—稜鏡單元⑶之魏細)均設有 導光】、單7L(4) ’其中設有導光小單元⑷之稜鏡單元⑺其高度乃 雨於未設有導光小單元⑶之稜鏡單元，如此—來，當兩片光學薄 _互疊合明其亮度時’設有導以、單元(4)之較高稜鏡單元⑶ 會先以點接觸另片光學薄膜，由是可以避免或降低消光(树捕） 耦合及莫爾邊紋(Moir0 fringe)等劣象。 而汉有小單元(4)之頂峰線(33)本身亦由頂峰線(33)之皇減 v、細短、間斷為該等小單元⑷之驻，故相鄰兩片絲薄膜原由 目視所及之頂峰線(33)之麵亦可舰或減至最*，由是遂大大 克服了習知光學薄膜之殊多光學缺點(optical defects)。 上述各邊導光小單元(4，light-directing tiny element)呈現在各 木光單元或稜鏡單元(4)之上，向上逝斜(taper)，由各稜鏡單元(3) 射入各導光小單元(4)之内，會因漸縮之小單元之導光作用，而窄 化光輸出角度’增益軸向之集光(light_c〇ncentrating)效用，藉此 增加光學薄膜之亮度或輝度者。 本發明亦可修飾成第2圖所示之實施例，其中可於兩較高集 光單元(3)之間，夾設較低之集光單元(3a)，而該等導光小單元(4) 則連設於較高集光(稜鏡)單元(3)之頂峰線(33)上。 8 1302989 如第3 ®所示者，各集光單元(3)之頂峰線⑼上均分別連設 ' 有鱗導光小單元(4) ’彼亦構成為本發明之又—可取實施例。 m如第4 ®所讀，各該集光單元⑶之頂峰線⑺)係高低起 伏亦即々著各頂峰線(33)之長度變異其高度使呈忽高忽低之起 伏波浪狀者’此時⑽高低起伏之頂峰_)上係連設有該等導 光小單元(4)者。 參 第5圖與第4圖有別者為：各該頂峰線⑼從俯視方向視之， 如壬波浪里之弓曲走向者’該等導光小單元(4)則連設於各該頂峰 線(33)上。 如第6 ®所示者’該結構層⑺上係包括多數高度不同之稜鏡 單元(3 3a 3b’3c)’再令該等導光小單元⑷連設於各頂峰線⑼ 上者。 _ 而如第7圖所不者’該等導光小單元⑷除連設於各集光單元 (3) 之頂峰線(33)上，亦分佈、連設於各集光單元之表面(如棱鏡· 面)編號為、、3卜32，，者。設於各稜鏡面(3卜32)上之導光小單元 (4) 可發揮光之擴散(light_diffiising)作用，使於集光單元集光 (light-concentrating)增加亮度之外’·亦因此等導光小單元之光擴 散(light-diffiising)作用而提昇了光學薄膜之光均勻度，故集光與 光擴散，乃協同地增益了本發明絲薄膜之亮(輝)度與光均句 度，可謂相輔相成，兩全其美。 9 1302989 如第8圖所示，則各導光小單元⑷呈圓沉、突起之形狀，彼等 ，發揮光擴散個’配合各料單元⑶之集光_，光擴散與集 -光’相輔滅’乃增加光學_及其光學製品之光均勻度與輝(亮) 度者。 而如第9圖所示者’該導光小單元(4)亦可將前述之突部修飾 為凹部㈣。該等凹部㈣可呈連續狀，或互呈分開狀，本發明並 > 未限定之。 又如第10圖所示’該等導光小單元，以突部(4)及凹部㈣同 設於集《或稜鏡單元(3)之表㈣稜鏡面(3卜32)上，如是亦形成 本發明之另一可取實施例。 前述之導光小單元⑷呈突部或突出狀者亦可定義為凸透鏡； 而呈凹部或凹入狀者則可定義為凹透鏡者。 又’前狀導光小單元_可修飾、絲為小凸部或小凹部 ’者。 由於傳統用崎低消統合或制邊轉光學缺點之作法乃 設法將具有結構表面之相鄰光學薄膜片加以物理地分隔開來，但 卻因此增加了所製絲產品之厚度，也增加了喊之困難度。經 本發明此-改進，_設之、、微小〃導光小單元⑷對最終光學 產品厚度之影響極其有限’但卻能克服消綠合等光學缺點，且 兩全其美地增益了光㈣膜及其光學產品之輝（亮）度與光均勾 1302989 度，實足優異、進步於習知之光學薄膜產品。 本發明猶可於不違本發明之精神及範疇下，再作適當之修飾 或改變，本發明實不限制之。 【圖式簡單說明】 第1圖係本發明第1實施例之示意圖。 第2圖係本發明第2實施例之示意圖。 第3圖係本發明第3實施例之示意圖。 第4圖係本發明第4實施例之示意圖。 第5圖係本發明第5實施例之示意圖。 第6圖係本發明第6實施例之示意圖。 第7圖係本發明第7實施例之示意圖。 第8圖係本發明第8實施例之示意圖。 第9圖係本發明第9實施例之示意圖。 第10圖係本發明第10實施例之示意圖。 【主要元件符號說明】 1……基層； 2·.•…結構層； 3, 3a，3b，3c……集光單元；4……導光小單元； 31，32……表面； 33……頂峰線。1302989 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to an optical film that overcomes optical disadvantages. [Prior Art] In order to increase the brightness of the conventional optical film, the two optical films are often superposed in mutually orthogonal directions, but the two optical films are in contact with each other or are in close proximity, which will result in matting (wet Optical defects such as -out) and MoirS fringe degrade the quality of the optical film, so many conventional methods have been used to improve or overcome the optical disadvantage. • U.S. Patent No. 5,771,328 discloses an optical film in which a higher unit is disposed on the side of the lower unit. When two optical films are in close proximity, the car is singularly TL. In addition, the optical film can be used to reduce the matte surface of the two film stacks, but the faintly visible line can still be seen. Difusers or diffusion layers (diffUsers) are also used to "mask" these optical disadvantages, such as processing a diffusion layer on one or both sides of an optical film. But in this way, - causing the scattering of light (sc coffee:), reducing the axial gain (gain), but not increasing the brightness (light), but also its shortcomings. The inventor of the present invention (4), in this research, reveals the optical film of the present invention which is capable of overcoming the optical disadvantages of 51302989. SUMMARY OF THE INVENTION An object of the present invention is to provide an optical film capable of overcoming optical defects, comprising: a transparent base layer; a structured layer connected to the transparent base layer, which is composed of a plurality of sets Light-concentrating units such as 稜鏡 cells are juxtaposed on the base layer; and a plurality of light-directing small elements (Hght-directing tiny elemen1: s) are connected to a peak line of the light collecting unit. Or being connected to the surface or the surface of the light collecting unit, which can form an optical film to overcome optical defects such as wet-coupling and Moir6 fringe, and can improve the optical film. The combination of light and diffusion, and thus synergistically gain its luminance (brightness) and light uniformity. The desirable entities of the present invention can be clarified by the following description in conjunction with the drawings. [Embodiment] Referring to Figure 1, the optical film of the present invention comprises a transparent base layer (1); a structural layer (2) is connected to the county layer (1), and is connected by a township number collecting unit (3) such as a prism unit. It is disposed on the base layer (1) to form the structural layer (2); and a plurality of light guiding small units (4) are connected to the peak line (33) of the light collecting unit (3), and constitute a 1302989 optical film. • Miscellaneous county layer (1) can be made from facial rouge, including: red riding bismuth vinegar (PET), polycarbonate (PC) and so on. The structural layer (2) is composed of a germanium unit (3), and may also be defined as a germanium layer or a prism array layer; other types of cells capable of collecting light, other than the sample unit (3) It can also be provided to construct the structural layer (2), and the present invention is not limited. # The light collecting unit (3) as shown in Fig. 1 is a unit (3) including two sides (31, 32) which are inclined upwards and intersected to form a peak line (33). • The light guiding small units (4) are connected to the peak line (33), and the longitudinal axis (Y) of each light guiding small unit (4) should be in the vertical direction. The light collecting unit (3) and the light guiding small unit (4) may be integrally molded or molded or imprinted on the base layer (1); and may be made of a photosensitive or photohardening resin or a thermosetting type. Resin, including UV curable resin or UV gel. # Of course, other materials may also be selected and applied, and the invention is not limited. Each child V light], unit (4) can have three sides, tetrahedron and polyhedron; pylon (_); curved or arched protrusion; small 稜鏡 or small convex lens shape The invention is also not limited. The distance between two adjacent light guiding small units (4) should be between 25~3_m (five); the south of each light guiding small single TC(4) should be 0·5/ζηι~2··· The difference between the two peak lines (33) of the unit (4) is not added, but it is still appropriate; when it is 1302989, the hair is not limited by the size, height, spacing, shape, distribution, arrangement, etc. of the related components. . First, as shown in Figure 1, 'not every 稜鏡 unit (3) is light guide), single 7L (4) 'The unit (7) with light guide small unit (4) is high in rain In the case where the light guiding unit (3) is not provided, so that when the two optical thin sheets overlap each other, the higher unit (3) of the unit (4) is provided first. Touching the other piece of optical film at a point can avoid or reduce the inferiority of extinction (tree trapping) coupling and Moir0 fringe. The peak line (33) of the Han small unit (4) itself is also reduced by the peak of the peak line (33), short, and discontinuous for the small unit (4), so the adjacent two filament films were originally visually observed. And the top line (33) can also be reduced to the most *, which greatly overcomes the many optical defects of the conventional optical film. The light-directing tiny element (4) is present on each of the wood light units or the unit (4), and is upwardly tapped, and each unit (3) is injected into each Within the light guiding small unit (4), the light output angle 'gaining light's light_c〇ncentrating effect is narrowed by the light guiding action of the tapered small unit, thereby increasing the brightness of the optical film or Brightness. The invention can also be modified into the embodiment shown in Fig. 2, wherein a lower light collecting unit (3a) can be interposed between the two higher light collecting units (3), and the light guiding small units (4) Then it is connected to the top peak line (33) of the higher light collecting unit (3). 8 1302989 As shown in the 3®, the scaly light guiding unit (4) is connected to the apex line (9) of each concentrating unit (3), which also constitutes a further embodiment of the present invention. m, as read in the 4th ®, the peak line (7) of each of the light collecting units (3) is high and low, that is, the length of each peak line (33) varies, and the height is such that the undulating wave is high and low. At the top of the (10) high and low undulations _), the light guiding small unit (4) is connected to the upper unit. The other figures are shown in Figure 5 and Figure 4: each of the peak lines (9) is viewed from a top view, such as a bower in a wave, where the light guiding small units (4) are connected to each peak. On line (33). As shown in Fig. 6', the structural layer (7) includes a plurality of 高度 units (3 3a 3b'3c) having different heights, and the light guiding small units (4) are connected to the respective peak lines (9). _ and as shown in Figure 7, the light guiding small units (4) are distributed on the top line (33) of each light collecting unit (3), and are also distributed and connected to the surface of each light collecting unit (such as The prisms and faces are numbered, 3, 32, and. The light guiding small unit (4) provided on each side surface (3b) can play a light_diffiising effect to increase the brightness of the light collecting unit (light-concentrating). The light-diffiising effect of the light guiding unit enhances the light uniformity of the optical film, so that the light collecting and the light diffusing synergistically gain the brightness (lightness) and the light uniformity of the silk film of the present invention. Can be said to complement each other, the best of both worlds. 9 1302989 As shown in Fig. 8, each light guiding small unit (4) is in the shape of a rounded, raised shape, and they play a light diffusing 'collection with each material unit (3) _, light diffusion and set-light' phase Auxiliary is to increase the light uniformity and brilliance of the optical _ and its optical products. As shown in Fig. 9, the light guiding small unit (4) can also modify the aforementioned protrusion into a concave portion (four). The recesses (4) may be continuous or separated from each other, and the present invention is not limited thereto. In addition, as shown in Fig. 10, the light guiding small units are arranged on the surface (3) of the table (4) and the concave portion (4). Another preferred embodiment of the invention is formed. The aforementioned light guiding small unit (4) may be defined as a convex lens in the form of a protrusion or a protrusion; and a concave or concave shape may be defined as a concave lens. Further, the front light guiding unit _ can be modified, and the wire is a small convex portion or a small concave portion ‘. Due to the traditional use of the disadvantages of the combination of low-level integration or edge-to-edge optics, it is managed to physically separate adjacent optical film sheets having a structured surface, but this increases the thickness of the manufactured product and increases the thickness. Shouting difficulty. According to the present invention, the effect of the small-sized light guiding small unit (4) on the thickness of the final optical product is extremely limited, but the optical defects such as green elimination can be overcome, and both light gains the light (four) film and its optics. The product's brightness (brightness) and light are both 1302989 degrees, which is excellent and progresses to the well-known optical film products. The present invention is not limited thereto, and may be modified or changed without departing from the spirit and scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a first embodiment of the present invention. Fig. 2 is a schematic view showing a second embodiment of the present invention. Figure 3 is a schematic view showing a third embodiment of the present invention. Figure 4 is a schematic view showing a fourth embodiment of the present invention. Fig. 5 is a schematic view showing a fifth embodiment of the present invention. Figure 6 is a schematic view showing a sixth embodiment of the present invention. Figure 7 is a schematic view showing a seventh embodiment of the present invention. Figure 8 is a schematic view showing an eighth embodiment of the present invention. Figure 9 is a schematic view showing a ninth embodiment of the present invention. Figure 10 is a schematic view showing a tenth embodiment of the present invention. [Description of main component symbols] 1...base layer; 2·.•...structural layer; 3, 3a, 3b, 3c...light collecting unit; 4...light guiding small unit; 31,32...surface; 33... Peak line.