201017229 九、發明說明： 【發明所屬之技術領域】 特別是指一種具 本發明是有關於一種聚光片的製法， 有斜向排列稜鏡柱之聚光片的製法。 【先前技術】201017229 IX. Description of the invention: [Technical field to which the invention pertains] In particular, the invention relates to a method for producing a concentrating sheet, which is a method for producing a concentrating sheet having obliquely arranged masts. [Prior Art]
習知聚光片的製法大部分是利用表面形成有多數條v 形溝紋微結構的滾輪，在一可捲繞呈抽的可透光母片上塗 冑uv勝，再以滾輪連續壓印。若滾輪的V形溝紋延伸方 ❹ 向垂直其軸向，則可於母片9上形成多數平行加工方向MD 排列的稜鏡柱9卜如K丨所示；若滾輪的v㈣紋延伸方 向平行其轴向，則可於母片9,上形成多數垂直加工方向則 排列的稜鏡柱9卜如圖2所示。之後，再以平行加工方向 MD為第-裁切方向9()1及垂直加工方向md為第二裁切方 向902’將母片9、9’裁切成多數適當矩形尺寸可供背光模 組（圖未示）使用的聚光片9〇。Conventional concentrating sheets are mostly produced by using a roller having a plurality of v-groove microstructures formed on the surface thereof, coating a rewritable light-transmissive master sheet with a 胄uv win, and continuously embossing with a roller. If the V-shaped groove of the roller extends perpendicularly to the axial direction, the mast 9 can be formed on the mother sheet 9 in a plurality of parallel machining directions MD as shown by K丨; if the v (four) pattern of the roller extends in parallel In the axial direction, the mast 9 which is arranged on the mother sheet 9 and formed with a plurality of vertical machining directions is as shown in FIG. Then, the mother piece 9, 9' is cut into a plurality of suitable rectangular sizes for the backlight module by using the parallel machining direction MD as the first-cut direction 9 () 1 and the vertical machining direction md as the second cutting direction 902'. The concentrating sheet 9 used (not shown).
利用前述裁切方式製得的聚光片90，其上的稜鏡柱91 為平行或垂直其長邊，容易與液晶顯示器（圖未示）的面 板畫素形成莫爾條紋（Moire)。為了改善此一現象，如圖3 所不，現有聚光片的製法，是利用與加工方向MD傾斜相 交的裁切方向903、904,在母片9上（此處僅以平行加工 方向的稜鏡柱為例說明）裁切出多數適當矩形尺寸的聚光 片90，使聚光片90’上的稜鏡柱91與聚光片90’的長邊傾 斜相交。然而，由於母片9通常呈長形，且加工方向厘!） 一般即為母片9的長度方向，以傾斜相交於加工方向MD 201017229 的裁切方向903、904裁切出尺寸較小的矩形聚光片90,， 會導致週邊形成不規則的剩餘區域900，剩餘區域900即成 為廢料，大幅降低母片9裁切的經濟效益，造成材料的浪 費。 【發明内容】 因此，本發明之目的，即在提供一種具有較佳經濟效 益的具有斜向排列稜鏡柱之聚光片的製法。 於是’本發明具有斜向排列稜鏡柱之聚光片的製法， 步驟包含： 0 a) 提供一可透光的長形母片，該母片具有一母片長度 方向； b) 於該母片上形成多數個互相平行排列的稜鏡柱且 該等稜鏡柱的柱體長度方向與該母片長度方向夾一 角度；及 c) 以平行該母片長度方向為一第一裁切方向，及垂直 該母片長度方向為一第二裁切方向，將該母片裁切 出複數聚光片，使各該聚光片呈矩形，且各該聚光0 片的稜鏡柱呈斜向排列。 適用於步驟b)中，於該母片上形成該等稜鏡柱的方法 ，例如滾輪壓印或模仁轉印方式，並可先於該母片上塗佈 uv膠，再以滾輪壓印或模仁轉印方式使該uv膠固化形成 該等稜鏡柱。其中’以滾輪壓印方式所使用的滾輪表面具 有互相平行排列的複數V形溝，且該等V形溝的延伸方向 不與該滾輪轴向垂直或平行，可使該等稜鏡柱的柱雜長 201017229 方向與該母片長度方向的夾角角度不為0度或90度，且以 介於2-45度較佳。 步驟c)所述各該聚光片的稜鏡柱呈斜向排列係指各 該聚光片的稜鏡柱的柱體長度方向與各該聚光片的長邊呈 傾斜相交。 本發明具有斜向排列棱鏡柱之聚光片的製法藉由在 該母片上％成多數平行排列且與該母片長度方向傾斜相交 的稜鏡柱，再以平行該母片長度方向為一第一裁切方向， 及垂直該母片長度方向為一第二裁切方向，可將該母片完 整裁切成多數較小尺寸的矩形聚光片，以達到最佳的經濟 效益，避免材料的浪費。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一較佳實施例的詳細說明中，將可清 楚的呈現。為方便說明起見，以下的參考圖式僅為示意， 並非等比例製圖。 參閲圖4,本發明具有斜向排列棱鏡柱之聚光片的製法 之一較佳實施例，步驟包含： 步驟101，配合參閱圖5，提供一可透光的長形母片2 ，母片2具有一母片長度方向201，可沿母片長度方向2〇1 捲繞呈捆。母片2可為一般用於聚光片基材的PET膜、PC 膜等。 步驟102，配合參閱圖6，於母片2上形成多數個互相 平行排列的稜鏡柱3，且該等稜鏡柱3的柱體長度方向3〇1 201017229 與該母片長度方向201夾-角度0，該角度θ不為〇度或％ 度，以介於2-45度較佳。在本實施例中，該等稜鏡柱3是 利用塗佈在母2上的UV膠，再以表面具有互相平行排列 的複數V形溝41的滾輪4(參閱圖7)壓印固化成形，值 得注意的是，該等V形溝41的延伸方向4〇1與滾輪轴向 402呈傾斜相交，亦即，該等v形溝41的延伸方向4〇1不 與滾輪轴向402垂直或平行，而使藉由該等v形溝41壓印 形成的該等稜鏡柱3，其柱體長度方向3〇1可與母片長度方 向201夾一角度θ。 *The concentrating sheet 90 obtained by the above-mentioned cutting method has the masts 91 on the parallel or vertical sides thereof, and is easy to form a Moire pattern with the panel pixels of the liquid crystal display (not shown). In order to improve this phenomenon, as shown in Fig. 3, the conventional concentrating sheet is produced by using the cutting directions 903, 904 which are obliquely intersected with the processing direction MD, on the mother sheet 9 (here only the ribs in the parallel processing direction) The mirror column is exemplified by cutting out a plurality of concentrating sheets 90 of a suitable rectangular size such that the mast 91 on the concentrating sheet 90' obliquely intersects the long side of the concentrating sheet 90'. However, since the mother sheet 9 is generally elongated and the machine direction is PCT!) is generally the length direction of the mother sheet 9, and the rectangle having a smaller size is cut in the cutting directions 903, 904 which are obliquely intersected in the machine direction MD 201017229 The concentrating sheet 90 causes an irregular remaining area 900 to be formed in the periphery, and the remaining area 900 becomes waste, which greatly reduces the economical benefit of the cutting of the mother sheet 9, resulting in waste of materials. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method of producing a concentrating sheet having obliquely aligned masts having better economic efficiency. Thus, the present invention has a method for preparing a concentrating sheet of obliquely arranged masts, the steps comprising: 0 a) providing a light transmissive elongated mother sheet having a length direction of the mother sheet; b) Forming a plurality of mutually parallel columns on the sheet, and the length direction of the columns of the columns is at an angle to the length direction of the mother sheet; and c) is parallel to the length direction of the mother sheet as a first cutting direction, And perpendicular to the length direction of the mother piece is a second cutting direction, the mother piece is cut out of the plurality of concentrating pieces, so that each of the condensing pieces is rectangular, and each of the concentrating pieces is inclined arrangement. Suitable for the method of forming the column on the mother piece in step b), such as roller embossing or mold transfer mode, and coating uv glue on the mother piece before embossing or molding with a roller The transfer method of the urethane cures the uv gum to form the masts. Wherein the surface of the roller used by the roller imprinting method has a plurality of V-shaped grooves arranged in parallel with each other, and the extending direction of the V-shaped grooves is not perpendicular or parallel to the axial direction of the roller, so that the columns of the columns can be The angle between the direction of the hybrid length 201017229 and the length direction of the mother piece is not 0 degrees or 90 degrees, and is preferably between 2 and 45 degrees. The oblique arrangement of the masts of the concentrating sheets in the step c) means that the longitudinal direction of the cylinders of the concentrating sheets is obliquely intersected with the long sides of the concentrating sheets. The concentrating sheet having the obliquely arranged prism columns of the present invention is formed by arranging a plurality of columns arranged in parallel on the mother sheet and obliquely intersecting the longitudinal direction of the mother sheet, and then paralleling the length direction of the mother sheet. a cutting direction, and a vertical direction of the mother piece is a second cutting direction, the mother piece can be completely cut into a plurality of rectangular concentrating pieces of smaller size to achieve the best economic benefit and avoid material waste. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. For convenience of description, the following reference figures are merely schematic and not to scale drawings. Referring to FIG. 4, a preferred embodiment of the method for fabricating a concentrating sheet having an obliquely arranged prism column comprises the following steps: Step 101: Referring to FIG. 5, a long transparent mother piece 2 is provided. The sheet 2 has a length direction 201 of the mother sheet which can be wound in a bundle of 2〇1 along the length direction of the mother sheet. The mother sheet 2 may be a PET film, a PC film or the like which is generally used for a concentrating sheet substrate. Step 102, with reference to FIG. 6, a plurality of masts 3 arranged in parallel with each other are formed on the mother sheet 2, and the length direction of the cylinders of the masts 3 is 3〇1 201017229 and the length direction 201 of the master sheets is clamped - Angle 0, the angle θ is not a degree or a degree, preferably between 2 and 45 degrees. In the present embodiment, the masts 3 are formed by using a UV glue coated on the mother 2, and then pressing and forming the rollers 4 (see FIG. 7) having a plurality of V-shaped grooves 41 arranged in parallel with each other. It should be noted that the extending direction 4〇1 of the V-shaped grooves 41 and the roller axial direction 402 are obliquely intersected, that is, the extending direction 4〇1 of the V-shaped grooves 41 is not perpendicular or parallel to the roller axial direction 402. The pillars 3 formed by the embossing of the v-shaped grooves 41 have a cylinder longitudinal direction 3〇1 which is at an angle θ with the longitudinal direction 201 of the master. *
A 步驟103，配合參閱圖8，以平行母片長度方向2〇1為 一第一裁切方向501，及垂直母片長度方向2〇1為一第二裁 切方向502，將母片2裁切出複數聚光片5,使各聚光片5 呈矩形，且各聚光片5的稜鏡柱3呈斜向排列，亦即，參 閱圖9，各聚光片5的稜鏡柱3的柱體長度方向3〇1與各聚 光片5的長邊51呈傾斜相交。 由圖8可知，母片2可完整裁切成數片尺寸較小的聚 光片5，而不會有剩餘的部分造成浪費，可達最佳經濟效益春 ’再者’此裁切方式較容易控制，亦可提昇生產良率。 歸納上述’本發明具有斜向排列稜鏡柱之聚光片的製 法，利用在母片2上形成柱體長度方向301與母片長度方 向201傾斜相交的稜鏡柱3,再以平行及垂直母片長度方向 201的第一、第二裁切方向5〇1、5〇2將母片2裁切成多數 片尺寸較小的具有斜向排列稜鏡柱3之聚光片5,不會造成 材料的浪費’可達最佳的經濟效益，而且可使裁切製程較 201017229 谷易控制’能夠提昇生產良率’故確實能達成本發明之目 的0 准以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一不意圖，說明一習知的聚光片的製法； 圖2是一不意圖，說明另一習知的聚光片的製法； 圖3是一示意圖，說明又一習知的聚光片的製法； 圖4是一流程圖，說明本發明具有斜向排列稜鏡柱之 聚光片的製法之一較佳實施例； 圖5是—示意圖’說明該較佳實施例之一母片； 圖6疋一示意圖，說明該較佳實施例之一在該母片上 形成多數稜鏡柱的步鄉； 圖7疋—示意圖，說明該較佳實施例中用以壓印該等 稜鏡柱的滾輪； 圖8是一示意圖，說明該較佳實施例之一裁切該母片 的步驟；及 圖9是一示意圖，說明該較佳實施例製得之一聚光片 〇 9 201017229 【主要元件符號說明】 101 ·_·· …步驟 Θ ....... …角度 102 ..· …步驟 9 ....... …母片 103 ···· …·步驟 9,…… …·母片 2 ....... …·母片 90…… …·聚光片 201… …·母片長度方向 90,.… •…聚光片 3 ....... …棱鏡柱 900… …·剩餘區域 301… •…柱體長度方向 901… —第 裁切方向 4 ....... •…滚輪 902… •…第二裁切方向 401 ··· •…延伸方向 903… •…裁切方向 402… •…滾輪轴向 904… •…裁切方向 41 "… ···· V形溝 91···.· •…稜鏡柱 5…… •…聚光片 MD… •…加工方向 501… —第 裁切方向 502… …·第二裁切方向 10A step 103, with reference to FIG. 8, the parallel cutting piece length direction 2〇1 is a first cutting direction 501, and the vertical mother piece length direction 2〇1 is a second cutting direction 502, and the mother piece 2 is cut. The plurality of concentrating sheets 5 are cut out so that the concentrating sheets 5 are rectangular, and the masts 3 of the concentrating sheets 5 are arranged obliquely, that is, referring to FIG. 9, the masts 3 of the concentrating sheets 5 are arranged. The longitudinal direction of the cylinder 3〇1 and the long side 51 of each of the condensing sheets 5 are obliquely intersected. It can be seen from Fig. 8 that the mother piece 2 can be completely cut into a plurality of small-sized concentrating sheets 5 without waste of the remaining part, and the best economic benefit is obtained. Easy to control and increase production yield. The method for manufacturing the concentrating sheet having the obliquely arranged masts of the present invention is summarized, and the mast 3 which is obliquely intersected with the length direction 201 of the main sheet is formed on the mother sheet 2, and then parallel and vertical. The first and second cutting directions 5〇1, 5〇2 in the longitudinal direction 201 of the mother sheet cut the mother sheet 2 into a plurality of concentrating sheets 5 having a diagonally aligned mast 3 having a small size, and will not The waste of materials can be achieved to achieve the best economic benefits, and the cutting process can achieve the purpose of the present invention by the fact that the cutting process can improve the production yield compared to 201017229. The preferred embodiment of the invention is not limited to the scope of the invention, and the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are still within the scope of the invention. . BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a conventional method for producing a concentrating sheet; FIG. 2 is a schematic view showing another conventional method for producing a condensing sheet; FIG. 3 is a schematic view showing Another conventional method for producing a concentrating sheet; FIG. 4 is a flow chart showing a preferred embodiment of the method for producing a concentrating sheet having obliquely aligned masts of the present invention; FIG. 5 is a schematic view showing the comparison A master piece of a preferred embodiment; FIG. 6 is a schematic view showing a step of forming a plurality of masts on the master piece in the preferred embodiment; FIG. 7A is a schematic view showing the preferred embodiment Stamping the rollers of the masts; Figure 8 is a schematic view showing one step of cutting the master piece in the preferred embodiment; and Figure 9 is a schematic view showing a preferred embodiment of the stack Light sheet 〇9 201017229 [Description of main component symbols] 101 ·_·· ...Step Θ ...............An angle 102 ..· ...Step 9 ....... ...Master 103 ···· ...·Step 9, ... ...· Master 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... concentrating sheet 3 .... prism column 900 ... ... remaining area 301 ... • ... cylinder length direction 901 ... - cutting direction 4 ......... • ... wheel 902... ...Second cutting direction 401 ··· •...Extension direction 903... •...Cutting direction 402... •...Roller axis 904... •...Cutting direction 41 "... ···· V-shaped groove 91··· .· •...稜鏡 5... •...Condenser MD... •...Machining direction 501... —Cut cutting direction 502...·Second cutting direction 10