M317021 八、新型說明： 【新型所屬之技術領域】 ，尤其關於供背光模組用之光學複合 且可為一具有多種光學特性之光學膜 本創作係關於一光學複合片 片，其具高輝度、光分布均勻， 片0 【先前技術】 • —般而言，液晶顯示器（簡稱「LCD」）之主要結構包含面板斑背 光模組兩大部分。其中，面板部分包括例如氧化銦錫（IT〇)導電玻 • 液晶、配鏡、彩色渡光片、偏光片、以及驅動積體電路等；而 月光模組部分則包含例如燈管、導光板及各種光學膜片等。 根據光賴在之位置，背光模減齡為直下^背細組及側邊 式气光巧組。圖1卿為—般直下式背光模組㈣面*意圖。該直下 1¾光拉組包含光源(1)、擴散板⑶、擴散膜⑷、稜鏡片⑶及棱鏡保 護二片（6)。且為了使來自光源的入射光線亮度增加，在光源(1)另一側 增设反射板(2)。圖2所示為一般侧邊式模組剖面示意圖。該側邊式模 組包含光源(7)、反射板(8)、導光板(9)、擴散臈(10)、稜鏡片及稜 ^保護片（12)。-般而言，側邊式模組厚度較薄適合應用於筆記型電 _ ，，而"^組厚度較大的直下式背光模組適合應用於液晶顯示監視器及 液晶顯不電視用的面板模組。 朴於實際使用時，為使液晶顯示器能夠有較大的亮度，可增加背光 模組中之光源的燈管數目。然而，此一方式不但容易導致過多熱量蓄 積於液晶顯示器中，影響其他元件的壽命與品質，同時會導致電力消 ，過大，而無法滿足許多資訊類用品必須仰賴電池以離線使用之要 ，° 5外Λ由於背光模組中之擴散板⑶、擴散膜(4)、稜鏡片⑶及反射 反(2)等光學膜片可能會造成材料吸收與反射的現象，使得光源能量損 耗。 為了提升亮度、減少熱量蓄積及降低光源能量損耗，目前業界最 5 M317021 常使用的方法為在液晶顯示器之背光模組中使用各式各樣的光學膜 片，以提高整體亮度。其中之一為多層式反射偏光膜片，例如，3“之 反射式偏光片(Dual Brightness Enhancement Film，DBEF)，其係利用多 層膜技術將近千層具特殊雙折射率(Birefrigence)特性的高^ $ 合成-張厚度僅！32师的光學薄膜。此-光學薄膜的 統偏光片之偏光效果，但卻可將非穿透方向之偏極光有效反射回背光 、模組。由於背光模組中之反射板(2)具有擴散(Diffusion)與擾亂 ，（Scrambling)效應，故可將原本非穿透方向之偏極光部分轉化為穿透方 向之偏極光，進而通過偏光片。經過如此往復作用後，大多數原本應 被^收而損耗的光線大都轉變成可利用的有效光，除可提升背光模= 之亮度，該提升效果更可廣達整個視角範圍。若再配合BEF增亮膜、、， 則可讓背細組最高可_ 16G%的增亮效果。對於需賊廣視 ^桌上型監視态或尚解析度筆記型電腦而言，實為不可或缺的光元 件。 卞 n’並非所有的反射偏光膜片都需仰賴高階製程的多層膜 付牛例口之’利用膽固醇液晶(Ch〇iesteric LC)配合1 /4波長膜(Quarte ==得之膽_液晶相反射偏光則，亦可將规糊偏光的 ί=i ^。’經上述之往復侧而得到類似上述多層式反射偏光膜M317021 VIII. New description: [New technical field], especially for optical composites for backlight modules and can be an optical film with various optical properties. The author is about an optical composite sheet with high brightness, Uniform light distribution, slice 0 [Prior Art] • In general, the main structure of liquid crystal display ("LCD") includes two parts of the panel spot backlight module. Wherein, the panel portion includes, for example, indium tin oxide (IT〇) conductive glass, liquid crystal, lens, color light-emitting sheet, polarizer, and driving integrated circuit, and the moonlight module portion includes, for example, a lamp tube and a light guide plate. Various optical films and the like. According to the position of the light, the backlight mold is reduced to the lower part and the side type of the light and light group. Figure 1 is a general-purpose direct-lit backlight module (four) face * intent. The straight down 13⁄4 light pull group comprises a light source (1), a diffuser plate (3), a diffusion film (4), a cymbal piece (3) and a prism protection two piece (6). In order to increase the brightness of incident light from the light source, a reflector (2) is added to the other side of the light source (1). Figure 2 shows a schematic cross-sectional view of a general side module. The side mold group includes a light source (7), a reflection plate (8), a light guide plate (9), a diffusion crucible (10), a cymbal sheet, and a rib protection sheet (12). In general, the side-mounted module is thinner and suitable for notebook type _, and the direct-type backlight module with larger thickness is suitable for liquid crystal display monitors and LCD display TVs. Panel module. In order to make the liquid crystal display have a large brightness, the number of lamps of the light source in the backlight module can be increased. However, this method not only tends to cause excessive heat accumulation in the liquid crystal display, but also affects the life and quality of other components, and at the same time, the power consumption is too large, and it cannot satisfy the demand that many information products must rely on the battery for offline use. Due to the absorption and reflection of materials, the optical film such as the diffusion plate (3), the diffusion film (4), the cymbal plate (3) and the reflective inverse (2) in the backlight module may cause energy loss of the light source. In order to improve brightness, reduce heat accumulation and reduce energy loss of the light source, the most commonly used method in the industry is to use a variety of optical films in the backlight module of the liquid crystal display to improve the overall brightness. One of them is a multilayer reflective polarizing film, for example, a 3" Dual Brightness Enhancement Film (DBEF), which utilizes a multilayer film technology to achieve a high degree of birefrigence characteristics of nearly one thousand layers. $ Synthetic-sheet thickness only! 32-segment optical film. This-optical film has a polarizing effect, but it can effectively reflect the non-penetrating direction of the polarized light back to the backlight and module. The reflector (2) has a diffusion and a scrambling effect, so that the polarized portion of the original non-penetrating direction can be converted into the polarized light of the penetrating direction, and then passed through the polarizer. Most of the light that should have been lost and consumed is mostly converted into available light. In addition to improving the brightness of the backlight mode, the lifting effect can be extended to the entire viewing angle range. If BEF is used together, It can make the back fine group up to _ 16G% brightening effect. It is an indispensable optical component for the thief wide viewing ^ desktop monitoring state or the resolution resolution notebook computer. 卞n' is not all The reflective polarizing film needs to rely on the high-order process of the multilayer film to use the cholesteric liquid crystal (Ch〇iesteric LC) with a 1/4 wavelength film (Quarte == biliary _ liquid crystal phase reflection polarized light, can also ί=i ^. The above-mentioned reciprocating side is obtained to obtain a multilayer reflective polarizing film similar to the above.
先考ίίΐίϋϊ顯示r場競爭激烈，價格往往成為設計喃優 重要因素之-。因此’可於減輕模組組裝人力負擔 t與成本壓力之同時’而不犧牲任何光學^現，將成 要之課題’亦為使用者期待之目標。而將多種光 【新型内容】 ’創作出具擴散及偏光回收兩種 本案創作人經廣泛及深入的研究 功能之光學複合片。 6 M317021 能之種輝度高、光分布均勻、且具多功 位於ί以=複片第其光包二;-第-偏光回收層，其 衣 及弟一先擴散層，位於該第-偏光回收層之上。 【實施方式】 圖3所示為本創作光學複合片之 及一第-光擴散層(23)，塗佈或壓印於第—偏光回收層表面’ 丨 基材(21)可為本創作所屬技術領域中具有通常知識者 為，此為限：聚 醋=維素、聚醯亞胺樹脂或聚自旨樹脂。較佳如對 二甲酸乙酯(PET)或聚萘二甲酸乙酯(醜）。 如秋對本 掩為^學基材，其例如但不限於圖4_修斤示之導 iii21+4)、擴散膜(215)、v-cut 導光板（216)或 為組合。其中’如圖4(b)所*，導光板 .巧之方法壓製成一板塊，再以網版印刷方式將高The first test ίίΐίϋϊ shows that the r field is fiercely competitive, and the price often becomes an important factor in the design of the um. Therefore, it is possible to reduce the burden of module assembly and the cost pressure without sacrificing any optical technology. And a variety of light [new content] ‘creative diffusion and polarized light recovery. The creator of this case has extensive and in-depth research functions of optical composite film. 6 M317021 The energy of the species is high, the light distribution is uniform, and the multi-function is located at ί = the second film of the second package; the first - polarized light recovery layer, the first diffusion layer of the clothing and the younger, is located in the first-polarization recovery Above the layer. [Embodiment] FIG. 3 shows a first optical-diffusion layer (23) coated or embossed on the surface of the first-polarization recovery layer. The substrate (21) can be the creation of the present invention. The general knowledge in the technical field is limited to: polyacetate = vitamin, polyimine resin or poly-resin. Preferably, it is p-ethyl dicarboxylate (PET) or polyethylene naphthalate (ugly). For example, the mask is a substrate, which is, for example but not limited to, the guide iii21+4), the diffusion film (215), the v-cut light guide plate (216) or a combination. Among them, as shown in Figure 4(b), the light guide plate is pressed into a plate and then screen printed.
f於該減之-絲職_或謂之概 -為楔形板(213)或平板(212)。 ，、T板塊T 擴散板(2M) ’如圖4(c)所示，係為一具有光擴散 擴散膜(215) ’如圖4(d)所示，係一種含基材 係於基材表面塗佈含擴散顆粒的塗料，具光擴散之^用月先子膜片其 7 M317021 ，㈣賴示，艰麵微結構加 聚，膜(217及218)，如圖4(f)所示，係一種含基材之透明光學膜 片，其係於基材表面作為微結構處理，具聚光之功效，其中微結構可 為規則稜鏡結構(217)或不規則棱鏡結構(218)。 ^ ·第一偏光回收層(22)可為膽固醇相液晶反射偏光層(Cholestoricf is the subtraction - silk job - or simply - is a wedge plate (213) or plate (212). , T plate T diffusion plate (2M) 'As shown in Figure 4 (c), is a light diffusion diffusion film (215) 'as shown in Figure 4 (d), is a substrate containing substrate The surface is coated with a coating containing diffusing particles, and the light diffusing film is made of 7 M317021, (4) Lai, hard surface microstructure polyaddition, film (217 and 218), as shown in Fig. 4(f) The invention relates to a transparent optical film comprising a substrate which is treated as a microstructure on the surface of the substrate and has the function of concentrating, wherein the microstructure can be a regular 稜鏡 structure (217) or an irregular prism structure (218). ^ · The first polarized light recovery layer (22) can be a cholesterol phase liquid crystal reflective polarizing layer (Cholestoric
Liquid Crystal based reflective Polarization (Ketiweflective Polarization layer)，其可經由貼合或直接塗覆之方式而 形成於基材（〒上。舉例言之，可先將膽固醇液晶塗覆於ρΕτ膜上 9而形成一膽固醇液晶膜，再撕下該膽固醇液晶膜並以光學膠將其貼合 艾，板上。所形成之第一偏光回收層(22)可將非穿透方向之偏&光有 效地回收，將該非穿透方向之偏極光部分轉化為穿透方向之偏極光。 、=如此在復作用後’大多數原本應被吸收而損耗之非穿透方向偏極 光’將轉變成可被有效顧的穿透方向偏極光，使模組亮度提升。 4 土第一光擴散層⑼為具有凹凸結構之賴，其可以熟習本創作技 術者所知之任何方式而形成於第一偏光回收層(22)上，例如··將 J j液藉由壓印(imprint)製程或塗佈(c〇ati )製 直接t第—偏光回收層(22)上塗覆具凹凸結構之含ΐ粒3液 春t為1^1米至％微米’其可為相同或不同粒徑之顆粒。可 -之顆粒種類並無特殊限制，可為有機顆粒、無機顆粒或 Λ 扣&勿。該顆粒之形狀亦無特殊限制，可為例如球形或菱形等。 兩祕本創作第—光擴散層(23)之有機顆粒，係選自以下群組·· 月日、苯乙烯樹脂、胺基甲酸_脂、賴(sili_)樹脂、及 :可用於本創作第一光擴散層(23)之無機顆粒，則可選自以 化鋅且鋅、ί氧化鈦、氧化錯、氧化錫、氧化銘、職鋼、硫 化鋅&馱鋇、二氧化矽、及其混合物。 8 M317021 視需要地’可於本創作光學複合片包盥Liquid Crystal based reflective Polarization (Ketiweflective Polarization layer), which can be formed on the substrate by means of lamination or direct coating. For example, the cholesteric liquid crystal can be first coated on the ρττ film to form a The cholesteric liquid crystal film is peeled off and the cholesteric liquid crystal film is peeled off and adhered to the enamel plate by optical glue. The first polarized light recovery layer (22) formed can effectively recover the non-penetrating direction bias light. Converting the non-penetrating direction of the polarized light into the polarized light of the penetrating direction. Then, after the reaction, 'most of the non-penetrating direction polarized light that should be absorbed and lost will be converted into an effective one. The direction of the pole is polarized to increase the brightness of the module. 4 The first light diffusing layer (9) of the earth is a structure having a concave-convex structure, which can be formed in the first polarized light recovery layer (22) by any means known to those skilled in the art. For example, the J j liquid is coated on the direct t-polarization recovery layer (22) by an imprint process or a coating (c〇ati), and the ruthenium-containing granule 3 is applied to the concave-convex structure. 1^1 m to % micron' which can be The particles of the same or different particle diameters are not particularly limited, and may be organic particles, inorganic particles or shackles. The shape of the particles is not particularly limited and may be, for example, a sphere or a rhombus. The secret of the creation of the first light-diffusion layer (23) organic particles, selected from the following groups · · month, styrene resin, amino formate _ lipid, sili (resili) resin, and: can be used in this creation first The inorganic particles of the light diffusion layer (23) may be selected from the group consisting of zinc and zinc, titania, oxidized, tin oxide, oxidized, steel, zinc sulfide & bismuth, cerium oxide, and mixtures thereof. 8 M317021 Depending on the need, it can be used in this creative optical composite package.
—光擴散層(23); 偏 C (2!^ 之i合。亦别述關於弟一偏光回收層(22)，但未必須選用相同 :聲=====先:= 言^範之間。因此’本創作之權利保護範圍應如後述之中 【圖式簡單說明】 圖1習知直下式背光模組之示意圖。 圖2習知側邊式背光模組之示意圖。 圖3為本創作光學複合片之第一實施例示意圖。 圖4(a)至圖4(f)為本創作之光學基材示意圖。 M317021 圖5為本創作光學複合片之第二實施例示意圖。 圖6為本創作光學複合片之第三實施例示意圖。- light diffusion layer (23); partial C (2!^ i. Also about the brother-polarization recovery layer (22), but not necessarily the same: sound ===== first: = between Therefore, the scope of protection of this creation should be as described later [Simple Description of the Drawings] Figure 1 is a schematic diagram of a conventional direct-lit backlight module. Figure 2 is a schematic diagram of a conventional side-lit backlight module. Schematic diagram of the first embodiment of the optical composite sheet. Fig. 4(a) to Fig. 4(f) are schematic views of the optical substrate of the present invention. M317021 Fig. 5 is a schematic view showing the second embodiment of the optical composite sheet. A schematic diagram of a third embodiment of creating an optical composite sheet.
【主要元件符號說明】 1,7 光源 2, 8 反射板. 3 擴散板 4, 10 擴散膜 5, 11 稜鏡片 6, 12 棱鏡保護片 9 導光板 21 基材 22 第一偏光回收層 22， 第二偏光回收層 23 第一光擴散層 23， 第二光擴散層 211 透明基材 212,213 導光板 214 擴散板 215 擴散膜 216 V-Cut導光板 217,218 聚光膜[Main component symbol description] 1,7 light source 2, 8 reflector. 3 diffuser 4, 10 diffuser film 5, 11 die 6, 12 prism protective sheet 9 light guide plate 21 substrate 22 first polarization recovery layer 22, Bipolar light recovery layer 23 First light diffusion layer 23, Second light diffusion layer 211 Transparent substrate 212, 213 Light guide plate 214 Diffuser plate 215 Diffusion film 216 V-Cut Light guide plate 217, 218 Light concentrating film