M381791 - < > 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種偏光片保護膜製造裝置，旨在提供 一適用於液晶顯示器中偏光片使用之保護膜結構。 【先前技術】M381791 - <> 5, New Description: [New Technology Field] This creation is about a polarizer protective film manufacturing device, aiming to provide a protective film structure suitable for use in polarizers in liquid crystal displays. [Prior Art]
偏光片（Polarizer)或稱為高分子偏光層（Polarizing Layer) ’其應用範圍相當廣，除用於lcd外，亦可用於太 陽眼鏡、攝影器材濾光鏡、防眩護目鏡、汽車車頭防眩處 理及光量調節器等’其他尚有偏光顯微鏡與特殊醫療用眼 鏡等用途；習知的顯示器為提昇對比、降低外界的炫光， 亦會以貼附偏光片的方式來解決。偏光片在LCD應用上可 分為供應TN、STN及TFT用三種等級，現在隨著LCD面 板產業的興起，偏光片的市場大幅成長。 在液晶顯示器中’偏光片之用途是將原本不具偏極性 的光線’產生偏極化，轉變成偏極光，因此，液晶顯示器 就能利用此偏極光，加上液晶分子本身的扭轉特性，來達 到控制光線的通過與否以及色彩訊號的呈現。而近年來， 隨著液晶顯示元件被廣泛地應用於諸如文字處理器（w〇rd processor)、電腦螢幕、手機或液晶電視等各種電子設備 中，偏光片的需求量也越來越大。 而偏光片中主要設有一摻合偏光化合物之PVA層，而 該掺合偏光化合物之PV A層在延伸定向後，内部之偏光化 合物會有繼續擴散出PVA層的問題，所以必須藉由上下兩 片TAC(tri-acetylcellulose)保護膜之貼合，來保護pva層 M381791 中的偏光化合物，但是高分子的TAC保護層本身強度並不 理想，偏光片使用時間久，還是會有可靠度的問題，而且 TAC保護膜製程需要經過擠出、冷卻、分離、硬化、收捲 以及拉伸等步驟，其製程步驟較為繁複且成本較高，佔所 有偏光片材料54%。 【新型内容】 有鑑於此，本創作即在提供一種偏光片保護膜製造裝 置，旨在提供一適用於液晶顯示器中偏光片使用，並取代 習有TAC保護膜之保護膜結構。 本創作之保護膜係藉由卷對卷(roll to roll)連續性製造 裝置所製成，使該上、下保護膜雙面均為光滑面，且該上、 下保護膜在可見光光譜的平均穿透率超過91%，且光線通 過該上、下保護膜所產生之相位延遲不超過7nm，使該保 護膜可取代習有TAC保護膜，不僅簡化製程，並大為降低 偏光片之成本。 【實施方式】 本創作「偏光片保護膜製造裝置及其所形成之偏光 片」，該保護膜製造裝置，如第一圖之第一實施例所示，其 至少包含有： 輔助載體21，係由一輔助載體輸送輪31提供輔助載 體21，該輔助載體21可以為基材，而該基材上預設有離 型層22，該基材可以為聚對苯二曱酸乙二醇酯（PET)或聚 乙烯(PE)材質，而該離型層22可以為離型膜或黏著劑； 成型材料提供組件32，用以提供成型材料24，該成型 M381791 材料提供組件32係設於該輔助載體21 —側，藉由該成型 材料提供組件32提供成型材料24，使該輔助載體21上則 佈設有成型層23，該成型層23可以為光硬化型樹脂材質 (例如UV膠材質）或者為熱硬化型樹脂材質； 鏡面輪33，該鏡面輪33係設於成型材料提供組件32 後方，且相對於該成型層23上方，於該成型層23上進行 鏡面處理，使該成型層23形成預定厚度並形成鏡面；Polarizer or Polarizing Layer has a wide range of applications. In addition to lcd, it can also be used in sunglasses, photographic equipment filters, anti-glare goggles, and anti-glare for car heads. Processing and light quantity adjusters, etc. 'Others have polarized microscopes and special medical glasses, etc.; conventional displays are used to enhance contrast and reduce external glare, and will also be solved by attaching polarizers. Polarizers can be classified into three grades for TN, STN and TFT in LCD applications. Now with the rise of the LCD panel industry, the market for polarizers has grown significantly. In the liquid crystal display, the use of the polarizer is to polarize the originally unpolarized light into a polarized light. Therefore, the liquid crystal display can utilize the polarized light and the torsional characteristics of the liquid crystal molecules themselves. Control the passage of light and the presentation of color signals. In recent years, as liquid crystal display elements have been widely used in various electronic devices such as a word processor, a computer screen, a mobile phone, or a liquid crystal television, the demand for polarizers has also increased. The polarizer is mainly provided with a PVA layer doped with a polarizing compound, and after the PV A layer blended with the polarizing compound is extended and oriented, the internal polarizing compound may continue to diffuse out of the PVA layer, so it is necessary to The TAC (tri-acetylcellulose) protective film is bonded to protect the polarizing compound in the pva layer M381791, but the strength of the TAC protective layer of the polymer itself is not ideal, and the polarizer is used for a long time, and there is still a problem of reliability. Moreover, the TAC protective film process requires extrusion, cooling, separation, hardening, winding, and stretching steps. The process steps are complicated and costly, accounting for 54% of all polarizer materials. [New content] In view of this, the present invention provides a polarizer protective film manufacturing device, which aims to provide a polarizing film suitable for use in a liquid crystal display, and replaces a protective film structure having a TAC protective film. The protective film of the present invention is made by a roll-to-roll continuous manufacturing device, so that both upper and lower protective films are smooth on both sides, and the upper and lower protective films are averaged in the visible light spectrum. The penetration rate exceeds 91%, and the phase delay generated by the light passing through the upper and lower protective films does not exceed 7 nm, so that the protective film can replace the conventional TAC protective film, which not only simplifies the process, but also greatly reduces the cost of the polarizer. [Embodiment] The present invention relates to a polarizer protective film manufacturing apparatus and a polarizer formed thereby, and the protective film manufacturing apparatus includes at least the auxiliary carrier 21 as shown in the first embodiment of the first drawing. The auxiliary carrier 21 is provided by an auxiliary carrier transport wheel 31. The auxiliary carrier 21 may be a substrate, and the substrate is provided with a release layer 22, which may be polyethylene terephthalate ( PET) or polyethylene (PE) material, and the release layer 22 may be a release film or an adhesive; the molding material provides a component 32 for providing a molding material 24, the molding M381791 material providing component 32 being attached to the auxiliary The carrier 21 is provided on the side, and the molding material supply unit 32 is provided with the molding material 24, and the auxiliary carrier 21 is provided with a molding layer 23, which may be a photocurable resin material (for example, UV glue material) or a thermosetting resin material; a mirror wheel 33 disposed behind the molding material supply unit 32 and mirror-finished on the molding layer 23 with respect to the molding layer 23 to form the molding layer 23 Thickness A mirror surface;
固化組件34，該固化組件34係設於預成型組件33後 方，使該成型層23固化成型；其中，該固化組件34可以 是UV燈或是加熱件（係依照成型材料之材質而定）； 分離組件35，該分離組件35係設於固化組件34後方， 由於該離型層22與輔助載體21間之黏著力大於離型層22與 成型材料23間之黏著力，用以將該成型層23與該輔助載體 21相互分離，以完成薄膜狀保護膜4之成品。 該分離組件35後進一步設有保護膜捲收組件36以及輔 助載體捲收組件37，該保護膜捲收組件36用以將成型之保 護膜4加以捲收，而該輔助載體捲收組件37則將輔助載體21 以及離型層22加以捲收可再回收利用。 另外，該製造裝置亦可如第二圖所示，該輔助載體21 可以為輸送輪，而該輸送輪表面預設有離型層22，同樣設 有成型材料提供組件32、預成型組件33、固化組件34以及 分離組件35，分別於該離型層22上進行佈滿成型材料24、 預成型步驟、固化成型步驟以及分離步驟，最後再由保護 膜捲收組件36將成型之保護膜4加以捲收而完成成品；當然 亦可於分離步驟後進行塗層處理，亦即於該分離組件之後 進一步設有一表面塗層處理組件（圖中未標示），使該保護 M381791 膜表面可形成有不同功能塗層（例如硬化塗層、抗眩層、超 廣視角骐等）。 而經由上述卷對卷（roll to roll)連續性製造裝置所完成 之保濩膜具有高透光性且雙面均為光滑面，且該保護膜在 可見光光譜的平均穿透率超過91%，且光線通過該保護膜 所產生之相位延遲不超過7nm，使該保護膜可取代習有7八(：： 保護膜’並大為降低偏光片之成本。 如第三圖所示，係該保護膜應用於偏光片中，該偏光 片1由上而下依序堆疊有：表面保護層u、上保護膜41、摻 合偏光化合物之PVA層12、下保護膜42、感壓膠層13以及 離型層14,其中，該上、下保護膜41、42係藉由上述之製 造裝置所製成，該製程中不需經過拉伸之步驟，故無偏振 效應，透光性較高，且該保護臈在可見光光譜的平均穿透 率超過91%，且光線通過該保護膜所產生之相位延遲不超 過 7nm ° 再者，可依所需於上保護膜上進一步形成有功能塗層 15 ’如第四圖所示，例如配合液晶顯示器的需求，為了增 加觀看的視角，在上保護膜上會塗佈例如廣視角（wide_view, wv)、超廣視角（superwideview，swv)或是極佳廣視角 (excellent wide view，EWV)等膜種。為了再強化上保護膜 的硬度’在上保護膜上會塗佈硬化塗層（hard coating , HC) °另外’為了避免在戶外或是強光下照射液晶螢幕而 產生眩光’在上保護膜上會塗佈抗反射（anti-refiecti〇n， AR)、低反射（l〇w refiectioll，lr)或抗眩（anti-glare , AG)塗 層。再者’亦可在上保護膜上加上延遲膜（retardation film) 來消除環境光的反射，用來改善高反射率及提高對比。 /yi 如上所述 不剧作提供偏光片保護膜另一較佳可行的 J造裝置’美依法提呈新型專利之申請；·，以上 所示’係本創作較佳實施例者，並非以此褐限 心’舉凡與本解之構造、裝置、特徵等近似、 田° ’均應屬本創作之創設目的及申請專利範圍之内。 【圖式簡單說明】 九第—圖係為本創作中偏光片保護膜製造裝置之結構示 忍圖。 第二圖係為本創作中偏光片保護膜製造裝置另一實施 例之結構示意圖。 Λ 第三圖係為本創作中保護膜應用於偏光片之結構示意 圖。 第四圖係為本創作中保護膜應用於偏光片另一實施例 之結構示意圖。 【主要元件符號說明】 偏光片1 表面保護層11 摻合偏光化合物之PVA層12 感壓膠層13 離型層14 功能塗層15 保護膜製造裝置2 輔助載體21 M381791The curing component 34 is disposed behind the preforming component 33 to cure the molding layer 23; wherein the curing component 34 can be a UV lamp or a heating component (depending on the material of the molding material); a separating component 35, which is disposed behind the curing component 34, because the adhesive force between the release layer 22 and the auxiliary carrier 21 is greater than the adhesion between the release layer 22 and the molding material 23 for forming the molding layer 23 is separated from the auxiliary carrier 21 to complete the finished product of the film-like protective film 4. The separation assembly 35 is further provided with a protective film retracting assembly 36 and an auxiliary carrier retracting assembly 37 for retracting the formed protective film 4, and the auxiliary carrier retracting assembly 37 is The auxiliary carrier 21 and the release layer 22 are retracted for recycling. In addition, the manufacturing device can also be as shown in the second figure. The auxiliary carrier 21 can be a conveying wheel, and the surface of the conveying wheel is pre-formed with a release layer 22, and is also provided with a molding material providing component 32, a preforming component 33, The curing component 34 and the separation component 35 are respectively formed on the release layer 22 by a molding material 24, a preforming step, a curing molding step, and a separation step, and finally the protective film 4 is formed by the protective film winding assembly 36. The product can be finished by winding up; of course, the coating treatment can be carried out after the separation step, that is, after the separation component, a surface coating treatment component (not shown) is further provided, so that the surface of the protection M381791 film can be formed differently. Functional coatings (eg hardened coatings, anti-glare layers, super wide viewing angles, etc.). The protective film completed by the roll to roll continuous manufacturing apparatus has high light transmittance and a smooth surface on both sides, and the average transmittance of the protective film in the visible light spectrum exceeds 91%. And the phase delay generated by the light passing through the protective film does not exceed 7 nm, so that the protective film can replace the conventional 7 (:: protective film ' and greatly reduce the cost of the polarizer. As shown in the third figure, the protection is The film is applied to a polarizer, and the polarizer 1 is sequentially stacked from top to bottom: a surface protective layer u, an upper protective film 41, a PVA layer 12 doped with a polarizing compound, a lower protective film 42, a pressure sensitive adhesive layer 13, and The release layer 14 is formed by the above-mentioned manufacturing apparatus, and the step of stretching is not required in the process, so that there is no polarization effect and the light transmittance is high, and The protection 臈 has an average transmittance of more than 91% in the visible light spectrum, and the phase delay generated by the light passing through the protective film does not exceed 7 nm. Further, a functional coating 15 ' can be further formed on the upper protective film as needed. As shown in the fourth figure, for example, with a liquid crystal display In order to increase the viewing angle of view, a film such as a wide viewing angle (wide_view, wv), a super wide viewing angle (swv), or an excellent wide viewing angle (EWV) may be applied to the upper protective film. In order to reinforce the hardness of the upper protective film, a hard coating (HC) is applied to the upper protective film. In addition, 'horror is generated to avoid illuminating the liquid crystal screen outdoors or under strong light' on the upper protective film. It will be coated with anti-refiecti〇n (AR), low-reflection (l〇w refiectioll, lr) or anti-glare (AG) coating. In addition, it can also be added to the upper protective film. A retardation film is used to eliminate the reflection of ambient light, which is used to improve the high reflectivity and improve the contrast. /yi As described above, the polarizer protective film is provided as another preferred J device. The application of the new patent; ·, the above shows the preferred embodiment of the creation, not the brown limit of the heart, and the structure, device, characteristics, etc. of the solution, Tian ° ' should belong to the creation of this creation Purpose and scope of application for patents. Brief Description: The nine-graph is the structural diagram of the polarizer protective film manufacturing device in the creation. The second figure is a schematic structural view of another embodiment of the polarizer protective film manufacturing device in the present invention. The structure of the protective film applied to the polarizer is the schematic diagram of the structure of the protective film applied to the polarizer in the present invention. [Main component symbol description] Polarizer 1 surface protective layer 11 PVA layer 12 with polarizing compound, pressure sensitive layer 13 Release layer 14 Functional coating 15 Protective film manufacturing device 2 Auxiliary carrier 21 M381791
離型層22 成型層23 成型材料24 辅助載體輸送輪31 成型材料提供組件32 鏡面輪33 固化組件34 分離組件35 保護膜捲收組件36 輔助載體捲收組件37 保護膜4 上保護膜41 下保護膜42Release layer 22 Forming layer 23 Molding material 24 Auxiliary carrier conveying wheel 31 Molding material supply assembly 32 Mirror wheel 33 Curing assembly 34 Separation assembly 35 Protective film retracting assembly 36 Auxiliary carrier retracting assembly 37 Protective film 4 Upper protective film 41 Lower protection Membrane 42
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