Claims (1)
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Ϊ : 丨93 d 3 ’j Γ]： 拾、申請專利範圍： 1· 一種平面顯示器背光模組之擴散膜製造方法，係用 以製造一擴散膜，此方法包括·· - (a)提供一透明基板，該透明基板具有一上表面； 5 (b)塗佈一光硬化型或熱硬化型接著劑於該透明基板之 表面，其中該接著劑含有複數個散射粒子； (0提供一光學鑷子陣列裝置，用以利用光壓差產生複 數個光陷阱； (d) 利用該光學鑷子陣列擷取該接著劑中之該散射粒 · 10子，並於該透明基板之表面之該接著劑移動該散射粒子； (e) 硬化該接著劑以固定該些散射粒子；以及 (f) 塗佈一保護層於該接著劑之上。 2·如申請專利範圍第丨項所述之擴散膜製造方法，其中 該透明基板係由聚乙烯對苯二甲酸脂（pET)、聚碳酸酯（pc) 15或聚甲基丙烯酸曱酯（PMMA)所構成。 3·如申請專利範圍第丨項所述之擴散膜製造方法，其中 該散射粒子係由碳酸鈣（CaC〇3)、二氧化矽（silica)、二氧化 · 鈦、丙醯酸系高分子（aci7lic polymer)、矽樹脂高分子（silicon reSm)、聚笨乙烯高分子（poly(styrene))、聚乙烯高分子 20 (poly(ethylene))或聚碳酸 g旨（p〇iyCarb〇nate)所構成。 * 4·如申請專利範圍第3項所述之擴散膜製造方法，其中 . 該散射粒子之粒徑係介於l-ΙΟμιη之間。 5·如申請專利範圍第丨項所述之擴散膜製造方法，其中 該接著劑為聚丙醯酸系或聚甲基丙醯酸系高分子。 13 1230300 6. 如申請專利範圍第5項所述之擴散膜製造方法，其中 該保護層之組成成分係與該接著劑之组成成分相同。 7. 如申請專利範圍第1項所述之擴散膜製造方法，其中 該平面顯示器係為液晶顯示器。 5 8'種平面顯不器背光模組之擴散膜製造方法，係用 以製造一擴散膜，此方法包括： (i)提供一透明基板單體溶液； (11)加入複數個散射粒子於該透明基板單體溶液之中； (in)提供一光學鑷子陣列裝置，用以利用光壓差產生 10 複數個光陷阱； (iv) 利用該光學鑷子陣列擷取該散射粒子以控制該散 射粒子於該透明基板單體溶液中之分佈； (v) 硬化該透明基板單體溶液以形成一透明基板，並固 定該散射粒子。 15 9.如申請專利範圍第8項所述之擴散膜製造方法，其中 該透明基板單體溶液係由丙烯酸（acrylic)或聚曱基丙烯酸甲 酯（PMMA)所構成。 10·如申請專利範圍第8項所述之擴散膜製造方法，其中 該散射粒子係由碳酸鈣（CaCOO、二氧化矽（Siiica)、二氧化 20鈦、丙醯酸系高分子（acrylic polymer)、矽樹脂高分子（siHc〇n resin)、聚苯乙稀高分子（p〇iy(styrene))、聚乙稀高分子 (poly(ethylene))或聚碳酸酯（polycarbonate))所構成。 11·如申請專利範圍第ίο項所述之擴散膜製造方法，其 中該散射粒子之粒徑係介於ΜΟμηι之間。 1230300 12.如申請專利範圍第8項所述之擴散膜製造方法，其中 該步驟（iv)係控制該散射粒子平均分佈於該透明基板單體溶 液中。* ------------------- 1 Bu "", t Bu., ``. 丨 * S; < · ..:,. 1- .. ,-; I 'ί -ν .;' ·· ^ -v-! ♦: · • V »;.,. A method for manufacturing a diffusion film of a backlight module is used to manufacture a diffusion film. The method includes: (a) providing a transparent substrate having an upper surface; 5 (b) coating a light-hardening type or A thermosetting adhesive on the surface of the transparent substrate, wherein the adhesive contains a plurality of scattering particles; (0 provides an optical tweezers array device for generating a plurality of light traps using a light pressure difference; (d) using the optical tweezers The array captures the scattering particles in the adhesive and moves the scattering particles on the surface of the transparent substrate; (e) hardening the adhesive to fix the scattering particles; and (f) coating A protective layer is provided on the adhesive. 2. The method for manufacturing a diffusion film as described in item 丨 of the application, wherein the transparent substrate is made of polyethylene terephthalate (pET), polycarbonate. (Pc) 15 or polymethyl methacrylate (PMMA). 3. The method for manufacturing a diffusion film according to item 丨 of the application, wherein the scattering particles are made of calcium carbonate (CaCO3), dioxide Silicone, titanium dioxide, titanium, aci7lic polymer, silicon reSm, poly (styrene), polyethylene 20 (poly ( ethylene)) or polycarbonate (p〇iyCarbonate). * 4. The method for manufacturing a diffusion film as described in item 3 of the scope of patent application, wherein the particle diameter of the scattering particles is between 1 and 10 μιη 5. The method for manufacturing a diffusion film according to item 丨 in the scope of the patent application, wherein the adhesive is a polypropionic acid-based or polymethylpropionate-based polymer. 13 1230300 6. As the fifth in the scope of patent application The method for manufacturing a diffusion film according to the above item, wherein the composition of the protective layer is the same as the composition of the adhesive. 7. The method for manufacturing a diffusion film according to item 1 of the patent application scope, wherein the flat display is a liquid crystal Display: 5 8 'flat display A method for manufacturing a diffusion film of an optical module is used to manufacture a diffusion film. The method includes: (i) providing a transparent substrate monomer solution; (11) adding a plurality of scattering particles to the transparent substrate monomer solution; (in) providing an optical tweezers array device for generating 10 light traps by using light pressure difference; (iv) using the optical tweezers array to capture the scattering particles to control the scattering particles in the transparent substrate monomer solution Distribution; (v) hardening the transparent substrate monomer solution to form a transparent substrate, and fixing the scattering particles. 15 9. The method for manufacturing a diffusion film according to item 8 in the scope of the patent application, wherein the transparent substrate monomer solution is composed of acrylic or polymethyl methacrylate (PMMA). 10. The method for manufacturing a diffusion film according to item 8 in the scope of the patent application, wherein the scattering particles are made of calcium carbonate (CaCOO, silicon dioxide (Siiica), titanium dioxide 20, acrylic polymer) , Silicon resin polymer (siHcon resin), polystyrene polymer (poiy (styrene)), polyethylene polymer (poly (ethylene) or polycarbonate (polycarbonate)). 11. The method for manufacturing a diffusion film according to item ίo in the scope of the patent application, wherein the particle diameter of the scattering particles is between μm and μm. 1230300 12. The method for manufacturing a diffusion film according to item 8 of the scope of patent application, wherein step (iv) is to control the scattering particles to be evenly distributed in the transparent substrate monomer solution.
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