M441133 五、新型說明： 【新型所屬之技術領域】 種反射裝置，且特別是有關於一種 本新型是有關於一 反射膜。 【先前技術】 狄液晶顯示面板(L C D)所用之背光源已經從冷陰極射線 鲁官（CCFL)逐漸轉換成發光二極體(LED) 了。由於led為點 光源，要組成面光源才能做為LCD背光源之用。所以通常 會先封裝成LED光條(LED light bar)，形成線光源。再 D光條平行排列，形成面光源。目前LCD業者斜答止、、E 之要求包括高亮度、高散熱及省電。 卜、 為因應LED產業的蓬勃發展，軟板在LEd 應用亦顯重要，因應的相關產品也陸續出現。，上之 的备數白色反射保護膜。由於-般規格的聚酿=門 顯黃色，因此上述白色反射保護膜通常是在 $曰略 在 醯亞胺膜上塗上一層白色油墨而成。但是，在現軋的聚 製程中’ t經過高溫銲錫的組裝步冑，因此二光條的 中之環氧樹脂變黃，因而降低前述白色反射色油墨 射率。此外，前述白色反射保幾膜還有光穿透=的光反 題待解決，使得LED所發出的光線會自白色反太向的問 背面或側面漏出來。因此，若要解決上述漏一射保護骐的 色油墨的特性需兼備遮光性好、耐高溫、^，則白 黃化及撓曲性好等特性。具有上述：：性：：=龜裂、抗 目前的技術開發上仍有相當的困難度。 '由墨 3 M441133 亞胺膜護膜的作法為在—般規格的聚醯 =::_色二氧化鈦粉末，直接做成白色的聚酿亞 力疋大，法解決抗高溫黃化的問題，而且由於 差的Γιί 的白色二氧化鈦粉末，因而造成撓曲性變 【新型内容】 =此|新型之—態樣是在提供—種防漏光的反射 >。黑色㈣亞胺層與位於其上之白色油墨 二=胺層可以用來防止漏光’而白色油墨層可 隹^方式’上述黑色㈣亞胺層可選用—般市 售透光率崁多為1〇%的黑色聚醯亞胺膜。 依據另-實施方式，上述黑色聚酿亞胺 數最多為30Ppm/〇C。 '、、、祕係 依據再一實施方式 數至少為0.2 W/m.K。 依據又一實施方式 之LED用之向反射率白色背光油墨 上述黑色聚醯亞胺層的熱傳導係 上述白色油墨層可選用一般市售 【實施方式】 之叫新型—實财狀—獅漏光反射膜 構L。在第1圖中，反射膜1⑻的結構包括 …色聚醯亞胺f 110與白色油墨層120。黑色聚 n〇的厚度㈣為12_25G_，且其透料較佳為最^ 4 M441133 ίο%’以防漏光。白色油墨層120的厚度較佳為2_50 μιη， 且其光反射率輓佳為至少80%，以達到良好的光反射率。 上述黑色聚醯亞胺層no的材料的組成包括聚醯亞胺 與碳粉。上述碳粉除了可將聚醯亞胺的顏色改為黑色之 外，還具有增加聚醯亞胺熱傳導係數，以增加其散熱性的 功能。此外’還可以再選擇性地包括至少一種無機粉末， 以增加黑色聚醯亞胺層110的尺寸安定性，減少其熱膨脹 係處，增加其熱傳導係數’降低其光澤度，還可增加其外 籲觀質感。 上述聚醯亞胺係由至少一芳香族二胺與至少一芳香族 四羰酸二酐反應而成。 上述芳香族二胺例如可為對苯二胺（1，4 diamino benzene)、間苯二胺（1,3 diamino benzene)、4,4’-二胺基二 苯 (4,4’-oxydianiline) 、3,4’-二胺基二苯醚 (3,4’-oxydianiline)、4,4，-二胺基二笨烷（4,4，-methylene dianiline)、二對苯二胺(N，N，_Diphenylethylenediamine)，二 鲁胺基二苯酮（diaminobenzophenone)、二胺二苯基楓(diamino diphenyl sulfone)、二奈二胺（l，5-naphenylene diamine)、二 胺基二苯硫謎(4,4’-diamino diphenyl sulfide)、1，3-雙（3-胺 基盼氧基）苯（l，3-Bis(3-aminophenoxy)benzene)、1，4-雙（4-胺基酴氧基）苯（1，44丨5(4-&111丨110卩1^110\)^611261^)、1,3-雙(4-胺基酌·氧基）苯（l，3-Bis(4-aminophenoxy)benzene)、2,2-雙 [4-(4- 胺基酚 氧基）苯基]丙烷 (2,2-Bis[4-(4-aminophenoxy)phenoxy]propane)、4,4’-雙（4-胺基齡氧基）聯笨 4,4’-bis-(4-aminophenoxy)biphenyl)、4,4’- 5 M441133 雙 （3- 胺基酚 氧基）聯苯 4,4’-bis-(3-aminophenoxy)biphenyl)、1，3-二丙胺基-1，1,3,3-四 甲基二 矽氧烷 (l，3_Bis(3-aminopropyl)-l,l,3,3-tetramethyldisiloxane)、1，3-— 丙胺基 _1，1，3,3- 四本基 ·一 梦氧烧 (l，3-Bis(3-aminopropyl)-l，l，3,3-tetraphenyldisiloxane)、1,3-二丙胺基-1，1-二曱基-3,3-二苯基二矽氧烷 (l，3-Bis(aminopropyl)-dimethyldiphenyldisiloxane)或上述 鲁之任意組合。 上述芳香族四羰酸二酐例如可為均苯四甲酸二酐 (1,2,4,5-benzene tetracarboxylic dianhydride)、聯苯四竣酸 二酐（3,3’,4,4’-biphenyl tetracarboxylic dianhydride)、二苯 喊四酸二酐（4,4’-oxydiphthalic dianhydride)、二苯酮四叛酸 二肝（benzophenone tetracarboxylic dianhydride)、二苯基楓 四叛酸二肝（3,3’，4,4'-diphenylsulfone tetracarboxylic dianhydride)、奈基四酸二酐（1，2,5,6 -naphthalene φ tetracarboxylic dianhydride)、萘二酸針（naphthalene tetracaboxylic dianhydride)、雙-(3，4-苯二曱酸酐）二曱基 硅 烷 （bis(3,4-dicarboxyphenyl)dimethylsilane dianhydride )、1，3-雙（3，4-二二羧基笨基)_i，1，3，3 — 四曱基二石夕氧院二針（l，3-bis(4，-phthalic anhydride)-tetramethyl disiloxane)或上述任意組合。 上述碳粉為由石油或木炭或其他有機物完全或不完全 燃燒所產生之碳黑、碳粉、石墨、碳球、碳管、石墨烯或 上述物質之任意組合。碳粉的含量較佳為1 _ 49 wt%，更 6 M441133 佳為3-30 wt%。因為若其大於49 wt%時，則會造成分散 不均勻的現象；若其小於1 wt°/〇時，則會使得聚醯亞胺膜 之透光率偏高（大於10%)，而無法避免漏光的問題。 上述無機粉末的材料例如可為銘粉、氧化銘粉、氮化 鋁、氮化硼、碳化矽、雲母粉、二氧化矽粉、滑石粉、陶 瓷粉、黏土粉、矽膠燒結粉末雲或上述之任意組合。無機 粉末的含量較佳為1 -49 wt%，更佳為20 - 40 wt%。因為 若其大於49 wt%時，則會造成分散不均勻的現象；但若其 鲁小於1 wt%時，則會使得所添加之無機粉末無法發揮上述 之有關無機粉末之功效，例如減少其熱膨脹係處，增加其 熱傳導係數，降低其光澤度，還可增加其外觀質感。 上述碳粉及無機粉末之粒徑較佳為0.1 - 10微米，更 佳為0.5 -6微米，因為無機粉末或碳粉材料的粒徑太大或 太小均會對於聚醯亞胺膜造成不良的影響。若無機粉末或 碳粉材料的粒徑大於10微米時，則所製成的聚醯亞胺膜之 表面過於粗糖，而不適用於電子產品中。另一方面，若無 Φ機粉末或碳粉的粒徑小於0.1微米時，則無機粉末或碳粉 材料容易產生聚集的現象，造成在聚醯亞胺膜中分散不均 勻的問題，並且在製程操作上不易控制。 在製備黑色聚醯亞胺層110的過程中，可讓上述碳粉 或者是碳粉及無機粉末在溶劑中先與芳香族二胺均勻地混 合，然後再添加芳香族四羰酸二酐。接著進行混合溶液的 塗膜步驟，再加熱之，讓芳香族二胺與芳香族四羰酸二酐 進行聚合反應形成聚醯胺酸中間產物。然後，再次加熱， 讓聚醯胺酸中間產物進一步反應，形成聚醯亞胺的最後產 7M441133 V. New description: [New technical field] A kind of reflecting device, and especially related to one. The present invention relates to a reflecting film. [Prior Art] The backlight used in the liquid crystal display panel (L C D) has been gradually converted from a cold cathode ray (CCFL) to a light emitting diode (LED). Since led is a point source, a surface light source can be used as an LCD backlight. Therefore, it is usually packaged into an LED light bar to form a line source. The D light bars are arranged in parallel to form a surface light source. At present, the LCD industry's requirements for slanting and answering, E, include high brightness, high heat dissipation and power saving. In order to cope with the vigorous development of the LED industry, the application of soft boards in LED is also important, and related products are also appearing. , the white reflective protective film on the top. The above-mentioned white reflective protective film is usually formed by applying a layer of white ink to the yttrium imide film due to the yellow color of the general specification. However, in the current rolling process, the assembly process of the high-temperature solder is carried out, so that the epoxy resin in the two-light strip becomes yellow, thereby lowering the white reflective ink yield. In addition, the aforementioned white reflective film also has a light penetration = light problem to be solved, so that the light emitted by the LED will leak out from the white back side or the side. Therefore, in order to solve the above characteristics of the ink of the leakage protection 需, it is required to have both good light shielding properties, high temperature resistance, and whitening and good flexibility. With the above:: Sex:: = crack, anti-current technology development still has considerable difficulty. 'The method of the film of the M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M Due to the poor Γιί white titanium dioxide powder, it causes a change in flexibility [new content] = this new type - is to provide a kind of reflection of light leakage. The black (iv) imine layer and the white ink bis-amine layer on it can be used to prevent light leakage. The white ink layer can be used in the manner of the above black (tetra) imine layer. The commercially available light transmittance is usually 1 〇% black polyimide film. According to another embodiment, the above black polyienimine number is at most 30 Ppm/〇C. ',,, secret system According to the other embodiment, the number is at least 0.2 W/m.K. According to still another embodiment of the present invention, the reflectance white backing ink for the LED is used for the thermal conduction of the black polyimine layer. The white ink layer can be selected from the general commercially available [embodiment], which is called a new type of solid-rich lion-light leakage reflecting film. Structure L. In Fig. 1, the structure of the reflective film 1 (8) includes a color polyimine f 110 and a white ink layer 120. The thickness of the black poly(n) is 12_25G_, and the transmittance thereof is preferably the most ^4 M441133 ίο%' to prevent light leakage. The white ink layer 120 preferably has a thickness of 2 to 50 μm and a light reflectance of at least 80% to achieve good light reflectance. The composition of the material of the above black polyimine layer no includes polyimine and carbon powder. In addition to changing the color of the polyimide to black, the above toner has a function of increasing the heat transfer coefficient of the polyimide to increase its heat dissipation. In addition, it is also possible to selectively include at least one inorganic powder to increase the dimensional stability of the black polyimine layer 110, reduce its thermal expansion coefficient, increase its heat transfer coefficient to reduce its glossiness, and increase its external appeal. Look at the texture. The polyimine is formed by reacting at least one aromatic diamine with at least one aromatic tetracarboxylic acid dianhydride. The above aromatic diamine may be, for example, 1,4 diamino benzene, 1,3 diamino benzene, 4,4′-diaminobiphenyl (4,4′-oxydianiline). , 3,4'-oxydianiline, 4,4,-diethylene dianiline, di-p-phenylenediamine (N, N, _Diphenylethylenediamine), diaminobenzophenone, diamino diphenyl sulfone, 1,5-naphenylene diamine, diaminodiphenyl thiol (4 , 4'-diamino diphenyl sulfide), 1,3-bis(3-aminophenoxy)benzene, 1,4-bis(4-aminooxyl) Benzene (1,44丨5(4-&111丨110卩1^110\)^611261^), 1,3-bis(4-amino-based oxy)benzene (l,3-Bis (4-aminophenoxy)benzene), 2,2-Bis[4-(4-aminophenoxy)phenoxypropane), 4, 4'-bis(4-aminophenoxy)biphenyl 4,4'-bis-(4-aminophenoxy)biphenyl), 4,4'- 5 M441133 bis(3-aminophenoloxy)biphenyl 4 ,4'-bis-(3-aminophe Noxy)biphenyl), 1,3-dipropylamino-1,1,3,3-tetramethyldisiloxane (1,3_Bis(3-aminopropyl)-l,l,3,3-tetramethyldisiloxane), 1 , 3-- propylamino-1,1,3,3-tetrabenyl-(1-aminopropyl)-l,l,3-tetraphenyldisiloxane, 1,3- Diethylamino-1,1-diisopropyl-3,3-diphenyldisiloxane (1,3-(dipropyl)-dimethyldiphenyldisiloxane) or any combination of the above. The above aromatic tetracarboxylic dianhydride may be, for example, pyromellitic dianhydride (1,2,4,5-benzene tetracarboxylic dianhydride) or biphenyltetraruic dianhydride (3,3',4,4'-biphenyl Tetracarboxylic dianhydride, 4,4'-oxydiphthalic dianhydride, benzophenone tetracarboxylic dianhydride, diphenyl maple tetrahydro acid (3,3', 4,4'-diphenylsulfone tetracarboxylic dianhydride, 1,2,5,6-naphthalene φ tetracarboxylic dianhydride, naphthalene tetracaboxylic dianhydride, bis-(3,4-benzene Bismuth hydride (bis(3,4-dicarboxyphenyl)dimethylsilane dianhydride ), 1,3-bis(3,4-dicarboxyl phenyl) _i,1,3,3 - tetradecyl bismuth 2-, 4-bis(4,-phthalic anhydride)-tetramethyl disiloxane or any combination of the above. The above carbon powder is carbon black, carbon powder, graphite, carbon spheres, carbon tubes, graphene or any combination of the above, which is produced by complete or incomplete combustion of petroleum or charcoal or other organic matter. The content of the carbon powder is preferably from 1 to 49 wt%, and more preferably from 6 to 40,441%. Because if it is greater than 49 wt%, it will cause uneven dispersion; if it is less than 1 wt ° / ,, the transmittance of the polyimide film will be higher (greater than 10%), but not Avoid the problem of light leakage. The material of the above inorganic powder may be, for example, Ming powder, oxidized powder, aluminum nitride, boron nitride, tantalum carbide, mica powder, cerium oxide powder, talc powder, ceramic powder, clay powder, tantalum sintered powder cloud or the like. random combination. The content of the inorganic powder is preferably from 1 to 49% by weight, more preferably from 20 to 40% by weight. Because if it is greater than 49 wt%, it will cause uneven dispersion; but if it is less than 1 wt%, the added inorganic powder will not be able to exert the above-mentioned effects of the inorganic powder, for example, reduce its thermal expansion. Department, increase its heat transfer coefficient, reduce its gloss, and increase its appearance texture. The particle diameter of the above carbon powder and inorganic powder is preferably from 0.1 to 10 μm, more preferably from 0.5 to 6 μm, because the particle size of the inorganic powder or the carbon powder material is too large or too small to cause a defect to the polyimide film. Impact. If the particle size of the inorganic powder or the carbon powder material is larger than 10 μm, the surface of the resulting polyimide film is too coarse and is not suitable for use in an electronic product. On the other hand, if the particle size of the powder or the carbon powder of the Φ-free machine is less than 0.1 μm, the inorganic powder or the carbon powder material is liable to cause aggregation, which causes a problem of uneven dispersion in the polyimide film, and is in the process. It is not easy to control in operation. In the process of preparing the black polyimine layer 110, the above carbon powder or carbon powder and inorganic powder may be uniformly mixed with an aromatic diamine in a solvent, and then aromatic tetracarboxylic acid dianhydride may be added. Next, a coating step of the mixed solution is carried out, and heating is further carried out to cause polymerization of the aromatic diamine and the aromatic tetracarboxylic acid dianhydride to form a poly-proline intermediate product. Then, heating again, allowing the polyamine acid intermediate to react further to form the final product of polyimine.