200305620 ⑴ 玖、發明說明 【發明所屬之技術領域】 本發明係有關含有對屬於可視光、近紅外光特定波長 具有篩選性吸收功能與電磁波遮蔽功能的毫微條狀金屬之 組成物、塗膜、高分子薄膜、及以此高分子薄膜所成濾光 器和其用途。 【先前技術】 光照射在金屬微粒子上時，會產生共鳴吸收現象（ Plasemon Absorption);吸收現象隨金屬種類與形狀之不 同而吸收波長各異；如球狀之金屬微粒子分散於水中形成 之膠體金屬，在5 3 0nm附近爲其吸收範圍，微粒子的形狀 爲短軸10nm之條狀時，除因條狀短軸之故在53 0nm附近的 吸收之外，因爲條狀長軸的關係，也有在長波長側的吸收 ;可用調整短軸與長軸之比的方法，來達到吸收所希望波 長的目的（例如，S-S.Changetal，Langmuir，1999， 1 5 . p 7 (Η - 7 0 9) 〇 雖然先前就知道金屬微粒子會顯現共鳴吸收現象，但 是卻不淸楚利用此現象的塗佈組成物，也就是塗料組成物 ;而且也不知曉利用含有特定形狀的金屬微粒子，對可視 光、近紅外光之特定波長所具吸收效果而成的高分子薄膜 〇 例如日本特開平1 1 -80647號公報以及特開平1 1-319538號公報上，雖然有含貴金屬、銅之膠體粒子與高分 (2) (2)200305620 子顏料分散劑的膠體溶液之記載，但只是以提高塗料的著 色性、溶液的安定性爲目的，並非爲獲取因特定金屬微粒 子的形狀而對近紅外光產生的吸收效果，電磁波遮蔽效果 〇 又，日本特表平9-50621 0號公報上，雖然也有金屬碳 化物毫微粒子及其製造方法的記載，但是對於以特定金屬 微粒子的短軸與長軸之比，能提高近紅外光的吸收功能， 完全不認識，對以此做爲塗料的具體化及使用於光學材料 上都沒有任何提示。 又’爲形成金屬配線圖型，知悉使用直徑小於1 〇 〇 n m 、長軸/短軸比大於1之共鳴吸收無機微粒子，附載於固體 表面成長之微細條狀物（日本特開200 1 -64794號公報上記載 );此法爲使微細條狀物在附載於固體表面的狀態下成長 ，但卻不能分散於各種溶媒及黏著成份，因而不可能塗料 化；又，金屬微粒子之共鳴吸收只是利用在合成過程的成 長目的，並非利用在使因毫微條狀金屬之長軸而對可視光 、近紅外光之特定波長產生篩選性吸收上。 另一方面，日本特開2000-288 1 3號公報上記載，以金 屬微粒子分散而得之樹脂薄膜，層合後形成具有電磁波遮 蔽功能的濾光器。以具有近紅外光遮蔽功能的樹脂組成物 經層合而得之濾光器；又，日本特開2000-56 1 27號公報有 ’對電磁波與近紅外光具遮蔽功能之濾光器的記載；但是 ，前者之具近紅外光遮蔽功能的樹脂組成物，爲含有具不 飽和二重結合之單體、磷原子、銅原子之聚合體；後者是 -9- (3) (3)200305620 由於銀薄膜與氧化物薄膜之交互層合，而對電磁波與近紅 外光具有遮蔽效果；都不是使用毫微條狀金屬。 以光之三原色紅、綠、及藍爲著色目的，日本特開 200 1 - 1 088 1 5號公報上有如下的記載，將對特定波長且篩 選性吸收功能之染料，分散於黏著成份，經塗佈而得之塗 膜，可製成濾光器的方法。 又，以遮斷近紅外光爲目的，日本特開平2002-022935號公報上有如下記載，將對750nm〜llOOnm波長具篩 選性吸收功能之染料，分散於黏著成份，經塗佈而得之塗 膜，可製成濾光器的方法。 對獲得耐光性良好，具有適當色補正功能的濾光器之 製造方法，日本特開200 1 -664 1 9號公報上有如下之記載， 以對特定波長範圍具有極大吸收功能的色澱（Lake)顏料， 分散於黏著成份，經塗佈而得之塗膜，可製成濾光器的方 法。 【發明內容] [發明之揭示] 有鑑於先前技術之種種課題，本發明提出一種塗佈組 成物、塗佈組成物塗佈後之塗膜、塗膜所形成之濾光器等 之用途；本發明以含有對特定長軸長度與長軸/短軸比之 特定波長具吸收氣導電性的毫微條狀金屬、含有爲色補正 的染料及對780nm以下波長範圍具吸收功能的顏料，含有 導電性援與性的毫微線狀金屬，經適當組合而成對波長 -10- (4) (4)200305620 400nm〜2000nm之可視光，近紅外光具有篩選性吸收功能 ，同時具有電磁波遮蔽功能之組成物，與以此組成物形成 之塗佈組成物；本發明更提供，以上述毫微條狀金屬、染 料、顏料、毫微線狀金屬等所得對波長400nm〜2000nm之 可視光、近紅外光具有篩選性吸收功能、同時具有電磁波 遮蔽功能之高分子薄膜、以此高分子薄膜形成濾光器等之 用途。 本發明可以提供，由下列各項構成的含毫微條狀金屬 之組成物、塗膜、高分子薄膜、濾光器等等。 (1) 一種組成物，其特徵爲含有長軸低於400nm、長軸 /短軸比大於1的金屬微粒子（以下稱爲「毫微條狀金屬」） 〇 (2) 如上述（1)記載之含毫微條狀金屬之組成物’其特 徵爲含有毫微條狀金屬與染料。 (3) 如上述（1)記載之含毫微條狀金屬之組成物，其特 徵爲含有毫微條狀金屬與在7 80nm以下之波長範圍具有篩 選性吸收功能的顏料。 (4) 如上述（1)記載之含毫微條狀金屬之組成物，其特 徵爲含有毫微條狀金屬、與以長軸在400nm以上而短軸在 50nm以下爲特徵之線狀金屬微粒子（以下稱爲「毫微線狀 金屬」）。 (5) 如上述（1)〜（4)任一項記載之組成物，其特徵爲形 成對波長4 0 0〜2 0 0 0 n m的可視光、近紅外光範圍之特定波長 具有篩選性吸收功能的吸收層。 -11 - 200305620 (5) (6) —種塗佈組成物，其特徵爲含有上述（1)〜（5)之含 毫微條狀金屬的組成物。 (7) —種塗膜，其特徵爲由上述（6)所形成，對波長 400〜2000nm的可視光、近紅外光範圍之特定波長具有篩選 性吸收功能。 (8) —種塗膜，其特徵爲由上述（6)之塗佈組成物所形 成，具有光吸收功能以及電磁波遮蔽功能。 (9) 一種導電性塗膜，其特徵爲由上述（6)之塗佈組成 物所形成，其表面電阻在2.5 Ω /□以下。 (10) —種瀘光器，其特徵爲由上述（6)之塗佈組成物所 形成的塗膜，在基材表面或基材之間形成而成。 (11) 一種電磁波遮斷用濾光器，其特徵爲含有由上述 (6)之塗佈組成物所形成之塗膜。 (12) —種電漿顯示面板（PDP)用濾光器，其特徵爲含有 由上述（6)之塗佈組成物所形成之塗膜。 (13) —種彩色濾光片用濾光器，其特徵爲含有由上述 (6)之塗佈組成物所形成之塗膜。 (14) 一種熱線遮斷用濾光器，其特徵爲含有由上述（6) 之塗佈組成物所形成之塗膜。 (15) —種高分子薄膜，其特徵爲以上述（1)〜（5)之含毫 微條狀金屬組成物，分散在黏著成份（樹脂）中而成。 (16) 如上述（15)記載之高分子薄膜，其特徵爲形成對波 長400nm〜2000nm的可視光、近紅外光範圍之特定波長具有 篩選性吸收功能的吸收層。 -12- (6) (6)200305620 (17) 如上述（15)或（16)記載之高分子薄膜，其特徵爲具 有電磁波遮蔽功能。 (18) 如上述（15)或（16)記載之高分子薄膜，其特徵爲具 有表面電阻在2.5 Ω/□以下之導電性。 (19) 一種濾光器，其特徵爲由上述（15)〜（18)任一種高分 子薄膜所形成，對波長400nm〜2000nm的可視光，近紅外光 具有篩選性的吸收功能。 (20) —種電磁波遮斷用濾光器，其特徵爲由上述 (15)〜（18)任一種高分子薄膜所形成。 (21) —種電漿顯示面板（PDP)用濾光器，其特徵爲由上 述（15)〜（18)任一種高分子薄膜所形成。 (22) —種濾光器，其特徵爲由上述（15)〜（18)任一種高分 子薄膜，在透明基材的表面層合而成，或介存於透明基材之 間而成。 (23) —種彩色濾光片用濾光器，其特徵爲由上述 (15)〜（18)任一種高分子薄膜所形成。 (24) —種熱線遮斷用濾光器，其特徵爲由上述（15)〜（18) 任一種高分子薄膜所形成。 以本發明之含毫微條狀金屬之組成物所成之塗佈組成物 ，在透明基材表面形成塗膜、或塗膜形成後在基材表面與其 他基材形成層合等方法於基材之間形成塗膜，可得對可視光 、近紅外光具有篩選性吸收功能以及電磁波遮蔽功能的濾光 器；同樣的，以本發明之含毫微條狀金屬之組成物，加入黏 著成份（樹脂）中混合分散、成形爲薄膜狀的高分子薄膜，在 -13- (7) (7)200305620 透明基板上層合、或以複數的透明基板夾在中間而形成濾光 層，也可以獲得對可視光、近紅外光具有篩選性吸收功能以 及電磁波遮蔽功能的濾光器；上述塗膜與塗膜所形成濾光器 、高分子薄膜、高分子薄膜所成濾光器，對波長 400nm〜2000nm的可視光，近紅外光都具有篩選性吸收功能 以及電磁波遮蔽功能；本發明之塗膜、高分子薄膜、濾光器 含有上述毫微條狀金屬者較佳，對特定的構造、製造方法， 沒有任何限制；而且，塗膜、高分子薄膜、濾光器對毫微條 狀金屬而言，以含有者對波長400nm〜2000nm的可視光，近 紅外光，電磁波較具吸收功能乃至遮蔽功能，毫微條狀金屬 之添加量（含有量）隨使用目的之不同，而做適當的調整。 以本發明之塗膜、高分子薄膜、濾光器可以形成表面電 阻在2.5 Ω/□以下的導電性塗層；此形成之導電性塗層可以 做爲電漿顯示面板（PDP)用的濾光器；又，本發明之塗膜、 高分子薄膜、濾光器，對波長400nm〜2000nm的可視光、近 紅外光具有優良的篩選性吸收功能，可利用爲彩色濾光片用 濾光器；而且本發明之塗膜、高分子薄膜、濾光器，具有優 異的電磁波遮蔽功能，可利用爲電磁波遮斷用的濾光器。 [用以實施發明之最佳型態] 就本發明之實施型態，做如下之具體說明。 本發明之組成物、塗膜、高分子薄膜、濾光器之特徵爲 含有長軸低於400nm、長軸/短軸比大於1的條狀金屬微粒子（ 毫微條狀金屬）；此含毫微條狀金屬之組成物、塗膜、高分 14- (8) (8)200305620 子薄膜、濾光器，對波長400nm〜2000nm的可視光，近紅外 光之特定波長，具有篩選性吸收功能，同時獲得表面電阻在 2.5 Ω/□以下以下之導電性，因而具有電磁波遮蔽功能。 以本發明之含毫微條狀金屬之組成物，加入溶媒、黏著 成份（樹脂）中分散之，必要時可添加染料、顏料、毫微線狀 金屬等，可以獲得所希望的塗佈組成物；具體的說，將上述 含毫微條狀金屬之組成物，加入塗料成份中混合而形成塗佈 組成物，即可得到塗佈組成物；毫微條狀金屬之添加量、毫 微條狀金屬以外的溶媒、黏著成份（樹脂）、分散劑、添加劑 等則可依使用條件做適當選擇；將本發明之毫微條狀金屬分 散，也包括塗佈組成物用之水分散液在內；又，有關本發明 塗佈組成物之使用方法沒有特別的限制；含毫微條狀金屬之 塗佈組成物，可以使用毛刷塗佈、噴霧塗佈、滾輪塗佈、旋 轉塗佈、浸漬塗佈等之各種塗佈方法；又，不只是塗佈，也 可以使用將含毫微條狀金屬之組成物注入鑄型成形的方法， 射出成形的方法，將含毫微條狀金屬之組成物加入黏著成份 (樹脂）中混合而成形的方法，此等並無限制。 毫微條狀金屬的金屬種類中，可以使用金、銀、銅、以 及此等之合金；本發明使用的毫微條狀金屬，長軸低於 400nm、長軸/短軸比大於1 ;以長軸/短軸比在2〜10之間最適 合；長軸在4〇〇nm以上時，分散於溶媒中，難以得到安定的 膠狀分散液；長軸/短軸比等於1時，只能獲得與球狀金屬微 粒子分散於溶媒而得膠狀分散液相同的吸收，不能得到對可 視光以及近紅外光任意波長的篩選性吸收效果。 -15- (9) (9)200305620 使用長軸低於400nm、長軸/短軸比大於1之毫微條狀金 屬時，由於毫微條狀金屬長軸波長吸收能之故，致可以對波 長400nm〜2000nm的可視光、近紅外光之特定波長，具有篩 選性吸收效果；又，毫微條狀金屬短軸吸收能之吸收範圍存 在於可視光範圍之530nm附近，因而短軸之長度在2nm以下 時，可以忽略其影響；沒有可視光吸收帶的毫微條狀金屬分 散後之組成物、塗膜、高分子薄膜、濾光器，具有透明性； 毫微條狀金屬之短軸長度大於2nm，波長吸收能在530nm附 近就算有吸收存在，與在能獲得補色效果的波長範圍具有吸 收的染料，在780nm以下波長範圍具有篩選性吸收功能的顏 料相組合，可得到無色彩的毫微條狀金屬分散後之組成物、 塗膜、高分子薄膜、濾光器；本發明使用之毫微條狀金屬其 長軸在400nm以下，以在200nm以下更適合；其分散於溶媒 後，難以用肉眼辨識其粒子。 上述毫微條狀金屬具導電性之故，含有此毫微條狀金屬 之組成物，對電磁波具有遮蔽功能；含毫微條狀金屬之組成 物，塗佈於基材表面，可以形成導電性塗膜；含有毫微條狀 金屬與毫微線狀金屬倂用之毫微條狀金屬之組成物，與不含 毫微線狀金屬之毫微條狀金屬之組成物相比較中，可得表面 電阻低的塗膜、高分子薄膜、濾光器。 本發明使用的染料，一般以可獲得光之三原色的紅、綠 、及藍（依目的之不同，也可以使用紅、綠、藍之補色系）之 著色者都可使用，染料沒有特別的限制；如紅色的著色層爲 偶氮系染料等、綠色的著色層爲酞青系染料等、藍色之著色 -16- 200305620 do) 層爲蒽醌系染料等具代表性者，此等也沒有任何限制。 本發明使用的顏料，一般不溶於溶媒而呈粒子色’以可 獲得光之三原色紅、綠、及藍（依目的之不同，可使用其補 色系）之著色著都可使用，顏料沒有特別的限制；如鎘紅、 鉬紅、紅色氧化鐵、鉛丹、喹吖酮紅等之紅色著色層，鉻綠 、氧化鉻、酞青綠等之綠色著色層，鈷藍、普魯土藍、群青 、酞青藍等之藍色著色層等具代表性者都可使用，此等也沒 有限制。 本發明使用的毫微線狀金屬，長軸爲400nm以上，短軸 50nm以下，較佳者爲長軸450nm〜1500nm，短軸lnm〜45nm ，長軸/短軸比在20以上；此毫微線狀金屬爲細長之纖維狀 ，呈保持適當間隔同時互相纏繞的狀態，可獲得表面電阻在 1.0Ω/□以下之優良導電性，因而可得高電磁波電磁波遮蔽 功能；金屬種類、長軸長度、長軸/短軸比等，可依使用目 的而定。 毫微線狀金屬，可按照N.R.Jana，L.Gearheart and CJ.Murphy 的方法 （C h m . C o m mu η ·，2 0 0 1，9 6 1 7 〜9 6 1 8 ) ，C.Ducamp-Sanguesa，R.Herrerea-Urbina，and M.Figlarz等之 方法（J.Solid State Chem·，1 00.1 992，p272 〜p280)製造，其 製造方法沒有任何限制。 黏著成份，可以使用對可視光線在近紅外光範圍的光具 透過性之各種塗料用、成型用樹脂，此類樹脂的使用沒有特 別的限制；樹脂爲水系、非水系、可溶性之任何一種或兩種 以上之混合物都可以；可以使用如丙烯酸樹脂、聚酯樹脂、 -17- (11) (11)200305620 醇酸樹脂、氨基甲酸酯樹脂、矽氧樹脂、氟樹脂、環氧樹脂 、聚碳酸酯樹脂、聚氯乙烯樹脂、聚乙烯醇樹脂等之各種有 機樹脂、使用基聚合性之低聚合體、單體形成之聚合樹脂等 等；此等樹脂可與硬化劑、基聚合開始劑倂用。 溶媒，以黏著成份可溶解或安定分散之溶媒爲宜，水性 溶媒或非水性溶媒都可以使用；具體的說，可以使用水、甲 醇、乙醇、丙醇、己醇、乙二醇等之醇類、二甲苯、甲苯等 之芳香族烴類，環己烷等之脂環式烴類，丙酮、甲乙酮等之 酮類，醋酸乙酯、醋酸丁酯等之酯類，乙二醇（單）丁醚等之 醚類等等，或其混合物；此等溶媒沒有任何限制。 分散劑，其數平均分子量在數千以上，主鏈中具有對毫 微條狀金屬吸著性高的氮原子、硫原子等之吸著部位，而且 對水系、醇系、非水系有機溶劑塗佈組成物所使用的各種溶 媒，有親和性，具複數側鏈的鹼性高分子型分散劑較適合； 此分散劑可使用市販者，如sorspasl3940、sorspas24000SC、 sorspas28000、sorspas32000(以上爲亞其西亞股份有限公司 之產品的商品名）、floren DOPA-15B、floren DOPA-17(以上 爲共榮社化學股份有限公司之產品）、azySpar-PB814、 azySpar-PB7 1 1(以上爲味之素富因技術股份有限公司之產品） ，此等沒有任何限制。 毫微條狀金屬的添加量，對黏著成份1 〇〇重量份，以 0.01〜900重量份爲適當；添加量少於上述範圍時，難得到所 希望的效果；添加量大於上述範圍時，將使成本增加；又， 因毫微條狀金屬短軸之故，使固有的共鳴吸收增強，對目的 -18- (12) (12)200305620 波長以外之吸收效果有增強的傾向；染料或在78〇11111以下之 波長範圍具有篩選性吸收功能的顏料，其添加量，對黏著成 份100重量份，以0.01〜900重量份爲宜；此等之添加量過少 時，難以獲得充分的補色效果，過多時，將使成本增加；或 染料、或顏料，其吸收增強時，難以得到無色彩的目的；毫 微條狀金屬與染料’或顏料之波長範圍幾乎相同、或使用相 異的2〜3種以上之毫微條狀金屬與染料、或顏料之組合，都 可以使用；晕;微線狀金屬之添加量，對黏著成份1 0 0重量份 ，以0.01〜9〇〇重量份爲宜，少於上述範圍時，很難充分獲 得所希望的表面電阻，大於上述範圍時，將使成本增加。 本發明之含毫微條狀金屬之組成物、塗膜、高分子薄 膜、濾光器中，塗佈組成物、塗膜、薄膜、或板材等，可 以使用各種各樣的形態，以此含毫微條狀金屬之組成物可 以獲得具有形成濾光層的濾光器；具體的說，（直接塗佈 或印刷在欲吸收可視光線以及近紅外光之透明基材上，能 形成可視光線、近紅外光吸收濾光器、電磁波遮蔽濾光器 之硬化塗膜，（2)以本發明之組成物形成薄膜狀、板狀等， 層合或被覆包圍在欲吸收可視光線，近紅外光、或電磁波的 透明基材上，能製成可視光線，近紅外光之濾光器、電磁波 遮蔽濾光器，（3)以本發明組成物所形成的上述塗膜、薄膜 等之形成物，層合在透明玻璃製，或塑膠製基材上，其層合 體再層合或被覆包圍在欲吸收可視光線，近紅外光、或電磁 波的透明基材上，可獲得可視光線、近紅外光之濾光器、電 磁波遮蔽濾光器；上述各使用形態中，濾光器之厚度以0.01 -19- (13) (13)200305620 # m〜1mm爲適當，考量成本、光透過性等，則以〇·05 // m 〜300 // m爲佳。 【實施方式】 本發明以實施例以及比較例做如下具體的說明。 以下實施例，主要以對400nm〜1400nm之波長範圍顯示 吸收功能，變換毫微條狀金屬之種類、長度、組成物等之條 件，至2000nm止之波長範圍都可以同樣具有光吸收功能。 表面電阻是以三菱化學股份有限公司製之lorester-GP測 定。 分光特性是以日本分光股份有限公司製之V-570測定。 [實施例與比較例] 表1〜表3爲毫微條狀金屬、染料、顏料、毫微線狀金屬 、黏著成份、溶媒等依所定配合比混合後，製成毫微條狀金 屬之銅塗佈組成物（塗料）；塗料中使用分散劑以使毫微條狀 金屬分散安定比；以溶媒爲與水系相關的溴化六癸基三甲基 銨（CTAB)，及溶媒爲與有機溶劑系相關的SolsperSe24000SC (Avecia KK)，個別使用做爲分散劑；此塗料在室溫下放置 三個月，沒有產生變色或沉澱等現象，極爲安定；此塗料以 旋轉塗佈法個別分開塗佈於基板上，靜置5分鐘，置入乾燥 爐中加熱（8 0 °C X 1小時），或在高壓水銀燈下以紫外線照射 硬化，形成濾光器；測定其薄膜之透過率變化與表面電阻； 其結果如表1〜表3所示；表1爲實施例1〜7，表2爲實施例 -20 - (14) 200305620 8〜14，表3爲實施例15〜18與比較例1〜3 ;表示「〇」之記號 ，爲微量配合之意。 -21 - 200305620 ί 實施例 卜 0.625 〇 T— T— § ο § If) I 1 ο csi CO 0.625 〇 τ— § ο ΙΟ S 1 1 1 ΙΟ 0.625 〇 § ο § ΙΟ 1 1 ο csi 寸 0.625 〇 τ— σ> § ο !0 § 1 1 1 CO 0.625 〇 T— σ> § ο S if) 1 1 OO t— CNJ 0.625 〇 T— σ> § ο ΙΓ> § 1 1 1 t— 0.625 〇 T— σ> s ο § ΙΟ 1 1 σ> T— 6 z 丙烯酸樹脂乳化物 氟樹脂乳狀物 丙烯酸樹脂 氨基甲酸酯樹脂 基聚合性低聚合體 CATB Solsperse 24000SC 毫微條狀金屬A 毫微條狀金屬B |毫微條狀金屬C 毫微條狀金屬D 毫微條狀金屬E 毫微線狀銀 膠體金 1 染料2 顏料1 顏料2 甲乙酮 |410nm | [530nm 700nm 850nm |1200nm | |1400nm 表面電阻[ΩΟ] 黏著成份 分散劑 最讓 骧 義醒 膠體金屬 1 顏料 溶媒 透過率 (%) -22- 200305620 CNJ« 實施例 寸 0.625 〇 T— § 〇 § § in wo CO r- CO 0.625 〇 T— T— § 〇 § l〇 uo in CN 0.625 〇 σ> § 〇 § § ID lO 0.625 〇 σ> § 〇 § § l〇 m CO ο 0.625 〇 τ— 〇 ΙΟ § 1 1 1 Ο) 0.625 〇 τ- T— § 〇 § m 1 1 CNJ c\i 00 0.625 〇 § 〇 in S 1 1 1 ο ζ 丙烯酸樹脂乳化物 氟樹脂乳狀物 丙烯酸樹脂 氣基甲酸酯樹脂 基聚合性低聚合體 CATB Solsperse 24000SC 毫微條狀金屬A |毫微條狀金屬B 毫微條狀金屬C 毫微條狀金屬D 毫微條狀金屬E 毫微線狀銀 膠體金 染料1 染料2 顏料1 顏料2 甲乙酮 |410nm |530nm |700nm | |850nm pl200nm i |1400nm 表面電阻[ΩΟ] 黏著成份 分散劑 攀蘭 骧 膠體金屬 I 1 1 透過率 (%) -23- (17)200305620 表3 實施例 比較例 No. 15 16 17 18 1 2 3 黏著成份 丙烯酸樹脂乳化物 氟樹脂乳狀物 丙烯酸樹脂 100 100 0.4 0.625 100 100 氨基甲酸酯樹脂 基聚合性低聚合體 0.625 分散劑 CATB Solsperse 24000SC 〇 〇 〇 〇 〇 〇 〇 毫微條狀 金屬 毫微條狀金屬A 毫微條狀金屬B 毫微條狀金屬C 1 毫微條狀金屬D 2 2 毫微條狀金屬E 3 毫微線狀金屬 毫微線狀銀 0.4 S體金屬 膠體金 1 mn 染料1 2 染料2 2 0.03 20 顏料 顏料1 2 顏料2 2 溶媒 甲苯 1 50 50 10 10 甲乙酮 50 50 250 250 水 透過率 (%) 410nm 90 70 70 - 90 90 90 530nm 70 70 70 70 0 90 90 700nm 90 70 70 70 90 0 0 850nm 90 0 0 0 90 90 90 1200nm 5 90 90 - 90 90 90 1400nm 5 - - - 90 - - 表面電阻[〇/□] 1.8 讎 - 0.6 200 107以上 1〇7以上 註：①黏著成份，毫微條狀金屬、染料、顏料、毫微線狀金屬之配合量單位爲重量份。 ② 濾光器之塗膜厚度爲2/im。 ③ 黏著成份： (a) 丙烯酸樹脂乳狀物、氟樹脂乳狀物之固形分爲40重量％(溶媒爲水）。 (b) 丙烯酸樹脂、氨基甲酸酯樹脂、基聚合性低聚合物之固形分爲40重量％(溶媒爲甲苯）。 ④ 分散劑： (a) CTAB爲溴化六癸基三甲基銨。 (b) Solsperse24000SC係Avecia股份有限公司產品。 ⑤ 毫微條狀金屬·· (a) 毫微條狀金屬A:吸收波長爲530nm與700nm(長短軸比3Ό、短軸平均長度lOmn、長軸平均長度30mn)。 (b) 毫微條狀金屬B:吸收波長爲530nm與850nm(長短軸比5.0、短軸平均長度10nm，長軸平均長度50nm)。 ⑹毫微條狀金屬C:吸收波長爲530nm與1400nm(長短軸比10.0、短軸平均長度10nm，長軸平均長度 100nm)。 (d) 毫微條狀金屬D:吸收波長爲530nm與850nm(長短軸比5.0、短軸平均長度5nm，長軸平均長度25nm) ° (e) 毫微條狀金屬E:吸收波長爲530nm與850nm(長短軸比5.0、短軸平均長度20nm，長軸平均長度1〇〇nm)〇 ⑥ 毫微線狀金屬： 毫微線狀銀：長短軸比25、長軸長度500nm 〇 ⑦ 膠體金屬： 膠體金：吸收波長爲530nm(球狀、直徑爲10nm)。 ⑧ 染料： ⑻染料1 :吸收波長爲410nm。 (b)染料2 :吸收波長爲700nm。 ⑨ 顏料： (a) 顏料1 :吸收波長爲410nm。 (b) 顏料2 :吸收波長爲700nm。 24- (18) (18)200305620 由表1〜表3之結果顯75 ’本發明之實施例1〜15中分別使 用毫微條狀金A、B、C、D，可獲得對與其長短軸比相對應 的700nm、850nm、1400nm可視光、近紅外光之特定波長具 有做爲彩色濾光片用濾光器、近紅外光遮斷用濾光器的性能 ;得到極低之表面電阻値’能獲得做爲電磁波遮蔽用濾光器 的性能，實施16〜17分別使用染料、顏料，對毫微條狀金之 波長530nm具有補色效果，使可視光範圍之透過率保持穩定 ，可得無色彩的濾光器；實施例1 8中添加染料與毫微線狀银 ，增加染料的補色效果，由低表面電阻而獲得毫微線狀銀之 導電效果。 另一方面，比較例1爲球狀膠體金，雖可吸收530nm之 波長，但其表面電阻太高；比較例2、3分別使用染料、顏料 ，雖可吸收特定波長，但與毫微條狀金屬相比較，吸光係數 太小，如果增加染料之添加量，則會使成本升高；又，染料 、顏料不能授與導電性，致表面電阻增高，不能獲得電磁波 之遮蔽效果。 [發明之功效] 本發明之光吸收濾光器，由表1〜表3可知，對可視光線 、近紅外光之特定波長具有篩選性的吸收效果，又因表面電 阻非常低，對波長400nm〜2000nm之可視光、近紅外光具有 篩選性的吸收功能，同時具有電磁波遮蔽功能，可做爲濾光 器使用；再因添加染料、顏色、可增加補色效果，可製成無 色彩之濾光器；又，由於毫微條狀金屬與毫微線狀金屬倂用 -25- (19) 200305620 ，可使表面電阻大幅度下降。 -26-200305620 玖 发明, Description of the invention [Technical field to which the invention belongs] The present invention relates to a composition, a coating film, a nano-strip metal containing a selective absorption function and an electromagnetic wave shielding function for specific wavelengths of visible light and near-infrared light. High-molecular film, optical filter formed from the high-molecular film, and use thereof. [Prior technology] When light is irradiated on metal microparticles, a resonance absorption phenomenon occurs (Plasmon Absorption); the absorption phenomenon varies with the type and shape of the metal and the absorption wavelength varies; for example, colloidal metal formed by spherical metal particles dispersed in water When the shape of the fine particles is a stripe with a short axis of 10 nm in the vicinity of 5 3 0 nm, in addition to the absorption in the vicinity of 53 0 nm due to the short stripe axis, the relationship between the long axis of the stripe is also in Absorption on the long wavelength side; the method of adjusting the ratio of the short axis to the long axis can be used to achieve the purpose of absorbing the desired wavelength (for example, SS.Changetal, Langmuir, 1999, 15.p 7 (Η-7 0 9) 〇 Although it has been known previously that metal particles will exhibit resonance absorption, it is not known about coating compositions that use this phenomenon, that is, coating compositions; and it is not known to use metal particles with a specific shape for visible light and near infrared. High-molecular film with absorption effect at a specific wavelength of light. For example, Japanese Patent Application Laid-Open No. 1 1-80647 and Japanese Patent Application Laid-Open No. 1 1-319538 are included. Colloidal solution of metal and copper colloid particles and high score The absorption effect of near-infrared light by the shape and the shielding effect of electromagnetic waves. Also, in Japanese Patent Publication No. 9-50621 0, although there are also descriptions of metal carbide nanoparticles and their manufacturing methods, The ratio of the short axis to the long axis can improve the absorption function of near-infrared light, and I don't know it at all. There is no hint about the realization of this as a coating and its use in optical materials. Also, for forming a metal wiring pattern, It is known that the use of resonance-absorbing inorganic fine particles with a diameter of less than 1000 nm and a major axis / minor axis ratio of greater than 1 is attached to a fine strip grown on a solid surface (documented in Japanese Patent Application Laid-Open No. 200 1-64794); this method is The fine strips are grown under the condition of being supported on a solid surface, but cannot be dispersed in various solvents and adhesive components, so it is impossible to paint. The resonance absorption of microparticles is only used for the purpose of growth in the synthesis process, not for the selective absorption of specific wavelengths of visible light and near-infrared light due to the long axis of the nano-strip metal. It is described in 2000-288 1 that resin films obtained by dispersing metal particles are laminated to form a filter having an electromagnetic wave shielding function. The resin composition having a near-infrared light shielding function is obtained by lamination. Filter; Japanese Patent Laid-Open No. 2000-56 1 27 has a description of a filter having a shielding function for electromagnetic waves and near-infrared light; however, the former resin composition having a shielding function for near-infrared light is Polymers containing unsaturated double-bonded monomers, phosphorus atoms, and copper atoms; the latter is -9- (3) (3) 200305620 due to the interactive lamination of silver thin films and oxide thin films. Light has a shielding effect; neither is the use of nanostrip metal. For the purpose of coloring the three primary colors of red, green, and blue, Japanese Patent Laid-Open No. 200 1-1 088 1 5 has the following description. The dye with a selective absorption function for a specific wavelength is dispersed in the adhesive component. The coating film obtained by coating can be made into a filter. In addition, for the purpose of blocking near-infrared light, Japanese Patent Application Laid-Open No. 2002-022935 has the following description. A dye having a selective absorption function for a wavelength of 750 nm to 110 nm is dispersed in an adhesive component, and the coating is obtained by coating. Film, method of making an optical filter. A method for manufacturing a filter having good light resistance and an appropriate color correction function is described in Japanese Patent Application Laid-Open No. 200 1-664 1 9 in order to obtain a lake having a large absorption function in a specific wavelength range. ) A pigment, which is dispersed in an adhesive component, and a coating film obtained by coating can be made into a filter. [Summary of the Invention] [Disclosure of the Invention] In view of various problems of the prior art, the present invention proposes a coating composition, a coating film after the coating composition is applied, a filter formed by the coating film, and the like; The invention consists of nano-stripe metal with absorption gas conductivity for specific wavelengths of specific long axis length and long axis / short axis ratio, dyes for color correction, and pigments with absorption function for wavelengths below 780 nm, which contains conductivity Sexual aid and sexual nanowire metal, with appropriate combination to form a pair of visible light with a wavelength of -10- (4) (4) 200305620 400nm ~ 2000nm, near infrared light has a selective absorption function, and at the same time has the function of electromagnetic wave shielding The composition and the coating composition formed from the composition; the present invention further provides visible light and near-infrared light having a wavelength of 400 nm to 2000 nm obtained from the nano-stripe metals, dyes, pigments, nano-linear metals, and the like. Light is a polymer film that has a absorbing function for screening and an electromagnetic wave shielding function, and is used for forming filters such as this polymer film. The present invention can provide a nano-strip metal-containing composition, a coating film, a polymer film, a filter, and the like, which are composed of the following items. (1) A composition comprising metal fine particles having a major axis of less than 400 nm and a major axis / minor axis ratio of greater than 1 (hereinafter referred to as "nano-stripe metal") 〇 (2) As described in (1) above The composition containing nano-stripe metal is characterized by containing nano-stripe metal and dye. (3) The nano-strip metal-containing composition as described in (1) above, which is characterized by containing a nano-strip metal and a pigment having a selective absorption function in a wavelength range of 7 to 80 nm. (4) The nano-stripe metal-containing composition as described in (1) above, which is characterized by containing nano-stripe metal and linear metal fine particles characterized by a long axis of 400 nm or more and a short axis of 50 nm or less. (Hereinafter referred to as "nanowire metal"). (5) The composition according to any one of (1) to (4) above, characterized in that it forms a selective absorption for a specific wavelength in the visible light and near-infrared light range of a wavelength of 400 to 2000 nm. Functional absorbing layer. -11-200305620 (5) (6) A coating composition characterized by containing the nano-stripe metal-containing composition (1) to (5) above. (7) A coating film characterized by being formed by the above (6) and having a selective absorption function for a specific wavelength in the visible light and near-infrared light range of a wavelength of 400 to 2000 nm. (8) A coating film characterized by being formed from the coating composition of the above (6) and having a light absorption function and an electromagnetic wave shielding function. (9) A conductive coating film characterized by being formed from the coating composition of the above (6) and having a surface resistance of 2.5 Ω / □ or less. (10) A kind of calender, characterized in that the coating film formed from the coating composition of the above (6) is formed on the surface of the substrate or between the substrates. (11) An electromagnetic wave blocking filter comprising a coating film formed from the coating composition of the above (6). (12) An optical filter for a plasma display panel (PDP), which comprises a coating film formed from the coating composition of the above (6). (13) A filter for a color filter, comprising a coating film formed from the coating composition of the above (6). (14) A hot-line blocking filter, comprising a coating film formed from the coating composition of the above (6). (15) A polymer film characterized by dispersing a nano-stripe-containing metal composition (1) to (5) in an adhesive component (resin). (16) The polymer film according to the above (15), characterized in that an absorption layer having a selective absorption function for a specific wavelength in the visible light and near-infrared light ranges of 400 to 2000 nm is formed. -12- (6) (6) 200305620 (17) The polymer film as described in (15) or (16) above, which has the electromagnetic wave shielding function. (18) The polymer film according to the above (15) or (16), characterized in that it has conductivity with a surface resistance of 2.5 Ω / □ or less. (19) An optical filter, which is formed of the high-molecular thin film of any one of (15) to (18) above, and has a selective absorption function for visible light with a wavelength of 400 nm to 2000 nm and near-infrared light. (20) An optical filter for blocking electromagnetic waves, characterized in that it is formed of a polymer film according to any one of the above (15) to (18). (21) An optical filter for a plasma display panel (PDP), characterized by being formed of any one of the above polymer films (15) to (18). (22) An optical filter characterized in that the polymer film according to any one of (15) to (18) above is laminated on the surface of a transparent substrate or interposed between the transparent substrates. (23) A filter for a color filter, which is formed of any one of the polymer films described in (15) to (18) above. (24) A filter for blocking a hot wire, which is formed of the polymer film according to any one of (15) to (18) above. The coating composition made of the nano-stripe metal-containing composition of the present invention forms a coating film on the surface of a transparent substrate, or forms a layer on the substrate surface and other substrates after the coating film is formed. A coating film is formed between the materials to obtain a filter having a filtering absorption function for visible light and near-infrared light and an electromagnetic wave shielding function. Similarly, the composition containing the nano-stripe metal of the present invention is added with an adhesive component. (Resin) is mixed and dispersed and formed into a thin polymer film, laminated on a -13- (7) (7) 200305620 transparent substrate, or sandwiched between multiple transparent substrates to form a filter layer. Filters with visible absorption and near-infrared light with selective absorption function and electromagnetic wave shielding function; filters formed by the coating film and coating film, polymer films, and filters formed by polymer films, with a wavelength of 400nm ~ Both visible light and near-infrared light at 2000 nm have a filtering absorption function and an electromagnetic wave shielding function; the coating film, polymer film, and filter of the present invention containing the above-mentioned nano-strip metal are preferred. There are no restrictions on the manufacturing and manufacturing methods. In addition, coating films, polymer films, and filters for nano-stripe metals include those that absorb visible light with a wavelength of 400 nm to 2000 nm, near-infrared light, and electromagnetic waves. Function and even shielding function. The amount of nano-bar metal added (content) is adjusted according to the purpose of use. The coating film, polymer film, and filter of the present invention can form a conductive coating having a surface resistance of less than 2.5 Ω / □; the formed conductive coating can be used as a filter for a plasma display panel (PDP) And the coating film, the polymer film, and the filter of the present invention have an excellent filtering absorption function for visible light and near-infrared light having a wavelength of 400 nm to 2000 nm, and can be used as a filter for a color filter In addition, the coating film, polymer film, and filter of the present invention have an excellent electromagnetic wave shielding function, and can be used as an electromagnetic wave blocking filter. [The best mode for implementing the invention] The following describes the implementation mode of the present invention. The composition, coating film, polymer film, and filter of the present invention are characterized by containing strip-shaped metal microparticles (nano-stripe metal) with a major axis of less than 400 nm and a major-axis / short-axis ratio of greater than 1; Microstrip metal composition, coating film, high score 14- (8) (8) 200305620 Sub-film, filter, it has a selective absorption function for visible light with a wavelength of 400nm to 2000nm and a specific wavelength of near-infrared light At the same time, it has the conductivity of 2.5 Ω / □ or less, so it has electromagnetic wave shielding function. The nano-stripe metal-containing composition of the present invention is dispersed in a solvent and an adhesive component (resin). If necessary, dyes, pigments, and nano-wire metals can be added to obtain a desired coating composition. Specifically, the coating composition can be obtained by adding the composition containing the nano-stripe metal to the coating ingredients and mixing to form a coating composition; the amount of the nano-stripe metal added and the nano-stripe Solvents, adhesive components (resins), dispersants, additives, etc. other than metal can be appropriately selected according to the use conditions; dispersing the nano-stripe metal of the present invention, including the aqueous dispersion for coating composition; In addition, the method of using the coating composition of the present invention is not particularly limited; the coating composition containing nano-stripe metal can be applied by brush coating, spray coating, roller coating, spin coating, or dip coating. Various coating methods such as cloth; not only coating, but also a method of injecting a composition containing nano-strip metal into a mold, and an injection molding method, Was added to the adhesive component (resin) molding method of mixing, and such limitation. Among the metal types of the nano-strip metal, gold, silver, copper, and alloys thereof can be used; the nano-strip metal used in the present invention has a major axis below 400 nm and a major axis / minor axis ratio greater than 1; The long axis / short axis ratio is most suitable between 2 and 10. When the long axis is above 400 nm, it is dispersed in the solvent, and it is difficult to obtain a stable colloidal dispersion. When the long axis / short axis ratio is equal to 1, only It can obtain the same absorption as the colloidal dispersion liquid obtained by dispersing spherical metal fine particles in a solvent, and it cannot obtain a selective absorption effect on visible light and near-infrared light at any wavelength. -15- (9) (9) 200305620 When using a nanostrip metal with a long axis below 400nm and a long / short axis ratio greater than 1, the long axis wavelength absorption energy of the nanostrip metal can cause The specific wavelengths of visible light and near-infrared light with a wavelength of 400 nm to 2000 nm have a selective absorption effect; the absorption range of the short-axis absorption energy of the nano-strip metal exists near 530 nm of the visible light range, so the length of the short axis is between When it is less than 2nm, its effect can be ignored; the composition, coating film, polymer film, and filter after dispersion of the nano-strip metal without visible light absorption band have transparency; the short-axis length of the nano-strip metal Above 2nm, the wavelength absorption energy is around 530nm, even if there is absorption. Combined with the dye with absorption in the wavelength range that can obtain the complementary color effect, and the pigment with selective absorption function in the wavelength range below 780nm, you can get colorless femto Composition, coating film, polymer film, and filter after the strip metal is dispersed; the nano-strip metal used in the present invention has a long axis of 400 nm or less, more preferably 200 nm or less; it is dispersed in The media, which particles are difficult to identify with the naked eye. Because the nano-strip metal is conductive, the composition containing the nano-strip metal has a shielding function against electromagnetic waves; the nano-strip-containing metal composition is coated on the surface of the substrate to form conductivity. Coating film; a composition containing nano-stripe metals for nano-stripe metals and nano-stripe metals, compared with a composition of nano-stripe metals without nano-stripe metals, Coating film, polymer film, and filter with low surface resistance. The dyes used in the present invention are generally used by those who can obtain the three primary colors of red, green, and blue (depending on the purpose, the complementary colors of red, green, and blue can also be used). The dyes are not particularly limited. ; For example, the red coloring layer is an azo dye, etc., the green coloring layer is a phthalocyanine dye, etc., and the blue coloring layer is 16-200305620 do). No restrictions. The pigments used in the present invention are generally insoluble in solvents and have a particle color of 'to obtain the three primary colors of light: red, green, and blue (depending on the purpose, the complementary color system can be used). The pigments can be used. There is no special pigment Restrictions: red colored layers such as cadmium red, molybdenum red, red iron oxide, lead, quinacridone red, etc., green colored layers such as chrome green, chrome oxide, phthalocyanine green, cobalt blue, pullulan blue, ultramarine, Representative materials such as blue colored layers such as phthalocyanine blue can be used, and there are no restrictions on these. The nanowire metal used in the present invention has a long axis of 400 nm or more and a short axis of 50 nm or less, preferably 450 nm to 1500 nm of the long axis, 1 nm to 45 nm of the short axis, and a long / short axis ratio of more than 20; this nano The linear metal is slender and fibrous. It is in a state of being intertwined while maintaining an appropriate interval. It can obtain excellent conductivity with a surface resistance below 1.0Ω / □, so it can obtain a high electromagnetic wave shielding function. Metal type, long axis length, Long axis / short axis ratio, etc., can be determined according to the purpose of use. Nanowire metals can be made according to the method of NRJana, L. Gearheart and CJ. Murphy (C hm. Com mu η ·, 2 0 1, 9 6 1 7 ~ 9 6 1 8), C. Ducamp- Sanguesa, R. Herrerea-Urbina, and M. Figlarz et al. (J. Solid State Chem., 1 00.1 992, p272 to p280) have no limitation on the manufacturing method. As the adhesive component, various coating and molding resins that are transparent to visible light in the near-infrared range can be used. There is no particular limitation on the use of such resins; the resin is any one or both of water-based, non-aqueous, and soluble. Mixtures of more than one kind are acceptable; acrylic resin, polyester resin, -17- (11) (11) 200305620 alkyd resin, urethane resin, silicone resin, fluororesin, epoxy resin, polycarbonate Various organic resins such as ester resins, polyvinyl chloride resins, polyvinyl alcohol resins, polymerizable oligomers, polymer resins formed from monomers, etc .; these resins can be used with hardeners and polymerizers. . The solvent is preferably a solvent capable of dissolving or stably dispersing the adhesive component. Both aqueous and non-aqueous solvents can be used; specifically, alcohols such as water, methanol, ethanol, propanol, hexanol, and ethylene glycol can be used. Aromatic hydrocarbons such as xylene and toluene, alicyclic hydrocarbons such as cyclohexane, ketones such as acetone and methyl ethyl ketone, esters such as ethyl acetate and butyl acetate, and ethylene glycol (mono) butyl Ethers and the like, or mixtures thereof; there are no restrictions on these solvents. The dispersant has a number average molecular weight of several thousand or more, has a nitrogen atom, a sulfur atom, and the like in the main chain, which has a high affinity for nano-stripe metals, and is applied to aqueous, alcoholic, and non-aqueous organic solvents. The various solvents used in the cloth composition are compatible, and alkaline macromolecular dispersants with multiple side chains are suitable; this dispersant can be used by commercial vendors, such as sorpasl3940, sorpas24000SC, sorpas28000, sorpas32000 (above are Asiatic West) Trade name of the company's products), floren DOPA-15B, floren DOPA-17 (above are products of Kyoeisha Chemical Co., Ltd.), azySpar-PB814, azySpar-PB7 1 1 (above are Ajinomoto Fuin Technology Co., Ltd.), there are no restrictions on these. The addition amount of the nano-stripe metal is preferably 0.01 to 900 parts by weight for 1,000 parts by weight of the adhesive component. When the addition amount is less than the above range, it is difficult to obtain the desired effect; when the addition amount is more than the above range, the Increase the cost; because of the short axis of the nano-strip metal, the inherent resonance absorption is enhanced, and the absorption effect beyond the wavelength of the target -18- (12) (12) 200305620 tends to be enhanced; the dye or 〇11111 The pigment in the wavelength range with sieving absorption function is added in an amount of 0.01 to 900 parts by weight for 100 parts by weight of the adhesive component. When the addition amount is too small, it is difficult to obtain a sufficient color supplement effect, too much If the absorption of the dye or pigment is enhanced, it is difficult to obtain a colorless object. The wavelength range of the nano-strip metal and the dye or pigment is almost the same, or two or three different types are used. The above nano-stripe metal can be used in combination with dyes or pigments; halo; the amount of micro-linear metal added is 100 parts by weight to the adhesive component, preferably 0.01 to 900 parts by weight, less When the above-described range, it is difficult to fully obtain the desired surface resistance is larger than the above range, the cost will increase. In the nano-stripe-containing composition, coating film, polymer film, and filter of the present invention, the coating composition, coating film, film, or plate can be used in various forms, and the composition The composition of the nano-stripe metal can be used to obtain a filter having a filter layer; specifically, (directly coated or printed on a transparent substrate to absorb visible light and near-infrared light, can form visible light, Hardened coating film of near-infrared light absorption filter and electromagnetic wave shielding filter, (2) forming a film shape, a plate shape, etc. with the composition of the present invention, laminated or covered to absorb visible light, near infrared light, Or transparent substrates of electromagnetic waves, which can be made into visible light, near-infrared light filters, electromagnetic wave shielding filters, (3) the above-mentioned coating films, films, etc. formed by the composition of the present invention. Laminated on a transparent glass or plastic substrate, and the laminate is laminated or coated to surround the transparent substrate to absorb visible light, near-infrared light, or electromagnetic waves. Filters for visible light and near-infrared light can be obtained. Light, electricity Magnetic wave shielding filter; in each of the above use forms, the thickness of the filter is 0.01 -19- (13) (13) 200305620 # m ~ 1mm is appropriate, considering cost, light transmission, etc., it is 0. 05 / / m to 300 // m is preferred. [Embodiment] The present invention will be described in the following specific examples and comparative examples. The following examples mainly show the absorption function for the wavelength range of 400nm to 1400nm, and change the nano-strip shape. The conditions for the type, length, composition, etc. of the metal can have the same light absorption function in the wavelength range up to 2000 nm. The surface resistance is measured by lorester-GP manufactured by Mitsubishi Chemical Corporation. The spectroscopic characteristics are limited by Japan Spectrophotometer Measurement of V-570 manufactured by the company. [Examples and Comparative Examples] Tables 1 to 3 are nano-stripe metals, dyes, pigments, nano-linear metals, adhesive components, solvents, etc., which are mixed according to a predetermined blending ratio. Copper coating composition (paint) that forms nano-stripe metal; dispersant is used in the coating to disperse the nano-stripe metal; stability ratio; hexadecyl trimethyl ammonium bromide (CTAB) ), And solvent SolsperSe24000SC (Avecia KK), which is related to organic solvents, is used individually as a dispersant. This coating is left at room temperature for three months without discoloration or precipitation, which is extremely stable. This coating is individually coated by spin coating. Separately coated on the substrate, leave it for 5 minutes, put it into a drying furnace and heat it (80 ° CX for 1 hour), or harden it with ultraviolet light under a high-pressure mercury lamp to form a filter; measure the change in transmittance of the film and Surface resistance; The results are shown in Tables 1 to 3; Table 1 is Examples 1 to 7, Table 2 is Examples -20-(14) 200305620 8 to 14, Table 3 is Examples 15 to 18 and Comparative Examples 1 ~ 3; the symbol of "〇" is meant for a small amount of coordination. -21-200305620 ί Example 0.625 〇T— T— § ο § If) I 1 ο csi CO 0.625 〇τ— § ο ΙΟ S 1 1 1 ΙΟ 0.625 〇§ ο § ΙΟ 1 1 ο csi inch 0.625 〇τ — Σ > § ο! 0 § 1 1 1 CO 0.625 〇T— σ > § ο S if) 1 1 OO t— CNJ 0.625 〇T— σ > § ο ΙΓ > § 1 1 1 t— 0.625 〇T— σ & gt s ο § ΙΟ 1 1 σ > T-6 z Acrylic resin emulsion fluororesin emulsion acrylic resin urethane resin-based polymerizable oligomer CATB Solsperse 24000SC Nano-strip metal A Nano-strip metal B | Nano-stripe metal C Nano-stripe metal D Nano-stripe metal E Nano-silver colloidal gold 1 Dye 2 Pigment 1 Pigment 2 Methyl ethyl ketone | 410nm | [530nm 700nm 850nm | 1200nm | | 1400nm Surface resistance [ΩΟ ] Adhesive ingredient dispersing agent makes the colloid metal 1 pigment solvent transmittance (%) -22- 200305620 CNJ «Example inch 0.625 〇T— § 〇§ § in wo CO r- CO 0.625 〇T— T— § 〇§ luoo in CN 0.625 〇σ > § 〇§ § ID lO 0.625 〇σ > § 〇§ § l〇m CO ο 0.625 〇τ — 〇ΙΟ § 1 1 1 〇) 0.625 〇τ- T— § 〇§ m 1 1 CNJ c \ i 00 0.625 〇§ 〇in S 1 1 1 ο ζ acrylic resin emulsion fluororesin emulsion acrylic resin gas base Formate resin-based polymerizable oligomer CATB Solsperse 24000SC Nano-strip metal A | Nano-strip metal B Nano-strip metal C Nano-strip metal D Nano-strip metal E Nano-silver colloid Gold Dye 1 Dye 2 Pigment 1 Pigment 2 Methyl ethyl ketone | 410nm | 530nm | 700nm | | 850nm pl200nm i | 1400nm Surface resistance [ΩΟ] Adhesive component dispersant Panlan 骧 Colloidal metal I 1 1 Transmission (%) -23- (17 200305620 Table 3 Example Comparative Example No. 15 16 17 18 1 2 3 Adhesive component acrylic resin emulsion fluororesin emulsion acrylic resin 100 100 0. 4 0.625 100 100 Urethane resin-based polymerizable oligomers 0.625 Dispersant CATB Solsperse 24000SC 000000000 Nano-strip metal Nano-strip metal A Nano-strip metal B Nano-strip metal C 1 Nanostrip metal D 2 2 Nanostrip metal E 3 Nanostrip metal Nanostrip silver 0.4 S body metal colloidal gold 1 mn Dye 1 2 Dye 2 2 0.03 20 Pigment pigment 1 2 Pigment 2 2 Solvent toluene 1 50 50 10 10 Methyl ethyl ketone 50 50 250 250 250 Water transmission rate (%) 410nm 90 70 70-90 90 90 530nm 70 70 70 70 0 90 90 700nm 90 70 70 70 90 0 0 850nm 90 0 0 0 90 90 90 1200nm 5 90 90-90 90 90 1400nm 5---90--Surface resistance [0 / □] 1.8 雠-0.6 200 107 or more 1107 or more Note: ① Adhesive component, nano-stripe metal, dye, pigment, The unit of blending amount of the nanowire metal is parts by weight. ② The coating film thickness of the filter is 2 / im. ③ Adhesive ingredients: (a) The solid content of acrylic resin emulsion and fluororesin emulsion is 40% by weight (solvent is water). (b) The solid content of the acrylic resin, the urethane resin, and the polymerizable low polymer is 40% by weight (the solvent is toluene). ④ Dispersant: (a) CTAB is hexadecyltrimethylammonium bromide. (b) Solsperse 24000SC is a product of Avecia Corporation. ⑤ Nano-strip metal ... (a) Nano-strip metal A: Absorption wavelengths are 530nm and 700nm (length ratio of short axis to 3mm, average length of short axis 10mm, average length of long axis 30mn). (b) Nano-stripe metal B: absorption wavelengths are 530 nm and 850 nm (long-short axis ratio 5.0, short-axis average length 10 nm, long-axis average length 50 nm). ⑹Nano-stripe metal C: absorption wavelengths are 530nm and 1400nm (long-short axis ratio 10.0, short-axis average length 10nm, long-axis average length 100nm). (d) Nano-strip metal D: absorption wavelengths of 530 nm and 850 nm (long-short axis ratio of 5.0, short-axis average length of 5 nm, long-axis average length of 25 nm) ° (e) Nano-strip metal E: absorption wavelength of 530 nm and 850nm (long and short axis ratio of 5.0, short axis average length of 20nm, long axis average length of 100nm). ⑥ Nanowire metal: nanowire silver: long and short axis ratio of 25, long axis length of 500nm 〇⑦ Colloidal metal: Colloidal gold: absorption wavelength is 530 nm (spherical, 10 nm in diameter). ⑧ dye: ⑻ dye 1: absorption wavelength is 410nm. (b) Dye 2: The absorption wavelength is 700 nm. ⑨ Pigment: (a) Pigment 1: The absorption wavelength is 410nm. (b) Pigment 2: The absorption wavelength is 700 nm. 24- (18) (18) 200305620 The results of Tables 1 to 3 show 75 'In the examples 1 to 15 of the present invention, the nano-stripe gold A, B, C, and D are used, respectively, and the long and short axes thereof can be obtained. Compared with the corresponding specific wavelengths of 700nm, 850nm, 1400nm visible light and near-infrared light, it has the performance as a filter for color filters and a filter for near-infrared light blocking; it has extremely low surface resistance. Can obtain the performance as a filter for electromagnetic wave shielding. Implementation of 16 ~ 17 uses dyes and pigments respectively. It has a complementary effect on the wavelength of nano-stripe gold at 530nm, which keeps the transmittance in the visible light range stable and obtains no color. The filter and the nanowire silver were added in Example 18 to increase the color complementary effect of the dye, and the conductive effect of nanowire silver was obtained from the low surface resistance. On the other hand, Comparative Example 1 is spherical colloidal gold, although it can absorb a wavelength of 530 nm, but its surface resistance is too high; Comparative Examples 2 and 3 use dyes and pigments respectively, although they can absorb a specific wavelength, but they are similar to nano-stripes. Compared with metals, the light absorption coefficient is too small. If the amount of dye added is increased, the cost will increase. Moreover, dyes and pigments cannot impart conductivity, resulting in an increase in surface resistance, and the shielding effect of electromagnetic waves cannot be obtained. [Effects of the invention] The light absorption filter of the present invention can be seen from Tables 1 to 3, and has a selective absorption effect on specific wavelengths of visible light and near-infrared light, and because the surface resistance is very low, the wavelength is 400nm ~ 2000nm visible light and near-infrared light have the function of filtering absorption, and at the same time have the function of shielding electromagnetic waves, can be used as a filter; and because of the addition of dyes, colors, can increase the color complementary effect, can be made into colorless filters ; And because nano-stripe metal and nano-wire metal are used -25- (19) 200305620, the surface resistance can be greatly reduced. -26-