TWI284116B - A spray coating liquid of carbon nanotube and its spray coating method - Google Patents
A spray coating liquid of carbon nanotube and its spray coating method Download PDFInfo
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1284116 ' _ ——. 五、發明說明(1) 【發明所屬之技術領域】 本發明係有關於一稽揚恭強-, r · · m η、& 琢發』不器(f 1 e 1 d e m i s s i ο η d^p^y,FED)>陰極面板電子源層之製作技術,尤指一種 I技術。 式I作陰極板之電子發射源層之製作 u = t本方法係使用一種低黏度且具揮發之溶劑於塗佈 I後之?,可快速揮散,奈米碳管易表露於塗層表面 i m ^ ΐ喷塗過程之物理效果,相較於奈米碳管比 重大、固者诏或添加劑之粉體粒子等較易沉積於陰極導電 層^或陰極玻璃基板之表層,更有利於奈米碳管之露出, |提昇電子之產出,提高電流密度。 先前技術】 [本發明所謂的場發顯示器是一種利用電場俾使陰極電 子發射源(Cathode electron emitter)產生電子,藉由該 1電子激發陽極板之螢光粉體,俾使螢光粉體產生光^,其" |特色疋輕、薄、有效顯示區域尺寸之大小可依製程及產品 需求製作,此外也沒有如平面液晶顯示器之視角問題。 一種習知的場發射顯示器la其結構至少包含陽極3碘 陰極4a,陽極與陰極之間設置有阻隔壁(rib)53a,提供^ 陽極與陰極間真孪區域之間隔,及作為陽極與陰極之間之 I支撐,參閱第一圖所示,一陽極3 a至少包含一陽極玻璃基 丨板31a,一陽極導電層32a,一螢光粉體層33a;而一陰二 4a至少包含一陰極玻璃基板41a,一陰極導電層42&,一電 子發射源層4 3 a,·其中陽極3 a與陰極4 a之間隔係由阻隔壁 第6頁 12841161284116 ' _ ——. V. INSTRUCTION DESCRIPTION (1) [Technical Field to Be Invented by the Invention] The present invention relates to a singularity, a r · · m η, & 琢 』 』 ( (f 1 e 1 demissi ο η d ^ p ^ y, FED) > The fabrication technology of the cathode panel electron source layer, especially an I technology. Formula I as the electron emission source layer of the cathode plate u = t This method uses a low viscosity and volatile solvent after coating I? It can be quickly volatized, and the carbon nanotubes are easily exposed on the surface of the coating. The physical effect of the spraying process is relatively easy to deposit on the cathode compared to the nanocarbon tube, the powder particles of the solid or the additive. The surface layer of the conductive layer or the cathode glass substrate is more favorable for the exposure of the carbon nanotubes, and the output of the electrons is increased to increase the current density. [Previous Technology] [The field emission display of the present invention is an electric field generating electrons generated by a cathode electron emitter, and the phosphor powder of the anode plate is excited by the one electron, and the phosphor powder is generated. Light ^, its " | Features 疋 light, thin, effective display area size can be made according to the process and product requirements, in addition to the perspective of the flat-panel LCD display. A conventional field emission display 1a has at least an anode 3 iodine cathode 4a, and a rib 53a is provided between the anode and the cathode to provide a space between the anode and the cathode, and as an anode and a cathode. For the I support, as shown in the first figure, an anode 3a includes at least an anode glass base plate 31a, an anode conductive layer 32a, and a phosphor powder layer 33a; and a cathode 2a contains at least one cathode glass. The substrate 41a, a cathode conductive layer 42&, an electron emission source layer 4 3 a, wherein the interval between the anode 3 a and the cathode 4 a is blocked by the barrier wall, page 6 1284116
五、發明說明(2) 53a配置,因此對於阻隔壁之功 解,盔位从A , 不 U 口獨:可理 ,、、、”持陰極板舆陽極板之間之真空區域之維繫,並 向陽^ Γ外加電場,俾使陰極板上之電子源產生電子並4 1 /板上之螢光粉體激發而使螢光粉體發光,此外需避 =一外加電場之產生過程陰極板與陽極板產生導通,阻 二C ί為二種絕緣材f。由該電子之產生模式係藉 二電% ( E )發生而形成,該電場(E )之強度,盥各 該早凡結構5a之該單元陽極51a與該單元陰極52a之提供電 壓有正比關係,與各該單元結構之該單元陽極5 la與該^ =陰極52a間之距離為反比關係;因此,各該單元i吉構之 單元陽極51a與該單元陰極52&間之距離,直接影響^近區 域之該笔%(E)之強度;是以各陰陽極之板上之塗層厚 ^均$性,及阻隔壁53a之該厚度之均勻性對於該$ ‘射 顯示器1 a所呈現的發光均勻性有決定性的因素。 近年來一種新的奈米碳管材料(Carbon nan(3tube)自 1991年被 iijiffla提出後(Nature 354, 56 (1991)),由於 該材料具有高長寬比(aspect ratio)、高機械強度、不易 被毒化(high chemical resistance)、不易磨耗、低啟間 電場(threshold electric field)等特性,已成為一種場 發射電子源(filed emission electrons)之材料,被廣泛 研究(Science 269,pl550 (1995); SID,98 Digest, ρ1052 (1998); SID’01 Digest, p316 (2001))。其中所 謂的場電子發射係利用一種施加於材料表面之高電場 (high electric filed),將材料能障壁(energy barrierV. Description of the invention (2) 53a configuration, so for the work of the barrier wall, the helmet position is from A, not U: unique, rational, and, "holding the vacuum area between the cathode plate and the anode plate, and An electric field is applied to the anode, and the electron source on the cathode plate generates electrons and the phosphor powder on the 4 1 / plate is excited to cause the phosphor powder to emit light. In addition, the cathode plate and the anode are required to be generated by an applied electric field. The plate is turned on, and the resistance C is two kinds of insulating materials f. The mode of generating the electrons is formed by the occurrence of the second electricity % (E), and the intensity of the electric field (E) is determined by the structure of each of the early structures 5a. The unit anode 51a has a proportional relationship with the voltage supplied from the unit cathode 52a, and is inversely proportional to the distance between the unit anode 5 la and the cathode 52a of each unit structure; therefore, the unit anode of each unit The distance between 51a and the cathode 52& of the unit directly affects the strength of the pen %(E) in the vicinity; the thickness of the coating on each of the anode and cathode plates, and the thickness of the barrier wall 53a Uniformity is determined by the uniformity of illumination exhibited by the $' display 1a Sex factor. In recent years, a new carbon nanotube material (Carbon nan (3tube) has been proposed by iijiffla since 1991 (Nature 354, 56 (1991)), because the material has a high aspect ratio, high mechanical Characteristics such as strength, high chemical resistance, non-abrasive, and electric field have become a material for field-emitting electrons (Science 269, pl550 (Science 269, pl550 ( 1995); SID, 98 Digest, ρ1052 (1998); SID'01 Digest, p316 (2001)). The so-called field electron emission system utilizes a high electric filed applied to the surface of the material to block the material. Energy barrier
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五、發明說明(3) )的厚度減小致使電子可藉由量子力學之通道效應 (Quantum-mechanical tunneling effect)從材料表面脫 離成為自由電子(J·Appl·phys. 39, 7,pp 3504 - 3504 ( 1 9 6 8 )),因此場電子發射的電流可藉由材料之一具有低 工作函數的表面而提昇效果,又,此電子產生方式係藉由 對該=料施予一電場來達成,無須對材料提供一定熱^, 因此這類場電子發射裝置素有冷陰極(c〇ld cath〇de)之稱 。因此這類奈米碳管已做為普遍應用於場發射顯示器陰 板之電子發射源的應用。 ^ 這類 •種以化 電層上已 均勻長 所能製作 寸以下, 顯不器之 發明專利 射源提供 發射源之 印方法印 、由於 以上,以 包含必要 粉等), 包含奈米 學蒸鍍方 形成奈米 度之奈米 之場發射 多所限制 製作係以 公告號: 一新思維 專利或期 製之電子 含奈米碳 維持所印 的固著劑 尤其在此 碳管之電子發 式將碳原子沉 碳管,然以目 碳管於導電層 顯示器陰極板 為此 種 厚膜製程製作 502395),提 ’其中以一種 刊不斷被提出 發射源層6 0 a 管之印刷用塗 製圖騰之外型 (玻璃粉等)及 局黏度的環境 射源層 積形成 前之製 上,不 尺寸仍 可降低 陰陽極 供業界 以網印 ,然即 仍有部 料黏度 與精度 介面活 下要使 之製作 於陰極 程雖已 過製程 在中小 製作成 板之各 以厚膜製程製 便如此 分問題 通常至 ,此外 性劑及 奈米碳 方式,有; 板之陰極導 可穩定成長 成本偏南及 型(20吋)尺 本之場發射 膜層(台灣 製作電子發 作陰極電子 ,對於以網 待克服;第 少10萬CP 塗料中至少 導電劑(銀 管分散均勻5. The invention reduces the thickness of the invention (3) so that electrons can be detached from the surface of the material into free electrons by the Quantum-mechanical tunneling effect (J. Appl. phys. 39, 7, pp 3504 - 3504 (1 9 6 8 )), so that the current emitted by the field electron can be enhanced by the surface of one of the materials having a low work function, and the electron generation method is achieved by applying an electric field to the material. There is no need to provide some heat to the material, so such field electron emission devices are known as cold cathodes (c〇ld cath〇de). Therefore, such carbon nanotubes have been used as an electron emission source commonly used in the field emission display cathode panels. ^ This type of seed is made up of a uniform length on the chemical layer. The patented source of the invention provides the printing method of the source, and the above contains the necessary powder, including nano-vapor deposition. The formation of nanometer nanometers is limited by the number of productions issued by the bulletin No.: A new thinking patent or a period of electronic containing nanocarbon to maintain the printed fixative, especially in this carbon tube electronic hair style The carbon atom carbon sequestration tube is made of a carbon tube on the conductive layer display cathode plate for the thick film process (502395), and the one is continuously proposed to be used as a printing totem for the emission source layer 60 a tube. The outer shape (glass powder, etc.) and the local viscosity of the local viscosity source layer are formed before the formation, the size can still reduce the anode and cathode for the industry to screen printing, then there is still a part of the material viscosity and precision interface to survive Although the process has been completed in the cathode process, the process of making the plate in the small and medium-sized process is usually divided into a thick film process. In addition, the agent and the nano carbon method are available. This type and south (20 inches) of the field emission film according to the present foot (Taiwan produced as the cathode electron electrons to be overcome by screen; uniformly at least a conductive agent (silver pipe of at least 100,000 CP coating dispersion
第8頁 I免奈 產生,所 製作之塗 《容劑與介 後段製程 可繞結殆 '第二、 度的基本 1 〇 “ m 以 之表面厚 因為其有 以上, 製之下墨 點限制中 成大量的 有部分奈 考第二圖 、乃設置 層其在電 下。 t管產生群聚現象’❿影響其電子的均句分布 料ώ:'員以化予方法添加必要之分散劑,如此所 複雜:成本提昇,而且對於燒結過程這些 者比· ΐ等南、ϊ產ί的氧化物也更為複雜,俾使 杳以=& μ'ι处理廷些氣化物的是否於燒結後即 :上免對奈米碳管產生毒化,•響電子之產生 要-…罔印刷之製程,冑限於網板上網布乳膠厚 =未:因此所製作之塗層60a厚度至少平均仍有 度分布m i t網結也易造成所印製後之圖騰 =通常達4〜8“。第三、奈米礙管… 比2管長度與碳管直徑比例通常達 制‘、,不米石厌官分布於塗料中,且不影響網印 :f ’對於碳管長度需加以限制,不過又因第二 ?1印後之圖騰厚度達10…此也易造 ;:m2a將被塗料包覆’即使經過燒結後仍 2厌官埋藏於固著劑或導電材料61a之内,可參 二ΐίί子產生的致率大大降低,例如發明 :種二層璧奈米碳管I網印製作之電子發射源 % (Em/A町之電流密度通常仍在1〇 mA/cni2以 料:本如::可降低製作含奈米碳管之電子發射 m ^ ^ _間早化一、可控制或降低電子發 ϋΐΐ主俾使顯示器所產生之畫面可以均句化 么射源層表面之奈米碳管露出增加,以提高產生 職是 源層之材 射源層之 三、電子Page 8 I will be produced, and the coating will be made. The process of the agent and the post-stage process can be wound around the crucible 'the second, the basic 1 〇' m. The surface is thick because it has more than the upper limit. In the second part, there is a part of the second picture of Nai Ka, which is set to be under the electricity. The t tube produces a cluster phenomenon '❿ affects the distribution of the average sentence of the electrons: 'The person adds the necessary dispersant to the method, so The complexity is: the cost is increased, and for the sintering process, these oxides are more complicated than the 南 南 南 南 南 南 俾 俾 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = : The above-mentioned poisoning of the carbon nanotubes, • The production of the electrons - ... 罔 printing process, 胄 limited to the stencil net latex thickness = no: so the thickness of the coating 60a produced at least still average distribution mit The net knot is also easy to cause the totem after printing = usually up to 4~8". Third, the nano-obstructed tube... than the ratio of the length of the tube to the diameter of the carbon tube is usually ',', the distribution of non-meterite is distributed in the paint, and does not affect the screen printing: f 'restrict the length of the carbon tube, but And because of the thickness of the second to 1 afterprint, the thickness of the totem is 10... This is also easy to make; m2a will be coated with the coating'. Even after being sintered, it is still buried in the fixing agent or conductive material 61a. The yield of ΐίί子 is greatly reduced, for example, the invention: the electron emission source of the two-layer nano-carbon nanotube I screen printing (the current density of Em/A town is usually still 1 mA/cni2): :: Can reduce the electron emission of the carbon nanotubes containing m ^ ^ _ premature one, can control or reduce the electronic hairpin, so that the screen produced by the display can be uniformly sentenced to the surface of the source layer The tube exposure is increased to improve the generation of the source layer of the material layer of the source layer, the electron
第9頁 1284116 五、發明說明(5) 電子之電流密 方式製作電子 料成份簡單化 制電子發射源 米碳管露出電 以噴塗方法製 滿足以上之需 【發明内容】 有鑑於習 以習知之化學 之设備成本昂 源層,易使塗 碳管仍埋藏於 低,職是,發 層之製作,係 射源層之厚度 昇電流密度, 術複雜度。 本發明之 子發射層之喷 電子發射源層 本發明另 料配置方法, 本發明又 LZ發明人乃設計一種以喷塗奈米碳管 七射源,攄此可制从 吕 ,降低材ΪZ衣一、以噴塗塗料之塗 層之尸/成本。一、可控制噴塗厚度,控 續之厚度平坦性。三、 & 子發射湄赵旦担曰 噴主方式’可使奈 作之Ϊίί 幵,提高電流密度。之-種 求。贫ι射顯示器之陰極電子發射源層,可 知場發 蒸鍍直 貴,製 層厚度 塗層内 明人乃 以一種 均勻性 大大降 射顯示 接於陰 程繁複 不均, 部,電 對於場 噴塗方 ,增加 低電子 器之陰極電 極電極上產 ’或是以網 影響發光均 子產生效率 發射顯示器 式製作,可 奈米碳管露 發射源層之 子發射源層 生奈米碳管 印法製作電 勻性及多數 降低,電流 之陰極電子 控制並提高 出塗層數量 塗料成本及 之製作 ’所需 子發射 的奈米 密度降 發射源 電子發,以提 製作技 主要目的’係提供一種以喷塗方式製作之電 塗方法’可以控制電子發射源層之厚度,及 之平坦性。 一目的’係提供一種電子發射源層之喷塗塗 可提升奈米碳·管露出,增加電流密度。 一目的’係提供一種電子發射源層之喷塗方Page 9 1284116 V. Description of the invention (5) Electronic current-tight method for making electronic material components Simple electronic emission source Meter carbon tube exposed electricity to meet the above requirements by spraying method [Invention content] In view of the conventional chemical The cost of the equipment is high, and the carbon-coated tube is still buried in the low position. The job is the production of the hair layer, the thickness of the source layer, the current density, and the complexity of the operation. The electron-emitting source layer of the sub-emissive layer of the present invention is further configured by the method of the present invention, and the inventor of the present invention further designs a seven-shot source for spraying carbon nanotubes, thereby making it possible to manufacture The corpse/cost of the coating of the spray coating. First, it can control the thickness of the spray and control the thickness flatness. Third, & sub-emission 湄 Zhao Dan 曰 喷 主 主 主 喷 主 主 主 喷 喷 喷 ’ ’ 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈- the kind of demand. The cathode electron emission source layer of the poor-area display shows that the field evaporation is straight and expensive, and the thickness of the coating layer is greatly reduced by a uniformity. The display is connected to the yin of the yin, and the electricity is applied to the field. , increase the cathode electrode of the low-electron device to produce 'or produce the display with the effect of the net effect on the emission of the light-emitting homogenate, and the electron emission of the nano-carbon tube printing method of the carbon source of the carbon nanotube dew source layer And most of the reduction, the current of the cathode electronically controls and increases the coating cost of the coating and the production of the required sub-emission of the nano-density of the emission source of the electron emission, to provide the main purpose of the production technology The electrocoating method 'can control the thickness of the electron emission source layer and the flatness thereof. A purpose of providing a spray coating of an electron-emitting source layer enhances the exposure of the nanocarbon tube and increases the current density. a purpose of providing a spray coating of an electron emission source layer
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本發明方法一 該奈米碳管之嘴塗 (2 )在特定溫度範 (1 )及(2 )直到達到 特定範圍厚度。 種製作方法包含有下列步驟·· ( 1 )喷塗 液於該電子裝置之陰極構造喷塗表面; 圍下揮發該噴塗溶劑;及(3 )重覆步驟 一特定次數以達成之奈米碳管之喷塗膜 為了使貴審查委員能 技術内容,請參閱以下有關 而所附圖式僅提供參考與說 限制者。 更進一步瞭解本發明之特徵及 本發明之詳細說明與附圖,然 明用’並非用來對本發明加以 實施方式】 本發明係提供一種以喷 用適S及可揮發的喷塗溶劑 其中’再與奈米礙管及必要 成為低黏度之喷塗溶液,其 帶動’將奈米碳管之喷塗溶 上或陰極玻璃基板上,使塗 制厚度,而以喷塗之方式易 另,由於係使用一種低黏度 溶劑快速揮散,易使奈米碳 空氣之贺塗過程之物理效果 著劑或添加劑等粉體粒子較 玻璃基板之表層,亦有利於 產出,提高電流密度。 塗方式製作電子發射源層;選 ’俾使奈米碳管易懸浮分散於 之固著劑或添加劑之粉體調製 應用方法係以高壓空氣之媒介 液噴塗均勻塗佈於陰極導電層 層厚度可利用塗佈次數調整^ 使形成之塗層厚度分布均勻, 且具揮發之溶劑塗佈後之塗層 管表露於塗層表面,又,高^ ,相較於奈米碳管比重大之固 1沉7,陰極導電層上或陰極 示米碳管之露出,提昇電子之 本發明之喷塗方式製作電子發射源層;藉由一種塗裝In the method of the present invention, the nozzle of the carbon nanotube is coated (2) at a specific temperature range (1) and (2) until a certain range of thickness is reached. The manufacturing method comprises the following steps: (1) spraying the spray surface on the cathode of the electronic device; volatilizing the spray solvent; and (3) repeating the step a certain number of times to reach the carbon nanotube Spray film In order to enable the technical content of the review board, please refer to the following related drawings and only the reference and the limit are provided. A further understanding of the features of the present invention, the detailed description of the present invention, and the accompanying drawings, which are not intended to be an embodiment of the present invention, the present invention provides a spraying solvent and a volatile spraying solvent. In contact with the nano tube and the need to become a low-viscosity spray solution, it drives the spraying of the carbon nanotubes onto the cathode glass substrate to make the thickness of the coating, and the spraying method is easy. The use of a low-viscosity solvent for rapid volatilization makes it easy to make the physical effect of the nano-carbon air coating process. The powder particles such as the agent or the additive are more favorable to the output and the current density than the surface layer of the glass substrate. The electron-emitting source layer is prepared by coating method; the powder preparation method for selecting the fixing agent or the additive which is easy to suspend and disperse the nano carbon tube is applied by the medium of high-pressure air to uniformly coat the thickness of the cathode conductive layer. The coating thickness adjustment is used to make the thickness distribution of the formed coating uniform, and the coated tube coated with the volatile solvent is exposed on the surface of the coating, and the height is higher than that of the carbon nanotube. Shen 7, the cathode conductive layer or the cathode shows the exposure of the carbon nanotubes, and the electron spraying source layer of the present invention is used for lifting electrons; by using a coating
1284116 五、發明說明(8) 用之喷搶利用一種高壓空氣之壓送方式將塗料霧化喷塗於 陰極表面以形成電子發射源層,配合使用塗佈溶液及懸浮 之固含量比例,選用之塗裝喷槍空氣進氣流量至少=於 200 Ι/min’製作電子發射源層之含奈米碳管之喷塗溶液 ’係以一種乙酸異戊酯為溶劑之溶液,添加必要之固 以與陰極板於高溫燒結後,使奈米碳管固著於陰極板,固 ίίίίΠ以為玻璃粉或項化棉1,添加銀粉以降低 笔子發射源層之導雷阻技,7、、天* 庙 一 Κ ^ ^ ^ ^ ^ , 添加必要之为散劑,以使以 上之奈未奴f或添加粉體更均勻分乙 t cpS^;i::r2;17 cps為L ’又,溶液内之奈米碳管與添加、 3粉體J粉體粒徑”以限制,以增顯奈米:管:露或出 夕+,又11免於奈米碳管管長過長產生編織性現象@ : & :塞,奈米礙管之管長與所謂之粉體粒徑:;生=1 10:3’其中又以10:9〜1〇:5為佳。 匕了以為10:9至 槍喷ΐ本塗溶液即可以塗裝用喷 固著劑,銀粉等,浮粉體“如 :碳管62相較於其他粉體比重較輕,因由於奈 或添加劑之銀粉等較優先附著於陰極41表者背i之玻璃粉 42,奈米碳管62則再參著於固著劑或添^之陰極導電層 或表面,此外所調配之溶液係以一種呈粉體61間隙 醋ΐ劑,於喷塗後即有大部分之溶劑揮:二生之乙酸異戊 之鉻出增加,參考第三圖所示意。以此 因此奈米碳管 /ί:所製作之電子 1284116 五、發明說明(9) 發射源層6 0厚度可以反覆嘴添 之屋洚 u μ々制a 、金的次數控制電子發射源層6 0 料之雪名恭私、搭盛相較於以網印法印製高黏度塗 管仍棟絲於命处免 电卞發射源層仍有大部分之奈米碳 對雷 及稭由燒結後俾使溶劑氧化,或再 方法,以增奈米碳管之露出種表面處理,如雷射或姓刻等 射源層60,再進行燒姓製=°而以本發明喷塗後之電子發 發鼾、、/5 ®而-Γ女丄θ、" 使奈米碳管固著於陰極電子 I射源層即可有大量的夺半〃 發射^靥夕^ # π 耵不木蚊管露出,並且所製作之電子 七射源層之厚度可以為習用 i /2以丁。 用、、,罔印製法之電子發射源厚度的 為闡述本發明之噴塗方 以下夕虛田本、·κ目触二 式製作電子發射源層,本發明 M F之應用表述具體實施例: 製作本發明之噴塗方式制 泠、、六、六你制γ 土万式製作電子發射源層所使用之喷 f:9液備製係以乙酸異戊鳴溶劑調加重量百分比 ^〜25%之平均粒徑為0.5# m玻璃粉為固著劑,添加重量 :分比10〜18%之平均粒徑為〇. 5 "祿粉以降低電子發射 =層之導電阻抗’添加5〜1〇%之平均長度m之多層管璧 奈米碳管’另,添加必要之分散劑備製為所需之奈米碳管 嗔塗溶液,所調製之溶液黏度控制在丨5〜丨7 cps。再以一 種商用塗裝用喷槍,喷嘴口徑為1.〇 mm,高壓空氣流量控 制在260 Ι/min’調整溶液喷出量控制在200 cc/min。如 此將奈米碳管噴塗溶液噴塗製作於陰極玻璃基板上之陰極 導電層上,以形成電子發射源層,製作後之陰極玻璃基板 再以高溫燒結,以使電子發射源層與導電層固著。1284116 V. INSTRUCTIONS (8) Spraying and spraying a high-pressure air to spray the coating on the surface of the cathode to form an electron-emitting source layer, using the coating solution and the solid content ratio of the suspension, and selecting The air injection flow rate of the spray gun is at least 200 Ι/min'. The spray solution containing the carbon nanotubes in the electron emission source layer is a solution of isoamyl acetate as a solvent, and the necessary solidification is added. After the cathode plate is sintered at a high temperature, the carbon nanotubes are fixed to the cathode plate, and the glass powder or the cotton wool is added, and the silver powder is added to reduce the lightning-proof resistance of the pen source layer. 7, Tian* Temple One ^ ^ ^ ^ ^ , add the necessary powder to make the above Naiwunu f or add powder more evenly divided into b t cpS ^; i:: r2; 17 cps for L ', and the solution of the nano Carbon tube and addition, 3 powder J powder particle size" to limit, in order to increase the nano: tube: dew or eve +, and 11 from the nano carbon tube length is too long to produce weaving phenomenon @ : & : plug, the tube length of the tube and the so-called powder particle size:; raw = 10:3' which is again 10:9~1〇 : 5 is better. I thought that 10:9 to the spray squirting solution can be applied with spray fixing agent, silver powder, etc., floating powder "such as: carbon tube 62 is lighter than other powders, Since the silver powder of the naphthalene or the additive is preferentially attached to the glass powder 42 of the back surface of the cathode 41, the carbon nanotube 62 is further involved in the fixing agent or the cathode conductive layer or surface, and is further formulated. The solution is a kind of powder 61 gap vinegar sputum agent, after spraying, most of the solvent is vaporized: the chrome of the isoprene acetate is increased, as shown in the third figure. Therefore, the carbon nanotubes / ί: produced electronic 1284116 V, the invention description (9) the thickness of the emission source layer 60 can be reversed by the mouth of the 洚 u μ 々 a, the number of gold control electron emission source layer 6 0 The snow name of the material is private, and the color is better than that of the screen printing method. The high-viscosity coating tube is still in the life of the electricity source. The source layer still contains most of the nano-carbon to the thunder and the straw is sintered.俾 oxidizing the solvent, or a further method, using the surface treatment of the exposed carbon nanotubes, such as laser or surname, such as the source layer 60, and then burning the electrons after spraying Bun, /5 ® and - Γ 丄 θ, " so that the carbon nanotubes are fixed in the cathode electron I source layer can have a large number of halved 〃 emission ^ 靥 ^ ^ # π 耵 木 木Exposed, and the thickness of the fabricated electron source layer can be used as a conventional i /2. The thickness of the electron emission source of the printing method of the present invention is described in the following description of the application of the MF of the present invention to the production of the electron emission source layer of the present invention. The spraying method of the invention is made of 泠, 6, and 6 γ 土 万 制作 制作 制作 制作 制作 f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f f The diameter of 0.5# m glass powder is a fixing agent, and the added weight: the average particle diameter of 10~18% is 〇. 5 "Lu powder to reduce the electron emission = the conductive resistance of the layer 'add 5~1〇% Multi-layer tube nanotube carbon nanotubes of average length m. In addition, the necessary dispersing agent is added to prepare the desired carbon nanotube coating solution, and the viscosity of the prepared solution is controlled at 丨5~丨7 cps. In addition, a spray gun for commercial coating has a nozzle diameter of 1. 〇 mm, and the high-pressure air flow rate is controlled at 260 Ι/min' to adjust the solution discharge amount to 200 cc/min. The carbon nanotube spraying solution is sprayed on the cathode conductive layer on the cathode glass substrate to form an electron emission source layer, and the fabricated cathode glass substrate is sintered at a high temperature to fix the electron emission source layer and the conductive layer. .
第14頁 1284116 五、發明說明(ίο) 據此,於陰極玻璃基板上所製作之電子發射源層,其 厚度介於3〜4// m’小於習知之網印製做之電子發射源層^ 度1 0 /z m,本發明之電子發射源層厚度均句性誤差可在1 , // m以下’大大提升電子發射源表面均勻性之效果,在f 場(E) 4V/// m下之電流密度已可達20 mA/cm2以上。以上 即本發明之以喷塗方式製作電子發射源層之詳細作業揭 ° 八 請參考第三圖所示,在此須闡明本發明構造,本發明 材料組成包含·奈米碳管6 2 ;喷塗溶劑,可在特定溫度範 圍下揮發’具有使該奈米石炭管懸浮分散於其中之特性;固 著劑’可分佈於該喷塗溶劑之中,具有特定界面連接固定 特性可在經過一特定固著程序後,使得該奈米碳管62以固 著劑連接於一電子裝置之陰極構造喷塗表面;藉由複數次 喷塗該奈米碳管6 2之噴塗液於該電子裝置之陰極4丨構造喷 塗表面’在特定溫度範圍下揮發喷塗溶劑,又進行該特定 固著程序後,達到固著該奈米碳管於陰極4丨構造噴塗表面 效果。 本發明之奈米碳管6 2之喷塗液尚且可進一步包含下列 細部特性;本奈米碳管6 2之喷塗液進一步可具有添加劑具 降低喷塗表面層之導電阻抗特性,亦可進一步具有分散劑 以使,添加劑、該固著劑及該奈米碳管能於該喷塗溶劑中 更加刀佈均勻,而其中該添加劑可為銀粉,該固著劑可為 粉,該喷塗溶劑為可乙酸異戊酯,又所調製之該奈米 碳官之噴塗液黏度可控制在15〜17 cps,而其中該特定固Page 14 1284116 V. Description of the Invention (According to the Invention) Accordingly, the electron emission source layer formed on the cathode glass substrate has a thickness of 3 to 4//m' which is smaller than the conventional electron-emitting source layer. ^ Degree 1 0 /zm, the thickness of the electron emission source layer of the present invention can be less than 1 / / m "to greatly improve the surface uniformity of the electron emission source, in the f field (E) 4V / / / m The current density has reached more than 20 mA/cm2. The above detailed operation of the present invention for producing an electron-emitting source layer by spraying method is disclosed. Referring to FIG. 3, the structure of the present invention must be clarified. The material composition of the present invention comprises a carbon nanotube 6 2 ; The solvent can be volatilized at a specific temperature range to have the property of suspending and dispersing the nano-carboniferous tube therein; the fixing agent can be distributed in the spraying solvent, and the specific interfacial connection fixing property can be passed through a specific After the fixing process, the carbon nanotubes 62 are connected to the cathode of the electronic device by a fixing agent; the spraying liquid of the carbon nanotubes 6 2 is sprayed on the cathode of the electronic device by a plurality of times 4丨Structural spraying surface 'The solvent is volatilized under a specific temperature range, and after the specific fixing process is performed, the effect of fixing the carbon nanotube on the cathode 4 丨 structure is achieved. The spray liquid of the carbon nanotubes 6 2 of the present invention may further comprise the following detailed characteristics; the spray liquid of the carbon nanotubes 6 2 may further have an additive to reduce the conductive impedance characteristics of the sprayed surface layer, and may further The dispersing agent is provided so that the additive, the fixing agent and the carbon nanotube can be more evenly distributed in the spraying solvent, wherein the additive can be silver powder, and the fixing agent can be powder, the spraying solvent Is isoamyl acetate, and the viscosity of the nano carbon official spray liquid can be controlled at 15~17 cps, and wherein the specific solid
12841161284116
五、發明說明(11) 著程序為加熱燒結或雷射加熱等以形成電子發射源層。 請參考第三圖,本發明方法製作方法包含有下^步驟 ··( 1)噴塗該奈米碳管6 2之喷塗液於該電子裝置之阶^ 4 i 構造噴塗表面;(2 )在特定溫度範圍下揮發該噴塗^, :及(3 )重1:步驟(1)及(2)直到達到一特定次數 奈米碳管之噴塗膜特定範圍厚度。 、之 本發明方法製作方法可具各種之細部變化如下, 明進一步可包含一步驟,使得步驟(3)的噴塗膜進丄一^ 定固著程序以形成電子發射源層,而其中該固著程 、、 燒結、雷射加熱或蝕刻等,又其中該喷塗該奈米皆萬7為 喷塗液係以一種商用塗裝用喷槍,其操作條二範g二:= 嘴口徑為0. 5 - 2 · 0 mm,高壓空氣流量控制在2 4 2⑽ Ι/min,調整溶液喷出量控制在15〇 一 250 cc/jj^n,且盆 陰極構造噴塗表面上所製作之電子發射源層6〇,其厚^介 藉以上之詳細揭示驗證,本發明之優點如下; 1.依本發明製作之電子發射源層可控制塗層之 及塗層厚度分布更均句化,有利於電子之產生表現= 2 ·依本發明所製作之電子發射源層,栢較於其他亦 以低成本之厚膜製成所製作之電子發射源層,奈米碳管露 出電子發射源之表面更多,大大提升電子之產生,有利於 電流密度之提升。 ' 3·依本發明製作之電子發射源層,溶液備製簡易V. Description of the Invention (11) The procedure is to heat sintering or laser heating or the like to form an electron emission source layer. Referring to the third figure, the method for fabricating the method of the present invention comprises the following steps: (1) spraying the spray coating of the carbon nanotubes 6 2 on the spraying surface of the electronic device; (2) The spray is volatilized at a specific temperature range, and (3) weight 1: steps (1) and (2) until a specific thickness of the spray film of a specific number of carbon nanotubes is reached. The method for fabricating the method of the present invention may have various details as follows. Further, the method may further include a step of causing the sprayed film of the step (3) to be subjected to a fixing process to form an electron emission source layer, wherein the fixing is performed. Process, sintering, laser heating or etching, etc., wherein the spraying of the nanometer is 7 spray liquid is a commercial coating spray gun, the operating strip is two van g two: = mouth diameter is 0 5 - 2 · 0 mm, the high-pressure air flow is controlled at 2 4 2 (10) Ι / min, the amount of the adjusted solution is controlled at 15 〇 250 cc / jj ^ n, and the electron emission source fabricated on the sprayed surface of the pot cathode structure The layer 6〇, the thickness of which is verified by the above detailed disclosure, the advantages of the invention are as follows: 1. The electron emission source layer prepared according to the invention can control the coating layer and the coating thickness distribution is more uniform, which is beneficial to the electron Production performance = 2 · According to the electron emission source layer produced by the invention, the surface of the electron emission source produced by the cypress is made of a low-cost thick film, and the surface of the carbon nanotube is exposed to the surface of the electron emission source. , greatly enhance the generation of electrons, which is conducive to current density Upgrade. '3. Emission source layer made according to the invention, simple preparation of solution
第16頁 1284116 五、發明說明(12) 實施塗佈用料省,可實施於商業應用。 惟以上所述僅為本發明之較佳可行實施例,非因此即 拘限本發明之專利範圍,故舉凡應用本發明說明書及圖式 内容所為之等效結構變化,均同理皆包含於本發明之範圍 内,以保障發明者之權益,於此陳明。Page 16 1284116 V. INSTRUCTIONS (12) The implementation of coating materials can be implemented in commercial applications. However, the above description is only a preferred embodiment of the present invention, and thus the scope of the present invention is not limited thereto, and the equivalent structural changes of the present invention and the contents of the drawings are all included in the present invention. Within the scope of the invention, to protect the rights and interests of the inventors, Chen Ming.
第17頁 1284116 圖式簡單說明 【圖式簡單說明】 第一圖、場發射顯示元件結構示意圖。 第二圖、習知網印技術之電子發射層塗結構示。 第三圖、本發明之喷塗技術之電子發射層塗結構示。 【元件符號說明】 場發射顯示器 1 a 陽極 3 a 陽極玻璃基板 31a 一陽極導電層 32a 螢光粉體層 33a 陰極 4 a 陰極玻璃基板 41a 陰極導電層 42a 電子發射源層 43a 單元結構 5a 單元陽極 51a 單元陰極 5 2a 阻隔壁 5 3a 電子發射源層 60a 導電材料 61a 奈米碳管 6 2a 陰極 41 陰極導電層 42 電子發射源層 60 粉體 61 奈米碳管 62Page 17 1284116 Brief description of the diagram [Simple description of the diagram] The first diagram, the structure of the field emission display component. The second figure, the electron emission layer coating structure of the conventional screen printing technology. The third figure shows the electron-emitting layer coating structure of the spray coating technique of the present invention. [Explanation of Symbols] Field emission display 1 a anode 3 a anode glass substrate 31a anode conductive layer 32a phosphor powder layer 33a cathode 4 a cathode glass substrate 41a cathode conductive layer 42a electron emission source layer 43a unit structure 5a unit anode 51a Unit cathode 5 2a barrier wall 5 3a electron emission source layer 60a conductive material 61a carbon nanotube 6 2a cathode 41 cathode conductive layer 42 electron emission source layer 60 powder 61 carbon nanotube 62
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CN101093765B (en) | 2006-06-23 | 2011-06-08 | 清华大学 | Field emission component, and preparation method |
TWI407485B (en) * | 2009-09-22 | 2013-09-01 | Hon Hai Prec Ind Co Ltd | Method for treating surface of cold cathode |
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