經濟部中央棣準局貝工消費合作杜印製 A7 B7 五、發明説明（1 ) 本發明係關於一種在一顯示窗上設有多層抗靜電過遽層 之陰極射線管之方法。 本發明亦關於一種在顯示窗上設有多層抗靜電過遽層之 陰極射線管。 陰極射線管及使用於電視接收機及電腦監控器内。 在本文首段提及之此種方法及在第二段中提及之此種陰 極射線管乃自PHN 14.663 (歐洲專利申請案EP 64916〇號） 獲悉。在該文件中，說明施加一第一導電層於一陰極射線 管之顯示窗之方法’所用之法為對顯示窗設以添加弹的氧 化物之導電粒子之水懸浮體，接著將該懸浮體乾燥因而形 成第一導電層，其後設以由酒精烷氧基硅烷化合物组成之 第二層’該化合物接著轉化為二氧化硅。 操作時’該顯示窗係以靜電方式充電，投射之光線被該 顯示窗反射，該導電層用供上述靜電充電之除去，及該導 電層與第二層形成一抗反射過濾層。 雖然此已知方法提供具有所要抗靜電效應之過濾層，該 抗靜電層之電導（約1 ΜΩ/方塊）乃不足以使觀看者防護該 陰極射線管發射之電磁場。此可能需要$約^ 方塊之 電阻值，本發明之目的在提供製造一種多層過濾層之方 法，該過滹層呈現抗靜電，屏蔽及反射壓制特性，並能以 簡單之方法製造。 為達到此目的，根據本發明方法之特點為將具有表面電 阻幺1 ΚΩ/方塊’較佳者基於銦_錫氧化物之第一導電層濺 鍍於顯示窗上，及使用溼化學方法設置主要由si〇2組成及 ^^^1 ^in I nn I. HI ^^^1 —^n nn l ., /1^ i (請先M讀背面之注意事項再填寫本頁) -4-Printed by DuPont of the Central Bureau of Quarantine, Ministry of Economic Affairs, A7, B7. V. INTRODUCTION TO THE INVENTION (1) The present invention relates to a method for a cathode ray tube with a multilayer antistatic layer on a display window. The present invention also relates to a cathode ray tube provided with a plurality of antistatic overlayers on a display window. Cathode ray tubes are used in television receivers and computer monitors. The method mentioned in the first paragraph and the cathode ray tube mentioned in the second paragraph are known from PHN 14.663 (European patent application EP 649160). In this document, the method of applying a first conductive layer to the display window of a cathode ray tube is explained. The method used is to set the display window with an aqueous suspension of conductive particles added with a bombarded oxide, and then the suspension Drying thus forms a first conductive layer, which is then provided with a second layer composed of an alcohol alkoxysilane compound, which is then converted into silicon dioxide. During operation, the display window is charged electrostatically, the projected light is reflected by the display window, the conductive layer is removed for the above electrostatic charging, and the conductive layer and the second layer form an anti-reflective filter layer. Although this known method provides a filter layer with the desired antistatic effect, the conductance of the antistatic layer (about 1 MΩ / square) is insufficient to protect the viewer from the electromagnetic field emitted by the cathode ray tube. This may require a resistance value of about ^ squares. The object of the present invention is to provide a method for manufacturing a multilayer filter layer, which has antistatic, shielding and reflection suppression characteristics, and can be manufactured in a simple manner. To achieve this, the method according to the present invention is characterized by sputtering a first conductive layer having a surface resistance of 幺 1 KΩ / square, preferably based on indium tin oxide, onto a display window, and using a wet chemical method to set the main Composed of si〇2 and ^^^ 1 ^ in I nn I. HI ^^^ 1 — ^ n nn l., / 1 ^ i (Please read the notes on the back before filling this page) -4-
A7A7
本紙張尺度適用中固因家橾準（CNS > A4規格（210x297公後） 袈 A7 B7 經濟部中央標準局貝工消费合作社印製 五、發明説明（ 響眩光（擴散反射）之層，及影響鏡面反射（反射係數R)之 層’以單獨方式或與該導電層合併實施者。 在第一具體實例中，第一導電之濺鍍層係以溼化學法例 如旋轉設有含二氧化矽之一抗眩光層》該方法之此實例提 供一種雙層之AGES (抗眩光，電磁屏蔽）過濾層。 在第二具體實例中，第一導電濺鍍層乃以溼化學法例如 旋轉設有含二氧化矽之一抗反射層。使用該方法之此一實 例’可獲得一種雙層之ARES (抗反射電磁屏蔽）過濾層。 在此種過濾層中’抗反射效應乃主要由導電層與抗反射層 組合中之干擾現象所產生》 在另一具體實例中，第一導電濺鍍層乃以溼化學法設有 一含二氧化矽之抗反射層。該抗反射層係用溼化學法塗以 含二氧化矽之一抗眩光層。使用此方法，可獲得三層之 IRES (改良之抗反射電磁屏蔽）過濾層。 在另一實例中’第一濺鍍層係用濺鍍法設有與二氧化碎 不同之材料之第二層，此第二層則設以含氧化梦之抗眩光 層’該第二層乃可含有例如氧化鈦。使用此方法可獲得一 種三層IRES (改良之抗反射磁電屏蔽）之過濾層。 在又另一實例中，該第一層係以濺鍍法設置與二氧化矽 不同之材料之第二層，該第二層則設以含有二氧化矽之一 抗反射層。使用此方法，可獲得三層ARES (抗反射電磁 屏蔽）之過濾層。 較佳者，第一層之表面電阻係低於5〇〇 Ω/方塊。 此種層之屏蔽功效乃甚至更大。 -6 - Μ氏ίΜ顧财關家轉（CNS ) A_ (2iGx2.g·This paper size is applicable to Zhongguyin furniture standard (CNS > A4 size (210x297 male)) 袈 A7 B7 Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention The layer that affects the specular reflection (reflection coefficient R) is implemented alone or in combination with the conductive layer. In a first specific example, the first conductive sputtered layer is provided by a wet chemical method such as rotating a layer containing silicon dioxide "An anti-glare layer" This example of the method provides a double-layered AGES (anti-glare, electromagnetic shielding) filter layer. In a second specific example, the first conductive sputter layer is provided with a wet-chemical method such as rotation and provided with dioxide. An anti-reflective layer of silicon. This example using this method 'can obtain a double-layer ARES (anti-reflective electromagnetic shielding) filter layer. In this filter layer, the' anti-reflective effect is mainly composed of a conductive layer and an anti-reflective layer The interference phenomenon in the combination arises> In another specific example, the first conductive sputtering layer is provided with an anti-reflection layer containing silicon dioxide by wet chemical method. The anti-reflection layer is coated by wet chemical method with One of the anti-glare layers of silicon oxide. Using this method, three layers of IRES (improved anti-reflective electromagnetic shielding) filter layer can be obtained. In another example, the 'first sputtering layer is provided with a spattering method and a spattering layer. A second layer of a different material, this second layer is provided with an anti-glare layer containing an oxidized dream. The second layer may contain, for example, titanium oxide. Using this method, a three-layer IRES (improved anti-reflective magnetic shield In another example, the first layer is a second layer provided with a material different from silicon dioxide by a sputtering method, and the second layer is provided with an anti-reflection layer containing silicon dioxide. .Using this method, three layers of ARES (anti-reflection electromagnetic shielding) filter layer can be obtained. Preferably, the surface resistance of the first layer is lower than 500Ω / square. The shielding effect of this layer is even greater -6-Μ 氏 ίΜGu Cai Guan Jia Zhuan (CNS) A_ (2iGx2.g ·
In I ( ^^^^1 t^i^i n ί I i nd ^^^1· i分 i (讀先閱讀背面之注意事項再填寫本頁) A7 —-----_____ 五、發明説明(4 ) " 較佳者，該另一層包含一種吸收物料。由於該物料，能 使過濾層之色彩受影響。 b A該抗眩光層可由例如噴塗或霧化烷氧基硅烷之酒精溶液 設置之，繼以在升高溫度之處理，因而形成—層二氧化 硬°結果所得之該層可抗擦傷及由於表面結構係由賤鍵形 成而具有抗眩光特性。該抗眩光效應實質上乃與光之波長 無關、藉濺鍍或霧化烷氧基硅烷溶液，一粗糙表面結構得 以形成而使結果所得之層呈現抗眩光效應。結果周^光線 係以擴散方式被反射。 二氧化矽之另增層之其他優點包括對指紋之減低靈敏 度’較大之硬度及抗擦傷性。 本發明之此等與其他特色將參照後文中所述之 例予以說明並使其顯而易見。 〃 圖式之簡單說明： 在附圖中： 圖1表示一顯示裝置， 圖2為一顯示裝置之顯示窗之簡要截面圖， 圖3a至3c例示根據本發明方法之一具體實例， 圖4例示根據本發明方法之若干可能實例。 經濟部中央橾準局負工消費合作杜印裝 n n^—· ^ϋ« m· In -* (¾. i (請先閲讀背面之注意事項再填寫本頁) 圖式係以方塊圖表示而非實際圖樣，此外，在不同之實 施例中，相同.之參考序號代表相同或類似之元件。 圖1為具有一玻璃管封2之陰極射線管丨之簡要切開圖， 該玻璃管封2由顯示窗3，圓錐體4及頸部5組成。用以產 生電子束之一電子鎗6係容納於該頸部中。電子束係聚焦 於顯示螢光幕3之内表面7上之磷層、操作時，電子束乃 以一偏向線圈系統（未圖示）在兩互相垂直方向上橫過顯示螢 本紙張尺度適用中國國家揉準（CNS ) A4規格（210χ297公着） B7 五、發明説明（5 ) 幕3偏轉。顯示螢光幕3係在外部設有根據本發明之抗靜 電塗層8。 圖2為根據本發明之一顯示螢光幕之簡要截面圖。顯示 螢光幕3設有抗靜電層8 ^該抗靜電塗層8由第一層9 (AS) 第二層10及第三層^組成。第一層9包含氧化錫及用濺鍍 设置之。第二層則係由二氧化矽製成。第一層及第二層一 起形成一抗反射過濾層（AR)。第二層可設以吸收成分例 如聚吡咯膠乳粒子，應用此吸收成分，第二層之傳輸特性 可有所改變。第三層丨丨（AG)提供抗眩光效應，並係由例 如濺鍍供給之二氧化矽製成。 圖3a至3c舉例說明根據本發明之方法。 將主要由銦錫氧化物（IT〇)组成之一導電層31濺鍍於顯 不螢光幕3上。二氧化矽之第二層32則係用溼化學法施加 於該層31。為達此目的，例如，將TE〇s溶液以旋轉塗敷 於層31上。在設置叮〇8溶液後，實施熱處理。此項處理 之結果為二氧化矽層之形成。其後，一第三層例如二氧化 矽抗眩光層係以噴佈法設置，俾獲致抗眩光效應。 圖4舉例說明根據本發明方法之若干可能實例。 經濟部中央樣準局貝工消费合作社印製 在第一排箭頭之前，圖示指示者為首先用濺鍍設置之各 層，以S表示基體，ES表示一導電層，例如，一金屬層 或，較佳者，實質上由銦錫氧化物（例如汀〇或Ατ〇)组成 之材料之一層，及以AR表示與二氧化矽不同之材料例如 氧化欽或氧化㈣形成之抗反射層。接著如第—排箭頭後 面所指示者，用澄化學法例如TE〇s溶液之旋轉或嘴 本紙張尺度制帽S家縣（CNS ) A4祕UlOX_297公釐)-- 五、發明説明（6 ) 在該㈣層上設置含有二氧切之一層或多層。一抗眩光 層係用AG表示，-抗反射層用AR,表示。最後，在最後箭 頭之後面’有所形成層之簡短指示’由（AGES，刪， 廳S)表示之，構成該過㈣之層數則指示於括紙内。圖 4顯示本發明之要素。 -基禮⑻乃用賤鐘法設以包括一種導電材料例如金屬 或基於銦錫氧化物材料之一導電層（ES)之若干層。 影響該過滅層反射特性之含二氧化矽之一或更多層 (AG ’ AR/ )係用澄化‘法設置。 除上述之優點外，根據本發明方法尚有其他優點使該方 法非常適於大規模使用。濺鍍及溼化學法可施加於業已在 組合狀態之陰極射線管，將擬予塗敷之表面加熱幾乎不需 要或根本不需要。在根據本發明方法之較佳實例中，該過 濾層係設於一抽空陰極射線管之顯示窗上。根據本發明之 万法較之需要顯示窗處於未组合狀態之方法例如化學蒸汽 沉積法(CVD)有若干不同之優點。如若一過濾層係設於未 組合之顯示窗上，該顯示窗在爾後必須附加於圓錐體及抽 成真空此方法涉及高溫度（達45(rc) ^並有所設埤濾層為 此種高溫損毁之危險。對過濾層之損害導致拒斥與花費不 背。此外’如若濺鍍之層主要由錮錫氧化物組成，賤鍵之 銦錫氧化物層之折射指數比較高（在丨9以上），此在該導 電層與含有二氧化矽之層（折射指數146)合併之實例中具 有正效應，應能提供抗反射之效果。上述之優點（更適 於工業規模之應用，適用於業已組合之陰極射線管可 :、發明説明（7 ) 有較低數量之拒斥）乃與該導電層表面電阻之正確數值及 該導電層之組成無關，因此就此等優點而言，表面電阻可 較高（例如1〇Μ〇5Ω/方塊）及/或該導電層可由另一種材料 (例如氧化錫）為主而組成之。 在下文中，列有根據本發明方法之一實例（所謂三層 IRES過濾層，參閱圖4)之詳細說明。 實例1 將顯示窗3置於一濺鍍裝置中。一層導電材料在此實 例中為具有10-15 nm左右厚度之添加銻之銦錫氧化物 (ΑΤΟ)被濺鍍於該顯示窗上。由於折射指數約為2ι，此層 之光學厚度約為20-30 nm。 根據表1製成烷氧基硅烷之溶液。 表1:丁£03溶液之製備(25〇1111) 組成及製法： *組合（克）： -TEOS 11.25 -乙醇 5.63 -0.175 M HCL 5.63 *水解歷30分鐘 *加入乙醇/丁醇(1:1)達250 ml 如上文所述獲得之第一層（ES參閱圖4)(含有導電粒子 (例如ΑΤΟ )之一已乾燥層）用旋轉法設以根據表1所製成之 -10- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公瘦） 請 先 閲 讀 背 δ) 之 注 意 事 項 再 填 寫 本 頁 袈 訂 經濟部中央樣率局貝工消费合作社印製 經濟部中央標準局貝工消费合作社印製 Α7 Β7 五、發明説明（8 ) TEOS溶液。該層之溫度係保持於16〇 歷時約9〇分鐘。因 而形成一適切黏附之二氧化矽光滑層（AR，，參閱圖4)。此 二氧化梦之增設層具有折射指數i 44及例如135 nm之厚 度。與抗靜電層（ES)合併，此層具有抗反射效應對可見光 線之反射係由此兩層之塗覆（ES-AR，）減至約0.8%。較之本 技藝之已知狀態，如歐洲專利申請案Ep 64916〇 (phn 14.663)中所述者，此為實質上之改良。此可能須歸功於導 電層ES及抗反射層AR，間折射指數之極大差異。在上述之 方法中’該差異為2.1 (ITO之折射指數）一1.46 = 0.64，而 從歐洲專利申請案EP 640160所知之方法則具有折射指數 差異為1.62-1.46 = 0.26。結果在噴濺之導電層毗連-抗反 射層之實例中’該噴鍍導電層之高折射指數（在1.9以上為 較佳）具有以已知方法為準反射已降低之優點。此外，具 有10-15 nm厚度之喷鍍ITO層之表面電阻約為50〇 Ω/方 塊，此乃遠低於已知過濾層之表面電阻。 其後，如若需要，可由噴濺TEOS溶液並對該溶液進行 一相似溫度處理，以設置二氧化矽之一第二另增層 (AG)。此層有粗糙之表面結構而具抗眩光功效。由於此 結構’結果所得之塗層對指紋之靈敏度較低。此外，反射 變成與波長較不相關，因為入射光線以擴散之方式散布之 故。可應用上文所述之方法以提供未組合顯示螢光幕， 即’未形成陰極射線管一部分之顯示螢光幕，之兩層 或多層）塗層。不過較佳者為使用該方法提供已形成抽成 真空之陰極射線管一部分之顯示螢光幕上之塗層。在此情 •11· 本紙張尺度適用中國國家標準（CNS ) Μ規格（210><297公釐） I HI n n n n n I ^ n n n I I T { * (請先閲讀背面之注意事項再填寫本頁) 392189 五、發明説明（9 ) 況中’損毁塗層之危險可減少。 總而言之，本發明乃關於一種含有—抗靜電過 極射線管之製法。其中-導電層（例如基於氧化錫或:陰 姻錫氧化物之氧化錫化合物之材料)係以賤錢法施。 該導電層乃用溼化學法例如旋轉設以含有si〇2之另—層 以及其後將TE0S化合物乾燥。根據本發明之2方法Z以適 合工業規模使用之簡單方式製成一種抗靜電過滤層且該 過濾層呈現反好之抗靜電與抗反射特性及版好之屏蔽效 能 在本發明之範圍内，須知"陰極射線管••除意指圖1中所 示之習用陰極射線管外’巾包含其中場致發光罐係以控 及充電之粒子（電子及/或離子）予以激勵之裝置。此種 置之實例為所謂之PDPs (電漿顯示器），其中磷係用電 放電激發者，以及如自美國專利案第us 5,313，136號所 之平坦顯示裝置。上述之問題亦發生於此等裝置中。 制 裝 漿 悉 經濟部中央標準局貝工消费合作社印製 -12- 本紙張尺度遑用中國困家揉準（CNS > a4规格（210X297公釐） ____' f請先閲讀背面之注意事項再填寫本頁)In I (^^^^ 1 t ^ i ^ in ί I i nd ^^^ 1 · i 分 i (Read the precautions on the back before filling in this page) A7 —-----_____ 5. Description of the invention (4) " Preferably, the other layer contains an absorbing material. Due to the material, the color of the filter layer can be affected. B A The anti-glare layer can be provided by, for example, spraying or atomizing an alkoxysilane alcohol solution In other words, following the treatment at an elevated temperature, a layer of hard dioxide is formed as a result. The layer obtained is resistant to abrasion and has anti-glare properties because the surface structure is formed of base bonds. The anti-glare effect is essentially the same as The wavelength of light is irrelevant. By sputtering or atomizing the alkoxysilane solution, a rough surface structure can be formed to make the resulting layer exhibit an anti-glare effect. As a result, the light is reflected in a diffuse manner. Other advantages of layering include reduced sensitivity to fingerprints and greater hardness and scratch resistance. These and other features of the present invention will be described and made apparent with reference to the examples described later. 简单 Brief description of the drawings : In the drawings: Figure 1 shows a Display device, Fig. 2 is a schematic cross-sectional view of a display window of a display device, Figs. 3a to 3c illustrate a specific example of the method according to the present invention, and Fig. 4 illustrates several possible examples of the method according to the present invention. Industrial and consumer cooperation Du printed equipmentnn ^ — · ^ ϋ «m · In-* (¾. I (Please read the precautions on the back before filling out this page) The diagram is shown in block diagrams rather than actual drawings. In addition, in In different embodiments, the same. The reference number represents the same or similar components. Figure 1 is a schematic cut-away view of a cathode ray tube with a glass tube seal 2, which is composed of a display window 3, a cone 4 And the neck 5. The electron gun 6 is used to generate an electron beam and is contained in the neck. The electron beam is focused on the phosphor layer on the inner surface 7 of the display screen 3. During operation, the electron beam is The deflection coil system (not shown) traverses the display screen in two mutually perpendicular directions. The paper size applies to the Chinese National Standard (CNS) A4 (210 x 297) B7 5. Description of the invention (5) Screen 3 deflection. Display screen The light curtain 3 is provided externally Antistatic coating 8. Figure 2 is a schematic cross-sectional view of a display screen according to one of the present invention. The display screen 3 is provided with an antistatic layer 8 ^ The antistatic coating 8 is composed of a first layer 9 (AS) The second layer 10 and the third layer are composed. The first layer 9 includes tin oxide and is provided by sputtering. The second layer is made of silicon dioxide. The first layer and the second layer together form an anti-reflection filter. Layer (AR). The second layer can be provided with an absorbing component such as polypyrrole latex particles. With this absorbing component, the transmission characteristics of the second layer can be changed. The third layer (AG) provides anti-glare effects and is Made of, for example, silicon dioxide supplied by sputtering. Figures 3a to 3c illustrate a method according to the invention. On the display screen 3, a conductive layer 31 mainly composed of indium tin oxide (IT0) is sputtered. A second layer 32 of silicon dioxide is applied to this layer 31 by a wet chemical method. To this end, for example, a TE0s solution is spin-coated on the layer 31. After setting the Ding 08 solution, heat treatment was performed. The result of this treatment is the formation of a silicon dioxide layer. Thereafter, a third layer, such as a silicon dioxide anti-glare layer, is disposed by a spraying method to obtain an anti-glare effect. Figure 4 illustrates several possible examples of the method according to the invention. Printed in front of the first row of arrows by the Central Bureau of the Ministry of Economic Affairs, the Pioneer Consumer Cooperative, the indicator indicates the layers first set by sputtering, with S for the substrate and ES for a conductive layer, for example, a metal layer or, Preferably, it is a layer of a material consisting essentially of indium tin oxide (such as tingo or Ατ〇), and an anti-reflection layer formed of a material different from silicon dioxide, such as oxidant oxide or hafnium oxide, represented by AR. Then, as indicated by the arrow in the first row, make the cap by using the chemical method such as the rotation of the TE0s solution or the size of the paper. Sjia County (CNS A4, UlOX_297 mm)-5. Description of the invention (6) in The plutonium layer is provided with one or more layers containing dioxin. An anti-glare layer is represented by AG, and an anti-reflection layer is represented by AR. Finally, after the last arrow, the “short instructions with formation layer” is indicated by (AGES, delete, hall S), and the number of layers constituting the transition is indicated in brackets. Figure 4 shows the elements of the invention. -Kiribati is provided with a layer comprising a conductive material such as a metal or a conductive layer (ES) based on an indium tin oxide material. One or more layers containing silicon dioxide (AG ′ AR /) that affect the reflection characteristics of the annihilation layer are set using the clarification method. In addition to the advantages described above, the method according to the invention has other advantages that make the method very suitable for large-scale use. Sputtering and wet chemical methods can be applied to a cathode ray tube already in an assembled state, heating the surface to be coated with little or no heating. In a preferred embodiment of the method according to the present invention, the filter layer is provided on a display window of an evacuated cathode ray tube. The method according to the present invention has several advantages over methods that require the display window to be in an unassembled state, such as chemical vapor deposition (CVD). If a filter layer is provided on an unassembled display window, the display window must be attached to the cone and evacuated later. This method involves high temperature (up to 45 (rc) ^, and there is a filter layer for this.) Danger of high temperature damage. The damage to the filter layer leads to rejection and cost. In addition, if the sputtered layer is mainly composed of rhenium tin oxide, the refractive index of the indium tin oxide layer with a low bond is relatively high (in 丨 9 Above), this has a positive effect in the case where the conductive layer is combined with a layer containing silicon dioxide (refractive index 146), which should provide anti-reflection effects. The above advantages (more suitable for industrial-scale applications, suitable for The cathode ray tube that has been assembled can: (7) has a lower number of rejections) has nothing to do with the correct value of the surface resistance of the conductive layer and the composition of the conductive layer, so for these advantages, the surface resistance can be Higher (for example, 10 MΩ / block) and / or the conductive layer may be composed mainly of another material (for example, tin oxide). In the following, an example of a method according to the invention (so-called three-layer IRES) is listed. filter (See Figure 4) for details. Example 1 The display window 3 is placed in a sputtering device. A layer of conductive material in this example is an antimony-added indium tin oxide (ΑΤΟ) with a thickness of about 10-15 nm. Sputtered on the display window. Since the refractive index is about 2m, the optical thickness of this layer is about 20-30 nm. The solution of alkoxysilane is made according to Table 1. 〇1111) Composition and production method: * Combination (g): -TEOS 11.25 -Ethanol 5.63 -0.175 M HCL 5.63 * Hydrolysis for 30 minutes * Add ethanol / butanol (1: 1) to 250 ml as described above. One layer (see Figure 4 for ES) (a dried layer containing conductive particles (such as ATTO)) is set by rotating method to make according to Table -10- This paper size applies the Chinese National Standard (CNS) A4 specification ( 210X297 male thin) Please read the notes on the back δ) before filling out this page. Printed by the Central Samples Bureau of the Ministry of Economic Affairs, printed by the Shellfish Consumer Cooperative. Printed by the Central Standards Bureau of the Ministry of Economic Affairs, printed by the Shellfish Consumer Cooperative. A7 B7. ) TEOS solution. The temperature of this layer was maintained at 16 for about 90 minutes. As a result, a properly adhered silicon dioxide smooth layer (AR, see FIG. 4) is formed. This additional layer of the dream dioxide has a refractive index i 44 and a thickness of, for example, 135 nm. Combined with the antistatic layer (ES), this layer has an anti-reflection effect on the visible light. The coating of the two layers (ES-AR,) is reduced to about 0.8%. This is a substantial improvement over the known state of the art, as described in European Patent Application Ep 649160 (phn 14.663). This may be due to the great difference in refractive index between the conductive layer ES and the anti-reflection layer AR. In the above method, the difference is 2.1 (the refractive index of ITO)-1.46 = 0.64, while the method known from European patent application EP 640160 has a refractive index difference of 1.62-1.46 = 0.26. As a result, in the case of the sputtered conductive layer abutting-anti-reflection layer, the high refractive index of the sprayed conductive layer (preferably above 1.9) has the advantage of reducing the quasi-reflection by a known method. In addition, the surface resistance of the sprayed ITO layer with a thickness of 10-15 nm is about 50 Ω / square, which is much lower than the surface resistance of known filter layers. Thereafter, if desired, a TEOS solution may be sprayed and the solution may be treated at a similar temperature to provide a second additional layer (AG) of silicon dioxide. This layer has a rough surface structure and has anti-glare effect. The coating obtained as a result of this structure 'is less sensitive to fingerprints. In addition, the reflection becomes less related to the wavelength because the incident light is scattered in a diffuse manner. The method described above may be applied to provide an uncombined display screen, that is, a display screen that does not form part of a cathode ray tube (two or more layers) of a coating. However, it is preferred to provide a coating on a display screen for which a part of a cathode ray tube which has been evacuated has been formed using this method. In this case • 11 · This paper size applies the Chinese National Standard (CNS) M specification (210 > < 297 mm) I HI nnnnn I ^ nnn IIT {* (Please read the precautions on the back before filling this page) 392189 5. Description of the invention (9) In the case 'the risk of damage to the coating can be reduced. In summary, the present invention relates to a method for producing an antistatic trans-ray tube. Among them, the conductive layer (for example, a tin oxide compound based on tin oxide or a tin oxide oxide) is applied by a cheap method. The conductive layer is provided by a wet chemical method such as spin-coating with another layer containing SiO2 and thereafter drying the TEOS compound. According to the second method Z of the present invention, an antistatic filter layer is made in a simple manner suitable for industrial scale use, and the filter layer exhibits anti-static and anti-reflective properties and good shielding effectiveness within the scope of the present invention. " Cathode ray tube " Except the conventional cathode ray tube shown in Fig. 1 includes a device in which an electroluminescent canister is excited by particles (electrons and / or ions) which are controlled and charged. Examples of such arrangements are so-called PDPs (plasma displays), in which phosphorous is excited by an electrical discharge, and a flat display device such as that disclosed in U.S. Patent No. 5,313,136. The problems described above also occur in these devices. Pulp and pulp are printed by the Shelling Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs-12- This paper is calibrated with Chinese standards (CNS > a4 size (210X297 mm) ____ 'f Please read the precautions on the back first (Fill in this page)