554028 A7 B7 五、發明説明（1 ) 技術領域 (請先閲讀背面之注意事項再填寫本頁) 本發明係有關，塗布於支承物上形成螢光膜時，可形 成螢光體充塡率大，反射率高之螢光膜的螢光體糊料組成 物’螢光體糊料組成物之製造方法，及發光亮度高之真空 紫外線激起發光元件。 先行技術 電漿顯示板（P D P )，場放射顯示器（F E D )等 之平面顯示器（F P D )用之螢光膜，螢光燈用之螢光膜 ’ 一般係於溶解有粘合劑樹脂之溶劑中分散螢光體成爲螢 光體糊料組成物，將之塗布於支承物上，經烘烤處理製成 ’而以往爲提升F P D用螢光膜之亮度，對所用螢光體之 組成，表面處理等之螢光體處理方法，螢光體糊料組成物 之組成及其製造方法，螢光膜之形成方法等等，有種種探 經濟部智慧財產局員工消費合作社印製 而爲求F PD之更高亮度化，例如，藉提高F PD螢 光膜之螢光體充塡率及提升螢光膜之膜反射率，除可有效 利用螢光體之發光外，因螢光膜體積減小，在如P D P之 螢光膜由於發光格點內放電空間變大，放電定址電壓下降 ，操作條件放寬可期。 然而，以往之螢光體糊料組成物，有時隨所用螢光體 種類而組成物中螢光體相互凝集，故於螢光體糊料的塗布 成膜之際，因螢光膜中互相凝集之螢光體形成某種構造， 螢光膜中螢光體堆積不良充塡率變小。如此之缺失，於代 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -4- 經濟部智慧財產局員工消費合作社印製 554028 A7 _____B7_ 五、發明説明（2) 表性之發藍色或綠色光之P D P用螢光體，具優良發光性 並含E u活化劑之鋁酸鹽螢光體尤爲顯著。 發明所欲解決之課題 本發明之目的在提供，成爲P D P，螢光燈內部之塗 布於支承物上之螢光膜時，螢光體之分散性良好，可得螢 光體充塡密度高於以往之螢光膜的高亮度螢光膜之螢光體 糊料組成物，螢光體糊料組成物之製造方法，及真空紫外 線激起發光元件。 用以解決課題之手段 本發明人等，在將螢光體粒子以及粘合劑樹脂分散於 有機溶劑中製造螢光體糊料組成物之際，對螢光體粒子等 之分散時的分散處理方法詳加探討，結果得知，有如以往 的營光體糊料組成物之製造方法，在以二輕機等分散裝置 分散處理螢光體粒子，粘合劑樹脂及有機溶劑之糊料組成 物之原料混合物（糊料原料）之際，不在最初即以足使螢 光體組成物達所欲粘度之有機溶劑加入糊料原料，於某程 度之低粘度作糊料原料之分散處理，而是先只添加少於最 終必要量之有機溶劑，以分散裝置分散處理高粘度之糊料 原料’製成粘度高於所欲螢光體糊料組成物之高粘度泥狀 混合物’再追加混合有機溶劑，降低粘度成爲所欲之螢光 體糊料組成物，即可達上述目的。 亦即，本發明係由以下構成。 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇χ297公釐） (請先閲讀背面之注意事項再填寫本頁)554028 A7 B7 V. Description of the invention (1) Technical field (please read the precautions on the back before filling out this page) The present invention is related to the fact that when coated on a support to form a fluorescent film, it can form a large phosphor filling rate. , A method of manufacturing a phosphor paste composition of a phosphor film having a high reflectance, and a method of manufacturing the phosphor paste composition; Advanced technology Plasma display panel (PDP), field emission display (FED), etc. Fluorescent film for flat display (FPD), Fluorescent film for fluorescent lamps' Generally used in a solvent in which a binder resin is dissolved Dispersed phosphors become a phosphor paste composition, which is coated on a support and baked to make 'in the past, in order to improve the brightness of the fluorescent film for FPD, the composition of the phosphor used, surface treatment The phosphor processing methods, the composition of the phosphor paste composition and its manufacturing method, the formation method of the fluorescent film, etc., there are all kinds of printing printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs for F PD Higher brightness, for example, by increasing the phosphor filling rate of the F PD fluorescent film and increasing the film reflectance of the fluorescent film, in addition to effectively utilizing the luminescence of the fluorescent body, the volume of the fluorescent film is reduced, In a fluorescent film such as a PDP, the discharge space becomes larger due to the light emitting grid point, the discharge addressing voltage decreases, and the operating conditions can be relaxed. However, in the conventional phosphor paste composition, the phosphors in the composition sometimes aggregate with each other depending on the type of phosphor used. Therefore, when the phosphor paste is coated and formed into a film, The aggregated phosphors form a certain structure, and the rate of poor accumulation of phosphors in the phosphor film becomes small. Such a deficiency, the Chinese National Standard (CNS) A4 specification (210X297 mm) is applied to the paper standard. -4- Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 554028 A7 _____B7_ V. Description of Invention Blue or green light phosphors for PDP, aluminate phosphors with excellent luminosity and containing Eu activator are particularly significant. Problem to be Solved by the Invention The object of the present invention is to provide a PDP, which is a fluorescent film coated on a support inside a fluorescent lamp. The dispersion of the phosphor is good, and the filling density of the phosphor is higher than that of the phosphor. Conventional fluorescent paste, high-brightness fluorescent film, phosphor paste composition, method for producing phosphor paste composition, and vacuum ultraviolet light-emitting light-emitting element. Means for Solving the Problem The present inventors and others dispersed the phosphor particles and the like when the phosphor particles and the binder resin were dispersed in an organic solvent to produce a phosphor paste composition. The method was discussed in detail, and it was found that, as in the conventional method for manufacturing a paste composition for a camping body, the dispersion composition of phosphor particles, a binder resin, and an organic solvent was dispersedly processed in a dispersing device such as a two-light machine. In the case of raw material mixtures (paste raw materials), instead of adding the paste raw materials with an organic solvent sufficient to make the phosphor composition reach a desired viscosity, the paste raw materials are dispersed at a low viscosity to a certain degree, but First add less than the final necessary amount of organic solvent and disperse the high viscosity paste raw material with a dispersing device to make a high viscosity slime mixture with a viscosity higher than the desired phosphor paste composition. Then add additional organic solvents To reduce the viscosity and become the desired phosphor paste composition, the above purpose can be achieved. That is, the present invention is constituted as follows. This paper size applies to Chinese National Standard (CNS) A4 specification (21 × 297 mm) (Please read the precautions on the back before filling this page)
-5- 554028 A7 B7 五、發明説明（3) (請先閱讀背面之注意事項再填寫本頁) (1 ) 將螢光體粒子及粘合劑樹脂分散於有機溶劑 中所成之螢光體糊料組成物之製造方法，其特徵爲：至少 包括將含螢光體粒子及有機溶劑，或螢光體粒子，粘合劑 樹脂及有機溶劑之螢光體糊料組成物之原料混合物以分散 裝置分散處理得螢光體糊料組成物之中間體的步驟，及於 該中間體添加混合有機溶劑或有機溶劑及粘合劑樹脂，得 粘度低於該中間體之混合物的步驟。 (2) 上述中間體當溫度爲2 5 °C，剪切速率爲 1 0 ( 1 /秒）時該中間體之粘度在8 0帕•秒以上的上 述（1 )之螢光體糊料組成物之製造方法。 (3) 上述中間體當溫度爲25 °C，剪切速率爲 10 (1/秒）時該中間體之粘度在100至20000 帕•秒的上述（1 )或（2 )之螢光體糊料組成物之製造 方法。 (4) 上述中間體當溫度爲2 ，剪切速率爲 經濟部智慧財產局員工消費合作社印製 1 0 ( 1 /秒）時該中間體之粘度在3 0 0至1 〇 〇 〇 〇 帕•秒的上述（1 )至（3 )中任一項之螢光體糊料組成 物之製造方法。 (5 ) 上述分散裝置係輥筒型分散機之上述（1 ) 至（4 )中任一項之螢光體糊料組成物之製造方法。 (6 )上述螢光體糊料組成物之中間體的螢光體含量 占該中間體總量之6 0至9 5重量％的上述（1 )至（5 )中任一項之螢光體糊料組成物之製造方法。 (7 ) 上述螢光體糊料組成物之中間體的螢光體含 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -6 - 554028 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（4) 量占該中間體總量之7 0至9 0重量％的上述（6 )之螢 光體糊料組成物之製造方法。 (8 ) 上述螢光體粒子係含E u活化劑之鋁酸鹽營 光體的上述（1 )至（7 )中任一項之螢光體糊料組成物 之製造方法。 (9 ) 於有機溶劑中分散含E u活化劑之鋁酸鹽營 光體粒子及粘合劑樹脂而成，以塗布裝置塗布於平滑玻璃 板上形成螢光體塗膜，於1 2 0 °C乾燥3 0分鐘後上述螢 光體塗膜中螢光體所占體積比率在4 0至7 0%範圍之螢 光體糊料組成物。 (10) 上述螢光體塗膜中螢光體所占上述體積比 率在4 5至6 5%之範圍的上述（9 )之螢光體糊料組成 物。 (11) 於1 2 0 °C乾燥3 0分鐘後，將上述螢光 體塗膜更於5 0 0 °C烘烤處理3 0分鐘時，發光之刺激和 (亮度/y値）在上述含E u之鋁酸鹽螢光體粒子的發光 剌激和（亮度/ y値）之8 0 %以上的上述（8 )之螢光 體糊料組成物。 (12) 於內部設螢光膜封入外圍器內，以稀有氣 體放電所發射之真空紫外線激起該螢光膜使其發光之真空 紫外線發光元件.其特徴爲：上述螢光膜係用上述（1 ) 至（8 )中任一項之製造方法製成之螢光體糊料組成物形 成。 (13) 上述螢光膜係以上述（9)至（1 1)中 (請先閱讀背面之注意事項再填寫本頁) 衣· 訂 f 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 554028 A7 B7 五、發明説明（5) 任一項之螢光體糊料組成物形成之上述（1 2 )的真空紫 外線激起發光元件。 發明之實施形態 以下更詳細說明本發明。 本發明之螢光體糊料組成物之製造方法係，首先於螢 光體粒子添加少量有機溶劑，以萊凱機，揑合機，行星式 混合機等混練機，定子及轉子所成之均質機，硏鉢，竹刮 刀等粗混，調製糊料組成物之原料混合物（糊料原料）。 該糊料原料中除螢光體及有機溶劑以外，也可同時添加粘 合劑樹脂，此時與螢光體粒子混合之有機溶劑，可用預先 溶有所用之選定量粘合劑樹脂之有機溶劑（粘合劑樹脂液 )。又，該糊料原料中除螢光體粒子，粘合劑樹脂，有機 溶劑外，亦可添加抗氧化劑，改善螢光體粒子之分散的分 散劑。 其次，將該螢光體含量較高之高粘度粗混糊料原料， 先以分散裝置作分散處理，使螢光體粒子於該糊料原料中 充分分散，得螢光體糊料組成物之中間體（以下簡稱「中 間體」）。用以製造中間體之分散裝置，若係使被分散媒 體糊料原料通過輥筒間隙，一面混練互相混合，作分散處 理之輥筒型分散機時，以能對糊料原料施以適度壓縮力及 剪切力者爲佳，尤以三輥機之使用爲特佳。此時，被混合 之糊料原料，爲得充分之分散效果可於輥筒間通過二次以 上。此種輥筒型分散機，爲防操作中雜質混入，係以使用 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） (請先閲讀背面之注意事項再填寫本頁) 、1 經濟部智慧財產局員工消費合作社印製 -8- 經濟部智慧財產局員工消費合作社印製 554028 A7 B7 五、發明説明（6) 高級氧化鋁等精密陶瓷輥筒較金屬製輥筒爲佳。爲達本發 明之目的，該中間體的粘度之調整尤爲重要，若所得中間 體之粘度低於某一定値，則無法製造可以形成螢光體粒子 分散性良好，螢光體充塡率高之螢光膜的螢光體糊料組成 物。爲得螢光體之分散性良好，製成螢光膜時螢光體充塡 率良好之螢光膜的螢光體糊料組成物，須適當調節糊料原 料螢光體，粘合劑樹脂及有機溶劑之各配合量，使中間體 溫度在爲2 5 t，剪切速率爲1 0 ( 1 /秒）時該中間體 之粘度在8 0帕·秒以上，較佳者可爲1 〇 〇至 2 0 0 0 0帕•秒，更佳者爲3 0 0至1 〇 〇 〇 〇帕•秒 左右之粘度。 其次，一旦回收如上製得之中間體後，若係得自已含 粘合劑樹脂之糊料原料的中間體，則至少添加有機溶劑， 又，若係得自不含粘合劑樹脂之糊料原料的中間體，則添 加有機溶劑及選定量之粘合劑樹脂，再充攪拌混合，成粘 度低於先前的中間體之螢光體糊料組成物。於該中間體添 加有機溶劑等再次混合處理以降低粘度之步驟中，添加於 中間體之有機溶劑，粘合劑樹脂之添加量，係依最終營光 體糊料組成物之粘度，螢光體含量的期望値作適當調整。 更於中間體添加混合有機溶劑等，可採用以往螢光體 糊料組成物製造時所用之分散機，螺旋漿型攪拌機等或g 合機，行星式混合機，均質機，硏鉢，竹刮刀等作糊料原 料分散處理前預作粗混時所用之混合手段。 本發明之螢光體糊料組成物之製造方法中，螢光體半胡 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐)" '' 衣-- (請先閱讀背面之注意事項再填寫本頁) 訂 -9- 554028 A7 B7 i、發明説明（8) (請先閱讀背面之注意事項再填寫本頁} 經濟部智慧財產局員工消費合作社印製 光體{ (1 — a) (0.82Ba〇.6Al2〇3) · a (BaMgi- bMnbAli〇〇17)， BaMgAl1〇〇17:Mn等丨綠色螢光體，z價銪活化 鋁酸鋇•鎂螢光體（BaMgAl10〇17: Eu2 + )等 藍色螢光體，在紫外線，真空紫外線激起下高亮度發光之 紫外線用螢光體，真空紫外線用螢光體。但是，使用這些 螢光體中，含E u活化劑之2價銪及/或Μ η活化鋁酸鋇 •鎂螢光體（B aMgA 1 i〇〇i7 : Eu2+)等鋁酸鹽 系藍色或綠色發光螢光體時，以本發明之製造方法製得之 螢光體糊料組成物，較之以習知方法製得者螢光體粒子之 分散性更爲良好，用以製成螢光膜時較之使用以習知方法 製造之螢光體糊料組成物時可得螢光體充塡率更高之螢光 膜’故爲較佳。這些含E u活化劑的鋁酸鹽系螢光體中， 例如，含鉀（K )，硫（S )等雜質之螢光體的使用，預 先於表面被覆以鹼土矽酸鹽，硼酸鹽，磷酸鹽等之無機化 合物作處置時，可使該含螢光體之螢光體糊料組成物在烘 烤後売度維持率在8 0 %以上，使用含E u活化劑之銘酸 鹽螢光體，以本發明之製造方法製成螢光體糊料組成物時 ’以之形成螢光膜時，尤以較之使用以往的螢光體糊料組 成物時，可形成螢光體充塡率更高的螢光膜。而，上述之 烘烤後的亮度維持率，係指對螢光體粉體，以及用該螢光 體粉體製成之螢光體糊料組成物之塗膜，於5 0 0 °C烘烤 2 0分鐘後之螢光膜，測定其發光亮度以及發光色度點（ x’y)，求出各發光亮度除以y値之値（亮度/y)， 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -11 - 554028 Α7 Β7 經濟部智慧財產局員工消費合作社印製 五、發明説明（9) 即個別之刺激和，相對於螢光體粉體之刺激和（亮度/ y )的烘烤後螢光膜之刺激和（亮度/ y )的相對値（百分 率）。 又，本發明的螢光體糊料組成物之製造方法中，添加 於螢光體粒子，或用以溶解粘合劑樹脂，調整粘度之有機 溶劑，可均勻安定溶解粘合劑樹脂者即可使用，具體有甲 苯，二甲苯等芳族烴化合物，四氫呋喃，1，2 - 丁氧基 乙烷等醚化合物，丙酮，丁酮等酮化合物，醋酸乙酯，醋 酸丁酯，二乙二醇單丁醚醋酸酯，酞酸二辛酯等酯化合物 ，異丙醇，二乙二醇單丁醚，萜品醇，2 -苯氧基乙醇等 醇化合物等。尤以用於網版印刷時，係以萜品醇，二乙二 醇單丁醚，二乙二醇單丁醚醋酸酯等，沸點在1 7 0 °C以 上之有機溶劑爲佳。 本發明之螢光體糊料組成物的製造方法中，與螢光體 倂用之粘合劑樹脂，若螢光體之分散性優者其種類無限， 唯須能均勻溶解於上述有機溶劑，可用的粘合劑樹脂之例 有，諸如烘烤時燃燒性良好之甲基丙烯酸酯聚合物，苯乙 烯-丙烯酸酯共聚物，聚苯乙烯，聚乙烯醇縮丁醛，聚乙 烯醇，乙基纖維素等之壓克力系，苯乙烯系，纖維素系， 聚乙烯醇系樹脂，而以網版印刷時糊料具流動特性之觸變 性的乙基纖維素爲特佳。 表1示，於1 00重量份之BaMgA 1ι〇〇ΐ7 : E u螢光體（化成Optonix公司製KX-501A， K B Η 3型）添加溶有乙基纖維素之丁基卡必醇醋酸酯與 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） •12- 554028 A7 B7 五、發明説明（作 丁基卡必醇之混合液（粘合劑樹脂液），以萊凱機攪拌5 分鐘簡單混合成糊料原料，先以三輥機分散處理成中間體 ，再於該中間體添加溶有乙基纖維素之丁基卡必醇及丁基 卡必醇醋酸酯之混合液（粘合劑樹脂液），以分散機混合 製成多種螢光體糊料組成物，各用塗布裝置於玻璃板上形 成螢光體塗膜後，於1 2 0 °C乾燥3 0分鐘得多數螢光體 塗膜，其螢光體糊料中間體粘度與用該螢光體糊料組成物 形成的螢光膜之螢光體充塡率之關係。表1中，合倂列有 製造各螢光體糊料組成物之糊料原料之螢光體量〔p〕有 機溶劑〔B〕，中間體粘度，中間體製造後所添加之粘合 劑樹脂及有機溶劑所成之追加原料〔C〕及螢光體糊料組 成物之最終粘度。而表1中各粘度均係2 5 °C溫度下剪切 速率1 0 ( 1/秒）時之粘度，而各螢光體塗膜中螢光體 充塡率（螢光體塗膜中螢光體所占之體積比率）係如下求 出。 螢光體充塡率（％) =〔丨膜中螢光體重量（公克/平方 公分）/{dx螢光體層厚度（公分）丨丨χίοο 但上式中，膜中單位面積之螢光體重量（公克/平方 公分）係螢光體重量對於有機溶劑成分以外的螢光體糊料 組成物之重量的含有比率（即，螢光體糊料組成物的製造 之際，所配合的螢光體重量，對所配合之螢光體，粘合劑 樹脂，其它不揮發成分之總重量之比率）乘以螢光膜之重 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -----1 II ·_丨参— (請先閲讀背面之注意事項再填寫本頁) 訂 f 經濟部智慧財產局員工消費合作社印製 -13- 554028 A7 ---_-_-_ 五、發明説明（ ft的値，又，d表所配合之螢光體的密度（公克/立方公 分）。-5- 028028 A7 B7 V. Description of the invention (3) (Please read the precautions on the back before filling out this page) (1) Phosphor formed by dispersing phosphor particles and binder resin in an organic solvent The method for producing a paste composition is characterized in that it comprises at least dispersing a raw material mixture of a phosphor paste composition containing phosphor particles and an organic solvent, or phosphor particles, a binder resin, and an organic solvent to disperse The device comprises a step of dispersing and treating the intermediate of the phosphor paste composition, and a step of adding a mixed organic solvent or an organic solvent and a binder resin to the intermediate to obtain a viscosity lower than the mixture of the intermediate. (2) When the temperature of the above intermediate is 25 ° C and the shear rate is 10 (1 / s), the viscosity of the intermediate is above 80 Pa · s and the phosphor paste composition of the above (1) Manufacturing method. (3) The above-mentioned intermediate (1) or (2) phosphor paste at a temperature of 25 ° C and a shear rate of 10 (1 / second), with a viscosity of 100 to 20,000 Pa · s Method for manufacturing the material composition. (4) When the temperature of the above intermediate is 2 and the shear rate is 10 (1 / sec) printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the viscosity of the intermediate is between 300 and 1,000 Pa · • The method for producing a phosphor paste composition according to any one of the above (1) to (3) in seconds. (5) The above-mentioned dispersing device is a method for producing a phosphor paste composition according to any one of the above (1) to (4) in a roll-type dispersing machine. (6) The phosphor content of the intermediate of the above phosphor paste composition accounts for 60 to 95% by weight of the total of the intermediate of the phosphor of any one of the above (1) to (5) Manufacturing method of paste composition. (7) The phosphor of the intermediate of the above phosphor paste composition contains the paper standard applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) -6-554028 A7 B7 Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative V. Description of the invention (4) Production method of the phosphor paste composition of (6) above in an amount of 70 to 90% by weight of the intermediate. (8) The method for producing the phosphor paste composition according to any one of (1) to (7) above, in which the phosphor particles are aluminate phosphors containing Eu activator. (9) Disperse the aluminate photoactive particles and the binder resin containing Eu activator in an organic solvent, and apply the coating device on a smooth glass plate to form a phosphor coating film at 120 ° C. A phosphor paste composition having a volume ratio of phosphors in the phosphor coating film in the range of 40 to 70% after 30 minutes of drying. (10) The phosphor paste composition of the above (9) in which the volume ratio of the phosphor in the phosphor coating film is in the range of 45 to 65%. (11) After drying at 120 ° C for 30 minutes, the phosphor coating film was baked at 500 ° C for 30 minutes. The luminous stimulus and (brightness / y 値) were within the above range. The luminous excitation of the aluminate phosphor particles of Eu and the phosphor paste composition of (8) above (brightness / y 値) is 80% or more. (12) A vacuum ultraviolet light-emitting element which is provided with a fluorescent film inside and enclosed in a peripheral device and excites the fluorescent film with vacuum ultraviolet rays emitted by a rare gas discharge. The special feature is that the above-mentioned fluorescent film uses the above-mentioned ( 1) The phosphor paste composition produced by the manufacturing method according to any one of (8) is formed. (13) The above fluorescent film is based on the above (9) to (1 1) (Please read the precautions on the back before filling in this page) Clothing · Ordering f This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 (Mm) 554028 A7 B7 V. Description of the invention (5) The vacuum ultraviolet light of the above (1 2) formed by the phosphor paste composition of any one of (5) excites the light-emitting element. Embodiments of the Invention The present invention will be described in more detail below. The manufacturing method of the phosphor paste composition of the present invention is to first add a small amount of organic solvent to the phosphor particles, and use a mixing machine such as a Leica machine, a kneader, a planetary mixer, a homogenizer made of a stator and a rotor. The raw material mixture (paste raw material) of the paste composition is rough-mixed with a mortar, a bamboo spatula and the like. In addition to the phosphor and the organic solvent, a binder resin may be added to the paste raw material at this time. In this case, the organic solvent mixed with the phosphor particles may be an organic solvent in which a selected amount of the binder resin is dissolved in advance. (Binder resin solution). Further, in addition to the phosphor particles, the binder resin, and the organic solvent, a dispersant for improving the dispersion of the phosphor particles may be added to the paste raw material. Secondly, the high-viscosity coarsely mixed paste raw material with a higher phosphor content is first subjected to a dispersing treatment by a dispersing device to sufficiently disperse the phosphor particles in the paste raw material to obtain a phosphor paste composition. Intermediates (hereinafter referred to as "intermediates"). The dispersing device used for manufacturing intermediates, if the material of the dispersed media paste is passed through the roller gap, while mixing and mixing with each other, as a roller-type disperser for dispersing treatment, it can apply a moderate compression force to the paste material. And shear force is better, especially the use of three-roller machine is particularly good. At this time, the mixed raw materials of the paste can be passed between the rollers more than twice for a sufficient dispersion effect. This type of roller type disperser is to prevent impurities from being mixed in operation. It is based on the Chinese paper standard (CNS) A4 (210X 297 mm). (Please read the precautions on the back before filling this page) 1 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -8- Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 554028 A7 B7 V. Description of the invention (6) Precision ceramic rollers such as high-grade alumina are better than metal rollers. In order to achieve the purpose of the present invention, the adjustment of the viscosity of the intermediate is particularly important. If the viscosity of the obtained intermediate is lower than a certain threshold, it is impossible to manufacture and can form phosphor particles with good dispersibility and high fluorescent filling rate. A phosphor paste composition of a fluorescent film. In order to obtain a good phosphor dispersibility, the phosphor paste composition of a fluorescent film with a good phosphor filling rate when the phosphor film is made, the paste raw material phosphor and the binder resin must be appropriately adjusted And the amount of each of the organic solvents, the viscosity of the intermediate is more than 80 Pa · s when the temperature of the intermediate is 25 t and the shear rate is 10 (1 / second), and the preferred value is 1 〇 The viscosity is about 0 to 2000 Pa · s, and more preferably about 300 to 1000 Pa · s. Secondly, once the intermediate prepared as above is recovered, if it is an intermediate obtained from a paste raw material containing binder resin, at least an organic solvent is added, and if it is obtained from a paste containing no binder resin, For the intermediate of the raw material, an organic solvent and a selected amount of a binder resin are added, and then the mixture is stirred and mixed to form a phosphor paste composition having a viscosity lower than that of the previous intermediate. In the step of adding an organic solvent to the intermediate and remixing the mixture to reduce the viscosity, the amount of the organic solvent and the binder resin added to the intermediate is based on the viscosity of the final phosphor paste composition and the phosphor. Content expectations are adjusted appropriately. In addition, mixed organic solvents are added to the intermediate, and the dispersing machine, propeller type mixer, etc. used in the past to manufacture the phosphor paste composition can be used, or a g-mixer, a planetary mixer, a homogenizer, a mortar, and a bamboo spatula. It is used as a mixing means for pre-rough mixing before dispersing the paste raw materials. In the manufacturing method of the phosphor paste composition of the present invention, the size of the phosphor half-hull paper is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) " '' clothing-(Please read the back first For details, please fill in this page) Order-9- 554028 A7 B7 i. Invention description (8) (Please read the notes on the back before filling out this page} Ministry of Economic Affairs, Intellectual Property Bureau, Employee Consumer Cooperatives, printed body {(1 — A) (0.82Ba〇.6Al2〇3) · a (BaMgi- bMnbAli0017), BaMgAl1007: Mn, etc. 丨 green phosphors, z-valent europium activated barium aluminate • magnesium phosphor (BaMgAl10 〇17: Blue phosphors such as Eu2 +) are ultraviolet phosphors that emit light with high brightness when excited by ultraviolet rays and vacuum ultraviolet rays, and fluorescent substances for vacuum ultraviolet rays. However, these phosphors contain Eu When the divalent europium and / or M η of an activator activates aluminate-based blue or green light-emitting phosphors such as barium aluminate-magnesium phosphors (B aMgA 1 i〇〇i7: Eu2 +), The phosphor paste composition obtained by the manufacturing method has better dispersibility than the phosphor particles obtained by the conventional method. It is better to make a fluorescent film than to use a fluorescent paste composition manufactured by a conventional method to obtain a fluorescent film with a higher filling rate of the phosphor. Therefore, these Eu-containing activators Among aluminate phosphors, for example, phosphors containing impurities such as potassium (K) and sulfur (S) are used, and the surface is coated with an inorganic compound such as alkaline earth silicate, borate, or phosphate in advance. When disposing, the phosphor paste composition containing the phosphor can be maintained at a rate of more than 80% after baking. Using an ammonium salt phosphor containing Eu activating agent, When the manufacturing method is used to form a phosphor paste composition, when a phosphor film is formed, it is possible to form a phosphor having a higher phosphor filling rate than when using a conventional phosphor paste composition. The above-mentioned brightness maintenance rate after baking refers to the coating film of the phosphor powder and the phosphor paste composition made of the phosphor powder at 50 ° C Bake the fluorescent film after 20 minutes, measure its luminous brightness and luminous chromaticity point (x'y), and find each luminous brightness divided by y 値 (brightness / y), Paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) -11-554028 Α7 Β7 Printed by the Consumers ’Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of invention (9) That is, individual stimulus and contrast with phosphor The irritation of the powder and the irritation of the fluorescent film after (brightness / y) and the relative 値 (percentage) of (brightness / y). In the method for producing the phosphor paste composition of the present invention, It can be used on phosphor particles or organic solvents used to dissolve the binder resin and adjust the viscosity. It can be used evenly and stably to dissolve the binder resin. Specific examples include aromatic hydrocarbon compounds such as toluene, xylene, tetrahydrofuran, 1, 2-ether compounds such as butoxyethane, ketone compounds such as acetone, butanone, ethyl acetate, butyl acetate, diethylene glycol monobutyl ether acetate, ester compounds such as dioctyl phthalate, isopropanol, Diethylene glycol monobutyl ether, terpineol, alcohol compounds such as 2-phenoxyethanol, etc. Especially for screen printing, terpineol, diethylene glycol monobutyl ether, diethylene glycol monobutyl ether acetate, etc., organic solvents with a boiling point above 170 ° C are preferred. In the manufacturing method of the phosphor paste composition of the present invention, if the binder resin used for the phosphor is excellent in dispersibility, the types are unlimited, as long as it can be uniformly dissolved in the organic solvent, Examples of usable binder resins are, for example, a methacrylate polymer which has good flammability during baking, a styrene-acrylate copolymer, polystyrene, polyvinyl butyral, polyvinyl alcohol, ethyl Acrylic, styrene, cellulose, and polyvinyl alcohol resins such as cellulose are particularly preferred, and thixotropic ethyl cellulose, which has flow characteristics when the screen is printed, is particularly preferred. Table 1 shows that butyl carbitol acetate in which ethyl cellulose was dissolved was added to 100 parts by weight of BaMgA 1〇〇〇7: Eu phosphor (formed KX-501A manufactured by Optonix, KB Η 3 type) And (please read the precautions on the back before filling this page) This paper size applies the Chinese National Standard (CNS) A4 specification (210 × 297 mm) • 12- 554028 A7 B7 V. Description of the invention (for the mixing of butylcarbitol Liquid (binder resin liquid), mixed with a Leica machine for 5 minutes, and simply mixed into a paste raw material, first dispersed by a three-roller machine to an intermediate, and then added to the intermediate a butyl card in which ethyl cellulose was dissolved A mixture of bisanol and butylcarbitol acetate (binder resin solution) is mixed with a disperser to form a variety of phosphor paste compositions, each of which is used to form a phosphor coating film on a glass plate using a coating device. Then, the phosphor coating film was dried at 120 ° C for 30 minutes. The viscosity of the phosphor paste intermediate and the phosphor filling of the phosphor film formed with the phosphor paste composition were filled. The relationship between the rate. In Table 1, the fluorescence of the paste raw materials used to make each phosphor paste composition is listed. Amount [p] organic solvent [B], intermediate viscosity, final raw material viscosity [C] of the binder resin and organic solvent added after the intermediate is manufactured and the final viscosity of the phosphor paste composition. Each viscosity in 1 is the viscosity at a shear rate of 10 (1 / second) at a temperature of 25 ° C, and the phosphor filling rate in each phosphor coating film (the phosphor in the phosphor coating film) The volume ratio occupied) is obtained as follows: Phosphor filling rate (%) = [丨 weight of the phosphor in the film (g / cm²) / {dx phosphor layer thickness (cm) 丨 丨 χίοο In the formula, the phosphor weight per unit area (g / cm²) in the film is the content ratio of the phosphor weight to the weight of the phosphor paste composition other than the organic solvent component (that is, the phosphor paste composition When manufacturing materials, multiply the weight of the phosphor, the ratio of the total weight of the phosphor, binder resin, and other non-volatile components) by the weight of the fluorescent film. The paper size applies to China Standard (CNS) A4 specification (210X297 mm) ----- 1 II · _ 丨 see — (Please read first Note on the back, please fill in this page again) Order f Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-13- 554028 A7 ---_-_-_ V. Description of the invention The density of the phosphor (g / cm3).
No. 螢光體糊料組成物 螢光膜 糊料原料配合比 中間體粘度 (帕•秒） 追加原料〔 C〕 最終粘度（ 帕•秒） 螢光體充塡 率(％) 螢光體 〔P〕 有機溶劑 ⑻ 1 100 200 0 38 35 2 100 150 45 50 39 35 100 100 88 100 40 37 4 100 50 150 150 40 41 5 100 33 760 167 45 45 -ϋ -...... 1= I 11— —ϋ - - ....... m I - - (請先閱讀背面之注意事項再填寫本頁) 由表1可知，製造螢光體糊料組成物之際，最初於螢 光體粒子添加少量粘合劑樹脂液之糊料原料，以三輥機作 分散處理得粘度約8 0帕•秒以上之中間體，再添加有機 經濟部智慧財產局員工消費合作社印製 溶劑，粘合劑樹脂，混合而得粘度低於該中間體的螢光體 糊料組成物（N 〇 . 3至5 )，其形成之螢光膜，較之僅 作糊料原料之分散處理，不在製程當中先製得中間體，再 添加有機溶劑等以降低粘度，以習知方法製造之螢光體糊 料組成物（Ν ο 1 )，或中間體原料低於約8 〇帕•秒， 經由較低粘度中間體所製造之螢光體糊料組成物（N 〇 . 2 )所形成之螢光膜，具較高之螢光體充塡率。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） _14_ 554028 經濟部智慧財產局員工消費合作社印製 A7 B7五、發明説明（1拿 如此，如上製造之本發明的螢光體糊料組成物所形成 的螢光體塗膜，其中所占螢光體之體積比率依上述方法算 出時，約在4 0至7 0%之範圍，較之以同一方法算出的 以往的螢光體糊料組成物之螢光體塗膜，其中所占螢光體 粒子之體積比率明顯較高，確認可得螢光體充塡率高而間 隙少之螢光膜。 另一方面，本發明之真空紫外線激起發光元件，可以 P D P及稀有氣體燈爲代表。本發明之P D P如同以往， 係將玻璃等前面板及背面板相同配置，其間設有區分出固 定間隔之放電空間的圍壁及顯示用電極，前面板，背面板 及圍壁所圍成之凹部設有螢光體層，封合前面板及背面板 之周圍形成外圍器，將內部排氣並封入A r，X e，N e ，H e等稀有氣體，成爲具有發不同色光之螢光體層而以 二維排列在平板上的多數凹部，可藉封入內部之稀有氣體 之放電，使各螢光體層發光之全彩顯示元件，其螢光膜係 用依上述本發明之方法所製造的螢光體糊料組成物形成。 本發明之稀有氣體燈，係於細玻璃管內壁，用上述以本發 明之方法製造的螢光體糊料組成物形成螢光膜，再於其兩 端或隔管壁形成內外電極，並將細管二端封合成外圍器， 於其內部封入Xe，He - Ne等稀有氣體而成，藉其內 部稀有氣體之放電所產生之真空紫外線，使螢光膜激起而 發光，作爲光源使用。 本發明之真空紫外線激起元件，因係用本發明之製造 方法製得之螢光體糊料組成物形成螢光膜，其中螢光體充 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -15- 554028 A7 B7 五、發明説明（ 塡率高，並且具有反射率提升之螢光膜，較之以往的真空 紫外線激起發光元件，呈現更高亮度之發光。 (請先閱讀背面之注意事項再填寫本頁) 實施例 其次，以實施例說明本發明。 〔實施例〕 PDP用藍色發光螢光體（Ba，Eu)No. Fluorescent Paste Composition Composition of Fluorescent Film Paste Raw Material Viscosity Intermediate Viscosity (Pa · s) Additional Raw Material [C] Final Viscosity (Pa · s) Phosphor Filling Rate (%) Phosphor [ P) Organic solvent ⑻ 1 100 200 0 38 35 2 100 150 45 50 39 35 100 100 88 100 40 37 4 100 50 150 150 40 41 5 100 33 760 167 45 45 -ϋ -...... 1 = I 11 — —ϋ--....... m I--(Please read the precautions on the back before filling in this page) As can be seen from Table 1, when manufacturing the phosphor paste composition, Adding a small amount of binder resin liquid paste raw material to the body particles, using a three-roller machine to disperse the intermediate to a viscosity of about 80 Pa · s or more, and then adding the solvent printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Organic Economics, The mixture resin is mixed to obtain a phosphor paste composition (N 0.3 to 5) having a viscosity lower than that of the intermediate. The fluorescent film formed by the mixture is not in the process of dispersing the paste raw material. A phosphor paste composition prepared by a conventional method in which an intermediate is prepared first, and then an organic solvent is added to reduce the viscosity. Ν ο 1), or a fluorescent film formed from a phosphor paste composition (N 0.2) produced through a lower viscosity intermediate with an intermediate raw material of less than about 80 Pa · s The phosphor charge rate. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297mm) _14_ 554028 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention When the volume ratio of the phosphor coating film formed by the material composition is calculated according to the above method, it is in the range of 40 to 70%, compared with the conventional phosphor calculated by the same method. The phosphor coating film of the paste composition has a significantly higher volume ratio of the phosphor particles, and it is confirmed that a fluorescent film having a high phosphor filling rate and few gaps can be obtained. The vacuum ultraviolet light excites the light-emitting element, which can be represented by PDP and rare gas lamps. The PDP of the present invention is the same as in the past. The front panel and the back panel of glass are the same. A phosphor layer is provided by the electrode, the front panel, the back panel and the recessed portion surrounded by the surrounding wall, and the periphery of the front panel and the back panel is sealed to form a peripheral device, and the interior is exhausted and sealed in A r, X e, N e, H e The rare gas becomes a plurality of recesses having two-dimensional arrays on the flat plate with phosphor layers emitting different colors of light. A full-color display element that can emit light from each phosphor layer by discharging the rare gas enclosed inside, and its fluorescent film It is formed by the phosphor paste composition produced by the method of the present invention. The rare gas lamp of the present invention is attached to the inner wall of a thin glass tube and is composed of the phosphor paste produced by the method of the present invention. It forms a fluorescent film, and then forms internal and external electrodes at its two ends or the wall of the partition tube, and seals the two ends of the thin tube to form a peripheral device. The inside is sealed with rare gases such as Xe, He-Ne, etc. The vacuum ultraviolet ray generated by the discharge causes the fluorescent film to be excited and emit light, and is used as a light source. The vacuum ultraviolet stimulating element of the present invention forms fluorescent light because the phosphor paste composition prepared by the manufacturing method of the present invention Film, which is filled with phosphor (please read the precautions on the back before filling this page) This paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) -15- 554028 A7 B7 (High luminous efficiency and fluorescent film with improved reflectivity, compared with the conventional vacuum ultraviolet light-emitting light-emitting element, showing higher brightness of luminescence. (Please read the precautions on the back before filling this page) Example Second, The present invention will be described by way of examples. [Examples] Blue light-emitting phosphors (Ba, Eu) for PDP
MgA 110〇17 (KX— 501A，KBH3 型，化成 Optonix公司製）1 〇 〇重量份，與溶解於丁基卡必醇及 丁基卡必醇醋酸酯之混合物所成之有機溶劑的乙基纖維素 樹脂（粘合劑樹脂液）5 0重量份之混合物用萊凱機粗混 調製糊料原料，將之以氧化鋁輥之三輥機（分散裝置）混 練將各糊料原料分散，得2 5 t之溫度下剪切速率1 〇 ( 1 /秒）時粘度爲1 5 0帕•秒之泥狀中間體。 經濟部智慧財產局員工消費合作社印製 其次，於該中間體更添加溶解於丁基卡必醇及丁基卡 必醇醋酸酯所成之有機溶劑的乙基纖維素樹脂（粘合劑樹 脂）1 5 0重量份，以分散機充分攪拌混合，製成2 5 °C 溫度下剪切速率1 〇 ( 1 /秒）時粘度爲4 2帕·秒之實 施例的螢光體糊料組成物。 將所得實施例之螢光體糊料組成物以塗布裝置塗布於 玻璃板上，使乾燥後膜厚可爲約1 〇 〇微米，於1 2 0 °c 乾燥3 0分鐘。如此製得之實施例的螢光膜剖面，以電子 顯微照相觀察時，幾無螢光體之脫落可見。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -16- 554028 A7 B7 五、發明説明（1夺 (請先閱讀背面之注意事項再填寫本頁) 另一方面，依上述方法測定該螢光膜中螢光體之體積 比率（螢光體充塡率）時，螢光體之體積比率（螢光體充 塡率）爲4 1 %。 將實施例之螢光體糊料組成物，於表面形成有多數圍 壁（r i b )之2 0毫米X 2 0毫米之玻璃基板上滴下約 1 c c，以刮刀塗布於圍壁內，其次，於1 2 0 °C乾燥 3 0分鐘，於圍壁之內壁面形成螢光膜，其剖面以電子顯 微照相觀察時，幾無螢光體之脫落可見，且無可見之因螢 光膜中螢光體充塡率高所導致的膜變厚之現象（膜增厚現 象）。 〔比較例〕 經濟部智慧財產局員工消費合作社印製 取代5 0重量份之溶解於丁基卡必醇及丁基卡必醇醋 酸酯之混合物所成的有機溶劑之乙基纖維素樹脂（粘合劑 樹脂液），改用2 0 0重量份之溶解於丁基卡必醇及丁基 卡必醇醋酸酯之混合物所成的有機溶劑之乙基纖維素樹脂 (粘合劑樹脂）以外，如同實施例調製糊料原料，將之用 氧化鋁輥之三輥機（分散裝置）作分散處理，得2 5它溫 度下剪切速率1 0 ( 1 /秒）時粘度爲4 1帕•秒之糊狀 螢光體糊料組成物中間體。 其次，於如此而得之中間體無任何添加，用分散機更 予攪拌’製得2 5 °C溫度下剪切速率1 〇 ( 1 /秒）時粘 度爲4 1帕•秒，與上述中間體同一粘度之比較例的螢光 體糊料組成物。 本紙張尺度適用中國國家標準（CNS ) A4規格（210x297公釐） -17- 554028 A7 B7 五、發明説明（1冬 (請先閱讀背面之注意事項再填寫本頁) 其次，完全如同實施例，於基板上形成比較例之螢光 膜，其剖面以電子顯微照相觀察時，多有螢光體脫落（空 隙部）之可見。 又，該比較例之螢光膜中螢光體充塡率爲3 5%。 又再，用該比較例之螢光體組成物，如同實施例於圍 壁上形成螢光膜，以比較例之螢光膜的電子顯微照相觀察 剖面時，可見多有螢光體之脫落，並知有膜變厚之現象（ 膜增厚現象）。 發明之效果 經濟部智慧財產局員工消費合作社印製 本發明因係如上構成，使用以本發明之製造方法製得 之螢光體糊料組成物作成之螢光膜，較之使用以往的螢光 體糊料組成物所形成之螢光膜，其中螢光體之充塡率高， 具備用該螢光體糊料組成物形成之螢光膜的本發明之真空 紫外線激起發光元件，因螢光膜薄，放電空間大，可降低 放電電壓’並且，螢光體充塡率高，可形成反射率高之螢 光膜’可提供較之以往發光亮度更爲提升之真空紫外線激 起發光元件。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -18-MgA 110〇17 (KX-501A, KBH3 type, manufactured by Optonix) 100 parts by weight of ethyl fiber and an organic solvent formed by dissolving in a mixture of butylcarbitol and butylcarbitol acetate 50 parts by weight of the plain resin (binder resin liquid) was mixed with a Laika machine to prepare the paste raw materials, which were kneaded with a three-roller alumina roller (dispersion device) to disperse each paste raw material to obtain 2 A mud-like intermediate with a viscosity of 150 Pa · s at a shear rate of 10 (1 / sec) at a temperature of 5 t. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs followed by adding ethyl cellulose resin (binder resin) dissolved in butyl carbitol and butyl carbitol acetate to organic solvents. 150 parts by weight, thoroughly stirred and mixed with a disperser to prepare a phosphor paste composition of the example having a viscosity of 4 2 Pa · s at a shear rate of 10 (1 / sec) at a temperature of 25 ° C . The phosphor paste composition of the obtained example was coated on a glass plate with a coating device, so that the film thickness after drying could be about 1000 microns, and dried at 120 ° C for 30 minutes. When the cross section of the fluorescent film of the example thus obtained was observed with an electron micrograph, few detachment of the fluorescent body was visible. This paper size applies to Chinese National Standard (CNS) A4 (210X297 mm) -16- 554028 A7 B7 V. Description of the invention (1 win (please read the notes on the back before filling this page) On the other hand, follow the above method When the volume ratio (fluorescence filling rate) of the phosphor in the fluorescent film was measured, the volume ratio (fluorescence filling rate) of the phosphor was 41%. The phosphor paste of the example was used. About 1 cc of the composition was dropped on a glass substrate of 20 mm × 20 mm with a large number of ribs formed on the surface, and then applied to the wall with a doctor blade, followed by drying at 120 ° C for 30 minutes. A fluorescent film is formed on the inner wall surface of the surrounding wall. When the cross-section is observed with an electron micrograph, few of the fluorescent bodies are visible and there is no visible cause due to the high filling rate of the fluorescent film in the fluorescent film. Film thickening phenomenon (film thickening phenomenon). [Comparative Example] Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs to replace 50 parts by weight of a mixture of butylcarbitol and butylcarbitol acetate. Organic cellulose resin (binder resin solution), Using 200 parts by weight of an ethyl cellulose resin (binder resin) in an organic solvent prepared by dissolving in a mixture of butyl carbitol and butyl carbitol acetate, a paste raw material was prepared as in the example. A three-roller (dispersion device) of alumina roll was used for dispersion treatment to obtain a paste-like phosphor paste with a viscosity of 4 1 Pa · s at a shear rate of 10 (1 / s) at a temperature of 25. Second, the intermediate obtained in this way is added without any addition, and is further stirred with a disperser to obtain a viscosity of 4 1 Pa at a shear rate of 10 ° (1 / sec) at a temperature of 25 ° C. • Second, a phosphor paste composition of a comparative example with the same viscosity as the above intermediate. This paper size applies the Chinese National Standard (CNS) A4 specification (210x297 mm) -17- 554028 A7 B7 V. Description of the invention (1 Dong (please read the precautions on the back before filling this page) Secondly, exactly as in the example, a fluorescent film of the comparative example is formed on a substrate. When the cross section is observed with an electron micrograph, there are many phosphors falling off (voids) The phosphors in the fluorescent film of this comparative example are visible. The hafnium ratio was 3 5%. Furthermore, using the phosphor composition of this comparative example, a fluorescent film was formed on the surrounding wall as in the example. When the cross section was observed with an electron micrograph of the fluorescent film of the comparative example, it was seen that Many phosphors fall off, and the film becomes thicker (film thickening phenomenon). Effect of the Invention Printed by the Consumers' Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs The present invention is constructed as above, and the manufacturing method of the present invention is used Compared with the fluorescent film formed by using the conventional fluorescent paste composition, the fluorescent film made of the prepared fluorescent paste composition has a higher filling rate of the fluorescent substance, and is equipped with the fluorescent film. The vacuum ultraviolet-excitation light-emitting element of the present invention, which is a fluorescent film formed from a body paste composition, has a thin fluorescent film and a large discharge space, which can reduce the discharge voltage. In addition, the charge rate of the phosphor is high and the reflectance can be formed. Tall's Fluorescent Film 'can provide vacuum ultraviolet excitation light-emitting elements with higher luminous brightness than before. This paper size applies to China National Standard (CNS) A4 (210X297 mm) -18-