JPS62276736A - Fluorescent character display tube - Google Patents
Fluorescent character display tubeInfo
- Publication number
- JPS62276736A JPS62276736A JP11948086A JP11948086A JPS62276736A JP S62276736 A JPS62276736 A JP S62276736A JP 11948086 A JP11948086 A JP 11948086A JP 11948086 A JP11948086 A JP 11948086A JP S62276736 A JPS62276736 A JP S62276736A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- layer
- positive electrode
- sio2
- anode electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000000758 substrate Substances 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 15
- 239000011230 binding agent Substances 0.000 abstract description 8
- 229910052793 cadmium Inorganic materials 0.000 abstract description 5
- 239000010409 thin film Substances 0.000 abstract description 5
- 229910052725 zinc Inorganic materials 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000000049 pigment Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 7
- 239000000377 silicon dioxide Substances 0.000 abstract 7
- 229910052681 coesite Inorganic materials 0.000 abstract 6
- 229910052906 cristobalite Inorganic materials 0.000 abstract 6
- 229910052682 stishovite Inorganic materials 0.000 abstract 6
- 229910052905 tridymite Inorganic materials 0.000 abstract 6
- 239000010408 film Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000007650 screen-printing Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 239000006059 cover glass Substances 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
Description
【発明の詳細な説明】
1 発明の詳細な説明
〔産業上の利用分野〕
本発明は、数字、記号、図柄等をAl薄膜からなる陽極
電極上に塗布形成した蛍光体層の発光によって表示する
蛍光表示管の構造に関するものであある。[Detailed Description of the Invention] 1. Detailed Description of the Invention [Industrial Application Field] The present invention displays numbers, symbols, designs, etc. by light emission from a phosphor layer coated on an anode electrode made of a thin Al film. This relates to the structure of a fluorescent display tube.
蛍光体層の塗布された陽極に、フィラメントから放出さ
れた電子を衝突させて励起発光させ、蛍光体の塗布面よ
りその表示と観察する蛍光表示管の中に、表示パターン
の複雑化及びそれに伴う給電配線の高密度化により陽極
電極及び給電配線をAl薄膜で形成するタイプの蛍光表
示管がある。The anode coated with a phosphor layer is bombarded with electrons emitted from a filament to excite and emit light, and the display is observed from the phosphor coated surface. Due to the high density of the power supply wiring, there is a type of fluorescent display tube in which the anode electrode and the power supply wiring are formed of a thin Al film.
このタイプの蛍光表示管は、例えば第2図及び第3図に
示す構造を有するもので、即ち、・ガラスなどの絶縁基
板1上に、Al薄膜をスパッタ方式で珍成、これをフォ
ト・エツチングして給電配線lO及び陽極電極911を
形成する。この陽極電電極群11の回)に絶縁層3t−
塗布形成、更に該陽極電極11上の所望の位置に所望の
発光色を有する蛍光体を所望のパターンで順次塗布し約
500°Cの熱処理を行ない蛍光体層61及び62から
なる表示パターン12を形成する。こうして得られれ陽
極基板にメツシュ状のグリッドク、フィラメント8及び
外部リード13を配設し、カバーガラス12で覆い封着
し更に内部を高真空状態に排気し封止するものである。This type of fluorescent display tube has, for example, the structure shown in FIGS. 2 and 3. That is, an Al thin film is formed by sputtering on an insulating substrate 1 such as glass, and this is then photo-etched. Then, a power supply wiring lO and an anode electrode 911 are formed. This anode electrode group 11) has an insulating layer 3t-
After coating and forming, a phosphor having a desired emission color is sequentially applied to a desired position on the anode electrode 11 in a desired pattern, and heat treatment is performed at about 500°C to form a display pattern 12 consisting of phosphor layers 61 and 62. Form. A mesh-like grid, filament 8 and external lead 13 are arranged on the anode substrate thus obtained, covered with a cover glass 12 and sealed, and further the inside is evacuated to a high vacuum state and sealed.
上述した従来のこのタイプの蛍光表示管は、Al薄膜か
らなる陽極電極ll上に塗布形成した蛍光体層61,6
2の接着強度が小さく剥れやすいと云う問題があった。The above-mentioned conventional fluorescent display tube of this type has phosphor layers 61, 6 formed by coating on the anode electrode ll made of a thin Al film.
There was a problem that the adhesive strength of No. 2 was low and it was easy to peel off.
即ち蛍光体層の下地である陽極電極がAlのスパッタで
形成された極く平滑な面を有するのに対し、蛍光体層が
ほぼ球に近い蛍光体粒子の集合体で形成されるためAl
薄膜と蛍光体層の界面では、両者の接触面積が小さく、
外部からの衝撃に充分耐えるだけの接着力に乏しく蛍光
体層形成後の工程で蛍光体層の剥れが発生するものであ
った。That is, while the anode electrode, which is the base of the phosphor layer, is formed by sputtering Al and has an extremely smooth surface, the phosphor layer is formed of an aggregate of nearly spherical phosphor particles, so the Al
At the interface between the thin film and the phosphor layer, the contact area between the two is small;
The phosphor layer did not have sufficient adhesive strength to withstand external impacts, and the phosphor layer peeled off during the process after the phosphor layer was formed.
%に蛍光体の平均粒径が8μ弧から12μ電と比較的大
きい(Zn、Cd)S;AII、C4及び(Zn 。%, the average particle size of the phosphor is relatively large from 8 μ arc to 12 μ arc (Zn, Cd)S; AII, C4 and (Zn).
Cd)S;Au、AJ並び[ZnS;Au、A7!
(7)各蛍光体では、蛍光体層の剥れの現象は著しく、
軽いタッピング(重力加速度換算200G程度)の衝撃
力で剥れが発生するものがあった。陽極基板の品質上の
一般に必要と云われる耐衝撃性は重力加速度換算1,0
OOGである。Cd) S; Au, AJ arrangement [ZnS; Au, A7!
(7) For each phosphor, the phenomenon of peeling of the phosphor layer is remarkable.
There were some cases where peeling occurred due to the impact force of light tapping (approximately 200 G in terms of gravitational acceleration). The impact resistance that is generally said to be necessary for the quality of anode substrates is 1.0 when converted to gravitational acceleration.
It's OOG.
本発明の蛍光表示管は、Al薄膜からなる陽極電極上に
塗布形成した蛍光体の発光からなる表示を蛍光体塗布面
より観察するタイプの蛍光表示管において、前記陽極電
極上にストライプ状又はメッシネ状又はドツト状のS二
02からなる層を形成し、このS二02層を設けた陽極
電極上に蛍光体を塗布形成することにより、蛍光体層と
陽極電極との界面における接着性を向上させたことを特
徴としそいる。The fluorescent display tube of the present invention is a type of fluorescent display tube in which a display consisting of light emission from a phosphor coated and formed on an anode electrode made of a thin Al film is observed from a surface coated with the phosphor. By forming a layer made of S202 in the shape of a dot or dot, and coating the phosphor on the anode electrode provided with this S202 layer, the adhesion at the interface between the phosphor layer and the anode electrode is improved. It seems to be characterized by the fact that
次に実施例により本発明の詳細な説明する。 Next, the present invention will be explained in detail with reference to Examples.
第1図は本発明の実施例を示す部分断面図である。まず
、ガラス基板を絶縁基板1として用い、この絶縁基板1
上にAl薄膜をイオンスパッタリング法により被着しフ
ォト・リソグラフィ法によ如給電配線10と陽極電極1
1を形成した。続いて、低融点ガラス粉末、着色顔料及
び有機バインダーからなる絶縁ペーストをスクリーンプ
リント法により塗布し、580℃で焼成して厚さ25μ
mの絶縁層3を設けた。次に陽極電極11上に酸化ケイ
素及び有機バインダーからなるS二02ペーストヲ÷4
00メッシューステンレススクリーンを用い、0.18
wLピッチで線幅0.08111のストライプ状にプリ
ントし、550℃で焼成し厚さ8μmのストライプ状S
:ot層21を形成した。次KS二02層を形成した
陽極電極11上の一部に、ZnO:Zn蛍光体と有機バ
インダーからなる蛍光体ペーストをスクリーンプリント
法にて塗布し、150℃で乾燥して厚さ20μmの蛍光
体層(1)61を形成、更1cs:02層を形成した陽
極電極11上の他の部分K(Zn、Cd)S:Ay、C
1系蛍光体と有機バインダーからなる蛍光体ペーストを
スクリーンプリント法にて塗布し、500℃で焼成し厚
さ20μmの蛍光体層(2)62を形成した。FIG. 1 is a partial sectional view showing an embodiment of the present invention. First, a glass substrate is used as an insulating substrate 1, and this insulating substrate 1
An Al thin film is deposited thereon by ion sputtering, and power supply wiring 10 and anode electrode 1 are formed by photolithography.
1 was formed. Next, an insulating paste consisting of low melting point glass powder, coloring pigment, and organic binder was applied by screen printing, and baked at 580°C to a thickness of 25 μm.
An insulating layer 3 of m was provided. Next, apply S202 paste consisting of silicon oxide and an organic binder on the anode electrode 11 by 4
0.18 using 00 mesh stainless steel screen
Printed in a stripe shape with a line width of 0.08111 at wL pitch, baked at 550℃, and made into a stripe shape S with a thickness of 8 μm.
: An ot layer 21 was formed. Next, a phosphor paste consisting of a ZnO:Zn phosphor and an organic binder is applied to a part of the anode electrode 11 on which the KS202 layer is formed by screen printing, and dried at 150°C to form a 20 μm thick phosphor paste. Other parts K (Zn, Cd) S: Ay, C
A phosphor paste consisting of a type 1 phosphor and an organic binder was applied by screen printing and fired at 500° C. to form a phosphor layer (2) 62 with a thickness of 20 μm.
以上の操作で得た陽極基板の表示パターン12と対向す
る位置にグリッド7及びフィラメント8を配設し、導電
膜を施したカバーガラス13と陽極基板とを封着し排気
後封止することにより、蛍光表示管を製作した。By arranging the grid 7 and the filament 8 at a position facing the display pattern 12 of the anode substrate obtained by the above operation, and sealing the anode substrate with the cover glass 13 provided with the conductive film, and sealing after evacuation. , manufactured a fluorescent display tube.
得られた蛍光表示管は、陽極電極上に形成されたストラ
イプ状のS二02層により蛍光体層との接触面積が大と
なり、蛍光体層と陽極電極との界面における接着性を向
上させ、重力加速度換算1.0OOGの衝撃試験におい
てZnO:Zn蛍光体及び(Zn、Cd)S;Ay、C
4系蛍光体ともに剥れは発生しなかった。In the obtained fluorescent display tube, the striped S202 layer formed on the anode electrode increases the contact area with the phosphor layer, improving adhesion at the interface between the phosphor layer and the anode electrode. ZnO:Zn phosphor and (Zn, Cd)S;Ay,C in an impact test with a gravitational acceleration of 1.0OOG.
No peeling occurred in any of the 4-type phosphors.
又、S:02層によってストライプ状に被覆された陽極
電極部は、その上に塗布された蛍光体と直接液しないが
蛍光体粒子間の横方向の導電性により発光時のムラは発
生しなかった。In addition, although the anode electrode portion covered in a stripe shape with the S:02 layer does not directly interact with the phosphor coated on it, unevenness during light emission does not occur due to the lateral conductivity between the phosphor particles. Ta.
〔発明の効果〕
以上説明したように本発明は、Al薄膜からなる陽極電
極上に、ストライプ状のS二02層を形成し、このS二
02層の形成された陽極電極上に蛍光体を塗布形成する
ことにより、(Zn、Cd)S:A、!iF。[Effects of the Invention] As explained above, the present invention forms a striped S202 layer on an anode electrode made of an Al thin film, and coats a phosphor on the anode electrode on which the S202 layer is formed. By coating and forming (Zn, Cd)S:A,! iF.
C4系蛍光体等粒径が8〜12μmと大きい蛍光体を用
いた場合でも製造工程又は製品において蛍光体層は下地
である陽極電極と充分な接着性を有し剥れることはない
。Even when a phosphor having a large particle size of 8 to 12 μm, such as a C4-based phosphor, is used, the phosphor layer has sufficient adhesion to the underlying anode electrode and will not peel off during the manufacturing process or product.
又、S:Ox層の形状は、ストライプ状に限定されるも
のではなく、メッシュ状、ドツト状でも同等の効果が確
認された。Further, the shape of the S:Ox layer is not limited to the stripe shape, and the same effect was confirmed even if the shape is a mesh shape or a dot shape.
更に、S:Ox層の形成方法はスクリーンプリント法に
限定されるものではなく、フォト・リングラフィ法等た
よる形成も可能である。Further, the method for forming the S:Ox layer is not limited to the screen printing method, and may also be formed by photophosphorography method or the like.
第1図は本発明の蛍光表示管の構造を示す部分断面図。
第2図は蛍光表示管の破断斜視図。第3図は従来の蛍光
表示管の構造を示す部分断面図。
1・・・・・・絶縁基板、3・・・・・・絶縁層、7・
・・・・・グリッド、8・・・・・・フィラメント、1
0・−・・・・給電配線、11・・・・・・陽極電極、
12・・・・・・表示パターン、13・−・・−・カバ
ーガラス、14・・・・・・リード、61・・・・・・
蛍光体層1.62・・・・・・蛍光体層2.21・・・
・・・本発明ギ II!I
茅 31!IFIG. 1 is a partial sectional view showing the structure of the fluorescent display tube of the present invention. FIG. 2 is a cutaway perspective view of the fluorescent display tube. FIG. 3 is a partial cross-sectional view showing the structure of a conventional fluorescent display tube. 1...Insulating substrate, 3...Insulating layer, 7.
...Grid, 8...Filament, 1
0...--Power supply wiring, 11... Anode electrode,
12...Display pattern, 13...Cover glass, 14...Lead, 61...
Phosphor layer 1.62... Phosphor layer 2.21...
...Inventor II! I Kaya 31! I
Claims (1)
成し該陽極電極上に蛍光体を表示パターン状に塗布形成
しフィラメントからの電子衝撃により発光せしめ表示の
観察を蛍光体塗布面より行なう構造を有する蛍光表示管
において、前記陽極電極上にストライプ状又はメッシュ
状又はドット状のSiO_2層を形成し該SiO_2層
を設けた陽極電極上に蛍光体を塗布形成したことを特徴
とする蛍光表示管。A structure in which an anode electrode made of a thin Al film and a power supply wiring are formed on an insulating substrate, a phosphor is coated on the anode electrode in a display pattern, the electron bombardment from a filament causes the display to emit light, and the display is observed from the surface coated with the phosphor. A fluorescent display tube characterized in that a stripe-shaped, mesh-shaped, or dot-shaped SiO_2 layer is formed on the anode electrode, and a phosphor is coated on the anode electrode provided with the SiO_2 layer. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11948086A JPS62276736A (en) | 1986-05-23 | 1986-05-23 | Fluorescent character display tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11948086A JPS62276736A (en) | 1986-05-23 | 1986-05-23 | Fluorescent character display tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62276736A true JPS62276736A (en) | 1987-12-01 |
Family
ID=14762333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11948086A Pending JPS62276736A (en) | 1986-05-23 | 1986-05-23 | Fluorescent character display tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62276736A (en) |
-
1986
- 1986-05-23 JP JP11948086A patent/JPS62276736A/en active Pending
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