JPH0729529A - Color filter and fluorescent character display tube having color filter - Google Patents

Color filter and fluorescent character display tube having color filter

Info

Publication number
JPH0729529A
JPH0729529A JP17170893A JP17170893A JPH0729529A JP H0729529 A JPH0729529 A JP H0729529A JP 17170893 A JP17170893 A JP 17170893A JP 17170893 A JP17170893 A JP 17170893A JP H0729529 A JPH0729529 A JP H0729529A
Authority
JP
Japan
Prior art keywords
color filter
color filters
anode
color
anode conductor
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.)
Granted
Application number
JP17170893A
Other languages
Japanese (ja)
Other versions
JP2738268B2 (en
Inventor
Yoshihisa Tsuruoka
誠久 鶴岡
Haruhisa Hirakawa
治久 平川
Yoshinari Okamoto
喜成 岡本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Futaba Corp
Original Assignee
Futaba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Futaba Corp filed Critical Futaba Corp
Priority to JP5171708A priority Critical patent/JP2738268B2/en
Priority to US08/273,757 priority patent/US5606462A/en
Publication of JPH0729529A publication Critical patent/JPH0729529A/en
Priority to US08/426,406 priority patent/US5559397A/en
Application granted granted Critical
Publication of JP2738268B2 publication Critical patent/JP2738268B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To provide color filters by which light transmissive positive electrode conductors can be formed uniformly without deformation and upon which the influence of etching is not exerted when the positive electrode conductors are formed. CONSTITUTION:Light transmissive positive electrode conductors 3 are formed uniformly on an undeformed light transmissive positive electrode board 2. Color filters R, G and B are formed so as to cover the positive electrode conductors 3. The color filters are obtained by baking them after a material formed by mixing a conductive substance by 0.01 to 30wt.% in composite oxide pigment is arranged in a prescribed pattern. Phosphor layers 4 are formed on the color filters. The phosphor layers 4 are continued electrically to the positive electrode conductors 3 through the conductive substance of the color filters. Since a thickness of the color filters and a particle diameter of the conductive substance are almost equal to each other, the color filters have electrical conductivity only in the thickness direction. Even if the adjacent color filters come into contact with each other, they are not continued electrically.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、カラーフィルタ及びカ
ラーフィルタを有する蛍光表示管に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color filter and a fluorescent display tube having the color filter.

【0002】[0002]

【従来の技術】カラーフィルタを用いてフルカラー表示
を行う蛍光表示管が知られている。図3はかかる蛍光表
示管100の部分拡大図であり、表示部が設けられた陽
極基板101の近傍の構造を示している。
2. Description of the Related Art Fluorescent display tubes that perform full-color display using color filters are known. FIG. 3 is a partially enlarged view of the fluorescent display tube 100, showing a structure in the vicinity of the anode substrate 101 provided with a display section.

【0003】この蛍光表示管100は気密構造の外囲器
を有している。外囲器の一部を構成する絶縁性で透光性
の陽極基板101の内面には、R(赤),G(緑),B
(青)の各色からなる3種類の帯状のカラーフィルタ1
02,103,104が順に繰り返して隙間なく配設さ
れている。各カラーフィルタの上には、透光性で帯状の
陽極導体105がそれぞれ配設されている。各陽極導体
105の上には、帯状の蛍光体層106がそれぞれ形成
されている。すなわち、帯状の蛍光体層106は帯状の
前記陽極導体105とともに、所定間隔を置いて互いに
平行な多数の帯状の陽極107を構成している。蛍光体
の種類は共通で、例えば緑色を中心とした発光スペクト
ルを有するZnO:Zn蛍光体が用いられる。
The fluorescent display tube 100 has an envelope having an airtight structure. R (red), G (green), and B (B) are formed on the inner surface of the insulating and translucent anode substrate 101 that forms a part of the envelope.
Three types of band-shaped color filters 1 of each color (blue)
02, 103, and 104 are repeatedly arranged in this order without any gap. A transparent and band-shaped anode conductor 105 is provided on each color filter. A strip-shaped phosphor layer 106 is formed on each anode conductor 105. That is, the strip-shaped phosphor layer 106, together with the strip-shaped anode conductor 105, constitutes a large number of strip-shaped anodes 107 that are parallel to each other at predetermined intervals. The type of phosphor is common, and for example, a ZnO: Zn phosphor having an emission spectrum centered on green is used.

【0004】そして図示はしないが、ストライプ状の前
記各陽極107の上方には、所定構造の制御電極や電子
を放出する陰極が設けられて、該陽極107とともに駆
動マトリクスが構成されている。このような構成の蛍光
表示管100をマトリクス駆動すると、帯状の各陽極1
07内において、選択された部分の蛍光体から発せられ
た緑色の光は、各カラーフィルタ102,103,10
4及び陽極基板101を通過して各カラーフィルタの色
に観察される。
Although not shown, a control electrode having a predetermined structure and a cathode for emitting electrons are provided above each of the stripe-shaped anodes 107, and a drive matrix is formed together with the anodes 107. When the fluorescent display tube 100 having such a structure is matrix-driven, each strip-shaped anode 1
In 07, the green light emitted from the phosphor of the selected portion is emitted from each of the color filters 102, 103, 10
4 and the anode substrate 101, and the color of each color filter is observed.

【0005】前述したカラーフィルタを形成する場合、
従来はフリットガラス粉末に特定色の顔料を混ぜたカラ
ーフィルタ材料を必要な各色ごとに用意していた。そし
てカラーフィルタの各色ごとに各カラーフィルタ材料を
陽極基板101上に印刷して乾燥させ、全色のカラーフ
ィルタ材料を印刷・乾燥させた後で一括して焼成してい
た。
When forming the above-mentioned color filter,
Conventionally, a color filter material prepared by mixing a frit glass powder with a pigment of a specific color has been prepared for each required color. Then, each color filter material for each color of the color filter is printed on the anode substrate 101 and dried, and the color filter materials for all colors are printed and dried, and then collectively fired.

【0006】[0006]

【発明が解決しようとする課題】前述したように、カラ
ーフィルタは無機材料を主成分とするカラーフィルタ材
料を焼成して形成するので、陽極基板の上で平坦になり
にくく、表面に相当の凹凸が生じる場合が多かった。
As described above, since the color filter is formed by firing a color filter material containing an inorganic material as a main component, it is hard to be flat on the anode substrate, and the surface is considerably uneven. Often occurred.

【0007】このため、カラーフィルタの上に細い陽極
導体を例えば1mm幅といった微細なピッチで均一に形
成するのは極めて困難であり、各陽極導体の抵抗を均一
にすることは難しかった。ITO膜を利用する場合には
陽極導体が非常に薄くなるので、特にカラーフィルタの
凹凸に影響されやすく、抵抗値が大きく変わってしま
う。また、陽極導体としてアルミニウム薄膜を利用して
も、カラーフィルタの凹凸に影響されて抵抗値が高くな
ったり、断線してしまうことがあった。
For this reason, it is extremely difficult to uniformly form a thin anode conductor on the color filter at a fine pitch of, for example, 1 mm width, and it is difficult to make the resistance of each anode conductor uniform. When the ITO film is used, the anode conductor becomes very thin, so that it is particularly susceptible to the unevenness of the color filter, and the resistance value changes greatly. Even when an aluminum thin film is used as the anode conductor, the resistance value may be increased or the wire may be broken due to the influence of the unevenness of the color filter.

【0008】また、前記陽極導体はエッチングによって
ストライプ状に形成することができるが、エッチングに
用いる薬品によってカラーフィルタが劣化し、さらに又
カラーフィルタに凹凸ができたり、さらに陽極導体が溶
けて断線したりするという問題があった。
The anode conductor can be formed into a stripe shape by etching, but the color filter is deteriorated by the chemicals used for etching, and the color filter is made uneven, and the anode conductor is melted and broken. There was a problem that

【0009】本発明は、前記従来の問題点に鑑みて成さ
れたもので、透光性の陽極導体を変形なく均一に形成で
きるとともに、陽極導体を形成するときのエッチングの
影響を受けないカラーフィルタを提供することを第1の
目的とし、さらにこのようなカラーフィルタを有する蛍
光表示管を提供することを第2の目的としている。
The present invention has been made in view of the above-mentioned conventional problems, and it is possible to uniformly form a light-transmissive anode conductor without deformation and a collar that is not affected by etching when forming the anode conductor. A first object is to provide a filter, and a second object is to provide a fluorescent display tube having such a color filter.

【0010】[0010]

【課題を解決するための手段】請求項1に記載されたカ
ラーフィルタは、絶縁性の無機顔料に導電性材料を混合
したカラーフィルタ材料からなることを特徴としてい
る。
A color filter according to a first aspect of the present invention is characterized by comprising a color filter material in which a conductive material is mixed with an insulating inorganic pigment.

【0011】請求項2に記載された蛍光表示管は、前記
導電性材料として導電物質の微粒子を備えている。
The fluorescent display tube according to a second aspect includes fine particles of a conductive substance as the conductive material.

【0012】請求項3に記載されたカラーフィルタは表
示管用であって、陽極基板の内面に形成された陽極導体
と、絶縁性無機顔料に導電性微粒子を混合して該陽極導
体上に被着したカラーフィルタ材料とを有している。
A color filter according to a third aspect of the present invention is for a display tube, wherein an anode conductor formed on the inner surface of an anode substrate and insulating fine particles of inorganic pigment are mixed with conductive fine particles and deposited on the anode conductor. Color filter material.

【0013】請求項4に記載された蛍光表示管は、外囲
器と、前記外囲器の一部を構成する絶縁性の陽極基板の
内面に形成された透光性の陽極導体と、絶縁性の無機顔
料に導電性材料を混合したカラーフィルタ材料によって
前記陽極導体の少なくとも上面に形成されたカラーフィ
ルタと、前記カラーフィルタの上面に形成された蛍光体
層とを備えている。
According to a fourth aspect of the present invention, there is provided a fluorescent display tube, wherein an envelope, a translucent anode conductor formed on an inner surface of an insulative anode substrate forming a part of the envelope, and an insulation A color filter material formed by mixing a conductive inorganic pigment with a conductive material and formed on at least the upper surface of the anode conductor; and a phosphor layer formed on the upper surface of the color filter.

【0014】[0014]

【作用】陽極導体は、陽極基板の上に直接設けるので、
変形なく均一に形成することができる。カラーフィルタ
は、陽極導体を形成した後に、陽極導体の上から形成す
るので、陽極導体の形成に用いるエッチング液の悪影響
を受けない。蛍光体層と陽極導体は、導電性を有するカ
ラーフィルタを介して導通する。
[Function] Since the anode conductor is directly provided on the anode substrate,
It can be formed uniformly without deformation. Since the color filter is formed on the anode conductor after forming the anode conductor, it is not adversely affected by the etching solution used for forming the anode conductor. The phosphor layer and the anode conductor are electrically connected through the color filter having conductivity.

【0015】[0015]

【実施例】本発明の第1実施例を図1を参照して説明す
る。本実施例は、フルカラーでグラフィック表示を行う
ことのできる蛍光表示管1に関する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIG. The present embodiment relates to a fluorescent display tube 1 capable of performing full-color graphic display.

【0016】本実施例の蛍光表示管1は、絶縁性及び透
光性を有する図1に示す陽極基板2と、絶縁性を有する
図示しない陰極基板とが、図示しない絶縁性のスペーサ
部材を介して一体に封着された箱形の外囲器を有してい
る。外囲器の内部は高真空状態に保持されている。
In the fluorescent display tube 1 of this embodiment, an anode substrate 2 having insulation and translucency shown in FIG. 1 and a cathode substrate (not shown) having insulation are provided with an insulating spacer member not shown. It has a box-shaped envelope integrally sealed. The inside of the envelope is kept in a high vacuum state.

【0017】図1に示すように、陽極基板2の内面に
は、透光性を有する多数の帯状の陽極導体3が所定間隔
を置いてストライプ状に配設されている。
As shown in FIG. 1, a large number of translucent strip-shaped anode conductors 3 are arranged on the inner surface of the anode substrate 2 in stripes at predetermined intervals.

【0018】各陽極導体3は、カラーフィルタR,G,
Bで覆われている。カラーフィルタの種類は例えばR
(赤),G(緑),B(青)の3種類であり、所定の順
序で繰り返して設けられている。各カラーフィルタR,
G,Bは、陽極導体3の上面及び側面を覆い、陽極基板
2の上面にも接しているが、隣接するカラーフィルタ同
士は接触していない。
Each anode conductor 3 has color filters R, G,
Covered with B. The type of color filter is, for example, R
There are three types (red), G (green), and B (blue), which are repeatedly provided in a predetermined order. Each color filter R,
G and B cover the upper surface and the side surface of the anode conductor 3 and are in contact with the upper surface of the anode substrate 2, but the adjacent color filters are not in contact with each other.

【0019】前記各カラーフィルタR,G,Bの上に
は、帯状の蛍光体層4がそれぞれ形成されている。すな
わち、帯状の蛍光体層4は帯状の前記陽極導体3ととも
に、所定間隔を置いて互いに平行な多数の帯状の陽極5
を構成している。蛍光体の種類は共通で、例えば緑色を
中心とした発光スペクトルを有するZnO:Zn蛍光体
が用いられる。
Band-shaped phosphor layers 4 are formed on the color filters R, G and B, respectively. That is, the strip-shaped phosphor layer 4 includes the strip-shaped anode conductor 3 and a large number of strip-shaped anodes 5 that are parallel to each other at a predetermined interval.
Are configured. The type of phosphor is common, and for example, a ZnO: Zn phosphor having an emission spectrum centered on green is used.

【0020】図示はしないが、前記ストライプ状の前記
陽極5の上方には、所定構造の制御電極や電子を放出す
る陰極等が設けられて、該陽極5とともに駆動マトリク
スが構成されている。
Although not shown, a control electrode having a predetermined structure, a cathode that emits electrons, and the like are provided above the striped anode 5, and a drive matrix is formed with the anode 5.

【0021】前記カラーフィルタR,G,Bは、複合酸
化物系顔料を基体とした無機フィルタ材料中にIn2
3,SnO2,ZnO,ITO,Au,Ag,Cu,Ni,
Al,W,Pt等の導電物質を0.01〜30wt%混
合して導電性を付与したカラーフィルタ材料から成る。
The color filters R, G, B are made of In 2 O in an inorganic filter material based on a complex oxide pigment.
3, SnO 2, ZnO, ITO, Au, Ag, Cu, Ni,
The color filter material is made of a conductive material such as Al, W, and Pt mixed with 0.01 to 30 wt% to give conductivity.

【0022】前記カラーフィルタR,G,Bの膜厚は数
千オングストロームであり、前記導電物質の大きさもこ
れに準じて数百〜数千オングストロームの小さい粒径の
ものを使用している。従って、前記蛍光体層4と陽極導
体3はカラーフィルタR,G,B中の導電物質6を介し
て導通する。
The film thickness of the color filters R, G, B is several thousand angstroms, and the size of the conductive material is in accordance with this, and the particle size is as small as several hundred to several thousand angstroms. Therefore, the phosphor layer 4 and the anode conductor 3 are electrically connected through the conductive material 6 in the color filters R, G, B.

【0023】前記カラーフィルタR,G,Bは、異方導
電性を有することが好ましい。即ち、前記導電物質6の
混合量を適宜に調整し、カラーフィルタR,G,Bの厚
さ方向のみについて電気的な導通が得られ、横方向には
導通せずに絶縁されるような状態となる事が好ましい。
しかしながら、本実施例においては、隣接するカラーフ
ィルタは互いに接触していないので、カラーフィルタの
異方導電性は必ずしも必要な条件ではない。
The color filters R, G and B preferably have anisotropic conductivity. That is, the amount of the conductive material 6 is appropriately adjusted so that electrical conduction is obtained only in the thickness direction of the color filters R, G, and B, and the color filters R, G, and B are not electrically conducted in the lateral direction but are insulated. It is preferable that
However, in this embodiment, since the adjacent color filters are not in contact with each other, the anisotropic conductivity of the color filters is not always a necessary condition.

【0024】このような構成の蛍光表示管1をマトリク
ス駆動し、帯状の各陽極5内において蛍光体層4の選択
した部分に電子を射突させると、対応する陽極導体3に
は陽極電流が流れ、該蛍光体層4から発せられた緑色の
光は、各カラーフィルタR,G,B及び陽極基板2を通
過して各カラーフィルタR,G,Bの色に観察される。
When the fluorescent display tube 1 having such a structure is matrix-driven and electrons are projected onto a selected portion of the phosphor layer 4 in each strip-shaped anode 5, an anode current is applied to the corresponding anode conductor 3. The green light flowing and emitted from the phosphor layer 4 passes through the color filters R, G, B and the anode substrate 2 and is observed in the colors of the color filters R, G, B.

【0025】前記蛍光表示管1の製造工程の要部を説明
すると、まず陽極基板2上にストライプ状の陽極導体3
を形成する。次に複合酸化物系顔料を基体とした無機フ
ィルタ材料と、所定量及び粒度の導電物質6と、粘着物
質としてのビークルとを混合して得たペースト状のカラ
ーフィルタ材料を用意する。このカラーフィルタ材料を
フォトリソ法または印刷法等の手法により前記陽極基板
2上の各陽極導体3の上から帯状に被着形成する。カラ
ーフィルタ材料の被着は各色毎に行い、その都度乾燥さ
せ、一括して焼成する。そして、印刷法・電着法・フォ
トリソグラフィ等の手法で各カラーフィルタR,G,B
上に同一種類の蛍光体を被着し、ストライプ状の陽極5
を形成する。
The main part of the manufacturing process of the fluorescent display tube 1 will be described. First, the stripe-shaped anode conductor 3 is formed on the anode substrate 2.
To form. Next, a paste-like color filter material obtained by mixing an inorganic filter material based on a composite oxide pigment, a conductive substance 6 having a predetermined amount and particle size, and a vehicle as an adhesive substance is prepared. This color filter material is formed in a strip shape on each anode conductor 3 on the anode substrate 2 by a method such as a photolithography method or a printing method. The color filter material is applied for each color, dried each time, and fired collectively. Then, each color filter R, G, B is applied by a method such as a printing method, an electrodeposition method, or photolithography.
Stripe-shaped anode 5 with the same type of phosphor deposited on top
To form.

【0026】上記の製造工程において、陽極導体3は陽
極基板2の上に直接設けられるので、所定の微細な寸法
通りに変形なく均一に形成できる。また、陽極導体3の
上から被着形成されたカラーフィルタR,G,Bは、絶
縁性の無機材料を主成分としているが、カラーフィルタ
R,G,Bの厚さに準じた粒径の導電物質6を所定の混
合量だけ含んでいるので、少なくとも厚さ方向には導電
性を有している。
In the above manufacturing process, since the anode conductor 3 is directly provided on the anode substrate 2, it can be uniformly formed according to a predetermined fine dimension without deformation. Further, the color filters R, G, B deposited and formed on the anode conductor 3 are mainly composed of an insulating inorganic material, but have a particle size according to the thickness of the color filters R, G, B. Since the conductive material 6 is contained in a predetermined mixing amount, it has conductivity at least in the thickness direction.

【0027】また上記の製造工程において、陽極導体3
を形成するためにエッチングを行ったとしても、カラー
フィルタR,G,Bの製造はこの陽極導体の形成後なの
で、該カラーフィルタR,G,Bがエッチング液によっ
て悪影響を受ける恐れはない。
Further, in the above manufacturing process, the anode conductor 3
Even if etching is performed to form the color filters R, G, and B, since the production of the anode conductor is performed, the color filters R, G, and B are not likely to be adversely affected by the etching solution.

【0028】次に、図2を参照して第2実施例を説明す
る。本実施例の基本的構成は第1実施例と同様である。
さらに図2において第1実施例と同様の構成部分には図
1と同一の符号を付してその説明を省略する。
Next, a second embodiment will be described with reference to FIG. The basic configuration of this embodiment is similar to that of the first embodiment.
Further, in FIG. 2, the same components as those in the first embodiment are designated by the same reference numerals as those in FIG. 1 and their description is omitted.

【0029】第2実施例においては、隣接するカラーフ
ィルタr,g,bが、隣接する陽極導体3,3の間にあ
る陽極基板2の上において、互いに上下に重なってい
る。
In the second embodiment, the adjacent color filters r, g and b are vertically overlapped with each other on the anode substrate 2 between the adjacent anode conductors 3 and 3.

【0030】本実施例のカラーフィルタr,g,bは、
前述した異方導電性を有しているので、隣接する端部同
士が重なっても導通することはない。また隣接する陽極
導体3,3の間の領域は重なった2種のカラーフィルタ
によって完全に覆われるので、蛍光体層4の発光がこの
部分から陽極基板2を通って漏れ出てしまう恐れはな
い。即ち陽極導体3,3間で重なっているカラーフィル
タは暗色になり、光を通しにくくブラックマスクとして
の機能を有する。その外、本実施例によっても第1実施
例と同様の効果が得られる。
The color filters r, g, b of this embodiment are
Since it has the anisotropic conductivity described above, it does not conduct even if the adjacent ends overlap each other. Further, since the area between the adjacent anode conductors 3 is completely covered with the two kinds of overlapping color filters, there is no possibility that the light emission of the phosphor layer 4 leaks from this portion through the anode substrate 2. . That is, the color filters overlapping between the anode conductors 3 and 3 are dark in color, and it is difficult for light to pass therethrough and has a function as a black mask. Besides, according to the present embodiment, the same effect as that of the first embodiment can be obtained.

【0031】以上説明した各実施例では、表示装置とし
て蛍光表示管を例示したが、透光性の陽極基板及び陽極
導体を介して発光を観察するカラー表示装置であれば、
本発明のカラーフィルタを有効に適用できる。また、蛍
光体がZnO:Zn一色の場合を説明したが、R,G,
B各々のカラーフィルタに対応した互いに異なった発光
色の蛍光体を使い、各色の色純度をさらに向上させるよ
うにしてもよい。
In each of the embodiments described above, a fluorescent display tube is illustrated as a display device, but if it is a color display device that observes light emission through a transparent anode substrate and an anode conductor,
The color filter of the present invention can be effectively applied. Also, the case where the phosphor is a single color ZnO: Zn has been described, but R, G,
You may make it further improve the color purity of each color by using the fluorescent substance of a different emission color corresponding to each B color filter.

【0032】[0032]

【発明の効果】本発明のカラーフィルタまたは本発明の
蛍光表示管に設けられたカラーフィルタによれば、導電
性材料が混合されているので、次のような効果が得られ
る。
According to the color filter of the present invention or the color filter provided in the fluorescent display tube of the present invention, since the conductive material is mixed, the following effects can be obtained.

【0033】(1)陽極基板上に直接陽極導体を設け、
その上にカラーフィルタを被着することにより、導電性
のカラーフィルタを形成することができるので、カラー
フィルタ及び陽極導体を必要とする表示装置に利用する
ことができる。
(1) An anode conductor is directly provided on the anode substrate,
Since a conductive color filter can be formed by depositing a color filter on it, it can be used for a display device which requires a color filter and an anode conductor.

【0034】(2)カラーフィルタ形成時には400〜
600℃の大気焼成を行うので陽極基板が変形しがちで
あるが、カラーフィルタ形成前の変形がない状態で陽極
基板上に直接陽極導体を形成するので、微細な配線パタ
ーンが実現できる。
(2) When the color filter is formed, 400 to
Since the anode substrate tends to be deformed because it is fired at 600 ° C. in the air, the fine wiring pattern can be realized because the anode conductor is directly formed on the anode substrate without deformation before the color filter is formed.

【0035】(3)カラーフィルタは陽極導体を形成し
た後に形成するので、陽極導体を形成する際に用いるエ
ッチング液がカラーフィルタを劣化させる恐れがない。
(3) Since the color filter is formed after forming the anode conductor, there is no fear that the etching solution used for forming the anode conductor deteriorates the color filter.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の第1実施例である画像表示装置の陽極
基板付近における部分拡大断面図である。
FIG. 1 is a partially enlarged cross-sectional view near an anode substrate of an image display device that is a first embodiment of the present invention.

【図2】本発明の第2実施例である画像表示装置の陽極
基板付近における部分拡大断面図である。
FIG. 2 is a partially enlarged sectional view near an anode substrate of an image display device according to a second embodiment of the present invention.

【図3】従来のカラーフィルタを備えた蛍光表示装置の
陽極基板付近における部分拡大断面図である。
FIG. 3 is a partially enlarged cross-sectional view in the vicinity of an anode substrate of a conventional fluorescent display device including a color filter.

【符号の説明】[Explanation of symbols]

1 蛍光表示管 2 陽極基板 3 陽極導体 4 蛍光体層 R,G,B,r,g,b カラーフィルタ 1 Fluorescent Display Tube 2 Anode Substrate 3 Anode Conductor 4 Phosphor Layer R, G, B, r, g, b Color Filter

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 絶縁性の無機顔料に導電性材料を混合し
たカラーフィルタ材料からなるカラーフィルタ。
1. A color filter comprising a color filter material in which a conductive material is mixed with an insulating inorganic pigment.
【請求項2】 前記導電性材料が導電物質の微粒子であ
る請求項1記載のカラーフィルタ。
2. The color filter according to claim 1, wherein the conductive material is fine particles of a conductive substance.
【請求項3】 陽極基板の内面に形成された陽極導体
と、絶縁性無機顔料に導電性微粒子を混合して該陽極導
体上に被着したカラーフィルタ材料とを有する表示管用
のカラーフィルタ。
3. A color filter for a display tube, comprising: an anode conductor formed on the inner surface of an anode substrate; and a color filter material obtained by mixing conductive fine particles with an insulating inorganic pigment and depositing the color filter material on the anode conductor.
【請求項4】 外囲器と、前記外囲器の一部を構成する
絶縁性の陽極基板の内面に形成された透光性の陽極導体
と、絶縁性の無機顔料に導電性材料を混合したカラーフ
ィルタ材料によって前記陽極導体の少なくとも上面に形
成されたカラーフィルタと、前記カラーフィルタの上面
に形成された蛍光体層とを備えたカラーフィルタを有す
る蛍光表示管。
4. An envelope, a translucent anode conductor formed on the inner surface of an insulative anode substrate forming a part of the envelope, and an insulative inorganic pigment mixed with a conductive material. A fluorescent display tube having a color filter comprising a color filter formed on at least an upper surface of the anode conductor by the color filter material described above, and a phosphor layer formed on an upper surface of the color filter.
JP5171708A 1993-07-12 1993-07-12 Fluorescent display tube with color filter Expired - Fee Related JP2738268B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP5171708A JP2738268B2 (en) 1993-07-12 1993-07-12 Fluorescent display tube with color filter
US08/273,757 US5606462A (en) 1993-07-12 1994-07-12 Color filter and fluorescent display device having color filters incorporated therein
US08/426,406 US5559397A (en) 1993-07-12 1995-04-21 Color filter and fluorescent display device having color filters incorporated therein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5171708A JP2738268B2 (en) 1993-07-12 1993-07-12 Fluorescent display tube with color filter

Publications (2)

Publication Number Publication Date
JPH0729529A true JPH0729529A (en) 1995-01-31
JP2738268B2 JP2738268B2 (en) 1998-04-08

Family

ID=15928210

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5171708A Expired - Fee Related JP2738268B2 (en) 1993-07-12 1993-07-12 Fluorescent display tube with color filter

Country Status (1)

Country Link
JP (1) JP2738268B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2746211A1 (en) * 1996-03-12 1997-09-19 Futaba Denshi Kogyo Kk Colour filter manufacture for display device
WO2023221199A1 (en) * 2022-05-16 2023-11-23 Tcl华星光电技术有限公司 Color filter and method for manufacturing same, and display panel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169851A (en) * 1982-03-31 1983-10-06 Ise Electronics Corp Fluorescent display tube

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169851A (en) * 1982-03-31 1983-10-06 Ise Electronics Corp Fluorescent display tube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2746211A1 (en) * 1996-03-12 1997-09-19 Futaba Denshi Kogyo Kk Colour filter manufacture for display device
WO2023221199A1 (en) * 2022-05-16 2023-11-23 Tcl华星光电技术有限公司 Color filter and method for manufacturing same, and display panel
JP2024524782A (en) * 2022-05-16 2024-07-09 ティーシーエル チャイナスター オプトエレクトロニクス テクノロジー カンパニー リミテッド Color filter substrate, its manufacturing method and display panel
US12169332B2 (en) 2022-05-16 2024-12-17 Tcl China Star Optoelectronics Technology Co., Ltd. Color filter substrate, manufacturing method thereof, and display panel

Also Published As

Publication number Publication date
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