JPH0826308B2 - Blue light emitting phosphor and cathode ray tube using the same - Google Patents
Blue light emitting phosphor and cathode ray tube using the sameInfo
- Publication number
- JPH0826308B2 JPH0826308B2 JP4075007A JP7500792A JPH0826308B2 JP H0826308 B2 JPH0826308 B2 JP H0826308B2 JP 4075007 A JP4075007 A JP 4075007A JP 7500792 A JP7500792 A JP 7500792A JP H0826308 B2 JPH0826308 B2 JP H0826308B2
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- activated
- ray tube
- weight
- cathode ray
- 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.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7767—Chalcogenides
- C09K11/7769—Oxides
- C09K11/777—Oxyhalogenides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/58—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing copper, silver or gold
- C09K11/582—Chalcogenides
- C09K11/584—Chalcogenides with zinc or cadmium
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/61—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing fluorine, chlorine, bromine, iodine or unspecified halogen elements
- C09K11/611—Chalcogenides
- C09K11/612—Chalcogenides with zinc or cadmium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/187—Luminescent screens screens with more than one luminescent material (as mixtures for the treatment of the screens)
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Luminescent Compositions (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は光電流密度下で用いられ
る青色発光蛍光体およびこれを用いた陰極線管に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blue light emitting phosphor used under a photocurrent density and a cathode ray tube using the same.
【０００２】[0002]
【従来の技術】一般に使われるカラー陰極線管用青色発
光蛍光体としては、銀付活塩素共付活硫化亜鉛蛍光体
（ＺｎＳ：Ａｇ，Ｃｌ）および銀付活アルミニウム共付
活硫化亜鉛蛍光体（ＺｎＳ：Ａｇ，Ａｌ）等がある。2. Description of the Related Art As a commonly used blue light-emitting phosphor for a color cathode ray tube, a silver-activated chlorine co-activated zinc sulfide phosphor (ZnS: Ag, Cl) and a silver-activated aluminum co-activated zinc sulfide phosphor (ZnS) are used. : Ag, Al) and the like.
【０００３】近年カラー陰極線管への印加電圧が高圧化
されると共に、電子銃からの電子ビームが高電流密度化
されるにつれ、前述した２つの蛍光体のうち、ＺｎＳ：
Ａｇ，Ａｌ蛍光体がＺｎＳ：Ａｇ，Ｃｌより発光輝度に
おいては多少低いが、高磁極電流密度下では比較的良好
な特性を示すので現在多用されている。In recent years, as the voltage applied to the color cathode ray tube has been increased and the electron beam from the electron gun has been increased in current density, ZnS:
The Ag and Al phosphors are slightly lower in emission brightness than ZnS: Ag, Cl, but exhibit relatively good characteristics under a high magnetic pole current density, and are therefore frequently used.
【０００４】しかし、投射管用ＴＶ、ＨＤ−ＴＶ等のよ
うな高励起条件下においては、電流−輝度飽和特性が満
足できるほど良好でなくて、最近では輝度飽和特性が優
秀な希土類系青色発光蛍光体を開発するための研究が多
くの関心を集めている。However, under high excitation conditions such as TV for projection tubes, HD-TV, etc., the current-luminance saturation characteristics are not satisfactory enough, and recently, rare-earth blue light emitting fluorescence having excellent luminance saturation characteristics. Research to develop the body has received much interest.
【０００５】Ｔａ、Ｅｒ、ＴｍおよびＣｅ等で付活され
Ｌａ、Ｇｄ、Ｌｕ等の希土類酸化ハロゲン化物を母体と
して有する蛍光体は、Ｘ線、陰極線およびＵＶ線等によ
り励起されることにより、ＵＶ領域ないし青色領域にか
けて刺激された光を発する蛍光体として、さらに大型投
射管用として脚光を浴びている。Phosphors activated with Ta, Er, Tm, Ce, etc. and having rare earth oxide halides such as La, Gd, Lu, etc. as a matrix, are excited by X-rays, cathode rays, UV rays, etc. As a phosphor that emits light stimulated in a region or a blue region, it is in the spotlight for a large projection tube.
【０００６】例えば日本国特許公報昭６２−１８５８９
号にはツリウム(Thulium) 付活酸塩ランタン蛍光体（Ｌ
ａＯＣｌ：Ｔｍ）とこの蛍光体を、水ガラスと硝酸バリ
ウムの重量濃度比が２０ないし４０対１である沈降液を
用いて、陰極線管のパネル内面に沈降させることにより
ＬａＯＣｌ：Ｔｍ蛍光体沈降膜を形成することを通じ
て、投射型映像装置に用いられる青色発光スクリーン膜
を製造する方法が記載されている。For example, Japanese Patent Publication Sho 62-18589.
The issue is Thulium activated lanthanum phosphor (L
aOCl: Tm) and this phosphor are settled on the inner surface of the panel of the cathode ray tube by using a sedimentation liquid having a weight concentration ratio of water glass and barium nitrate of 20 to 40: 1 to form a LaOCl: Tm phosphor precipitation film. A method of manufacturing a blue light-emitting screen film used in a projection-type image device is described by forming a film.
【０００７】ところが、この様な方法で製造された青色
発光蛍光体は水分に不安定なので、スクリーン膜形成
時、蛍光特性に不好適な影響を与え、その初期発光効率
が低いという問題点を有する。However, since the blue light emitting phosphor manufactured by such a method is unstable to water, it has an unfavorable influence on the fluorescent characteristics when the screen film is formed, and its initial luminous efficiency is low. .
【０００８】[0008]
【発明が解決しようとする課題】本発明の目的は、前述
した問題点を鑑みて、全体的な蛍光体特性が優秀にな
り、特に電流−輝度飽和特性の向上された混合型青色発
光蛍光体を提供しようとすることである。SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to improve the phosphor characteristics as a whole, and particularly to improve the current-luminance saturation characteristics of a mixed blue-emitting phosphor. Is to provide.
【０００９】また、本発明の他の目的は、前述した混合
型青色発光蛍光体を使用することにより映像の色純度と
輝度を向上させた陰極線管を提供することである。Another object of the present invention is to provide a cathode ray tube having improved color purity and brightness of an image by using the above-mentioned mixed type blue light emitting phosphor.
【００１０】[0010]
【課題を解決するための手段】前述した目的を達成する
ために、本発明は、銀付活、アルミニウム共付活硫化亜
鉛蛍光体（ＺｎＳ：Ａｇ，Ａｌ）９５ないし７０重量％
と、ツリウム付活酸塩化ランタン蛍光体（ＬａＯＣｌ：
Ｔｍ）５ないし３０重量％とを混合して得られる青色発
光蛍光体を提供する。また、前述した目的を達成するた
めに、本発明は、銀付活、アルミニウム共付活硫化亜鉛
蛍光体（ＺｎＳ：Ａｇ，Ａｌ）９０ないし８０重量％
と、ツリウム付活酸塩化ランタン蛍光体（ＬａＯＣｌ：
Ｔｍ）１０ないし２０重量％を混合して得られる青色発
光蛍光体を提供する。また、本発明の他の目的を達成す
るために、本発明は、銀付活、アルミニウム共付活硫化
亜鉛蛍光体（ＺｎＳ：Ａｇ，Ａｌ）９５ないし７０重量
％と、ツリウム付活酸塩化ランタン蛍光体（ＬａＯＣ
ｌ：Ｔｍ）５ないし３０重量％とを混合して得られる青
色発光蛍光体を用いて製造される陰極線管を提供する。
さらに、前述した他の目的を達成するために、本発明
は、銀付活、アルミニウム共付活硫化亜鉛蛍光体（Ｚｎ
Ｓ：Ａｇ，Ａｌ）９０ないし８０重量％と、ツリウム付
活酸塩化ランタン蛍光体（ＬａＯＣｌ：Ｔｍ）１０ない
し２０重量％とを混合して得られる青色発光蛍光体を用
いた陰極線管を提供する。 In order to achieve the above object, the present invention provides a silver-activated, aluminum co-activated zinc sulfide phosphor (ZnS: Ag, Al) 95 to 70% by weight.
And lanthanum activated lanthanum phosphide phosphor (LaOCl:
Tm) 5 to 30% by weight is provided to provide a blue light emitting phosphor. In addition, in order to achieve the above-mentioned purpose
Therefore, the present invention is directed to silver activated and aluminum co-activated zinc sulfide.
Phosphor (ZnS: Ag, Al) 90 to 80% by weight
And lanthanum activated lanthanum phosphide phosphor (LaOCl:
Tm) blue color obtained by mixing 10 to 20% by weight
A photophosphor is provided. In order to achieve another object of the present invention, the present invention provides a silver-activated, aluminum co-activated zinc sulfide phosphor (ZnS: Ag, Al) 95 to 70 wt.
%, Lanthanum activated lanthanum phosphor with thulium (LaOC
The present invention provides a cathode ray tube manufactured by using a blue-emitting phosphor obtained by mixing 1: Tm) 5 to 30% by weight .
Furthermore, in order to achieve the above-mentioned other objects, the present invention
Is a zinc-activated, aluminum co-activated zinc sulfide phosphor (Zn
S: Ag, Al) 90 to 80% by weight, with thulium
Activated lanthanum phosphide phosphor (LaOCl: Tm) 10
A blue-emitting phosphor obtained by mixing 20% by weight with
The cathode ray tube which was used.
【００１１】[0011]
【作用】本発明の青色発光蛍光体は、単一蛍光体（Ｚｎ
Ｓ：Ａｇ，Ａｌ）を使用する場合より、輝度飽和特性が
約７ないし１１％向上され、かつこの蛍光体を用いて、
陰極線管を製造すれば映像の色純度と輝度が向上され
る。The blue light emitting phosphor of the present invention is a single phosphor (Zn
S: Ag, Al), the luminance saturation characteristic is improved by about 7 to 11%, and using this phosphor,
When a cathode ray tube is manufactured, color purity and brightness of an image are improved.
【００１２】[0012]
【実施例】以下、本発明による青色発光蛍光体の製造方
法を説明する。EXAMPLES A method for manufacturing a blue light emitting phosphor according to the present invention will be described below.
【００１３】まず、ＺｎＳ：Ａｇ，Ａｌ蛍光体を製造す
る。通常の方法により主原料ＺｎＳとＡｇＮＯ3 または
Ａｇ2 ＳＯ4 等の銀化合物と、共付活剤としてＡｌ
2 （ＳＯ4 ）・１８Ｈ2 ＯまたはＡｌ（ＮＯ3 ）3 ・９
Ｈ2 Ｏ等のアルミニウム化合物を混合し、ここに融剤と
してＮＨ4 Ｉ、ＫＩ、ＮａＩのうちいずれか一つを添加
して、十分に混合する。混合物を耐熱性のるつぼに充填
し、混合物の上部に炭素粉末を覆いだ後、蓋をして還元
性雰囲気下で２ないし３時間の間、９００ないし１００
０℃の温度で焼成する。内容物が冷めたら水洗いおよび
乾燥して、ＺｎＳ：Ａｇ，Ａｌ蛍光体を得る。First, a ZnS: Ag, Al phosphor is manufactured. By a conventional method, the main raw material ZnS and a silver compound such as AgNO 3 or Ag 2 SO 4 and Al as a co-activator are used.
2 (SO 4) · 18H 2 O or Al (NO 3) 3 · 9
An aluminum compound such as H 2 O is mixed, and one of NH 4 I, KI, and NaI is added as a flux to the mixture, and they are mixed sufficiently. The mixture was filled in a heat-resistant crucible, the top of the mixture was covered with carbon powder, and then the lid was covered with a lid under a reducing atmosphere for 2 to 3 hours to 900 to 100.
Bake at a temperature of 0 ° C. When the contents have cooled, they are washed with water and dried to obtain a ZnS: Ag, Al phosphor.
【００１４】次いで、ＬａＯＣｌ：Ｔｍ蛍光体は酸化ラ
ンタン（Ｌａ2 Ｏ3 ）、酸化ツリウム（Ｔｍ2 Ｏ3 ）お
よび塩化アンモニウム（ＮＨ4 Ｃｌ）を適量とって混合
する。得られる混合粉末を耐熱性るつぼに充填し、４０
０ないし４５０℃温度で、１ないし２時間焼成する。焼
成物を粉砕して、再び耐熱性容器に充填した後、弱還元
性雰囲気下で１．５ないし３時間の間１１００ないし１
２００℃温度で焼成する。内容物が冷めたら水洗いおよ
び乾燥して、ＬａＯＣｌ：Ｔｍ蛍光体を得る。Next, the LaOCl: Tm phosphor is mixed with lanthanum oxide (La 2 O 3 ), thulium oxide (Tm 2 O 3 ) and ammonium chloride (NH 4 Cl) in appropriate amounts. Fill the resulting powder mixture into a heat resistant crucible and
Baking at a temperature of 0 to 450 ° C. for 1 to 2 hours. After crushing the fired product and filling it again in a heat-resistant container, it is heated to 1100 to 1 for 1.5 to 3 hours in a weak reducing atmosphere.
Bake at a temperature of 200 ° C. When the contents have cooled, they are washed with water and dried to obtain LaOCl: Tm phosphor.
【００１５】この様に製造したＺｎＳ：Ａｇ，Ａｌ蛍光
体とＬａＯＣｌ：Ｔｍ蛍光体とを一定比率で混合して、
本発明の青色発光蛍光体を得る。The ZnS: Ag, Al phosphor thus produced and the LaOCl: Tm phosphor were mixed at a constant ratio,
The blue light emitting phosphor of the present invention is obtained.
【００１６】通常の方法により製造された蛍光体の用い
て蛍光体スラリを製造し、これを陰極線管のパネルの内
面に塗布して青色蛍光体パターンを製造する。各色パタ
ーンが形成されたスクリーン膜を含むバルブとヒータ
ー、ステム、ゲッタ、電極を含むマウントを封着させて
排気、エイジング、検査等の工程を行って、本発明の陰
極線管を製造する。A phosphor slurry is manufactured using a phosphor manufactured by a conventional method, and the phosphor slurry is applied to the inner surface of the panel of the cathode ray tube to manufacture a blue phosphor pattern. A cathode ray tube of the present invention is manufactured by sealing a valve including a screen film on which each color pattern is formed and a mount including a heater, a stem, a getter and an electrode, and performing steps such as exhausting, aging and inspection.
【００１７】以下、本発明で使用したＺｎＳ：Ａｇ，Ａ
ｌ蛍光体とＬａＯＣｌ：Ｔｍ蛍光体の製造方法を詳細に
説明する。Hereinafter, ZnS: Ag, A used in the present invention
The method for producing the l phosphor and the LaOCl: Tm phosphor will be described in detail.
【００１８】[0018]
【表１】 [Table 1]
【００１９】前記表１の原料を均一に混合した後、石英
るつぼに充填し、混合物の上部に炭素を添加した後、蓋
をする。Ｎ2 （９５％）＋Ｈ2 （５％）ガス雰囲気下で
２時間の間９５０℃温度で焼成する。焼成後水洗いおよ
び乾燥して、ＺｎＳ：Ａｇ，Ａｌ蛍光体を得る。After uniformly mixing the raw materials shown in Table 1, a quartz crucible was filled, carbon was added to the upper portion of the mixture, and then the lid was closed. Baking at 950 ° C. temperature for 2 hours under N 2 (95%) + H 2 (5%) gas atmosphere. After firing, the ZnS: Ag, Al phosphor is obtained by washing with water and drying.
【００２０】[0020]
【表２】 [Table 2]
【００２１】前記表２の原料を秤量し、ボールミルを用
いて十分に混合する。得られる混合粉末を石英るつぼに
充填した後４００℃温度で、２時間の間焼成する。焼成
物を再びボールミルを用いて粉砕した後、再び石英るつ
ぼに入れて、弱還元性雰囲気下（Ｎ2 （９５％）＋Ｈ2
（５％））で２時間の間１２００℃温度で焼成する。内
容物が冷めたら水洗いおよび乾燥して、ＬａＯＣｌ：Ｔ
ｍ蛍光体を得る。The raw materials shown in Table 2 are weighed and thoroughly mixed using a ball mill. After filling the obtained mixed powder in a quartz crucible, it is baked at a temperature of 400 ° C. for 2 hours. The fired product was pulverized again using a ball mill, and then placed in a quartz crucible again, under a weak reducing atmosphere (N 2 (95%) + H 2
(5%)) for 2 hours at 1200 ° C. When the contents have cooled, wash and dry with LaOCl: T
Obtain m phosphor.
【００２２】この様に製造したＺｎＳ：Ａｇ，Ａｌ蛍光
体とＬａＯＣｌ：Ｔｍ蛍光体を混合して、本発明の青色
発光蛍光体を製造する。混合比による各実施例および比
較例の電流−輝度飽和特性を表３に示した。The ZnS: Ag, Al phosphor prepared as described above and the LaOCl: Tm phosphor are mixed to prepare the blue light emitting phosphor of the present invention. Examples and ratios according to mixing ratio
Table 3 shows the current-luminance saturation characteristics of the comparative example.
【００２３】[0023]
【表３】 [Table 3]
【００２４】表３の結果を見れば、ＬａＯＣｌ：Ｔｍ蛍
光体の混合量が増加するにつれ、輝度飽和特性（γ）は
向上されるが、過量添加時、初期輝度差が低すぎるとい
う問題点がある。輝度飽和特性と初期輝度を考慮すると
き、一番好適なＬａＯＣｌ：Ｔｍの混合比は１０ないし
２０重量％である。From the results shown in Table 3, the brightness saturation characteristic (γ) is improved as the mixing amount of the LaOCl: Tm phosphor is increased, but there is a problem that the initial brightness difference is too low when an excessive amount is added. is there. Considering the luminance saturation characteristic and the initial luminance, the most preferable LaOCl: Tm mixing ratio is 10 to 20% by weight.
【００２５】図１は比較例、実施例２および４により製
造した本発明の青色発光蛍光体の電流による輝度飽和特
性変化を示すグラフである。図面からＬａＯＣｌ：Ｔｍ
の混合比による輝度飽和特性と初期輝度がさらに明らか
に分かる。FIG. 1 is a graph showing changes in the luminance saturation characteristics of the blue light emitting phosphors of the present invention manufactured by the comparative examples, Examples 2 and 4, depending on the current. From the drawing LaOCl: Tm
The brightness saturation characteristics and the initial brightness depending on the mixture ratio of are more clearly understood.
【００２６】[0026]
【発明の効果】以上述べたように、本発明の青色発光蛍
光体は単一蛍光体（ＺｎＳ：Ａｇ，Ａｌ）使用時より輝
度飽和特性が約７％ないし１１％向上されたのもで、特
に光電流密度下で特性が優秀な蛍光体と言える。As described above, the blue light emitting phosphor of the present invention has a brightness saturation characteristic improved by about 7% to 11% as compared with the case of using a single phosphor (ZnS: Ag, Al). It can be said that the phosphor has excellent characteristics under current density.
【００２７】また、本発明の青色発光蛍光体を用いて陰
極線管を製造すれば、映像の色純度と輝度が向上された
優秀な品質の陰極線管が得られる。Also, when a cathode ray tube is manufactured using the blue light emitting phosphor of the present invention, an excellent quality cathode ray tube having improved color purity and brightness of an image can be obtained.
【図１】 本発明により製造した青色発光蛍光体である
実施例２、４、および比較例の電流変化による輝度特性
変化を示すグラフである。 Is a blue-emitting phosphor prepared by the present invention; FIG
9 is a graph showing changes in luminance characteristics due to changes in current in Examples 2 and 4, and Comparative Example .
Claims (4)
光体（ＺｎＳ：Ａｇ，Ａｌ）９５ないし７０重量％と、
ツリウム付活酸塩化ランタン蛍光体（ＬａＯＣｌ：Ｔ
ｍ）５ないし３０重量％とを混合して得られる青色発光
蛍光体。1. A silver-activated, aluminum co-activated zinc sulfide phosphor (ZnS: Ag, Al) 95 to 70% by weight,
Thulium Activated Lanthanum Phosphate Phosphor (LaOCl: T
m) A blue-emitting phosphor obtained by mixing with 5 to 30% by weight .
光体（ＺｎＳ：Ａｇ，Ａｌ）９０ないし８０重量％と、
ツリウム付活酸塩化ランタン蛍光体（ＬａＯＣｌ：Ｔ
ｍ）１０ないし２０重量％を混合して得られる青色発光
蛍光体。2. A silver-activated, aluminum co-activated zinc sulfide firefly.
90 to 80% by weight of a light body (ZnS: Ag, Al),
Thulium Activated Lanthanum Phosphate Phosphor (LaOCl: T
m) A blue-emitting phosphor obtained by mixing 10 to 20% by weight .
光体（ＺｎＳ：Ａｇ，Ａｌ）９５ないし７０重量％と、
ツリウム付活酸塩化ランタン蛍光体（ＬａＯＣｌ：Ｔ
ｍ）５ないし３０重量％とを混合して得られる青色発光
蛍光体を用いた陰極線管。3. A silver-activated and aluminum co-activated zinc sulfide phosphor (ZnS: Ag, Al) 95 to 70% by weight,
Thulium Activated Lanthanum Phosphate Phosphor (LaOCl: T
m) A cathode ray tube using a blue-emitting phosphor obtained by mixing 5 to 30% by weight .
光体（ＺｎＳ：Ａｇ，Ａｌ）９０ないし８０重量％と、
ツリウム付活酸塩化ランタン蛍光体（ＬａＯＣｌ：Ｔ
ｍ）１０ないし２０重量％とを混合して得られる青色発
光蛍光体を用いた陰極線管。 4. Silver activated, aluminum co-activated zinc sulfide firefly
90 to 80% by weight of a light body (ZnS: Ag, Al),
Thulium Activated Lanthanum Phosphate Phosphor (LaOCl: T
m) blue emission obtained by mixing with 10 to 20% by weight
A cathode ray tube using a photophosphor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910011781A KR930006480B1 (en) | 1991-07-11 | 1991-07-11 | Crt |
| KR1991P11781 | 1991-07-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05117653A JPH05117653A (en) | 1993-05-14 |
| JPH0826308B2 true JPH0826308B2 (en) | 1996-03-13 |
Family
ID=19317098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4075007A Expired - Lifetime JPH0826308B2 (en) | 1991-07-11 | 1992-03-31 | Blue light emitting phosphor and cathode ray tube using the same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH0826308B2 (en) |
| KR (1) | KR930006480B1 (en) |
| DE (1) | DE4212671A1 (en) |
-
1991
- 1991-07-11 KR KR1019910011781A patent/KR930006480B1/en not_active IP Right Cessation
-
1992
- 1992-03-31 JP JP4075007A patent/JPH0826308B2/en not_active Expired - Lifetime
- 1992-04-15 DE DE4212671A patent/DE4212671A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE4212671A1 (en) | 1993-03-18 |
| JPH05117653A (en) | 1993-05-14 |
| KR930003205A (en) | 1993-02-24 |
| KR930006480B1 (en) | 1993-07-16 |
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