JPH0612982A - Fluorescent screen forming method for color cathode-ray tube - Google Patents
Fluorescent screen forming method for color cathode-ray tubeInfo
- Publication number
- JPH0612982A JPH0612982A JP4166488A JP16648892A JPH0612982A JP H0612982 A JPH0612982 A JP H0612982A JP 4166488 A JP4166488 A JP 4166488A JP 16648892 A JP16648892 A JP 16648892A JP H0612982 A JPH0612982 A JP H0612982A
- Authority
- JP
- Japan
- Prior art keywords
- color
- phosphor
- phosphor slurry
- forming
- slurry
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、カラーブラウン管の
蛍光面形成方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent screen forming method for a color cathode ray tube.
【０００２】[0002]
【従来の技術】一般にカラーブラウン管は、図１に示す
ように、パネル1 およびこのパネル1に一体に接合され
たファンネル2 からなる外囲器を有し、そのパネル1 の
内面に、図２（ａ）および（ｂ）に示すように、青、
緑、赤に発光するドット状あるいはストライプ状の３色
蛍光体層3B，3G，3Rからなる蛍光面4 が形成され、この
蛍光面4 に対向して、その内側に多数の開孔の形成され
たシャドウマスク5 が配置されている。一方、ファンネ
ル2 のネック6 内に、３電子ビームを放出する電子銃7
が配設されている。そして、この電子銃7 から放出され
る３電子ビームをファンネル2 の外側に装着された偏向
ヨーク8 の発生する磁界により偏向して、上記蛍光面4
を水平、垂直走査することにより、カラー画像を表示す
る構造に形成されている。2. Description of the Related Art Generally, as shown in FIG. 1, a color cathode-ray tube has an envelope composed of a panel 1 and a funnel 2 integrally joined to the panel 1. blue, as shown in a) and (b),
A phosphor screen 4 consisting of three-color phosphor layers 3B, 3G, 3R that emits green and red dots or stripes is formed, and a large number of apertures are formed inside the phosphor screen 4 facing the phosphor screen 4. Shadow mask 5 is placed. On the other hand, in the neck 6 of the funnel 2, an electron gun 7 that emits 3 electron beams
Is provided. Then, the three electron beams emitted from the electron gun 7 are deflected by the magnetic field generated by the deflection yoke 8 mounted on the outside of the funnel 2, and the fluorescent screen 4
Are horizontally and vertically scanned to form a structure for displaying a color image.
【０００３】従来より上記蛍光面4 は、写真印刷法によ
り形成されている。すなわち、図３（ａ）に示すよう
に、まずパネル1 の内面に、たとえば青蛍光体、感光性
樹脂であるポリビニルアルコール（ＰＶＡ）および光架
橋剤である重クロム酸アンモニウム（ＡＤＣ）などの重
クロム酸塩（ＳＤＣ）を主成分とする蛍光体スラリを塗
布し乾燥して、蛍光体スラリ被膜10を形成する。つぎに
同（ｂ）に示すように、上記蛍光体スラリ被膜10の形成
されたパネル1 にシャドウマスク5 を装着し、このシャ
ドウマスク5 を介して上記蛍光体スラリ被膜10を、超高
圧水銀ランプなど光源12から放射される紫外線などの短
波長光の豊富に含む光により露光して、ＰＶＡの光還元
反応を促進し、蛍光体スラリ被膜10にシャドウマスク5
の開孔11に対応するパターンを焼付ける。その後、この
シャドウマスク5 の開孔11に対応するパターンを焼付け
られた蛍光体スラリ被膜10を現像して、同（ｃ）に示す
ように、青蛍光体層3Bを形成する。そして、この青蛍光
体層3Bを緑、赤蛍光体について繰返すことにより、同
（ｄ）に示すように、３色蛍光体層3B，3G，3Rを形成す
ることにより形成されている。Conventionally, the fluorescent screen 4 is formed by a photographic printing method. That is, as shown in FIG. 3 (a), first, on the inner surface of the panel 1, for example, a blue phosphor, a photosensitive resin such as polyvinyl alcohol (PVA) and a photo-crosslinking agent such as ammonium dichromate (ADC), are added. A phosphor slurry mainly containing chromate (SDC) is applied and dried to form a phosphor slurry coating 10. Next, as shown in (b), a shadow mask 5 is attached to the panel 1 on which the phosphor slurry coating 10 is formed, and the phosphor slurry coating 10 is attached via the shadow mask 5 to the ultra-high pressure mercury lamp. And the like, and is exposed to light containing abundant short-wavelength light such as ultraviolet light emitted from the light source 12 to accelerate the photoreduction reaction of PVA, and the shadow mask 5 on the phosphor slurry coating 10
The pattern corresponding to the opening 11 is baked. Thereafter, the phosphor slurry coating 10 having a pattern corresponding to the openings 11 of the shadow mask 5 baked is developed to form a blue phosphor layer 3B as shown in FIG. Then, the blue phosphor layer 3B is repeated for green and red phosphors to form three-color phosphor layers 3B, 3G, 3R as shown in FIG.
【０００４】上記ＰＶＡの光還元反応によるパターンの
焼付けは、ＲＰ′をビニル基として示した下記化１、化
２による６価のＣr が３価のＣr に還元されることによ
り進行するＰＶＡの硬化反応によりおこなわれる。The baking of the pattern by the photoreduction reaction of PVA proceeds by the reduction of hexavalent Cr according to the following chemical formulas 1 and 2 in which RP 'is a vinyl group, to the curing of PVA. It is carried out by the reaction.
【０００５】[0005]
【化１】 [Chemical 1]
【化２】 この光還元反応を促進する蛍光体スラリ中のＰＶＡとＳ
ＤＣとの混合比率は、従来蛍光体の種類に関係なく、最
初に塗布する１色目の蛍光体スラリ、順次塗布する２色
目の蛍光体スラリ、３色目の蛍光体スラリに関係なく一
定であり、ＰＶＡ１重量部に対して、ＳＤＣ０．０２〜
０．０３重量部の割合いとなっている。[Chemical 2] PVA and S in the phosphor slurry that promotes this photoreduction reaction
The mixing ratio with DC is constant regardless of the type of conventional phosphor, regardless of the first-color phosphor slurry applied first, the second-color phosphor slurry applied sequentially, and the third-color phosphor slurry. SDC 0.02 to 1 part by weight of PVA
The ratio is 0.03 part by weight.
【０００６】[0006]
【発明が解決しようとする課題】上記のように、従来よ
りカラーブラウン管の蛍光面は、写真印刷法により形成
され、蛍光体、感光性樹脂であるＰＶＡおよび光架橋剤
であるＳＤＣを主成分とする蛍光体スラリの塗布、露
光、現像を３色蛍光体について繰返すことにより形成さ
れ、その蛍光体スラリ中のＰＶＡとＳＤＣとの混合比率
は、蛍光体の種類に関係なく、１色目の蛍光体スラリ、
２色目の蛍光体スラリ、３色目の蛍光体スラリに関係な
く一定となっている。As described above, the fluorescent screen of the color CRT has been conventionally formed by the photo printing method, and contains phosphor, PVA as a photosensitive resin and SDC as a photo-crosslinking agent as main components. It is formed by repeating the coating, exposure, and development of the phosphor slurry for the three-color phosphor, and the mixing ratio of PVA and SDC in the phosphor slurry is the phosphor of the first color regardless of the type of phosphor. Slurry,
It is constant regardless of the second-color phosphor slurry and the third-color phosphor slurry.
【０００７】しかしこのような蛍光体スラリを用いて３
色蛍光体層を形成すると、たとえば１色目の蛍光体スラ
リ塗布後の露光における光還元反応が十分でなく、現像
後、この１色目の蛍光体層中に未反応の６価のＣr が残
存すると、この未反応の６価のＣr が２色目、３色目の
蛍光体スラリの被膜と反応し、１色目の蛍光体層中に２
色目、３色目の蛍光体が混入する。また２色目の蛍光体
スラリ塗布後の露光における光還元反応が十分でなく、
現像後、この２色目の蛍光体層中に未反応の６価のＣr
が残存すると、この２色目の蛍光体層中にさらに３色目
の蛍光体が混入する。その結果、色純度の劣化がおこ
り、ホワイトユニホーミティが悪くなるという問題があ
る。However, when such a phosphor slurry is used,
When the color phosphor layer is formed, for example, the photoreduction reaction in exposure after coating the phosphor slurry of the first color is not sufficient, and unreacted hexavalent Cr remains in the phosphor layer of the first color after development. , The unreacted hexavalent Cr reacts with the coating of the phosphor slurry of the second color and the third color, and 2 in the phosphor layer of the first color.
The phosphors of the third and third colors are mixed. In addition, the photoreduction reaction in exposure after coating the second color phosphor slurry is not sufficient,
After development, unreacted hexavalent Cr in the second color phosphor layer
Remains, the phosphor of the third color is further mixed in the phosphor layer of the second color. As a result, there is a problem that the color purity is deteriorated and the white uniformity is deteriorated.
【０００８】この発明は、上記問題点を解決するために
なされたものであり、未反応の６価のＣr が残存するた
めに生ずる他色蛍光体の混入を防止して、色純度の劣化
がおこさない蛍光面形成方法を得ることを目的とする。The present invention has been made in order to solve the above-mentioned problems, and prevents the mixture of phosphors of other colors caused by the remaining unreacted hexavalent Cr, thereby deteriorating the color purity. The purpose is to obtain a phosphor screen forming method that does not occur.
【０００９】[0009]
【課題を解決するための手段】パネルの内面に蛍光体、
感光性樹脂および光架橋剤を主成分とする蛍光体スラリ
を塗布し乾燥して蛍光体スラリ被膜を形成する蛍光体ス
ラリ塗布工程、その蛍光体スラリ被膜をシャドウマスク
を介して短波長光により露光し、光還元反応によりシャ
ドウマスクの開孔に対応するパターンを焼付ける露光工
程、そのシャドウマスクの開孔に対応するパターンの焼
付けられた蛍光体スラリ被膜を現像して蛍光体層を形成
する現像工程を有し、その蛍光体スラリ塗布工程、露光
工程および現像工程を発光色の異なる３色蛍光体につい
て１色目、２色目、３色目と順次繰返すことにより３色
蛍光体層を形成するカラーブラウン管の蛍光面形成方法
において、３色蛍光体の蛍光体スラリ被膜の光還元反応
による感光度を、１色目＞２色目≧３色目、とした。[Means for Solving the Problems] The phosphor on the inner surface of the panel,
Phosphor slurry coating process of applying phosphor slurry mainly composed of photosensitive resin and photo-crosslinking agent and drying to form phosphor slurry coating, exposing phosphor slurry coating with short wavelength light through shadow mask Then, an exposure step of baking a pattern corresponding to the openings of the shadow mask by a photoreduction reaction, and a development for forming a phosphor layer by developing the baked phosphor slurry coating of the pattern corresponding to the openings of the shadow mask A color cathode-ray tube that has a process, and forms a three-color phosphor layer by sequentially repeating the phosphor slurry coating process, exposure process, and development process for the three-color phosphors with different emission colors, the first color, the second color, and the third color. In the method for forming a phosphor screen, the photosensitivity of the phosphor slurry coating of the three-color phosphor on the basis of the photoreduction reaction is set as the first color> the second color ≧ the third color.
【００１０】[0010]
【作用】上記のように、３色蛍光体の蛍光体スラリ被膜
の光還元反応による感光度を、１色目＞２色目≧３色目
とすると、１色目の蛍光体スラリを塗布、露光、現像し
て得られる１色目の蛍光体層中の未反応の６価のＣr の
残存をなくすことができ、同様に２色目の蛍光体層中の
未反応の６価のＣr の残存をなくすことができ、１色
目、２色目の蛍光体層に対して、その後に塗布される他
色蛍光体の混入を避けることができる。As described above, when the photosensitivity of the phosphor slurry coating of the three-color phosphor is caused by the photoreduction reaction, the first color> the second color> the third color, the first-color phosphor slurry is applied, exposed, and developed. It is possible to eliminate the unreacted 6-valent Cr remaining in the first-color phosphor layer obtained in the same manner, as well as the unreacted 6-valent Cr remaining in the second-color phosphor layer. It is possible to avoid mixing of the phosphors of other colors to be applied subsequently to the phosphor layers of the first and second colors.
【００１１】[0011]
【実施例】以下、図面を参照してこの発明を実施例に基
づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described based on embodiments with reference to the drawings.
【００１２】この発明におけるカラーブラウン管の蛍光
面形成の各工程は、従来の蛍光面形成方法とほぼ同じで
あるので、図３を参照して説明する。The steps of forming the fluorescent screen of the color CRT according to the present invention are almost the same as those of the conventional fluorescent screen forming method, and will be described with reference to FIG.
【００１３】まずパネル1 の内面に、たとえば青蛍光
体、ＰＶＡおよびＡＤＣを主成分とする蛍光体スラリを
塗布し乾燥して、１色目の蛍光体スラリ被膜10を形成す
る。つぎに同（ｂ）に示すように、その蛍光体スラリ被
膜10の形成されたパネル1 にシャドウマスク5 を装着
し、このシャドウマスク5 を介して上記蛍光体スラリ被
膜10を、超高圧水銀ランプなどから放射される紫外線な
どの短波長光の豊富に含む光源から放射される光により
露光して、ＰＶＡの光還元反応を促進し、蛍光体スラリ
被膜10にシャドウマスク5 の開孔11に対応するパターン
を焼付ける。その後、このシャドウマスク5 の開孔11に
対応するパターンを焼付けられた蛍光体スラリ被膜10を
現像して、同（ｃ）に示すように、１色目の青蛍光体層
3Bを形成する。First, a phosphor slurry containing, for example, a blue phosphor, PVA and ADC as a main component is applied to the inner surface of the panel 1 and dried to form a phosphor slurry film 10 for the first color. Next, as shown in (b), a shadow mask 5 is attached to the panel 1 on which the phosphor slurry coating 10 is formed, and the phosphor slurry coating 10 is attached via the shadow mask 5 to the ultra-high pressure mercury lamp. It is exposed to light emitted from a light source that contains abundant short-wavelength light such as ultraviolet rays emitted from, etc., to promote the photoreduction reaction of PVA, and to correspond to the opening 11 of the shadow mask 5 in the phosphor slurry coating 10. Bake the pattern you want. Thereafter, the phosphor slurry coating 10 having a pattern corresponding to the openings 11 of the shadow mask 5 baked is developed, and as shown in FIG.
Form 3B.
【００１４】つぎに、上記青蛍光体層3Bの形成工程をた
とえば緑、赤蛍光体の順に繰返すことにより、同（ｄ）
に示すように、２色目の緑蛍光体層3G、３色目の赤蛍光
体層3Rを形成する。Next, the step of forming the blue phosphor layer 3B is repeated in the order of, for example, the green phosphor and the red phosphor.
As shown in, the second color green phosphor layer 3G and the third color red phosphor layer 3R are formed.
【００１５】ところで、この例の蛍光面形成方法におい
ては、１色目の青蛍光体層3Bの蛍光体スラリに重合度３
４００〜３６００のＰＶＡを用い、２色目、３色目の緑
蛍光体層3G、赤蛍光体層3Rの蛍光体スラリに重合度２０
００〜２４００のＰＶＡを用いた。By the way, in the phosphor screen forming method of this example, the degree of polymerization of 3 is added to the phosphor slurry of the blue phosphor layer 3B of the first color.
Using 400 to 3600 PVA, the degree of polymerization is 20 in the phosphor slurry of the second and third green phosphor layers 3G and red phosphor layer 3R.
00-2400 PVA was used.
【００１６】このように１色目の蛍光体層3Bを形成する
に当り、重合度の高いＰＶＡからなる蛍光体スラリを用
いて蛍光体スラリ被膜を形成すると、２色目、３色目の
緑蛍光体層3G、赤蛍光体層3Rを形成する重合度の低いＰ
ＶＡを用いて形成された蛍光体スラリ被膜に対して、光
還元反応による感光度を３０〜５０％程度高めることが
でき、その分、ＡＤＣの添加量を減らすことができる。
それにより、蛍光体スラリ被膜中の６価のＣr を露光に
よりほぼ完全に３価のＣr に還元することができ、２色
目、３色目の蛍光体スラリ被膜との結合をなくし、１色
目の蛍光体層3Bに対する２色目、３色目の蛍光体の混入
を防止することができる。In forming the phosphor layer 3B of the first color in this way, when the phosphor slurry coating is formed by using the phosphor slurry made of PVA having a high degree of polymerization, the green phosphor layers of the second and third colors are formed. 3G, P with low degree of polymerization forming the red phosphor layer 3R
The photosensitivity by the photoreduction reaction can be increased by about 30 to 50% with respect to the phosphor slurry film formed by using VA, and the amount of ADC added can be correspondingly reduced.
As a result, the hexavalent Cr in the phosphor slurry coating can be almost completely reduced to trivalent Cr by the exposure, and the bond with the phosphor slurry coatings of the second and third colors can be eliminated and the fluorescence of the first color can be eliminated. It is possible to prevent the second and third color phosphors from mixing into the body layer 3B.
【００１７】なお、上記実施例では、１色目、２色目、
３色目の蛍光体スラリ被膜の光還元反応による感光度
を、 １色目＞２色目＝３色目 としたが、１色目の蛍光体スラリ被膜の形成に重合度３
４００〜３６００のＰＶＡを用い、２色目の蛍光体スラ
リ被膜の形成に重合度３４００〜３６００のＰＶＡと重
合度２０００〜２４００のＰＶＡとを混合したＰＶＡを
用い、３色目の蛍光体スラリ被膜の形成に重合度２００
０〜２４００のＰＶＡを用いて、１色目、２色目、３色
目の蛍光体スラリ被膜の光還元反応による感光度を、 １色目＞２色目＞３色目 とすると、１色目の蛍光体層に対する２色目、３色目の
蛍光体の混入を防止することができるばかりでなく、２
色目の蛍光体層に対する３色目の蛍光体の混入も有効に
防止することができ、より良好な結果が得られる。In the above embodiment, the first color, the second color,
The photosensitivity of the third color phosphor slurry film due to the photoreduction reaction was set as 1st color> 2nd color = 3rd color, but the degree of polymerization was 3 when forming the 1st color phosphor slurry film.
Formation of the phosphor slurry film of the third color by using PVA of 400 to 3600 and PVA in which the PVA of the polymerization degree of 3400 to 3600 and the PVA of the polymerization degree of 2000 to 2400 are mixed to form the phosphor slurry film of the second color With a degree of polymerization of 200
Using PVA of 0 to 2400, the photosensitivity of the phosphor slurry coatings of the first, second and third colors is set to be 1st>2nd> 3rd. Not only is it possible to prevent phosphors of the third and third colors from being mixed, but
Mixing of the phosphor of the third color into the phosphor layer of the color can be effectively prevented, and a better result can be obtained.
【００１８】なお、この発明は、上記実施例に限定され
るものではなく、３色蛍光体層の隙間に光吸収層をもつ
蛍光面の形成にも適用可能である。The present invention is not limited to the above embodiment, but can be applied to the formation of a phosphor screen having a light absorption layer in the gap between the three-color phosphor layers.
【００１９】[0019]
【発明の効果】パネルの内面に蛍光体、感光性樹脂およ
び光架橋剤を主成分とする蛍光体スラリを塗布し乾燥し
て蛍光体スラリ被膜を形成し、その蛍光体スラリ被膜を
シャドウマスクを介して短波長光により露光し、光還元
反応によりシャドウマスクの開孔に対応するパターンを
焼付け、その焼付けられた蛍光体スラリ被膜を現像して
蛍光体層を形成し、この蛍光体スラリの塗布、露光、現
像を発光色の異なる３色蛍光体について１色目、２色
目、３色目と順次繰返すことにより３色蛍光体層を形成
するカラーブラウン管の蛍光面形成方法において、３色
蛍光体の蛍光体スラリ被膜の光還元反応による感光度
を、 １色目＞２色目≧３色目 とすると、１色目の蛍光体スラリを塗布、露光、現像し
て得られる１色目の蛍光体層中の未反応の６価のＣr の
残存をなくすことができ、また２色目の蛍光体層中の未
反応の６価のＣr の残存をなくすことができ、１色目、
２色目の蛍光体層に対して、その後に塗布される他色蛍
光体の混入を避けることができ、色純度の良好な蛍光面
を形成することができる。EFFECTS OF THE INVENTION A phosphor slurry containing phosphor, a photosensitive resin and a photo-crosslinking agent as a main component is applied to the inner surface of a panel and dried to form a phosphor slurry coating, and the phosphor slurry coating is used as a shadow mask. Through a short wavelength light, a pattern corresponding to the aperture of the shadow mask is baked by a photoreduction reaction, the baked phosphor slurry coating is developed to form a phosphor layer, and this phosphor slurry is applied. In the method for forming a phosphor screen of a color cathode-ray tube, a phosphor screen of a three-color phosphor is formed by sequentially repeating exposure, development and first-color, second-color, and third-color of three-color phosphors having different emission colors. Assuming that the photosensitivity of the body slurry film due to the photoreduction reaction is 1st color> 2nd color ≧ 3rd color, the unreacted phosphor layer of the 1st color obtained by applying, exposing and developing the phosphor slurry of the 1st color Hexavalent It is possible to eliminate residual of Cr, also can be eliminated residual hexavalent Cr unreacted in the phosphor layer of the second color, first color,
The phosphor layer of the second color can be prevented from being mixed with another color phosphor to be applied later, and a phosphor screen with good color purity can be formed.
【図１】カラーブラウン管全体の構成を示す図である。FIG. 1 is a diagram showing a configuration of an entire color CRT.
【図２】図２（ａ）および（ｂ）はそれぞれその蛍光面
の構成を示す図である。2 (a) and 2 (b) are diagrams showing a structure of a phosphor screen thereof. FIG.
【図３】図３（ａ）乃至（ｄ）はそれぞれその蛍光面の
形成方法を説明するための図である。FIG. 3A to FIG. 3D are views for explaining a method of forming the phosphor screen, respectively.
1 …パネル 3B，3G，3R…３色蛍光体層 5 …シャドウマスク 10…蛍光体スラリ被膜 11…開孔 12…光源 1 ... Panel 3B, 3G, 3R ... Three-color phosphor layer 5 ... Shadow mask 10 ... Phosphor slurry coating 11 ... Opening hole 12 ... Light source
Claims (1)
び光架橋剤を主成分とする蛍光体スラリを塗布し乾燥し
て蛍光体スラリ被膜を形成する蛍光体スラリ塗布工程、
上記蛍光体スラリ被膜をシャドウマスクを介して短波長
光により露光し、光還元反応によりシャドウマスクの開
孔に対応するパターンを焼付ける露光工程、上記シャド
ウマスクの開孔に対応するパターンの焼付けられた蛍光
体スラリ被膜を現像して蛍光体層を形成する現像工程を
有し、上記蛍光体スラリ塗布工程、露光工程および現像
工程を発光色の異なる３色蛍光体について１色目、２色
目、３色目と順次繰返すことにより３色蛍光体層を形成
するカラーブラウン管の蛍光面形成方法において、 上記３色蛍光体の蛍光体スラリ被膜の光還元反応による
感光度を、 １色目＞２色目≧３色目 としたことを特徴とするカラーブラウン管の蛍光面形成
方法。1. A phosphor slurry applying step of forming a phosphor slurry coating by applying a phosphor slurry containing a phosphor, a photosensitive resin and a photo-crosslinking agent as a main component on the inner surface of a panel and drying the slurry.
An exposure step in which the phosphor slurry coating is exposed to short-wavelength light through a shadow mask and a pattern corresponding to the openings of the shadow mask is baked by a photoreduction reaction, and a pattern corresponding to the openings of the shadow mask is baked. And a developing step of forming a phosphor layer by developing the phosphor slurry coating film, wherein the phosphor slurry applying step, the exposing step and the developing step are performed for the first color, the second color and the third color for the three color phosphors having different emission colors. In the method for forming a phosphor screen of a color cathode-ray tube in which a three-color phosphor layer is sequentially formed by repeating the above-mentioned color, the photosensitivity of the phosphor slurry coating of the above-mentioned three-color phosphor by the photoreduction reaction is determined as follows: And a method for forming a fluorescent screen of a color cathode ray tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4166488A JPH0612982A (en) | 1992-06-25 | 1992-06-25 | Fluorescent screen forming method for color cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4166488A JPH0612982A (en) | 1992-06-25 | 1992-06-25 | Fluorescent screen forming method for color cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0612982A true JPH0612982A (en) | 1994-01-21 |
Family
ID=15832319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4166488A Pending JPH0612982A (en) | 1992-06-25 | 1992-06-25 | Fluorescent screen forming method for color cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018101013A (en) * | 2016-12-19 | 2018-06-28 | 富士フイルム株式会社 | Wavelength conversion film and backlight unit |
-
1992
- 1992-06-25 JP JP4166488A patent/JPH0612982A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018101013A (en) * | 2016-12-19 | 2018-06-28 | 富士フイルム株式会社 | Wavelength conversion film and backlight unit |
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