JPH0378946A - Antiglare cathode-ray tube - Google Patents
Antiglare cathode-ray tubeInfo
- Publication number
- JPH0378946A JPH0378946A JP21487689A JP21487689A JPH0378946A JP H0378946 A JPH0378946 A JP H0378946A JP 21487689 A JP21487689 A JP 21487689A JP 21487689 A JP21487689 A JP 21487689A JP H0378946 A JPH0378946 A JP H0378946A
- Authority
- JP
- Japan
- Prior art keywords
- film
- antiglare
- glare
- face plate
- ray tube
- 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
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 239000010419 fine particle Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 3
- 229910011255 B2O3 Inorganic materials 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001635 magnesium fluoride Inorganic materials 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はブラウン管に係り、特に、優れた防眩特性を有
する防眩性ブラウン管に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cathode ray tube, and more particularly to an antiglare cathode ray tube having excellent antiglare properties.
ブラウン管はフェースプレート表面が光沢状態となって
おり、そのままの状態では、外来光を反射しやすく、フ
ェースプレート面に表示される画像が読み取り難いとい
う問題がある。このような問題を改善する手段として、
実公昭筒５０−２６２７７号、特開昭筒５９−１６７９
４３号などに示されているように、フェースプレート表
面にエチルシリケートのアルコール溶液をスプレーコー
ティングし、反射防止膜を形成して外来光を拡散反射さ
せたブラウン管が提案されている。The face plate surface of a cathode ray tube is glossy, and in that state, there is a problem in that it tends to reflect external light and makes it difficult to read images displayed on the face plate surface. As a means to improve such problems,
Jikko Shotsutsu No. 50-26277, JP-A Shotsutsu No. 59-1679
43, a cathode ray tube has been proposed in which the face plate surface is spray-coated with an alcohol solution of ethyl silicate to form an antireflection film to diffusely reflect external light.
また、近年、防爆形陰極線管の普及に伴い、テレビジョ
ン受像機またはデイスプレィ装置の前面保護ガラスが不
要となり、陰極線管の前面部分が直接外部に露出するよ
うになった。このため、人が直接陰極線管の前面部分（
フェースプレート）に触れる場合が生じ、電源スィッチ
の点滅の際などに静電誘導によってフェースプレート表
面に帯電した高電圧の静電気によって、人が大きな衝撃
を受ける恐れもあった。さらにまた、フェースプレート
が静電気によって大気中の塵埃を吸着し。Furthermore, in recent years, with the spread of explosion-proof cathode ray tubes, the front protective glass of television receivers or display devices has become unnecessary, and the front portion of the cathode ray tube has come to be directly exposed to the outside. For this reason, people cannot directly touch the front part of the cathode ray tube (
There was a risk that people could receive a large shock from the high-voltage static electricity that was charged on the faceplate surface due to electrostatic induction when the power switch was turned on and off. Furthermore, the face plate attracts dust from the atmosphere due to static electricity.
これらが堆積して、フェースプレート面が汚れ、画像を
見難くするという問題も生じていた。このような静電誘
導によって生ずる帯電を防止する方法としては、フェー
スプレート表面に透明導電被膜を形成して、これを接地
する方法がある。本発明出願人等は、先に、反射防止性
能と帯電防止性能とを兼ね備えたブラウン管を提案して
いる。There was also a problem in that these accumulated and stained the face plate surface, making the image difficult to see. As a method for preventing charging caused by such electrostatic induction, there is a method of forming a transparent conductive film on the surface of the face plate and grounding the film. The applicant of the present invention has previously proposed a cathode ray tube that has both antireflection performance and antistatic performance.
さらに、近年、表示装置の画像を高精細化する方向への
移行が進んでおり、高精細度テレビジョン（ＨＤＴＶ）
などの開発が進められている状況にあって、解像度の高
いブラウン管の要求が強まってきている。Furthermore, in recent years, there has been a shift toward higher definition images on display devices, and high-definition television (HDTV)
As developments such as these are progressing, the demand for high-resolution cathode ray tubes is increasing.
以上のような背景から、反射防止性能、すなわち防眩性
能、に優れ、かつ、解像度、強度、膜品質にも優れ、さ
らに、帯電防止機能をも有するブラウン管を開発する努
力がなされているわけであるが、上記従来技術の中、実
公昭筒５０−２６２７７号、特開昭筒５９−１６７９４
号に開示されているブラウン管は、防眩効果、膜強度、
膜品質的には優れているが、防眩効果を得るために、フ
ェースプレート表面にエチルシリケートのアルコール溶
液をスプレー被覆し、表面に凹凸を形成することによっ
て拡散反射効果を得るという方法をとっているため、該
凹凸による画像のゆがみや拡散反射による解像度の低下
が生じる恐れがあるという問題があった。Against this background, efforts are being made to develop cathode ray tubes that have excellent anti-reflection performance, that is, anti-glare performance, as well as excellent resolution, strength, and film quality, and also have antistatic functions. However, among the above-mentioned conventional techniques, Jikko Shotsutsu No. 50-26277 and JP-A Shotsutsu No. 59-16794
The cathode ray tube disclosed in the issue has an anti-glare effect, film strength,
Although the film quality is excellent, in order to obtain an anti-glare effect, we spray coated the face plate surface with an alcohol solution of ethyl silicate and created unevenness on the surface to obtain a diffuse reflection effect. Therefore, there is a problem that image distortion due to the unevenness and resolution reduction due to diffuse reflection may occur.
また、防眩性能とともに帯電防止性能をも有するもので
は、帯電防止性能には優れているが、防眩性付与のため
にスプレー被覆したエチルシリケート膜は、上記と同様
の理由により、解像度が低下しやすいきらいがあった。In addition, those that have both anti-glare and anti-static properties have excellent anti-static properties, but ethyl silicate films that are spray-coated to provide anti-glare properties have lower resolution for the same reason as above. I had a tendency to dislike it.
本発明の目的は、上記従来技術の有していた課題を解消
して、優れた防眩特性を有し、しかも、十分満足な帯電
防止性能を有する防眩性ブラウン管を提供することにあ
る。SUMMARY OF THE INVENTION An object of the present invention is to provide an anti-glare cathode ray tube having excellent anti-glare properties and sufficiently satisfactory antistatic performance by solving the problems of the prior art described above.
上記目的は、エチルシリケートのアルコール溶液に２粒
径１ｏｎｍ〜５ｏＯｎｍの範囲のＳ ｉ Ｏ，、Ｍ２Ｏ
３、ＭｇＦ２、Ｂ２Ｏ３、ＺｒＯ２、ＴｉＯ２などの微
粒子を０．１〜５．０重量％の範囲で添加し、さらに分
散剤、乾燥調節剤、加水分解触媒（水あるいは酸）、そ
の他の溶剤を適宜添加してなる混合液をフェースプレー
ト面にスプレー塗布して防眩膜を形成すること、および
、帯電防止性能を付与するためには、上記防眩膜形成の
前に、フェースプレート表面に、予め導電性被覆を設け
ておくこと、によって達成することができる。The above purpose is to add SiO, M2O with a particle size ranging from 1 onm to 5oOnm to an alcoholic solution of ethyl silicate.
3. Add fine particles such as MgF2, B2O3, ZrO2, TiO2 in a range of 0.1 to 5.0% by weight, and further add a dispersant, drying regulator, hydrolysis catalyst (water or acid), and other solvents as appropriate. In order to form an anti-glare film by spraying the mixed solution obtained by adding the above-mentioned additives onto the face plate surface, and to impart antistatic performance, it is necessary to spray the mixed solution on the face plate surface in advance before forming the above-mentioned anti-glare film. This can be achieved by providing a conductive coating.
なお、上記導電性膜はシート抵抗がＩ Ｘ １０’〜Ｉ
Ｘ １０１１Ω／口の範囲に入るものであればいかな
る方法によるものでも差支えないが、本願発明者等の検
討結果では、ＳｎＯ２、ｓｂ、ｏ３、Ｉ ｎｚｏ３の少
なくとも１種以上を含むものであることが望ましい。Note that the conductive film has a sheet resistance of I x 10' to I
Any method may be used as long as it falls within the range of X 1011 Ω/mouth, but according to the study results of the inventors of the present application, it is desirable to use a method that contains at least one of SnO2, sb, o3, and Inzo3.
第１図は上記のようにして得られた防眩膜の概略の構成
を示す模式図で、フェースプレート４上に形成された防
眩膜１が、エチルシリケートの分解によって得られるＳ
ｉｎ、膜２中に微粒子３が分散して含まれている構成か
らなることを示す。FIG. 1 is a schematic diagram showing the general structure of the anti-glare film obtained as described above, in which the anti-glare film 1 formed on the face plate 4 is made of S
In, this indicates that the film 2 has a structure in which fine particles 3 are dispersed and contained in the film 2.
このような構成の場合、膜１の反射率Ｒａは次式によっ
て与えられる。In the case of such a configuration, the reflectance Ra of the film 1 is given by the following equation.
４ ｎｏｎｔｎｚｎ８
Ｒ，＝１−（。、ｎｓ＋ｎｏｒｈ）・−（。、・−１勺
（ｎｇ” ｎ、・）８ゎ・３．７□ここで、ｎ（１＋
空気の屈折率
ｎ工：防眩膜の屈折率（空気側）
ｎ２：防眩膜の屈折率（８１０２側）
ｎＢ：５ｉｏｚの屈折率
ｄａ：屈折率連続変化層の厚さ
δａ：２π／λ（ｎｉ＋ｎｚ）ｄａ
いま、Ｈｏ＝ｌ、ｏｏ、ｎ□＝１．１０、ｎ２＝１．３
８、ｎｇ＝１．４７、ｄａ＝ ７５ ｎ ｍ、 λ＝５
５０ｎｍとして上式を計算すると、Ｒａ ＝０．１３％
という値が得られる。4 nontnzn8 R,=1-(.,ns+norh)・-(.,・-1勺(ng”n,・)8ゎ・3.7□Here, n(1+
Refractive index of air n: refractive index of anti-glare film (air side) n2: refractive index of anti-glare film (8102 side) nB: refractive index of 5ioz da: thickness of continuously variable refractive index layer δa: 2π/λ (ni+nz)da Now, Ho=l, oo, n□=1.10, n2=1.3
8, ng=1.47, da=75 nm, λ=5
When calculating the above formula assuming 50 nm, Ra = 0.13%
This value is obtained.
上記のようにして得られる防眩膜は、膜の構成自体が以
上述べたような反射防止特性を示すため、微粒子を含ま
ないエチルシリケートのアルコール溶液を用いて形成し
た従来の反射防止膜が液滴から形成される凹凸による拡
散反射のみを利用して防眩効果を持たせているのに対し
て、必ずしも凹凸を設ける必要がない。従って、凹凸の
程度が小さいかあるいは平坦な膜で済むために、映像を
ゆがめることがなく、解像度が向上する。なお、上記ス
プレー液組成において、微粒子の粒径が１０ｎｍよりも
小さい場合およびその添加量が０．１重量％よりも小さ
い場合には、上記の膜構成による反射防止特性は得られ
ない。また、微粒子粒径が５００ｎｍよりも大きい場合
およびその添加量が５重量％よりも多い場合には拡散反
射効果が支配的となるため解像度が低下する。The anti-glare film obtained as described above exhibits anti-reflection properties as described above due to the structure of the film itself. While the anti-glare effect is achieved by utilizing only the diffuse reflection caused by the unevenness formed by the droplets, it is not necessary to provide the unevenness. Therefore, since a film with small irregularities or a flat film is sufficient, the image is not distorted and the resolution is improved. In addition, in the above spray liquid composition, when the particle size of the fine particles is smaller than 10 nm and when the amount added is smaller than 0.1% by weight, the antireflection properties by the above film structure cannot be obtained. Further, when the particle size of the fine particles is larger than 500 nm and when the amount added is larger than 5% by weight, the diffuse reflection effect becomes dominant and the resolution decreases.
また、帯電防止性能を付与するために設ける導電性膜は
、導電性金属酸化物を含むエチルシリケートのアルコー
ル溶液をスピンコーティングすることによって形成して
もよく、スプレーコーティングすることによって形成し
てもよい。Further, the conductive film provided to impart antistatic performance may be formed by spin coating or spray coating an alcohol solution of ethyl silicate containing a conductive metal oxide. .
なお、導電性膜と防眩膜とを組合わせて適用する場合に
も、また、防眩膜を単独で適用する場合にも、防眩膜の
形成はスプレーコーティングによる方が、膜の均一性お
よび欠点の発生が少いという点で、優れていることが実
験的に確認されている。In addition, even when applying a combination of a conductive film and an anti-glare film, or when applying an anti-glare film alone, it is better to form an anti-glare film by spray coating because the uniformity of the film is better. It has been experimentally confirmed that it is superior in that it has fewer defects.
以下、本発明の防眩性ブラウン管について、実施例によ
って具体的に説明する。EXAMPLES Hereinafter, the anti-glare cathode ray tube of the present invention will be specifically explained using examples.
実施例 １
まず、エチルシリケート（Ｓｉ（○ＣＺ Ｈｓ ） ４
）をエタノールに溶解し、これに分散剤、乾燥調節剤
、加水分解触媒を添加し、さらに粒径５０〜１２０ｎｍ
に整粒したＳ ｉ Ｏ，微粒子を１％添加して混合液を
作成した。Example 1 First, ethyl silicate (Si(○CZ Hs) 4
) was dissolved in ethanol, a dispersant, a drying regulator, and a hydrolysis catalyst were added thereto, and the particles had a particle size of 50 to 120 nm.
A mixed solution was prepared by adding 1% of sized SiO and fine particles to the solution.
次に、ブラウン管のフェースプレート（第１図の４）の
表面を清浄化した後、約４０°〜６０’Ｃに予熱した状
態で、上記混合液をスプレーコーティングし、次いで、
空気中１５０°〜１８０℃の温度で３０分間の焼成を行
って防眩膜１を形成した。Next, after cleaning the surface of the face plate (4 in Figure 1) of the cathode ray tube, the above mixture was spray coated while preheated to about 40° to 60'C, and then,
The antiglare film 1 was formed by baking in air at a temperature of 150° to 180° C. for 30 minutes.
以上のようにして得られた防眩膜１の正反射率Ｒ，ｉ：
ｉ約０．１３％で、防眩性に優れていることが確認され
た。この値は前出の計算結果とよく一致する値である。Regular reflectance R,i of the anti-glare film 1 obtained as above:
It was confirmed that the anti-glare property was excellent with an i of about 0.13%. This value agrees well with the calculation results described above.
また、このときのＪ Ｉ Ｓ Ｚ８７４１によるグロス
値は６０％であった。なお、パーチャート法によって解
像度を測定した結果、８２本／口であり、高画質を得る
ために十分な解像度を有していることが知られた。Further, the gross value according to JIS Z8741 at this time was 60%. In addition, as a result of measuring the resolution by the Parchart method, it was found that the resolution was 82 lines/mouth, which was sufficient to obtain high image quality.
また、上記膜形成の手順において、スプレー時間を変え
てコーティングを行い、得られた膜についてグロス値と
解像度との関係、および、スプレー時間とグロス値との
関係を求めた結果を、それぞれ、第２図Ｉおよび第３図
Ｉに示した。同様にして、微粒子を含まないエチルシリ
ケート溶液を用いてコーティングを行ういわゆる従来技
術の膜について得られた結果を、それぞれ、第２図■お
よび第３図■に示した。この結果から、同一グロス値で
比較した場合に、■が■に比べて解像度的に格段に優れ
ていること、また、スプレー時間も、グロス値６０％で
比較した場合に、■が１分間であるのに対して■では約
３．５分を要することがわかる。また、同一グロス値（
６０％）の膜について顕微鏡観察を行った結果、■の膜
は凹凸が少なく、比較的平坦であるのに対し、■の膜は
凹凸が多く、かつ１重なり合っているために、凹凸の激
しい膜であった。In addition, in the above film formation procedure, coating was performed while changing the spray time, and the results of determining the relationship between the gloss value and resolution and the relationship between spray time and gloss value for the obtained film were determined respectively. It is shown in Figure 2 I and Figure 3 I. Similarly, the results obtained for so-called prior art membranes coated with a particulate-free ethylsilicate solution are shown in FIGS. 2 (2) and 3 (3), respectively. From this result, when comparing at the same gloss value, ■ is significantly superior to ■ in terms of resolution, and when comparing at a gloss value of 60%, ■ is 1 minute. It can be seen that, on the other hand, it takes about 3.5 minutes for ■. Also, the same gross value (
As a result of microscopic observation of the film (60%), it was found that the film (■) has few irregularities and is relatively flat, whereas the film (■) has many irregularities and is overlapping, so it is a film with severe irregularities. Met.
なお、強度に関しては、両者とも、機械的強度、化学的
強度ともに実用的に十分な強度を有する膜であった。Regarding strength, both films had practically sufficient mechanical strength and chemical strength.
実施例 ２
ブラウン管のフェースプレート表面に予めＳｎＯ２とｓ
ｂ、ｏ３とを含むエチルシリケートのエタノール溶液を
スピンコーティングし、その上に、実施例１の場合と全
く同様にして、防眩膜を形成した。このようにして得ら
れた膜は、反射特性。Example 2 SnO2 and s were applied to the face plate surface of a cathode ray tube in advance.
An ethanol solution of ethyl silicate containing b and o3 was spin-coated, and an anti-glare film was formed thereon in exactly the same manner as in Example 1. The film thus obtained has reflective properties.
強度ともに実施例１の場合と同様の特性を示した。Both strength and properties were similar to those of Example 1.
なお、帯電防止性能は、２９’のブラウン管に実装した
場合、帯電量は０．２ｋＶ以下であり、静電気も２秒以
下で消失し、ＯｋＶとなった。Regarding the antistatic performance, when mounted on a 29' cathode ray tube, the amount of charge was 0.2 kV or less, and the static electricity disappeared in 2 seconds or less, resulting in OkV.
実施例 ３
導電膜をスプレーコーティングにより形成した以外、実
施例２と全く同様にして膜の形成を行った。得られた膜
は、光学特性的には実施例１の場合と全く同様の特性を
示し、機械的強度は約２０％向上した。Example 3 A film was formed in the same manner as in Example 2, except that the conductive film was formed by spray coating. The obtained film showed exactly the same optical properties as in Example 1, and the mechanical strength was improved by about 20%.
なお、上記の実施例においては、コーテイング液添加微
粒子として５ｉｎ２を用いた場合について説明したが、
Ｓｉｎ、の代りにＵ、Ｏ，、ＭｇＦ、、Ｂ２０．、Ｚｒ
Ｏ２、ＴｉＯ２を用いた場合にも全く同様の結果が得ら
れた。In addition, in the above example, the case where 5in2 was used as the fine particles added to the coating liquid was explained.
Instead of Sin, U, O,, MgF,, B20. ,Zr
Exactly the same results were obtained when O2 and TiO2 were used.
以上述べてきたように、防眩性ブラウン管を本発明構成
のブラウン管とすることによって、従来技術の有してい
た課題を解決して、解像特性、膜強度的にも優れ、かつ
、特に優れた防眩特性を有する防眩性ブラウン管を提供
することができた。As described above, by making an anti-glare cathode ray tube having the structure of the present invention, the problems of the prior art can be solved, and it has excellent resolution characteristics and film strength. It was possible to provide an anti-glare cathode ray tube having excellent anti-glare properties.
また、帯電防止性能を付与するために導電性膜と組合わ
せて適用する場合、スピンコーティングによる被覆では
液の流れ、ゴミ等による欠点が顕在化するが、スプレー
コーティングによる被覆を行うことによってそれらの欠
点の発生を防止することができるため、特に高品質の膜
を得ることができる。In addition, when applied in combination with a conductive film to provide antistatic performance, spin coating tends to have disadvantages due to liquid flow, dust, etc., but spray coating can eliminate these problems. Since the occurrence of defects can be prevented, a film of particularly high quality can be obtained.
なお、本願で開示した技術は、ブラウン管に限定される
ことなく１本発明の主旨を逸脱しない範囲で、各種デイ
スプレー装置にも適用できるものであることは言うまで
もない。It goes without saying that the technology disclosed in this application is not limited to cathode ray tubes, but can also be applied to various display devices without departing from the gist of the present invention.
【図面の簡単な説明】
第１図は本発明防眩性ブラウン管の一実施例の構成を示
す模式断面図で（ａ）は全体図、（ｂ）は（ａ）の丸で
囲んだ部分の拡大図、第２図はグロス値と解像度との関
係を示す図、第３図はスプレー時間とグロス値との関係
を示す図である。
１・・・防眩膜
２・・・エチルシリケートの分解により形成された５ｉ
ｎ２膜
３・・・添加微粒子（Ｓ ｉ Ｏ，）
４・・・フェースプレート[Brief Description of the Drawings] Fig. 1 is a schematic sectional view showing the structure of an embodiment of an anti-glare cathode ray tube of the present invention, in which (a) is an overall view, and (b) is a section of the circled part in (a). An enlarged view, FIG. 2 is a diagram showing the relationship between gloss value and resolution, and FIG. 3 is a diagram showing the relationship between spray time and gloss value. 1... Anti-glare film 2... 5i formed by decomposition of ethyl silicate
n2 film 3... Added fine particles (S i O,) 4... Face plate
Claims (1)
るエチルシリケート溶液にＳｉＯ＿２、Ａｌ＿２Ｏ＿３
、ＭｇＦ＿２、Ｂ＿２Ｏ＿３、ＺｒＯ＿２およびＴｉＯ
＿２の中から選ばれる少なくとも１種以上の微粒子を添
加した混合液をスプレーコーティングすることによって
形成した防眩膜を有することを特徴とする防眩性ブラウ
ン管。1. SiO_2, Al_2O_3 in ethyl silicate solution with alcohol as the main solvent on the face plate surface.
, MgF_2, B_2O_3, ZrO_2 and TiO
An anti-glare cathode ray tube characterized by having an anti-glare film formed by spray coating a liquid mixture containing at least one type of fine particles selected from _2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21487689A JPH0378946A (en) | 1989-08-23 | 1989-08-23 | Antiglare cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21487689A JPH0378946A (en) | 1989-08-23 | 1989-08-23 | Antiglare cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0378946A true JPH0378946A (en) | 1991-04-04 |
Family
ID=16663033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21487689A Pending JPH0378946A (en) | 1989-08-23 | 1989-08-23 | Antiglare cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0378946A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5539275A (en) * | 1992-04-06 | 1996-07-23 | Matsushita Electric Corporation | Display device and a method for producing the same |
| US7291386B2 (en) | 2004-08-26 | 2007-11-06 | 3M Innovative Properties Company | Antiglare coating and articles |
| US7294405B2 (en) | 2004-08-26 | 2007-11-13 | 3M Innovative Properties Company | Antiglare coating and articles |
-
1989
- 1989-08-23 JP JP21487689A patent/JPH0378946A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5539275A (en) * | 1992-04-06 | 1996-07-23 | Matsushita Electric Corporation | Display device and a method for producing the same |
| US7291386B2 (en) | 2004-08-26 | 2007-11-06 | 3M Innovative Properties Company | Antiglare coating and articles |
| US7294405B2 (en) | 2004-08-26 | 2007-11-13 | 3M Innovative Properties Company | Antiglare coating and articles |
| US7736428B2 (en) | 2004-08-26 | 2010-06-15 | 3M Innovative Properties Company | Antiglare coating and articles |
| US7780776B2 (en) | 2004-08-26 | 2010-08-24 | 3M Innovative Properties Company | Antiglare coatings and articles |
| US8003194B2 (en) | 2004-08-26 | 2011-08-23 | 3M Innovative Properties Company | Touch screen comprising antiglare coating articles |
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