JP2001126646A - Cathode-ray tube - Google Patents
Cathode-ray tubeInfo
- Publication number
- JP2001126646A JP2001126646A JP2000281875A JP2000281875A JP2001126646A JP 2001126646 A JP2001126646 A JP 2001126646A JP 2000281875 A JP2000281875 A JP 2000281875A JP 2000281875 A JP2000281875 A JP 2000281875A JP 2001126646 A JP2001126646 A JP 2001126646A
- Authority
- JP
- Japan
- Prior art keywords
- glass panel
- ray tube
- face portion
- thickness
- center
- 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
Landscapes
- Surface Treatment Of Glass (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、テレビジョン受信機等
に使用される陰極線管に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cathode ray tube used for a television receiver or the like.
【0002】[0002]
【従来の技術】図2は、一般的な陰極線管の構造を示す
一部破断概略説明図である。この陰極線管は、内面に蛍
光膜10を有するガラスパネル11と、このガラスパネ
ル11の背後を形成する漏斗状のファンネル12及び電
子銃を収納するネック13からなるガラスバルブを外囲
器として有している。また蛍光膜10に対向するように
してシャドーマスク14が配設されており、電子銃から
出た電子線が、シャドーマスク14を通して蛍光膜10
に照射されることにより、ガラスパネル11の前面部
(以下、フェース部という)に映像が映し出される。2. Description of the Related Art FIG. 2 is a partially broken schematic explanatory view showing the structure of a general cathode ray tube. This cathode ray tube has, as an envelope, a glass bulb comprising a glass panel 11 having a fluorescent film 10 on the inner surface, a funnel-shaped funnel 12 forming the back of the glass panel 11 and a neck 13 for accommodating an electron gun. ing. A shadow mask 14 is provided so as to face the fluorescent film 10, and an electron beam emitted from the electron gun passes through the shadow mask 14
Is projected on the front part (hereinafter, referred to as a face part) of the glass panel 11.
【0003】このような陰極線管は、内部が高い真空状
態となっており、ガラスバルブには圧縮応力及び引張応
力が生じており、ガラスバルブに機械的衝撃が加えられ
ると爆縮を起こす危険性があるため、一般にガラスパネ
ルのフェース部の肉厚は、陰極線管として十分な強度を
維持する目的で、周辺付近が中央付近より厚くなってい
る。[0003] The inside of such a cathode ray tube is in a high vacuum state, compressive stress and tensile stress are generated in the glass bulb, and there is a danger of implosion when a mechanical shock is applied to the glass bulb. Therefore, the thickness of the face portion of the glass panel is generally thicker near the periphery than near the center in order to maintain sufficient strength as a cathode ray tube.
【0004】そのため通常のガラスパネルは、フェース
部の中央と周辺の透過率に差が生じやすく、中央に比べ
て周辺の輝度が低くなるため、画像の明るさにムラが生
じ、見づらくなる。[0004] For this reason, in a normal glass panel, a difference is likely to occur in the transmittance between the center and the periphery of the face portion, and the brightness at the periphery is lower than at the center.
【0005】またガラスパネルの透過率は、その用途に
応じて様々であるが、ガラスパネルの透過率が低くなる
ほど、フェース部の中央と周辺の肉厚差による透過率差
が大きくなる。Although the transmittance of the glass panel varies depending on the application, the lower the transmittance of the glass panel, the greater the difference in transmittance due to the difference in thickness between the center and the periphery of the face portion.
【0006】このような背景から、透過率の高いガラス
から作製されたガラスパネルを使用し、そのフェース部
に着色ガラス板を接着剤で貼り付けることによって、そ
の中央と周辺の透過率差を低減し、輝度差を小さくした
陰極線管が提案されている。[0006] Against this background, a glass panel made of glass having high transmittance is used, and a colored glass plate is attached to the face of the glass panel with an adhesive to reduce the difference in transmittance between the center and the periphery. In addition, a cathode ray tube with a reduced luminance difference has been proposed.
【0007】[0007]
【発明が解決しようとする課題】ところで近年、ガラス
パネルの平坦化が要求されつつあり、フェース部の外表
面の対角軸方向における曲率半径を10000mm以上
にすることが試みられている。しかしながら、ガラスパ
ネルのフェース部の曲率半径が大きくなるほど、爆縮の
危険性が高くなるため、上記のようにガラスパネルのフ
ェース部の外表面の対角軸方向における曲率半径を10
000mm以上にする場合には、フェース部の対角軸方
向における周辺の肉厚(TE)と、中央の肉厚(T0 )
を、1.2≦TE/T0 ≦4.0式を満足するように設
計している。In recent years, flattening of glass panels has been demanded, and attempts have been made to increase the radius of curvature of the outer surface of the face portion in the diagonal axis direction to 10,000 mm or more. However, as the radius of curvature of the face portion of the glass panel increases, the risk of implosion increases. Therefore, as described above, the radius of curvature of the outer surface of the face portion of the glass panel in the diagonal axis direction is set to 10
When the thickness is 000 mm or more, the peripheral wall thickness (TE) in the diagonal axis direction of the face portion and the central wall thickness (T 0 ).
Are designed to satisfy the expression 1.2 ≦ TE / T 0 ≦ 4.0.
【0008】しかしながら、このようにガラスパネルの
フェース部の中央と周辺の肉厚差があまり大きくなる
と、その前面に、上記のような着色ガラス板を貼り付け
ても、その中央と周辺の透過率差を十分に低減するのが
困難になる。However, when the difference in thickness between the center and the periphery of the face portion of the glass panel becomes so large, even if the above-described colored glass plate is pasted on the front surface, the transmittance between the center and the periphery is increased. It is difficult to reduce the difference sufficiently.
【0009】またガラスパネルのフェース部の肉厚が大
きくなるほど、陰極線管が重くなるが、その前面に着色
ガラス板を貼り付けると、さらに陰極線管の重量が大き
くなり、搬送が困難になるという不具合もある。さらに
着色ガラス板を貼り付ける際に、接着剤中に気泡が混入
したり、脈理が発生し、画像が見づらくなることがあ
り、しかも長期間使用している間に接着剤が劣化して着
色ガラス板が剥離する虞れもある。Further, the cathode ray tube becomes heavier as the thickness of the face portion of the glass panel becomes larger. There is also. In addition, when attaching a colored glass plate, bubbles may be mixed into the adhesive or striae may occur, making it difficult to see the image. The glass plate may be peeled off.
【0010】本発明は、上記事情に鑑みなされたもので
あり、ガラスパネルのフェース部の中央と周辺の肉厚差
が大きくても、着色ガラス板を使用することなく、画像
の中央と周辺の透過率の差を低減できる陰極線管を提供
することを目的とするものである。The present invention has been made in view of the above circumstances, and even if the thickness difference between the center and the periphery of the face of the glass panel is large, the center and the periphery of the image are not used without using a colored glass plate. It is an object of the present invention to provide a cathode ray tube capable of reducing a difference in transmittance.
【0011】[0011]
【課題を解決するための手段】本発明の陰極線管は、フ
ェース部の中央と周辺とで肉厚が異なるガラスパネルを
用いた陰極線管であって、ガラスパネルの外表面には、
Au、Ag、Pd、Co、Sn、In、Ru、Tiから
選択された金属を含む化合物からなる着色膜が形成され
ており、この着色膜は、ガラスパネルのフェース部の肉
厚の厚い部分に対応する部分の膜厚が薄く、またガラス
パネルのフェース部の肉厚の薄い部分に対応する部分の
膜厚が厚く、これによってガラスパネルのフェース部の
中央と周辺の肉厚の違いによる透過率の差が低減されて
なることを特徴とする。The cathode ray tube of the present invention is a cathode ray tube using a glass panel having different thicknesses at the center and the periphery of the face portion, and the outer surface of the glass panel has
A colored film made of a compound containing a metal selected from Au, Ag, Pd, Co, Sn, In, Ru, and Ti is formed, and the colored film is formed on a thick portion of the face portion of the glass panel. The film thickness of the corresponding part is thin, and the film thickness of the part corresponding to the thin part of the face part of the glass panel is thick, so that the transmittance due to the difference in thickness between the center and the periphery of the face part of the glass panel Is characterized in that the difference is reduced.
【0012】また本発明の陰極線管は、ガラスパネルの
フェース部の外表面の対角軸方向における曲率半径が、
10000mm以上であることを特徴とし、ガラスパネ
ルのフェース部の外表面の対角軸方向における周辺の肉
厚をTE、中央の肉厚をT0とする時、1.2≦TE/
T0 ≦4.0の式を満足することを特徴とし、外表面に
着色膜が形成されたガラスパネルのフェース部の中央と
周辺の透過率の差が5%以内であることを特徴とする。In the cathode ray tube of the present invention, the outer surface of the face portion of the glass panel has a radius of curvature in a diagonal axis direction.
When characterized by at 10000mm or more, the thickness of the peripheral in the diagonal axis direction of the outer surface of the face portion of the glass panel TE, central thickness of the T 0, 1.2 ≦ TE /
It is characterized by satisfying the equation of T 0 ≦ 4.0, and the difference in transmittance between the center and the periphery of the face portion of the glass panel having the colored film formed on the outer surface is within 5%. .
【0013】[0013]
【作用】本発明の陰極線管において、ガラスパネルの外
表面に形成された透明の着色膜は、ガラスパネルのフェ
ース部の肉厚の厚い部分に対応する部分の膜厚が薄く、
またガラスパネルのフェース部の肉厚の薄い部分に対応
する部分の膜厚が厚くなっているため、従来、特にフェ
ース部の周辺のみで生じていた輝度の低下がなくなり、
フェース部の中央と周辺の透過率の差が低減され(小さ
くなり)、両者の透過率を近似させることが可能とな
る。In the cathode ray tube of the present invention, the transparent colored film formed on the outer surface of the glass panel has a small thickness at a portion corresponding to the thick portion of the face portion of the glass panel.
In addition, since the film thickness of the portion corresponding to the thin portion of the face portion of the glass panel is thicker, conventionally, the decrease in luminance that has occurred only around the face portion has been eliminated,
The difference between the transmittances at the center and the periphery of the face portion is reduced (smaller), and the transmittances of the two can be approximated.
【0014】そのためガラスパネルのフェース部の外表
面の対角軸方向における曲率半径を10000mm以上
とした場合に、防爆を考慮してガラスパネルのフェース
部の対角軸方向における周辺の肉厚をTEとし、中央の
肉厚をT0 とする時、TE/T0 が1.2以上となるよ
うにしても、成膜後のフェース部の中央と周辺の透過率
の差を5%以内に抑えることができ、実質的に画像の明
るさのムラを抑えることが可能となる。ただし、TE/
T0 が4.0以上になると、陰極線管の重量が大きくな
りすぎるため好ましくない。Therefore, when the radius of curvature of the outer surface of the face portion of the glass panel in the diagonal axis direction is 10,000 mm or more, the peripheral thickness of the face portion of the glass panel in the diagonal axis direction is set to TE in consideration of explosion protection. When the thickness at the center is T 0 , even if TE / T 0 is 1.2 or more, the difference in transmittance between the center and the periphery of the face portion after film formation is suppressed to within 5%. Thus, it is possible to substantially suppress unevenness in brightness of an image. However, TE /
When T 0 is 4.0 or more, the weight of the cathode ray tube becomes too large, which is not preferable.
【0015】また本発明では、ガラスパネルのフェース
部の肉厚の薄い部分の温度を、肉厚の厚い部分の温度よ
り高くした状態で回転させながら、その外表面に着色コ
ート液を塗布するスピンコート法によって着色膜を形成
することができ、ガラスパネルの温度が高い部分ほど、
着色コート液の塗布量が多くなるため、ガラスパネルの
フェース部の肉厚の厚い部分から薄い部分に向かうに従
って、形成される着色膜の膜厚は厚くなる。Further, in the present invention, the spinning is performed by applying a colored coating solution to the outer surface of the glass panel while rotating the thin portion of the face portion of the glass panel at a temperature higher than the temperature of the thick portion. A colored film can be formed by the coating method, and the higher the temperature of the glass panel,
Since the application amount of the coloring coating liquid increases, the thickness of the coloring film formed increases from the thicker portion to the thinner portion of the face portion of the glass panel.
【0016】しかも成膜方法として、スピンコート法を
採用すると、安価で、作業性良く、ガラスパネルのフェ
ース部の外表面に所望の膜厚を有する着色膜を塗布形成
することができる。またこの成膜作業は、ファンネルと
封合される前のガラスパネルに対して行っても良いし、
陰極線管とした後で行っても良い。ただしファンネルと
封合される前のガラスパネルに成膜する場合は、後の封
合工程等における熱処理時に劣化しないような膜材料を
選択する必要がある。Furthermore, when a spin coating method is employed as a film forming method, a colored film having a desired film thickness can be formed on the outer surface of the face portion of the glass panel at low cost and with good workability. This film formation work may be performed on the glass panel before being sealed with the funnel,
It may be performed after forming the cathode ray tube. However, when a film is formed on a glass panel before being sealed with the funnel, it is necessary to select a film material that does not deteriorate during heat treatment in a later sealing step or the like.
【0017】本発明における着色膜の材料としては、ガ
ラスパネルの透過率を低下し、所望の膜厚が得られると
いう理由から、Au、Ag、Pd、Co、Sn、In、
Ru、Tiから選択された金属を含む化合物が使用され
る。As the material of the colored film in the present invention, Au, Ag, Pd, Co, Sn, In, and the like are used because the transmittance of the glass panel is reduced and a desired film thickness can be obtained.
A compound containing a metal selected from Ru and Ti is used.
【0018】また着色膜の厚みは、使用する膜材料やパ
ネルガラスの形態等によって変化するが、例えばフェー
ス部の中央における膜厚は、50〜10000Åとし、
周辺における膜厚は、1〜5000Åとするのが適当で
ある。The thickness of the colored film varies depending on the film material used, the form of the panel glass, and the like. For example, the film thickness at the center of the face portion is set to 50 to 10000 °.
The film thickness at the periphery is suitably 1 to 5000 °.
【0019】[0019]
【実施例】以下、本発明を実施例及び比較例に基づいて
詳細に説明する。The present invention will be described below in detail based on examples and comparative examples.
【0020】(実施例)図1は、本発明の陰極線管(2
1インチ)を示す一部破断概略説明図であり、ガラスパ
ネル11、ファンネル12及びネック13が封合される
ことによってガラスバルブが作製されている。FIG. 1 shows a cathode ray tube (2) of the present invention.
FIG. 2 is a schematic explanatory view showing a partly broken view (1 inch), in which a glass bulb is manufactured by sealing a glass panel 11, a funnel 12, and a neck 13.
【0021】この陰極線管のガラスパネル11のフェー
ス部の対角軸方向における中央の肉厚(T0 )は10m
m、周辺の肉厚(TE)は20mm、フェース部の外表
面の対角軸方向における曲率半径は100000mmで
あり、フェース部の中央の透過率は80%、周辺の透過
率は70%である。またこのガラスパネル11のフェー
ス部の外表面には、導電性を有する銀・パラジウムから
なる着色膜15が形成され、この着色膜15の中央の膜
厚は、500Åであり、また周辺の膜厚は、300Åで
ある。The center thickness (T 0 ) of the face portion of the glass panel 11 of the cathode ray tube in the diagonal axis direction is 10 m.
m, the peripheral thickness (TE) is 20 mm, the radius of curvature of the outer surface of the face portion in the diagonal axis direction is 100,000 mm, the transmittance at the center of the face portion is 80%, and the transmittance at the periphery is 70%. . A colored film 15 made of conductive silver / palladium is formed on the outer surface of the face portion of the glass panel 11. The thickness of the colored film 15 at the center is 500 °, and the thickness at the periphery is 500 °. Is 300 °.
【0022】この陰極線管は、次のような方法で作製し
た。This cathode ray tube was manufactured by the following method.
【0023】まず、外表面側が上方に向くようにしてガ
ラスパネル11をスピンコート装置にセットした。その
後、ヒーターを用いて、ガラスパネル11のフェース部
の周辺の温度が約40℃、中央の温度が約50℃となる
ように加熱した状態で、ガラスパネル11を100rp
mの速度で回転させながら、フェース部のほぼ中央の上
方から銀・パラジウム着色コート液(固形分0.2%)
を所定量滴下することによって、ガラスパネル11のフ
ェース部の外表面全体に着色膜15を塗布形成した。First, the glass panel 11 was set on a spin coater with the outer surface side facing upward. Thereafter, the glass panel 11 was heated at 100 rpm using a heater so that the temperature around the face of the glass panel 11 was about 40 ° C. and the temperature at the center was about 50 ° C.
While rotating at a speed of m, a silver / palladium colored coating solution (solid content: 0.2%) from almost above the center of the face part
Was dropped by a predetermined amount to form a colored film 15 on the entire outer surface of the face portion of the glass panel 11.
【0024】こうして得られた着色膜付きガラスパネル
11の透過率を測定したところ、フェース部の中央と周
辺のいずれもが56%であり、このガラスパネル11を
用いて陰極線管を作製し、その画像を観視したところ、
明るさにムラは認められなかった。When the transmittance of the glass panel 11 with the colored film thus obtained was measured, both the center and the periphery of the face portion were 56%. A cathode ray tube was manufactured using this glass panel 11, and the cathode ray tube was manufactured. Looking at the image,
No unevenness was observed in the brightness.
【0025】(比較例)ガラスパネルのフェース部の全
体の温度を約40℃に加熱した状態で、外表面に着色コ
ート液を滴下した以外は、全て実施例と同じ条件で、着
色膜が塗布形成されたガラスパネルを作製した。(Comparative Example) A colored film was applied under the same conditions as in the example except that the colored coating solution was dropped on the outer surface while the entire temperature of the face portion of the glass panel was heated to about 40 ° C. The formed glass panel was produced.
【0026】このガラスパネルの外表面に塗布形成され
た着色膜は、全体に300Åの膜厚を有しており、その
透過率を測定したところ、フェース部の周辺は56%で
あったが、中央は64%と高く、これを用いて陰極線管
を作製し、その画像を観察したところ、明るさにムラが
あった。The colored film formed on the outer surface of the glass panel had a thickness of 300 ° as a whole, and its transmittance was measured to be 56% around the face portion. The center was as high as 64%, and a cathode ray tube was manufactured using this, and when the image was observed, the brightness was uneven.
【0027】尚、上記したガラスパネルの透過率は、分
光光度計により測定した波長380〜780mmの視感
平均透過率を適用した。As the transmittance of the above-mentioned glass panel, an average luminous transmittance at a wavelength of 380 to 780 mm measured by a spectrophotometer was applied.
【0028】[0028]
【発明の効果】以上のように本発明の陰極線管は、フェ
ース部の中央と周辺とで肉厚が異なるガラスパネルを使
用しながらも、着色膜によってフェース部の中央と周辺
の透過率の差が低減するため、画像の中央と周辺の輝度
差が小さくなり、明るさにムラが生じることはない。As described above, in the cathode ray tube of the present invention, the difference in transmittance between the center and the periphery of the face portion due to the colored film is obtained while using a glass panel having different thicknesses at the center and the periphery of the face portion. Is reduced, the luminance difference between the center and the periphery of the image is reduced, and there is no unevenness in brightness.
【0029】また本発明の陰極線管は、ガラスパネルの
外表面に着色膜を形成してなるため、着色ガラス板を使
用する場合に比べると、重量の増加が格段に小さく、長
期間に亘って良好な画像面を保つことができる。Further, since the cathode ray tube of the present invention is formed by forming a colored film on the outer surface of a glass panel, the increase in weight is remarkably small as compared with the case where a colored glass plate is used, and the cathode ray tube is used for a long time. A good image surface can be maintained.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の陰極線管を示す一部破断概略説明図で
ある。FIG. 1 is a partially cutaway schematic explanatory view showing a cathode ray tube of the present invention.
【図2】一般的な陰極線管の構造を示す一部破断概略説
明図である。FIG. 2 is a schematic explanatory view, partially broken away, showing a structure of a general cathode ray tube.
11 ガラスパネル 12 ファンネル 13 ネック 15 着色膜 11 Glass panel 12 Funnel 13 Neck 15 Colored film
Claims (4)
るガラスパネルを用いた陰極線管であって、ガラスパネ
ルの外表面には、Au、Ag、Pd、Co、Sn、I
n、Ru、Tiから選択された金属を含む化合物からな
る着色膜が形成されており、この着色膜は、ガラスパネ
ルのフェース部の肉厚の厚い部分に対応する部分の膜厚
が薄く、またガラスパネルのフェース部の肉厚の薄い部
分に対応する部分の膜厚が厚く、これによってガラスパ
ネルのフェース部の中央と周辺の肉厚の違いによる透過
率の差が低減されてなることを特徴とする陰極線管。1. A cathode ray tube using a glass panel having different thicknesses at the center and the periphery of a face portion, wherein Au, Ag, Pd, Co, Sn, and I are provided on an outer surface of the glass panel.
A colored film made of a compound containing a metal selected from n, Ru, and Ti is formed, and the colored film has a small thickness at a portion corresponding to the thick portion of the face portion of the glass panel, and The thickness of the part corresponding to the thin part of the face part of the glass panel is thicker, which reduces the difference in transmittance due to the difference in thickness between the center and the periphery of the face part of the glass panel. And a cathode ray tube.
角軸方向における曲率半径が、10000mm以上であ
ることを特徴とする請求項1記載の陰極線管。2. The cathode ray tube according to claim 1, wherein the radius of curvature of the outer surface of the face portion of the glass panel in the diagonal axis direction is 10,000 mm or more.
における周辺の肉厚をTE、中央の肉厚をT0 とする
時、1.2≦TE/T0 ≦4.0の式を満足することを
特徴とする請求項1、2記載の陰極線管。3. When the peripheral thickness of the face portion of the glass panel in the diagonal axis direction is TE and the central thickness is T 0 , the expression 1.2 ≦ TE / T 0 ≦ 4.0 is satisfied. 3. A cathode ray tube according to claim 1, wherein
ルのフェース部の中央と周辺の透過率の差が5%以内で
あることを特徴とする請求項1〜3記載の陰極線管。4. The cathode ray tube according to claim 1, wherein a difference in transmittance between the center and the periphery of the face portion of the glass panel having the colored film formed on the outer surface is within 5%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000281875A JP2001126646A (en) | 2000-09-18 | 2000-09-18 | Cathode-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000281875A JP2001126646A (en) | 2000-09-18 | 2000-09-18 | Cathode-ray tube |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10016398A Division JPH11283529A (en) | 1998-03-26 | 1998-03-26 | Cathode-ray tube and its manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001126646A true JP2001126646A (en) | 2001-05-11 |
Family
ID=18766470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000281875A Pending JP2001126646A (en) | 2000-09-18 | 2000-09-18 | Cathode-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2001126646A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003048754A (en) * | 2001-08-06 | 2003-02-21 | Asahi Glass Co Ltd | Substrate with photosensitive coat, method for manufacturing the same and method for manufacturing substrate with colored film |
-
2000
- 2000-09-18 JP JP2000281875A patent/JP2001126646A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003048754A (en) * | 2001-08-06 | 2003-02-21 | Asahi Glass Co Ltd | Substrate with photosensitive coat, method for manufacturing the same and method for manufacturing substrate with colored film |
JP4506051B2 (en) * | 2001-08-06 | 2010-07-21 | 旭硝子株式会社 | SUBSTRATE WITH PHOTOSENSITIVE COATING, METHOD FOR PRODUCING THE SAME, AND METHOD FOR PRODUCING SUBSTRATE WITH COLORED FILM |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR950000822B1 (en) | Projection television display tube and projection television device comprising at least one such tube | |
JPH0588497B2 (en) | ||
US5068568A (en) | Cathode ray tube having multilayer interference filter | |
JPS61220250A (en) | Cathode-ray tube | |
JP2000113841A (en) | Semi-flat panel for cathode ray tube | |
US3725710A (en) | Method of making a cathode-ray tube | |
US3890530A (en) | Precoat for fluorescent lamp | |
JPH11283530A (en) | Cathode-ray tube and its manufacture | |
US6268693B1 (en) | Cathode ray tube having a reduced difference in light transmittances between a central region and a peripheral region of a panel face thereof | |
JP3276105B2 (en) | Color picture tube | |
JP2001126646A (en) | Cathode-ray tube | |
JPH11283529A (en) | Cathode-ray tube and its manufacture | |
JPH11307017A (en) | Cathode ray tube and its manufacture | |
JP2000206307A (en) | Functional film and cathode-ray tube adopting it | |
JP2001110342A (en) | Cathode ray tube | |
JP2650924B2 (en) | Electron beam tube and method of manufacturing the same | |
KR20000009405A (en) | Image display panel having transparent conductive light select and absorbing film, manufacturing method thereof and coating solution thereof | |
JP2002231161A (en) | Cathode-ray tube, and method for manufacturing the same | |
JPH0588001A (en) | Formation of antireflection film on outside surface of face part of cathode ray tube | |
JPS60257043A (en) | Cathode-ray tube | |
JP2999038B2 (en) | Metal vapor discharge lamp and projection display using the same | |
JP2002071906A (en) | Electrically conductive antireflection film and glass panel for cathode-ray tube with the same formed by coating | |
JPS58152350A (en) | Phosphor screen for crt | |
TW501367B (en) | Method for television picture tubes contrast improvement | |
JPH11307018A (en) | Cathode ray tube |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040623 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040628 |
|
A02 | Decision of refusal |
Effective date: 20041021 Free format text: JAPANESE INTERMEDIATE CODE: A02 |