JPS5931826B2 - color display tube - Google Patents
color display tubeInfo
- Publication number
- JPS5931826B2 JPS5931826B2 JP53072016A JP7201678A JPS5931826B2 JP S5931826 B2 JPS5931826 B2 JP S5931826B2 JP 53072016 A JP53072016 A JP 53072016A JP 7201678 A JP7201678 A JP 7201678A JP S5931826 B2 JPS5931826 B2 JP S5931826B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- absorbing coating
- display screen
- color display
- display 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.)
- Expired
Links
- 238000000576 coating method Methods 0.000 claims description 32
- 239000011248 coating agent Substances 0.000 claims description 31
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 238000010894 electron beam technology Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 3
- 239000010408 film Substances 0.000 description 23
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 18
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004922 lacquer Substances 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 239000011362 coarse particle Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
Classifications
-
- 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
- H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
- H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
- H01J29/327—Black matrix materials
-
- 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
- H01J29/28—Luminescent screens with protective, conductive or reflective layers
-
- 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
- H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
- H01J9/2278—Application of light absorbing material, e.g. between the luminescent areas
Description
【発明の詳細な説明】
本発明は、排気容器内に少くとも１本の電子ビームを発
生する装置と、光吸収コーティングで囲まれた種々の色
で発光する多数の発光素子を有する表示スクリーンを具
え、該表示スクリーンは金属膜で被覆して成る（カラー
表示管に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a device for generating at least one electron beam in an evacuated vessel and a display screen having a number of light emitting elements emitting light in different colors surrounded by a light absorbing coating. and the display screen is coated with a metal film (relating to color display tubes).
発光素子は通常多数のけい光体ドツト又は細条のトリオ
を構成し、各トリオの発光素子はそれぞれ３原色の赤、
緑及び青を表示する。The light-emitting elements usually constitute a trio of multiple phosphor dots or strips, each trio having a light-emitting element of each of the three primary colors: red,
Display green and blue.
けい光体細条又はドツト間には光吸収コーティング（通
常黒色の酸化マンガン及び／又は酸化鉄から成り、屡屡
マトリックスコーティングと称されている）を設けて、
発光けい光体ドツト又は細条により得られる像のコント
ラストが増大するようにする。A light-absorbing coating (usually consisting of black manganese oxide and/or iron oxide, often referred to as a matrix coating) is provided between the phosphor strips or dots;
The contrast of the image obtained by the luminescent phosphor dots or strips is increased.
表示スクリーンの前には、けい光体ドツト又は細条トリ
オｌこ対し適当ｌこ配列された極めて多数の円形又はス
ロット状の孔を有する色選択電極を配置して各原色と関
連する電子ビームがその色のけい光素子にのみ射突する
ようにする。In front of the display screen is arranged a color selection electrode having a very large number of circular or slot-like holes arranged in a suitable arrangement over a trio of phosphor dots or strips so that the electron beam associated with each primary color is emitted. Make it hit only the fluorescent elements of that color.
この光吸収コーティングはけい光領域上に射突しない電
子ビームを吸収することもでき、従ってランデング領域
としても作用する。This light-absorbing coating can also absorb electron beams that do not impinge on the fluorescent region, and thus also acts as a landing region.
発光素子及び光吸収コーディング上には、通常、電極と
して作用すると共にその光反射作用（こより像の輝度を
高める作用もする薄い金属膜（例えばアルミニウム膜）
が設けられる。On the light-emitting element and the light-absorbing coating, there is usually a thin metal film (e.g. aluminum film) that acts as an electrode and also has a light-reflecting effect (thus increasing the brightness of the image).
will be provided.
斯るカラー表示管は米国特許第３８９０５２７号明細書
に開示されており、このカラー表示管ではけい光素子に
付着する金属膜を表示スクリーン全体上ｌこ設けている
。Such a color display tube is disclosed in U.S. Pat. No. 3,890,527, in which a metal film is provided over the entire display screen to adhere to the fluorescent elements.
しかし、種々の測定の結果、このように設けられたアル
ミニウム膜の光反射作用は最適ではなく、また表示スク
リーン全域に亘って等しい強さとならないことが確かめ
られた。However, as a result of various measurements, it has been confirmed that the light reflecting effect of the aluminum film thus provided is not optimal and is not of equal strength over the entire area of the display screen.
本発明の目的は金属膜の光反射作用をこれまで製造され
ているこの種のカラー表示管よりも著しく良好に且つ均
一にしたこの種のカラー表示管を提供せんとする（こあ
る。An object of the present invention is to provide a color display tube of this type in which the light reflection effect of the metal film is significantly better and more uniform than in color display tubes of this type manufactured hitherto.
本発明カラー表示管は、光吸収コーティングの厚さを発
光素子の厚さよりも少くとも３μｍ厚くすると共に、金
属膜を光吸収コーティングに付着させたことを特徴とす
る。The color display tube of the present invention is characterized in that the thickness of the light-absorbing coating is at least 3 μm thicker than the thickness of the light-emitting element, and a metal film is attached to the light-absorbing coating.
本明細書において、「厚さ」とは常に平均の厚さを意味
する。In this specification, "thickness" always means average thickness.
このようｌこ厚い光吸収コーティングの結果として、金
属膜は光吸収コーティングに付着し、発光素子には付着
しない。As a result of this thicker light-absorbing coating, the metal film adheres to the light-absorbing coating and not to the light emitting device.
既知のように、金属膜を設ける前には、先ずラッカー溶
液（例えばコロジオン溶液）を発光素子及びマトリック
スコーティング上に被着し、次いで乾燥して均一なラッ
カーの薄膜を形成する。As is known, before applying the metal film, a lacquer solution (for example a collodion solution) is first applied onto the light emitting element and the matrix coating and then dried to form a uniform thin film of lacquer.
今までの表示管では、発光素子の粒子が前記ラッカー薄
膜から幾分突出する。In conventional display tubes, the particles of the light-emitting elements protrude somewhat from the lacquer film.
金属薄膜を蒸着へ加熱（こよりラッカー薄膜を除去する
と、金属膜がけい光素子に付着する。When the lacquer film is removed by heating the metal film to vapor deposition, the metal film adheres to the fluorescent element.
発光素子は少くとも部分的に金属膜から突出し、金属膜
を破り、これを不規則なものとするため、その光反射作
用が発光素子に付着した部分で減少する。The light emitting element at least partially protrudes from the metal film, rupturing the metal film and making it irregular, so that its light reflection effect is reduced in the areas attached to the light emitting element.
この反射作用の減少は表示スクリーン全域に亘って一様
に生じないため、画像輝度が表示スクリーン全域に亘っ
て一様（こならなくなる。This reduction in reflection does not occur uniformly across the display screen, so the image brightness is not uniform across the display screen.
本発明によれば、金属膜は主として光吸収コーティング
に付着するため、その反射作用を劣化する上述の効果は
生ぜず、表示スクリーンの総合輝度及び輝度の均一性が
増大する。According to the invention, since the metal film is primarily attached to the light-absorbing coating, the above-mentioned effect of degrading its reflective action does not occur, and the overall brightness and brightness uniformity of the display screen is increased.
本発明では、光吸収コーティングは直径１５μｍ以上の
粒子を少くとも５０重量楚含有する材料で構成するのが
好適である。According to the present invention, the light-absorbing coating is preferably comprised of a material containing at least 50 kg by weight of particles having a diameter of 15 μm or more.
本明細書において粒子の直径とは常に平均直径、即ち同
−材料及び同一重量の球形粒子の直径に換算した値を意
味する。In this specification, the diameter of a particle always means the average diameter, ie the value converted to the diameter of spherical particles of the same material and weight.
これまで製造されてきた表示管においては常（こ約１μ
ｍの直径の粒子を使用していた。Display tubes manufactured to date always have a
Particles with a diameter of m were used.
本発明では、これより粗い粒子を使用すると、光吸収コ
ーティングを発光素子より少くとも３μｍ厚く設けるこ
とが約１μｍの直径の微粒子を用いる場合よりも一層容
易となることを確かめた。In the present invention, we have found that using coarser particles makes it easier to provide the light-absorbing coating at least 3 μm thicker than the light-emitting element than when using fine particles with a diameter of about 1 μm.
粗粒子を使用する他のオＵ点は、これら粗粒子は発光素
子内に存在し得る亀裂や穴内に侵入し難いことである。Another advantage of using coarse particles is that they are less likely to penetrate into cracks and holes that may exist within the light emitting device.
発光素子の亀裂や穴内への光吸収材料の侵入は表示画像
に妨害となる黒い縞や黒点を生ずる。Intrusion of light-absorbing material into cracks or holes in the light-emitting device results in black stripes or spots that interfere with the displayed image.
本発明表示スクリーンは既知の写真或は電子写真法によ
り製造する。The display screen of the present invention is manufactured by known photographic or electrophotographic methods.
先ず最初、光吸収コーティングを例えばストライプパタ
ーンに設け、次いでこれらストライプ間に発光素子を設
けることができる。First, a light-absorbing coating can be provided, for example in a striped pattern, and then light-emitting elements can be provided between these stripes.
或は又、先ず最初発光素子を設け、次いで光吸収コーテ
ィングを設けることもできる。Alternatively, the light emitting element can be provided first and then the light absorbing coating can be provided.
図面につき本発明を説明する。The invention will be explained with reference to the drawings.
第１図は本発明カラー表示管の一例の斜視図を示す。FIG. 1 shows a perspective view of an example of a color display tube of the present invention.
表示窓２、コニカル部３及びネック部４から成るガラス
器１内には３本の電子ビーム８，９及び１０を発生する
３個の電子銃５，６及びγが設けられている。Three electron guns 5, 6 and .gamma. which generate three electron beams 8, 9 and 10 are provided in a glassware 1 consisting of a display window 2, a conical section 3 and a neck section 4.
これら電子ビームは色選択電極１２の孔１１を通って表
示スクリーンを構成するけい光体細条１４，１５及び１
６のトリオ上に射突する。These electron beams pass through the holes 11 in the color selection electrode 12 and pass through the phosphor strips 14, 15 and 1 forming the display screen.
Fires at the trio of 6.
赤色（Ｒ）けい光体細条１４、緑色（Ｇけい光体細条１
５及び青色（Ｂ）けい光体細条１６を本例では酸化マン
ガンと酸化鉄の混合物から成る黒色光吸収コーティング
１１により分離する。Red (R) phosphor strip 14, green (G phosphor strip 1
5 and blue (B) phosphor strips 16 are separated by a black light-absorbing coating 11, which in this example consists of a mixture of manganese oxide and iron oxide.
このコーティング及びけい光体細条」二に通常の如く蒸
着によりアルミニウム膜１３を設ける。This coating and phosphor strips are provided with an aluminum film 13 by conventional vapor deposition.
本発明ではこのアルミニウム膜１３を主として光吸収コ
ーティング１７に付着させる。In the present invention, this aluminum film 13 is mainly attached to the light absorbing coating 17.
このようにすると、前述したようｌこ表示画像の輝度及
び均一性が向上する（この点については他の図を参照し
て後に更に説明する）。This improves the brightness and uniformity of the displayed image as described above (this point will be further explained later with reference to other figures).
３本の電子ビーム８，９及び１０は互に小角度（いわゆ
る色選択角度）をなし、各々１つの色のけい光体細条に
のみ射突する。The three electron beams 8, 9 and 10 make small angles to each other (so-called color selection angles) and each impinge only on the phosphor strips of one color.
例えば電子ビーム１０は常にけい光体細条１４ｇこのみ
射突する。For example, the electron beam 10 always impinges on the phosphor strip 14g.
電子ビームの偏向は通常の如く偏向コイル（図示せず）
により行なわれる。The electron beam is deflected by a deflection coil (not shown) as usual.
This is done by
第２図は表示スクリーンを具える表示窓２の１部とシャ
ドウマスク１２の１部を示す。FIG. 2 shows part of the display window 2 comprising the display screen and part of the shadow mask 12.
０，３μｍ厚のアルミニウム膜１３の１部は図示しない
で、けい光体細条１４，１５及び１６とそれらの間に位
置する酸化マンガンと酸化鉄から成る光吸収コーティン
グ１７が見えるようにした。A portion of the 0.3 μm thick aluminum film 13 is not shown, so that the phosphor strips 14, 15 and 16 and the light-absorbing coating 17 consisting of manganese oxide and iron oxide located between them are visible.
本例では、けい光体細条は厚さが約１０μｍ１幅が２０
０μｍである。In this example, the phosphor strips are approximately 10 μm thick and 20 μm wide.
It is 0 μm.
本例では光吸収コーティング１７は厚さが約１５μｍ１
幅が７０μｍであり、粗い粒子から成る。In this example, the light absorbing coating 17 has a thickness of approximately 15 μm1.
It has a width of 70 μm and consists of coarse particles.
籾い粒子により充分厚いコーティングを形成し、細かい
粒子を粗い粒子間の空間に充てんする。The rice grains form a sufficiently thick coating and the fine grains fill the spaces between the coarse grains.
けい光細条及び光吸収コーティングは他の種々の幅にす
ることができること勿論であり、また表示スクリーン上
の位置（こ応じて幅を変えることもできること勿論であ
る。Of course, the fluorescent strips and light-absorbing coatings can be of various other widths, and can also vary in width depending on their position on the display screen.
第３図は本発明カラー表示管に用いる表示スクリーンの
１部の断面図を示す。FIG. 3 shows a sectional view of a portion of the display screen used in the color display tube of the present invention.
本例では、０．３μｍ厚のアルミニウム膜は主として光
吸収コーティング１７＃こ付着し、けい光体細条１４，
１５及び１６には殆んど付着しない。In this example, the 0.3 μm thick aluminum film is mainly attached to the light absorbing coating 17, and the phosphor strips 14,
There is almost no adhesion to 15 and 16.
本例の光吸収コーティングは主として酸化マンガンの粒
子から成り、これら粒子の５０重量％の粒子の直径は１
５μｍ以上とする。The light-absorbing coating of this example consists primarily of particles of manganese oxide, of which 50% by weight have a diameter of 1
The thickness shall be 5 μm or more.
第４図は今まで使用されてきた表示スクリーンの１部の
断面図を示す。FIG. 4 shows a cross-sectional view of a portion of a display screen that has been used hitherto.
明瞭のため、第４図においても第３図と対応する素子に
は第３図と同一の符号を用いた。For clarity, the same reference numerals as in FIG. 3 are used for elements corresponding to those in FIG. 3 in FIG. 4 as well.
今まで使用されてきた表示スクリーンにおいては、前記
米国特許第３８９０５２７号明細書から明らかなように
、マトリックスコーティング（光吸収コーティング）は
けい光体細条と略々等しい厚さか、或はそれより薄い厚
さであった。In display screens that have been used hitherto, the matrix coating (light-absorbing coating) is approximately equal in thickness to the phosphor strips, or thinner, as is clear from the aforementioned U.S. Pat. No. 3,890,527. It was thick.
その結果アルミニウム膜１３り主としてけい光体細条に
付着した。As a result, the aluminum film 13 mainly adhered to the phosphor strips.
この付着の結果、けい光体のでこぼこ１８がアルミニウ
ム膜１３から突出し、その結果けい光体で発生した光の
１部がアルミニウム膜で反射されずに失なわれてしまう
。As a result of this adhesion, the bumps 18 of the phosphor protrude from the aluminum film 13, so that a portion of the light generated by the phosphor is not reflected by the aluminum film and is lost.
この付着は表示スクリーン全体に亘って均一でないため
、表示画像の輝度が全ての個所で等しくならなくなる。This deposition is not uniform across the display screen, resulting in the displayed image having unequal brightness at all locations.
本発明では光吸収コーティングが厚いため金属薄膜は主
として光吸収コーティングに付着するので、上述の欠点
は生じない。In the present invention, because the light-absorbing coating is thick, the metal thin film mainly adheres to the light-absorbing coating, so that the above-mentioned drawbacks do not occur.
第１図は本発明カラー表示管の一例の１部を破除して示
す斜視図、第２図はその表示スクリーンの１部及び色選
択電極の１部の斜視図、第３図は本発明による表示スク
リーンの１部の断面図、第４図は従来の表示スクリーン
の１部の断面図である。
１・・・・・・ガラス器、２・・・・・・表示窓、３・
・・・・・コニカル部、４・・・・・・ネック部、５，
６，７・・・・・・電子銃、８．９．１０・・・・・・
電子ビーム、１１・・・・・・色選択電極孔、１２・・
・・・・色選択電極、１３・・・・・・アルミニウム薄
膜、１４，１５，１６・・・・・・けい光細条、１Ｔ・
・・・・・光吸収コーティング。FIG. 1 is a partially cutaway perspective view of an example of a color display tube according to the present invention, FIG. 2 is a perspective view of a portion of the display screen and a portion of the color selection electrode, and FIG. 3 is a perspective view of a color display tube according to the present invention. A cross-sectional view of a portion of a display screen. FIG. 4 is a cross-sectional view of a portion of a conventional display screen. 1...Glassware, 2...Display window, 3.
...Conical part, 4...Neck part, 5,
6,7...Electron gun, 8.9.10...
Electron beam, 11...Color selection electrode hole, 12...
...Color selection electrode, 13... Aluminum thin film, 14, 15, 16... Luminescent stripes, 1T.
...Light absorption coating.
Claims (1)
る装置と、光吸収コーティングで囲まれた種々の色で発
光する多数の発光素子を有する表示スクリーンとを具え
、該表示スクリーンは金属膜で被覆して成るカラー表示
管において、前記光吸収コーティングの厚さを前記発光
素子の厚さより少くとも３μｍ厚くしたことを特徴とす
るカラー表示管。 ２、特許請求の範囲１記載のカラー表示管において、前
記光吸収コーティングを形成する材料を粒子含有材料と
し、これら粒子の少くとも５０重量係の粒子は１５μｍ
以上の直径を有するものとしたことを特徴とするカラー
表示管。[Scope of Claims] 1. In an evacuated container, comprising a device for generating at least one electron beam and a display screen having a number of light emitting elements emitting light in different colors surrounded by a light absorbing coating, A color display tube in which the display screen is coated with a metal film, characterized in that the thickness of the light-absorbing coating is at least 3 μm thicker than the thickness of the light-emitting element. 2. The color display tube according to claim 1, wherein the material forming the light-absorbing coating is a particle-containing material, and at least 50% by weight of these particles have a diameter of 15 μm.
A color display tube characterized in that it has a diameter equal to or greater than or equal to the diameter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7706617A NL7706617A (en) | 1977-06-16 | 1977-06-16 | COLOR IMAGE TUBE. |
| NL000007706617 | 1977-06-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS547269A JPS547269A (en) | 1979-01-19 |
| JPS5931826B2 true JPS5931826B2 (en) | 1984-08-04 |
Family
ID=19828731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53072016A Expired JPS5931826B2 (en) | 1977-06-16 | 1978-06-14 | color display tube |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5931826B2 (en) |
| BE (1) | BE868113A (en) |
| CA (1) | CA1101915A (en) |
| DE (1) | DE2826134A1 (en) |
| ES (1) | ES470761A1 (en) |
| FR (1) | FR2394888A1 (en) |
| GB (1) | GB2000366B (en) |
| IT (1) | IT1095069B (en) |
| NL (1) | NL7706617A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5675212A (en) | 1992-04-10 | 1997-10-07 | Candescent Technologies Corporation | Spacer structures for use in flat panel displays and methods for forming same |
| GB8707975D0 (en) * | 1987-04-03 | 1987-05-07 | Philips Nv | Colour cathode ray tube |
| FR2647592B1 (en) * | 1989-05-23 | 1991-07-26 | Thomson Tubes Electroniques | THIN FILM CATHODOLUMINESCENT SHIELD FOR HIGH LUMINANCE CATHODE RAY TUBE |
| KR950004395B1 (en) * | 1992-12-16 | 1995-04-28 | 삼성전관주식회사 | C-crt having enhanced screen and manufacturing method for the same |
| DE69430568T3 (en) * | 1993-02-01 | 2007-04-26 | Candescent Intellectual Property Services, Inc., San Jose | FLAT SCREEN WITH INTERNAL STRUCTURE |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3223872A (en) * | 1962-08-13 | 1965-12-14 | Paramount Pictures Corp | Color screen with electron- and lightabsorptive material separating adjacent color strips |
| CA924564A (en) * | 1969-10-01 | 1973-04-17 | E. Mayaud Edith | Process of fabricating a screen structure for a cathode ray tube |
| US3676127A (en) * | 1970-01-23 | 1972-07-11 | Staley Mfg Co A E | Color television tube fabrication |
| US3614503A (en) * | 1970-02-24 | 1971-10-19 | Zenith Radio Corp | Black-surround color picture tube |
| US3890527A (en) * | 1973-04-26 | 1975-06-17 | Westinghouse Electric Corp | Triad color screen having elements larger than mask apertures near screen center and smaller near periphery |
-
1977
- 1977-06-16 NL NL7706617A patent/NL7706617A/en not_active Application Discontinuation
-
1978
- 1978-06-08 CA CA305,030A patent/CA1101915A/en not_active Expired
- 1978-06-13 IT IT24534/78A patent/IT1095069B/en active
- 1978-06-13 GB GB7826765A patent/GB2000366B/en not_active Expired
- 1978-06-13 FR FR7817617A patent/FR2394888A1/en active Granted
- 1978-06-14 ES ES470761A patent/ES470761A1/en not_active Expired
- 1978-06-14 JP JP53072016A patent/JPS5931826B2/en not_active Expired
- 1978-06-14 BE BE188563A patent/BE868113A/en unknown
- 1978-06-15 DE DE19782826134 patent/DE2826134A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IT7824534A0 (en) | 1978-06-13 |
| FR2394888B1 (en) | 1983-03-25 |
| IT1095069B (en) | 1985-08-10 |
| FR2394888A1 (en) | 1979-01-12 |
| CA1101915A (en) | 1981-05-26 |
| ES470761A1 (en) | 1979-02-01 |
| GB2000366B (en) | 1982-01-27 |
| JPS547269A (en) | 1979-01-19 |
| NL7706617A (en) | 1978-12-19 |
| DE2826134C2 (en) | 1987-02-05 |
| DE2826134A1 (en) | 1978-12-21 |
| GB2000366A (en) | 1979-01-04 |
| BE868113A (en) | 1978-12-14 |
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