JPH02210486A - Filter for color information display device - Google Patents
Filter for color information display deviceInfo
- Publication number
- JPH02210486A JPH02210486A JP1031524A JP3152489A JPH02210486A JP H02210486 A JPH02210486 A JP H02210486A JP 1031524 A JP1031524 A JP 1031524A JP 3152489 A JP3152489 A JP 3152489A JP H02210486 A JPH02210486 A JP H02210486A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- light
- crt
- color information
- information display
- 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
- 239000000975 dye Substances 0.000 claims abstract description 26
- 238000002834 transmittance Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 239000003086 colorant Substances 0.000 claims abstract description 14
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 abstract description 3
- 150000004056 anthraquinones Chemical class 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 239000011521 glass Substances 0.000 description 7
- 230000031700 light absorption Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 206010052128 Glare Diseases 0.000 description 1
- 101000741289 Homo sapiens Calreticulin-3 Proteins 0.000 description 1
- 101000969621 Homo sapiens Monocarboxylate transporter 12 Proteins 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 102100021444 Monocarboxylate transporter 12 Human genes 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- -1 anthraquinone compound Chemical class 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 238000009125 cardiac resynchronization therapy Methods 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- PPSZHCXTGRHULJ-UHFFFAOYSA-N dioxazine Chemical compound O1ON=CC=C1 PPSZHCXTGRHULJ-UHFFFAOYSA-N 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
Landscapes
- Optical Filters (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、テレビジョン受像機等に使用されるカラー情
報表示装置用のフィルタに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a filter for a color information display device used in a television receiver or the like.
（従来の技術）
近年、カラーテレビジョン受像機（以降カラーＴＶと略
記する）、ＯＡ端末用カラーデイスプレィ装置等のカラ
ー情報端末装置は広く使用されている。このカラーＴＶ
等に使用されるカラー情報表示装置である、陰極線管（
以降ＣＲＴと略記する）等の前面に、コントラスト比を
補正・向上させるフィルタが配設又は形成される場合も
多い。(Prior Art) In recent years, color information terminal devices such as color television receivers (hereinafter abbreviated as color TVs) and color display devices for office automation terminals have been widely used. this color tv
Cathode ray tubes (color information display devices used in
In many cases, a filter for correcting and improving the contrast ratio is disposed or formed on the front surface of a CRT (hereinafter abbreviated as CRT).
このカラーＴＶのＣＲＴにおいては、ブラックマトリッ
クス方式等によりこのコントラスト比の向上が図られて
来たが、又、このコントラスト比はこのＣＲＴの発光面
の発光輝度と外光との関係で決まるため、第２図に示す
ように、このフィルタの光透過率を下げることによりこ
のコントラスト比の向上が図られて来た。In CRTs for color TVs, efforts have been made to improve the contrast ratio using a black matrix method, etc., but since this contrast ratio is determined by the relationship between the luminance of the light emitting surface of the CRT and external light, As shown in FIG. 2, attempts have been made to improve this contrast ratio by lowering the light transmittance of this filter.
第２図は、従来のＣＲＴ用フィルタの例を示す説明図で
、同図（Ａ）は概略側断面図、同図（Ｂ）は光透過特性
グラフで、縦軸は光透過率（％）、横軸は波長（ｎｍ）
であり、同図（Ｃ）はコントラスト比の説明図である。Figure 2 is an explanatory diagram showing an example of a conventional CRT filter, in which (A) is a schematic side sectional view, and (B) is a graph of light transmission characteristics, with the vertical axis representing light transmittance (%). , the horizontal axis is the wavelength (nm)
The figure (C) is an explanatory diagram of the contrast ratio.
同図（Ａ）に示すように、従来例のＣＲＴ用フィルタ１
１は、ＣＲＴ２の発光面（表示面）２ａの前面に配設さ
れている。As shown in the same figure (A), a conventional CRT filter 1
1 is disposed in front of the light emitting surface (display surface) 2a of the CRT 2.
このＣＲＴ用フィルタ］１は、外光反射輝度を低減させ
るためのものであり、可視光の波長領域では略一定な光
透過率のスモークガラス板製で、同図（Ｂ）に示すよう
な光透過特性を持つものである。この場合、同図（Ｃ）
に示すように、光透過率が５０％と７０％の場合につい
て比較すると、前記発光面２ａでの反射率を１００％と
仮定すれば、光透過率の低い５０％の場合の方が、前述
の如く、コントラスト比の向上が図られる。This CRT filter] 1 is for reducing the reflected brightness of external light, and is made of a smoked glass plate with a substantially constant light transmittance in the visible wavelength region, and is designed to reduce the brightness of reflected external light. It has transmission characteristics. In this case, the same figure (C)
As shown in Figure 2, when comparing cases where the light transmittance is 50% and 70%, assuming that the reflectance at the light emitting surface 2a is 100%, the case where the light transmittance is low at 50% is higher than the case where the light transmittance is 50%. The contrast ratio can be improved as shown in FIG.
このＣＲＴ用フィルタ１１の取付方法は、同図（Ａ）に
示すように、前記ＣＲＴ２の発光面２ａの前面に空隙を
介して、このＣＲＴ２の保護を兼ねて、前記カラーＴＶ
等に組み込まれて配設される場合の他に、このカラーＴ
Ｖ等に組み込まれたこのＣＲＴ２の保護用の透明ガラス
板の前面に、着脱自在の別体のフィルタとして配設され
る場合と、このＣＲＴ２の発光面２ａの表面上に直接重
ねて形成されるか、又は、この発光面２ａのガラス自体
が上述の材質で形成される場合等がある。As shown in FIG. 2A, this CRT filter 11 is attached through a gap to the front surface of the light emitting surface 2a of the CRT 2 so as to protect the CRT 2.
In addition to being installed in a
In some cases, the filter is disposed as a separate detachable filter on the front surface of a transparent glass plate for protection of this CRT 2 incorporated in a V, etc., and in other cases, it is formed directly on the surface of the light emitting surface 2a of this CRT 2. Alternatively, the glass itself of the light emitting surface 2a may be formed of the above-mentioned material.
（発明が解決しようとする課題）
上記構成の従来例のＣＲＴ用フィルタ１１において、前
述のように、コントラスト比を向上させるために光透過
率を下げた場合には、映像が暗くなるという欠点をカバ
ーするため、前記発光面２ａの発光輝度を上げる必要が
生じる。しかし、この発光輝度を上げることには限界か
あり、加えて最近の高画質化傾向に伴う、開口率の低下
や前記ＣＲＴ２の電子ビームの絞り込みの必要性等の理
由により、この発光輝度を上げることは困難である。従
って、映像が暗くなるという問題点があった。(Problems to be Solved by the Invention) The conventional CRT filter 11 having the above configuration has the drawback that when the light transmittance is lowered to improve the contrast ratio, the image becomes darker. In order to cover the light emitting surface 2a, it is necessary to increase the luminance of the light emitting surface 2a. However, there is a limit to increasing this luminance, and in addition, due to the recent trend toward higher image quality, there is a need to reduce the aperture ratio and narrow down the electron beam of the CRT2, etc. That is difficult. Therefore, there was a problem that the image became dark.
本発明は上記の点に着目してなされたもので、カラー情
報表示装置の表示面の映像が暗くならず、しかもコント
ラスト比が向上するカラー情報表示装置用フィルタを提
供することを目的とするものである。The present invention has been made with attention to the above points, and an object of the present invention is to provide a filter for a color information display device that does not darken the image on the display surface of the color information display device and improves the contrast ratio. It is.
（課題を解決するための手段）
本発明のカラー情報表示装置用フィルタは、カラー情報
表示装置の表示面又は表示面上に配設又は形成されるフ
ィルタにおいて、このカラー情報表示装置でカラー表示
に使用される３原色の波長領域付近で光透過率が高く、
その他の波長領域て光透過率が低い領域を有する、異な
る光透過特性の複数の色素を有する色素層を備えるよう
構成したものである。(Means for Solving the Problems) A filter for a color information display device of the present invention is a filter disposed or formed on a display surface of a color information display device. High light transmittance near the wavelength range of the three primary colors used,
It is configured to include a dye layer having a plurality of dyes having different light transmission characteristics and having a region with low light transmittance in other wavelength regions.
（実施例）
本発明のカラー情報表示装置用フィルタは、前記光透過
特性が、カラー情報表示装置でカラー表示に使用される
３原色の波長領域で光透過率が高く、その他の波長領域
では光透過率が低い、即ち光吸収性が高い特性となるよ
うに、光透過特性の異なる複数の色素を適宜組み合わせ
て構成したものである。(Example) The filter for a color information display device of the present invention has the light transmission characteristics such that the light transmittance is high in the wavelength range of the three primary colors used for color display in the color information display device, and the light transmittance is high in the wavelength range of the three primary colors used for color display in the color information display device. It is constructed by appropriately combining a plurality of dyes with different light transmission characteristics so as to have a characteristic of low transmittance, that is, high light absorption.
本発明の一実施例について、従来例と同様に、ＣＲＴ用
フィルタの例について第１図で説明する。An embodiment of the present invention will be described with reference to FIG. 1 regarding an example of a CRT filter, similar to the conventional example.
本発明の一実施例は上述の如く、材質及び光透過特性が
従来例と異なるものであるから、従来例と同様部分には
同符号、同名称を付し、その説明を省略する。As described above, the embodiment of the present invention is different from the conventional example in terms of material and light transmission characteristics, so the same parts as in the conventional example are given the same reference numerals and names, and their explanation will be omitted.
第１図は、本発明のカラー情報表示装置用フィルタの一
実施例であるＣＲＴ用フィルタの例を示す説明図で、同
図（Ａ）は概略側断面図、同図（Ｂ）は光透過特性グラ
フ、同図（Ｃ）は製造方法を説明するための光透過特性
グラフである。FIG. 1 is an explanatory view showing an example of a CRT filter, which is an embodiment of the color information display filter of the present invention, in which (A) is a schematic side sectional view, and (B) is a light transmitting The characteristic graph (C) is a light transmission characteristic graph for explaining the manufacturing method.
同図（Ａ）に示すように、本発明の一実施例のＣＲＴ用
フィルタ１は、カラー表示に使用される３原色が、例え
ば赤、緑、青である前記ＣＲＴ２の発光面（表示面）２
ａの前面に、前述の従来例の場合と同様に配設されてい
る。この３原色の発光ピーク波長は、赤が６３０ ｎｍ
、緑が５３０ ｎｍ。As shown in FIG. 2A, a filter 1 for a CRT according to an embodiment of the present invention has a light-emitting surface (display surface) of the CRT 2 in which the three primary colors used for color display are, for example, red, green, and blue. 2
It is disposed on the front surface of a in the same way as in the conventional example described above. The emission peak wavelength of these three primary colors is 630 nm for red.
, green is 530 nm.
青が４５０ｒ＋ＩＴｌ付近である。Blue is around 450r+ITl.
本発明の一実施例の前記ＣＲＴ用フィルタ１の光透過特
性は、同図（Ｂ）に示すように、この３原色の発光ピー
ク波長領域で光透過率が高く、その他の波長領域では光
透過率か低い、即ち光吸収性が高い特性となっている。The light transmission characteristics of the CRT filter 1 according to the embodiment of the present invention are as shown in FIG. It has a characteristic of low light absorption, that is, high light absorption.
このＣＲＴ用フィルタ１の構成及びその製造方法は、透
明な支持体、例えば透明ガラス板１ａの表面上に、上記
光透過特性の色素を透明な樹脂溶液中に均一に分散させ
た塗料を均一な膜厚に塗付後乾燥させて形成された色素
層１ｂと、アクリルポリウレタン、エポキシ等の樹脂膜
である保護層１Ｃとが設けられたものである。この塗料
の色素は、例えば、アゾ系、フタロシアニン系、ジオキ
サジン系、アントラキノン系等の色素及び鉄、コバルト
、マンガン等の化合物からなる染料や顔料中から適宜選
定され、混合されたものであり、又、この樹脂溶液は、
例えば、ゼラチン、ガゼイン。The structure of this CRT filter 1 and its manufacturing method are such that a coating material in which a dye having the above-mentioned light transmitting properties is uniformly dispersed in a transparent resin solution is coated on the surface of a transparent support, for example, a transparent glass plate 1a. The dye layer 1B is formed by coating to a thickness and then drying, and the protective layer 1C is a resin film such as acrylic polyurethane or epoxy. The pigments in this paint are appropriately selected and mixed from dyes and pigments such as azo-based, phthalocyanine-based, dioxazine-based, and anthraquinone-based dyes, and compounds such as iron, cobalt, and manganese. , this resin solution is
For example, gelatin, casein.
ポリビニルアルコール、ポリビニルピロリドンアクリル
、ポリイミド等の透明樹脂が用いられる。Transparent resins such as polyvinyl alcohol, polyvinylpyrrolidone acrylic, and polyimide are used.
同図（Ｃ）に示すように、例えば、波長５９０ ｎｍ付
近で光吸収性が高い特性３の色素、例えばアントラキノ
ン系の配合色素と、波長４８０ ｎ＋ｎ付近で光吸収性
が高い特性４の色素、例えばアゾ系の配合色素とが組み
合わされて、前述の同図（Ｂ）の光透過特性か得られる
。As shown in the same figure (C), for example, a dye of characteristic 3 that has high light absorption at a wavelength of around 590 nm, such as an anthraquinone compound dye, and a dye of characteristic 4 that has high light absorption around a wavelength of 480 n+n, For example, when combined with an azo dye, the light transmission characteristics shown in FIG.
前記ＣＲＴ用フィルタ１の製造方法の他の例として、上
記それぞれの色素をそれぞれの樹脂溶液中に均一に分散
させ、２色重ね、あるいはそれ以上に積層することも出
来る。As another example of the manufacturing method of the CRT filter 1, each of the above-mentioned dyes may be uniformly dispersed in each resin solution, and two or more colors may be layered.
更に、他の方法として、前記支持体の片側又は両側表面
上に、スピンコード法やデイツプコート法により均一な
膜厚のこの樹脂溶液による樹脂層を形成後、この色素に
より着色することも出来る。Furthermore, as another method, it is also possible to form a resin layer of this resin solution with a uniform thickness on one or both surfaces of the support by spin coding or dip coating, and then coloring with this dye.
この色素の着色条件が異なる場合には、同工程を繰り返
すことにより積層構造からなる着色層を形成してもよい
。When the coloring conditions of this dye are different, a colored layer having a laminated structure may be formed by repeating the same process.
又、前記フィルタ１の外表面での外光反射を防止するた
め、反射防止処理としてのアンチ・リフレクション処理
、ノン・グレア処理あるいは他の適当な処理を施すこと
も出来る。Further, in order to prevent reflection of external light on the outer surface of the filter 1, anti-reflection treatment, non-glare treatment, or other appropriate treatment may be applied as anti-reflection treatment.
以上の構成の本発明の一実施例のＣＲＴ用フィルタ１は
、赤、緑、青の３原色の発光ピークの波長領域では光透
過率が高く、その他の波長領域では光透過率が低いから
、前記ＣＲＴ２の発光面２ａからの発光輝度が増加し、
外光反射輝度が低減するため、前述のコントラスト比が
向上し、しかも、この発光面２ａの映像が暗くなること
はない。又、上述の光透過特性の前記色素層１ｂを設け
たものであるから、従来例に比して特にコストアップと
なることはない。The CRT filter 1 according to the embodiment of the present invention having the above configuration has high light transmittance in the wavelength range of the emission peaks of the three primary colors of red, green, and blue, and low light transmittance in the other wavelength ranges. The luminance of light emitted from the light emitting surface 2a of the CRT 2 increases,
Since the external light reflected brightness is reduced, the above-mentioned contrast ratio is improved, and the image of the light emitting surface 2a does not become dark. Furthermore, since the dye layer 1b having the above-mentioned light transmission characteristics is provided, there is no particular increase in cost compared to the conventional example.
なお、上述の本発明の一実施例は、カラー表示に使用さ
れる３原色が赤、緑、青の場合について説明したが、こ
れに限らず、他の３原色の場合についても同様に構成す
ることが出来る。例えば、この３原色がイエロー、シア
ン、マゼンタの場合は、その波長は、イエローが５７３
〜５７８ ｎｍ。Although the above-described embodiment of the present invention has been described in the case where the three primary colors used for color display are red, green, and blue, the configuration is not limited to this, and the same configuration can be applied to the case of other three primary colors. I can do it. For example, if these three primary colors are yellow, cyan, and magenta, the wavelength of yellow is 573
~578 nm.
シアンが４８８〜４９３ｎ１１ マゼンタが３８０〜４
６７ ｎｍであるから、この波長領域で光透過率が高く
、その他の波長領域では低い光透過特性となるように構
成すればよい。Cyan is 488~493n11 Magenta is 380~4
Since the wavelength is 67 nm, the structure may be such that the light transmittance is high in this wavelength range, and the light transmittance is low in other wavelength ranges.
又、上述の一実施例のフィルタ１は、前記透明な支持体
が透明ガラス板１ａであり、その表面上に色素と透明樹
脂よりなる色素層１ｂを形成した例について説明したが
、この透明な支持体を省略し、この色素層１ｂの透明樹
脂でこの透明な支持体を兼用出来るのは勿論である。特
に、前述の如く、前記ＣＲＴ２の発光面２ａの表面上に
直接重ねてこのフィルタを形成する場合は、この方がよ
い。又、前述の従来例の場合と同様に、この発光面２ａ
のガラス自体を、上述の光透過特性の色素が混入された
祠質で形成出来るのは勿論である。Further, in the filter 1 of the above embodiment, the transparent support is a transparent glass plate 1a, and the dye layer 1b made of a dye and a transparent resin is formed on the surface of the transparent support. Of course, the support can be omitted and the transparent resin of the dye layer 1b can also serve as the transparent support. This is particularly preferred when the filter is formed directly on the light emitting surface 2a of the CRT 2 as described above. Also, as in the case of the conventional example described above, this light emitting surface 2a
Of course, the glass itself can be made of abrasive material mixed with the above-mentioned dye having the light transmitting property.
（発明の効果）
以上の構成よりなる本発明のカラー情報表示装置用フィ
ルタは、カラー情報表示装置の表示面の映像が暗くなる
ことなしに、コントラスト比が向上するから、コストの
割りにこのカラー情報表示装置の機能を向上することが
出来る。(Effects of the Invention) The filter for a color information display device of the present invention having the above configuration improves the contrast ratio without darkening the image on the display surface of the color information display device. The functions of the information display device can be improved.
第１図は本発明のカラー情報表示装置用フィルタの一実
施例であるＣＲＴ用フィルタの例を示す説明図で、同図
（Ａ）は概略側断面図、同図（Ｂ）は光透過特性グラフ
、同図（Ｃ）は製造方法を説明するための光透過特性グ
ラフ、第２図は従来のＣＲＴ用フィルタの例を示す説明
図である。
１．１１・・・ＣＲＴ用フィルタ、
１ａ・・・透明ガラス板、１ｂ・・色素層、１ｃ・・・
保護層、２・・・ＣＲＴ （陰極線管）、２ａ・・・発
光面（表示面）。
特許出願人 日本ビクター株式会社
代表者 垣木邦夫
≠
瓢長包ｍ）FIG. 1 is an explanatory view showing an example of a CRT filter, which is an embodiment of the filter for color information display devices of the present invention. FIG. 2C is a light transmission characteristic graph for explaining the manufacturing method, and FIG. 2 is an explanatory diagram showing an example of a conventional CRT filter. 1.11...CRT filter, 1a...Transparent glass plate, 1b...Dye layer, 1c...
Protective layer, 2...CRT (cathode ray tube), 2a... light emitting surface (display surface). Patent applicant: Japan Victor Co., Ltd. Representative: Kunio Kakiki ≠ Gourd Changbao m)
Claims (1)
成されるフィルタにおいて、このカラー情報表示装置で
カラー表示に使用される３原色の波長領域付近で光透過
率が高く、その他の波長領域で光透過率が低い領域を有
する、異なる光透過特性の複数の色素を有する色素層を
備えたことを特徴とするカラー情報表示装置用フィルタ
。In a display surface of a color information display device or a filter disposed or formed on the display surface, the light transmittance is high in the vicinity of the wavelength range of the three primary colors used for color display in this color information display device, and in other wavelength regions. 1. A filter for a color information display device, comprising a dye layer having a plurality of dyes having different light transmission characteristics and having a region with low light transmittance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1031524A JPH02210486A (en) | 1989-02-10 | 1989-02-10 | Filter for color information display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1031524A JPH02210486A (en) | 1989-02-10 | 1989-02-10 | Filter for color information display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02210486A true JPH02210486A (en) | 1990-08-21 |
Family
ID=12333578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1031524A Pending JPH02210486A (en) | 1989-02-10 | 1989-02-10 | Filter for color information display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02210486A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6165546A (en) * | 1996-11-25 | 2000-12-26 | Asahi Glass Company, Limited | Spectrally tuned multiple bandpass filters for video displays |
| US6229252B1 (en) | 1999-01-21 | 2001-05-08 | Asahi Glass Company, Limited | Dye combinations for multiple bandpass filters for video displays |
| EP1153322A4 (en) * | 1999-01-21 | 2002-06-19 | Asahi Glass Co Ltd | COLOR COMBINATIONS FOR IMAGE ENHANCING FILTERS APPLICABLE TO COLOR VIDEO SCREENS |
| JP2014021430A (en) * | 2012-07-23 | 2014-02-03 | Dainippon Printing Co Ltd | Color filter formed substrate and organic el display device |
-
1989
- 1989-02-10 JP JP1031524A patent/JPH02210486A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6165546A (en) * | 1996-11-25 | 2000-12-26 | Asahi Glass Company, Limited | Spectrally tuned multiple bandpass filters for video displays |
| US6229252B1 (en) | 1999-01-21 | 2001-05-08 | Asahi Glass Company, Limited | Dye combinations for multiple bandpass filters for video displays |
| US6344710B2 (en) | 1999-01-21 | 2002-02-05 | Asahi Glass Company, Limited | Dye combinations for multiple bandpass filters for video displays |
| EP1153322A4 (en) * | 1999-01-21 | 2002-06-19 | Asahi Glass Co Ltd | COLOR COMBINATIONS FOR IMAGE ENHANCING FILTERS APPLICABLE TO COLOR VIDEO SCREENS |
| JP2002540442A (en) * | 1999-01-21 | 2002-11-26 | 旭硝子株式会社 | Dye combinations for image quality improvement filters of color video displays |
| EP1151455A4 (en) * | 1999-01-21 | 2003-04-02 | Asahi Glass Co Ltd | DYE COMBINATION FOR MULTIPLE BAND PASS FILTERS FOR VIDEO DISPLAYS |
| US6768602B2 (en) | 1999-01-21 | 2004-07-27 | Asahi Glass Company, Limited | Dye combinations for multiple bandpass filters for video displays |
| US6989112B2 (en) | 1999-01-21 | 2006-01-24 | Asahi Glass Company Ltd. | Dye combinations for image enhancement filters for color video displays |
| US7064892B2 (en) | 1999-01-21 | 2006-06-20 | Asahi Glass Company, Limited | Dye combinations for multiple bandpass filters for video displays |
| EP1956398A1 (en) * | 1999-01-21 | 2008-08-13 | Asahi Glass Company, Limited | Dye combinations for multiple bandpass filters for video displays |
| JP2014021430A (en) * | 2012-07-23 | 2014-02-03 | Dainippon Printing Co Ltd | Color filter formed substrate and organic el display device |
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